HarmonyOS应用开发--社区型APP文化乡道[V2.1.0版][API V6]

• 1. 名称
• 2. 系统设计
• •   2.1 功能描述
  •   2.2 前后端概述
  •   2.3 总体设计
  •   2.4 数据库设计
  • •     2.4.1 概念结构设计
    •     2.4.2 逻辑结构设计
    •     2.4.3 物理结构设计
    • •     a.USERS表
      •     b.FIELD表
      •     c.USER_CONTENTS表
      •     d.AGREE表
      •     e.COLLECT表
      •     f.DISCUSS表
  •   2.5 详细设计
  •     2.5.1 UI界面-V2.1.1版
  •     2.5.2 流程图（部分示意）
• 3. app实现关键技巧
• 4. 源代码
• •     4.0 APP客户端工程文件结构
  •     4.1 Java主要源代码
  • •       4.1.1 DataCenterControl.java
    •       4.1.2 MyTools.java
• 5. 服务器端python源代码
• •   5.1 createDataBaseAndTables.py
  •   5.2 views.py
  •   5.3 urls.py
• 6. app运行视频（V2.0.0本地模拟器运行）

1. 名称

• 本次使用Java UI开发模式实现了一个社区型APP，命名为：文化乡道，RuralCommunity。
• 采用C/S架构+B/S架构，其中以C/S为主、B/S为辅，混合架构。
• 项目已经放置在Gitee仓库中：RuralCommunity-这里只放V2.0.0版本。
• 项目已经放置在Gitee仓库中：RuralCommunity-这里放后续开发版本。
• 代码规模：APP客户端：JAVA代码达6000余行、XML界面代码达2100余行；服务器端：python 代码达1500余行。
• 本专栏关于使用开发语言的声明：全专栏专注于Java语言开发模式！
• app图标：

• APP页面结构：

2. 系统设计

  2.1 功能描述

APP客户端具备：

• 发布内容、删除内容
• 点赞、取消点赞
• 收藏、取消收藏
• 关注、取消关注
• 评论

  2.2 前后端概述

【1】APP客户端：
采用JAVA UI开发模式，使用单个MainAbility，该MainAbility包含14个AbilitySlice。
其中，在MainAbilitySlice中采用的上、中、下三段式页面结构。上、中可以使用XML动态装载技术，根据下部的TabLiist导航tab不同，去装载不同的上、中子布局。
在APP客户端中，只涉及用户个人注册信息的存储，使用鸿蒙API给出的基于XML的轻量偏好型键值对数据库去存储。
【2】服务器端：
采用python django 3.2，使用MVT模式中的V，在views.py中直接导入pymysql模块，直接拼接字符串，去执行SQL语句即可，总共设计了24个网络接口，在后续章节给出。
数据库方面，采用Mysql 8，特别的，需要使用其json数据存储类型。

  2.3 总体设计

【用户指令处理】（1）登录指令（2）注册指令（3）销毁指令（4）全站动态请求指令（5）全站项目请求指令（6）全站文章请求指令（7）全站领域请求指令（8）内容阅读指令（9）点赞指令（10）取消点赞指令（11）收藏指令（12）取消收藏指令（13）评论指令（14）关注指令（15） 取消关注指令（16）用户内容发布指令（17）用户内容删除指令（18）请求用户消息列表指令（19）请求用户内容列表指令（20）请求内容评论列表指令（21）请求用户关注数量、粉丝数量、阅读数量指令（22）搜索用户指令（23）请求关注列表指令（24）请求粉丝列表指令

  2.4 数据库设计

    2.4.1 概念结构设计

    2.4.2 逻辑结构设计

（1）用户（用户账号，密码，邮箱，年龄，性别），     主码：用户账号；（2）点赞（点赞编号，点赞时间，内容编号，用户账号），     主码：点赞编号，外码：内容编号、用户账号；（3）领域（领域编号、领域名称），主码：领域编号。（4）用户内容（内容编号，内容类别，发表日期，内容详情，阅读量，用户账号，领域编号），     主码：内容编号，外码：用户账号、领域编号；（5）评论（评论编号，评论详情，评论时间，内容编号，用户账号），     主码：评论编号，外码：内容编号、用户账号；（6）收藏（收藏编号，收藏时间，内容编号，用户账号），    主码：收藏编号，外码：内容编号、用户账号。

    2.4.3 物理结构设计

在MySql 8环境中，设计数据库表如下：

    a.USERS表

    b.FIELD表

    c.USER_CONTENTS表

    d.AGREE表

    e.COLLECT表

    f.DISCUSS表

  2.5 详细设计

    2.5.1 UI界面-V2.1.1版

    2.5.2 流程图（部分示意）

• APP客户端：登录流程图
  

• 服务器端：登录流程图
  

• APP客户端：内容发布流程图
  

• 服务器端：关注指令处理
  

3. app实现关键技巧

• 在APP中，采用了一个“数据中心”模式，即有一个类里面全是静态类型。
  用于充当应用内软总线，就如同提线木偶，该数据中心把其他的类“牵在手中”。
• 鸿蒙的网络请求必须放在另外的线程中，不能在UI主线程中。
  因此，在其他线程中请求网络，当获取到服务器端返回的结果，依据此结果，使用UI任务分发器，向UI主线程中使用异步方式派发任务，让UI主线程更新UI界面，即可实现服务器端与APP客户端的交互。

4. 源代码

    4.0 APP客户端工程文件结构

    4.1 Java主要源代码

      4.1.1 DataCenterControl.java

package com.tdtxdcxm.ruralcommunity.appruntime;import com.tdtxdcxm.ruralcommunity.ResourceTable;import com.tdtxdcxm.ruralcommunity.items.LCArryListContentItem;import com.tdtxdcxm.ruralcommunity.items.LCArryListNormalItem;import com.tdtxdcxm.ruralcommunity.providers.LCProviderForContent;import com.tdtxdcxm.ruralcommunity.providers.LCProviderForNormal;import com.tdtxdcxm.ruralcommunity.providers.PSProvider;import ohos.aafwk.ability.AbilitySlice;import ohos.agp.components.DirectionalLayout;import ohos.agp.components.LayoutScatter;import ohos.agp.components.webengine.WebView;import java.util.ArrayList;public class DataCenterControl {    //这里是数据指挥中心，程序内软数据总线    private DataCenterControl(){}    public static String messageNoticeUrlString = "https://www.gitee.com/";//消息——通知所加载的html网页地址    public static String serverIpWithPort = "http:127.0.0.1:8000/";//服务器地址,写上自己服务器的公网IP+端口号    public static WebView webView = null;    public static String userName = "";    public static String age = "";    public static String gender = "";    public static String followsum = "";    public static String fanssum = "";    public static String readvalue = "";    public static final String[] fields = {"艺","衣","食","住","行","学","文"};    //首页-中间区域-pageslider每一页的子布局数据源列表    public static final ArrayList<DirectionalLayout> firstcenter_pageslist = new ArrayList<>();    //领域-中间区域-pageslider每一页的子布局数据源列表    public static final ArrayList<DirectionalLayout> secondcenter_pageslist = new ArrayList<>();    //消息-中间区域-pageslider每一页的子布局数据源列表    public static final ArrayList<DirectionalLayout> fourthcenter_pageslist = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> worlddt_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> worldxm_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> worldwz_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> art_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> clothe_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> food_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> house_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> traffic_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> study_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> culture_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> messageagree_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> messagediscuss_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> messagecollect_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> follow_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> fans_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> discuss_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListNormalItem> people_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> userdt_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> userxm_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> userwz_listcontainer_list = new ArrayList<>();    public static final ArrayList<LCArryListContentItem> usercollect_listcontainer_list = new ArrayList<>();    public static LCProviderForContent worldDtListContainerProvider = null;    public static LCProviderForContent worldXmListContainerProvider = null;    public static LCProviderForContent worldWzListContainerProvider = null;    public static LCProviderForContent artListContainerProvider = null;    public static LCProviderForContent clotheListContainerProvider = null;    public static LCProviderForContent foodListContainerProvider = null;    public static LCProviderForContent houseListContainerProvider = null;    public static LCProviderForContent trafficListContainerProvider = null;    public static LCProviderForContent studyListContainerProvider = null;    public static LCProviderForContent cultureListContainerProvider = null;    public static LCProviderForNormal messageAgreeListContainerProvider = null;    public static LCProviderForNormal messageDiscussListContainerProvider = null;    public static LCProviderForNormal messageCollectListContainerProvider = null;    public static LCProviderForNormal followAndFanaListListContainerProvider = null;    public static LCProviderForNormal discussListContainerProvider = null;    public static LCProviderForNormal peopleListContainerProvider = null;    public static LCProviderForContent userDtListContainerProvider = null;    public static LCProviderForContent userXmListContainerProvider = null;    public static LCProviderForContent userWzListContainerProvider = null;    public static LCProviderForContent userCollectListContainerProvider = null;    public static PSProvider firstcenter_pgSliderProvider = null;    public static PSProvider secondcenter_pgSliderProvider = null;    public static PSProvider fourthcenter_pgSliderProvider = null;    public static void addDataToPagesList(AbilitySlice abilitySlice,int n,int typeN){ switch (typeN) {     case 0:  firstcenter_pageslist.clear();  for (int i = 0; i < n; i++) {      DirectionalLayout directionalLayout = (DirectionalLayout) LayoutScatter.getInstance(abilitySlice.getContext()).parse(ResourceTable.Layout_pageslider_item_listcontainer,null,false);      firstcenter_pageslist.add(directionalLayout);  }  break;     case 1:  secondcenter_pageslist.clear();  for (int i = 0; i < n; i++) {      DirectionalLayout directionalLayout = (DirectionalLayout) LayoutScatter.getInstance(abilitySlice.getContext()).parse(ResourceTable.Layout_pageslider_item_listcontainer,null,false);      secondcenter_pageslist.add(directionalLayout);  }  break;     case 2:  break;     case 3:  fourthcenter_pageslist.clear();  for (int i = 0; i < n; i++) {      if(i == 0){   DirectionalLayout directionalLayout = (DirectionalLayout) LayoutScatter    .getInstance(abilitySlice.getContext())    .parse(ResourceTable.Layout_pageslider_item_webview,null,false);   fourthcenter_pageslist.add(directionalLayout);   continue;      }      DirectionalLayout directionalLayout = (DirectionalLayout) LayoutScatter.getInstance(abilitySlice.getContext()).parse(ResourceTable.Layout_pageslider_item_listcontainer,null,false);      fourthcenter_pageslist.add(directionalLayout);  }  break;     default:  break; }    }}

      4.1.2 MyTools.java

package com.tdtxdcxm.ruralcommunity.myutils;import com.tdtxdcxm.ruralcommunity.appruntime.DataCenterControl;import com.tdtxdcxm.ruralcommunity.appruntime.UserConfigInfo;import com.tdtxdcxm.ruralcommunity.httpmanagers.ThreadPoolUtil;import com.tdtxdcxm.ruralcommunity.items.LCArryListContentItem;import com.tdtxdcxm.ruralcommunity.items.LCArryListNormalItem;import com.tdtxdcxm.ruralcommunity.providers.LCProviderForContent;import com.tdtxdcxm.ruralcommunity.slice.*;import ohos.aafwk.ability.AbilitySlice;import ohos.aafwk.content.Intent;import ohos.aafwk.content.Operation;import ohos.agp.components.*;import ohos.agp.utils.LayoutAlignment;import ohos.agp.window.dialog.CommonDialog;import ohos.agp.window.dialog.IDialog;import ohos.agp.window.dialog.ToastDialog;import ohos.app.Context;import ohos.net.NetHandle;import ohos.net.NetManager;import ohos.net.NetStatusCallback;import ohos.utils.zson.ZSONObject;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLConnection;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;public class MyTools {    private MyTools(){}    /*<http构造表单上传注册数据区域*/    public static void UpDataRegeisterInfo(AbilitySlice slice, String[][] userinfo, Text reg_tstext, TextField reg_usernametfd, TextField reg_passwordtfd, TextField reg_email, RadioContainer reg_dll2_1_radiocontainer,TextField reg_nl){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "register/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      for(int i = 0;i < userinfo.length;i++){   if(i == 0){stringBuilder.append(userinfo[0][0]);stringBuilder.append("=");stringBuilder.append(userinfo[0][1]);continue;   }   stringBuilder.append("&");   stringBuilder.append(userinfo[i][0]);   stringBuilder.append("=");   stringBuilder.append(userinfo[i][1]);      }      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      try {   InputStream inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = new String(outputStream.toByteArray());      if(result.equals("OK")){   DataCenterControl.userName = userinfo[0][1];   DataCenterControl.gender = userinfo[3][1];   DataCenterControl.age = userinfo[4][1];   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    reg_tstext.setText("注册成功");    reg_usernametfd.setText("");    reg_passwordtfd.setText("");    reg_email.setText("");    reg_dll2_1_radiocontainer.cancelMarks();    reg_nl.setText("");    UserConfigInfo.pushData(slice.getContext(),userinfo);//将注册数据写入本地数据库    RegisterSlice.toanotherslice = true;}   });   slice.present(new MainAbilitySlice(),new Intent());      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    reg_tstext.setText("注册失败");}   });      }  }     } catch (IOException e) {} finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http构造表单上传注册数据区域*>*/    /*<http构造表单上传注登录数据区域*/    public static void UpDataLoginInfo(AbilitySlice slice,String[] userinfo,String[][] userinfodown,Text log_tstext,TextField log_usernametfd,TextField log_passwordtfd){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "login/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username");      stringBuilder.append("=");      stringBuilder.append(userinfo[0]);      stringBuilder.append("&");      stringBuilder.append("password");      stringBuilder.append("=");      stringBuilder.append(userinfo[1]);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      try {   InputStream inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = new String(outputStream.toByteArray());      String[] userinfos = result.split(",");      if(userinfos[0].equals("OK")){   userinfodown[0][0] = "username";   userinfodown[0][1] = userinfos[1];   userinfodown[1][0] = "password";   userinfodown[1][1] = userinfos[2];   userinfodown[2][0] = "email";   userinfodown[2][1] = userinfos[3];   userinfodown[3][0] = "gender";   userinfodown[3][1] = userinfos[4];   userinfodown[4][0] = "age";   userinfodown[4][1] = userinfos[5];   UserConfigInfo.pushData(slice.getContext(),userinfodown);   DataCenterControl.userName = userinfo[0];   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    log_tstext.setText("登录成功");    log_usernametfd.setText("");    log_passwordtfd.setText("");    DataCenterControl.age = userinfos[5];    DataCenterControl.gender = userinfos[4];    LoginSlice.toanotherslice = true;}   });   slice.present(new MainAbilitySlice(),new Intent());      }      else{   if(userinfos[0].equals("NOT")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { log_tstext.setText("远程验证：账号未注册！");    }});   }   if(userinfos[0].equals("NO")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { log_tstext.setText("远程验证：密码错误！");    }});   }      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http构造表单上传登录数据区域*>*/    /*<http构造表单上传销毁指令数据区域*/    public static void UpDataDestoryInfo(AbilitySlice slice,String username){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "destory/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username");      stringBuilder.append("=");      stringBuilder.append(username);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.equals("OK")){   //销毁成功   UserConfigInfo.deleteUserInfo(slice.getContext(),DataCenterControl.userName);   DataCenterControl.userName = "";   ((MainAbilitySlice)slice).toanotherslice = true;   slice.present(new StartPage(),new Intent());      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("销毁失败", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http构造表单上传销毁指令数据区域*>*/    /*<http搜索用户数据区域*/    public static void UpDataSearchUserInfo(AbilitySlice slice, String username,String objectname){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "searchuser/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(username);      stringBuilder.append("&objectname=");      stringBuilder.append(objectname);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.startsWith("OK")){   //搜索成功   String finalResult = result;   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    DataCenterControl.people_listcontainer_list.clear();    DataCenterControl.people_listcontainer_list.add(new LCArryListNormalItem(finalResult.substring(3)));    if(DataCenterControl.peopleListContainerProvider != null){ DataCenterControl.peopleListContainerProvider.notifyDataChanged();    }}   });      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("搜索为空！", slice.getContext());}   });      }  }     } catch (IOException e) {} finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http搜索用户数据区域*>*/    /*<http请求全站内容列表数据区域*/    public static void DownDataWorldListInfo(AbilitySlice slice,String type,String field){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = null;     switch(type){  case "worlddt":      urlString = DataCenterControl.serverIpWithPort + "worlddt/";      break;  case "worldxm":      urlString = DataCenterControl.serverIpWithPort + "worldxm/";      break;  case "worldwz":      urlString = DataCenterControl.serverIpWithPort + "worldwz/";      break;  case "worldfield":      urlString = DataCenterControl.serverIpWithPort + "worldfield/";      break;  default:      urlString = DataCenterControl.serverIpWithPort + "index/";      break;     }     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("field_id=");      switch (field){   case "art":stringBuilder.append("1");break;   case "clothe":stringBuilder.append("2");break;   case "food":stringBuilder.append("3");break;   case "house":stringBuilder.append("4");break;   case "traffic":stringBuilder.append("5");break;   case "study":stringBuilder.append("6");break;   case "culture":stringBuilder.append("7");break;   default:stringBuilder.append("0");break;      }      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.indexOf("sum") != -1){   //请求全站动态成功   String finalResult = result;   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "worlddt":     ZSONObject zsonobject_dt = ZSONObject.stringToZSON(finalResult);     int sum_dt = Integer.parseInt(zsonobject_dt.getString("sum"));     DataCenterControl.worlddt_listcontainer_list.clear();     for(int i = 0;i < sum_dt;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_dt.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.worlddt_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.worldDtListContainerProvider != null){  DataCenterControl.worldDtListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("全站动态下载成功！", slice.getContext());     break; case "worldxm":     ZSONObject zsonobject_xm = ZSONObject.stringToZSON(finalResult);     int sum_xm = Integer.parseInt(zsonobject_xm.getString("sum"));     DataCenterControl.worldxm_listcontainer_list.clear();     for(int i = 0;i < sum_xm;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_xm.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.worldxm_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.worldXmListContainerProvider != null){  DataCenterControl.worldXmListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("全站项目下载成功！", slice.getContext());     break; case "worldwz":     ZSONObject zsonobject_wz = ZSONObject.stringToZSON(finalResult);     int sum_wz = Integer.parseInt(zsonobject_wz.getString("sum"));     DataCenterControl.worldwz_listcontainer_list.clear();     for(int i = 0;i < sum_wz;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_wz.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.worldwz_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.worldWzListContainerProvider != null){  DataCenterControl.worldWzListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("全站文章下载成功！", slice.getContext());     break; case "worldfield":     switch (field){  case "art":      ZSONObject zsonobject_art = ZSONObject.stringToZSON(finalResult);      int sum_art = Integer.parseInt(zsonobject_art.getString("sum"));      DataCenterControl.art_listcontainer_list.clear();      for(int i = 0;i < sum_art;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_art.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.art_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.art_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.artListContainerProvider != null){   DataCenterControl.artListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[艺]下载成功！", slice.getContext());      break;  case "clothe":      ZSONObject zsonobject_clothe = ZSONObject.stringToZSON(finalResult);      int sum_clothe = Integer.parseInt(zsonobject_clothe.getString("sum"));      DataCenterControl.clothe_listcontainer_list.clear();      for(int i = 0;i < sum_clothe;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_clothe.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.clothe_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.clothe_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.clotheListContainerProvider != null){   DataCenterControl.clotheListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[衣]下载成功！", slice.getContext());      break;  case "food":      ZSONObject zsonobject_food = ZSONObject.stringToZSON(finalResult);      int sum_food = Integer.parseInt(zsonobject_food.getString("sum"));      DataCenterControl.food_listcontainer_list.clear();      for(int i = 0;i < sum_food;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_food.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.food_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.food_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.foodListContainerProvider != null){   DataCenterControl.foodListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[食]下载成功！", slice.getContext());      break;  case "house":      ZSONObject zsonobject_house = ZSONObject.stringToZSON(finalResult);      int sum_house = Integer.parseInt(zsonobject_house.getString("sum"));      DataCenterControl.house_listcontainer_list.clear();      for(int i = 0;i < sum_house;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_house.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.house_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.house_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.houseListContainerProvider != null){   DataCenterControl.houseListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[住]下载成功！", slice.getContext());      break;  case "traffic":      ZSONObject zsonobject_traffic = ZSONObject.stringToZSON(finalResult);      int sum_traffic = Integer.parseInt(zsonobject_traffic.getString("sum"));      DataCenterControl.traffic_listcontainer_list.clear();      for(int i = 0;i < sum_traffic;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_traffic.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.traffic_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.traffic_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.trafficListContainerProvider != null){   DataCenterControl.trafficListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[行]下载成功！", slice.getContext());      break;  case "study":      ZSONObject zsonobject_study = ZSONObject.stringToZSON(finalResult);      int sum_study = Integer.parseInt(zsonobject_study.getString("sum"));      DataCenterControl.study_listcontainer_list.clear();      for(int i = 0;i < sum_study;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_study.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.study_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.study_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.studyListContainerProvider != null){   DataCenterControl.studyListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[学]下载成功！", slice.getContext());      break;  case "culture":      ZSONObject zsonobject_culture = ZSONObject.stringToZSON(finalResult);      int sum_culture = Integer.parseInt(zsonobject_culture.getString("sum"));      DataCenterControl.culture_listcontainer_list.clear();      for(int i = 0;i < sum_culture;i++){   ZSONObject t = ZSONObject.stringToZSON(zsonobject_culture.getString(String.valueOf(i)));   String field = t.getString("TYPE");   int detail_len = t.getString("DETAIL").length();   if(field.equals("动态") || field.equals("文章")){DataCenterControl.culture_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }   if(field.equals("项目")){DataCenterControl.culture_listcontainer_list.add( new LCArryListContentItem(t.getString("CONTENT_ID")  ,t.getString("TYPE")  ,t.getString("DATE")  ,t.getString("READVALUE")  ,t.getString("DETAIL")  ,t.getString("USER_ID")  ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1] ));   }      }      if(DataCenterControl.cultureListContainerProvider != null){   DataCenterControl.cultureListContainerProvider.notifyDataChanged();      }      MyTools.toastShow("[文]下载成功！", slice.getContext());      break;  default:      break;     }     break; default:     MyTools.toastShow("全站未知下载成功！", slice.getContext());     break;    }}   });      }      else if(result.equals("NULL")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("全站内容为空！", slice.getContext());}   });      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "worlddt":     MyTools.toastShow("全站动态下载失败！", slice.getContext());     break; case "worldxm":     MyTools.toastShow("全站项目下载失败！", slice.getContext());     break; case "worldwz":     MyTools.toastShow("全站文章下载失败！", slice.getContext());     break; default:     MyTools.toastShow("全站未知下载失败！", slice.getContext());     break;    }}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http请求全站内容列表数据区域*>*/    /*<http请求用户点赞、评论、收藏消息数据区域*/    public static void DownDataMessageListInfo(AbilitySlice slice,String type){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "message/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&messagetype=");      switch(type){   case "messageagree":stringBuilder.append("AGREE");break;   case "messagediscuss":stringBuilder.append("DISCUSS");break;   case "messagecollect":stringBuilder.append("COLLECT");break;   default:break;      }      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.indexOf("sum") != -1){   String finalResult = result;   switch (type) {case "messageagree":    ZSONObject zsonobject_agree = ZSONObject.stringToZSON(finalResult);    int sum_agree = Integer.parseInt(zsonobject_agree.getString("sum"));    DataCenterControl.messageagree_listcontainer_list.clear();    for(int i = 0;i < sum_agree;i++){ String info = zsonobject_agree.getString(String.valueOf(i)); DataCenterControl.messageagree_listcontainer_list.add(new LCArryListNormalItem(info));    }    break;case "messagediscuss":    ZSONObject zsonobject_discuss = ZSONObject.stringToZSON(finalResult);    int sum_discuss = Integer.parseInt(zsonobject_discuss.getString("sum"));    DataCenterControl.messagediscuss_listcontainer_list.clear();    for(int i = 0;i < sum_discuss;i++){ String info = zsonobject_discuss.getString(String.valueOf(i)); DataCenterControl.messagediscuss_listcontainer_list.add(new LCArryListNormalItem(info));    }    break;case "messagecollect":    ZSONObject zsonobject_collect = ZSONObject.stringToZSON(finalResult);    int sum_collect = Integer.parseInt(zsonobject_collect.getString("sum"));    DataCenterControl.messagecollect_listcontainer_list.clear();    for(int i = 0;i < sum_collect;i++){ String info = zsonobject_collect.getString(String.valueOf(i)); DataCenterControl.messagecollect_listcontainer_list.add(new LCArryListNormalItem(info));    }    break;default:    break;   }   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "messageagree":     if(DataCenterControl.messageAgreeListContainerProvider != null){  DataCenterControl.messageAgreeListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户点赞消息下载成功！", slice.getContext());     break; case "messagediscuss":     if(DataCenterControl.messageDiscussListContainerProvider != null){  DataCenterControl.messageDiscussListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户评论消息下载成功！", slice.getContext());     break; case "messagecollect":     if(DataCenterControl.messageCollectListContainerProvider != null){  DataCenterControl.messageCollectListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户收藏消息下载成功！", slice.getContext());     break; default:     MyTools.toastShow("全站未知下载成功！",slice.getContext());     break;    }}   });      }      else if(result.equals("NULL")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "messageagree":     DataCenterControl.messageagree_listcontainer_list.clear();     if(DataCenterControl.messageAgreeListContainerProvider != null){  DataCenterControl.messageAgreeListContainerProvider.notifyDataChanged();     }     break; case "messagediscuss":     DataCenterControl.messagediscuss_listcontainer_list.clear();     if(DataCenterControl.messageDiscussListContainerProvider != null){  DataCenterControl.messageDiscussListContainerProvider.notifyDataChanged();     }     break; case "messagecollect":     DataCenterControl.messagecollect_listcontainer_list.clear();     if(DataCenterControl.messageCollectListContainerProvider != null){  DataCenterControl.messageCollectListContainerProvider.notifyDataChanged();     }     break;    }    MyTools.toastShow("用户消息为空！", slice.getContext());}   });      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "messageagree":     MyTools.toastShow("用户点赞消息下载失败！", slice.getContext());     break; case "messagediscuss":     MyTools.toastShow("用户评论消息下载失败！", slice.getContext());     break; case "messagecollect":     MyTools.toastShow("用户收藏下载失败！", slice.getContext());     break; default:     MyTools.toastShow("用户未知消息下载失败！", slice.getContext());     break;    }}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http请求用户点赞、评论、收藏消息数据区域*>*/    /*<http发送关注或取消关注指令区域*/    public static void UpDataFollowInfo(AbilitySlice slice, Component component, String user_id, int i, String operation){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = "";     if(operation.equals("关注")){  urlString = DataCenterControl.serverIpWithPort + "follow/?";     }     if(operation.equals("取消关注")){  urlString = DataCenterControl.serverIpWithPort + "unfollow/?";     }     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&user_id=");      stringBuilder.append(user_id);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      String[] tosettext = {"","",""};      if(result.equals("OK")){   if(operation.equals("关注")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { //i是-1是代表是搜索用户结果列表的中操作,i是-2是代表内容详情页中的操作 if(i == -1){     DataCenterControl.people_listcontainer_list.get(0).setContent(user_id+"[已关注]");     DataCenterControl.peopleListContainerProvider.notifyDataChanged(); } else if(i == -2){     ((Text)component).setText("已关注"); } MyTools.toastShow("已关注",slice.getContext());    }});   }   if(operation.equals("取消关注")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { //i是-1是代表是搜索用户结果列表的中操作,i是-2是代表内容详情页中的操作，其余i是大于等于0是代表用户关注列表中的操作 if(i == -1){     DataCenterControl.people_listcontainer_list.remove(0);     DataCenterControl.peopleListContainerProvider.notifyDataChanged(); } else if(i == -2){     ((Text)component).setText("关注"); } else{     DataCenterControl.follow_listcontainer_list.remove(i);     DataCenterControl.followAndFanaListListContainerProvider.notifyDataChanged(); } MyTools.toastShow("已取消关注",slice.getContext());    }});   }      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http发送关注或取消关注指令区域*>*/    /*<http请求关注数目、粉丝数目、阅读数目数据区域*/    public static void DownDataFollowFansReadvalueInfo(AbilitySlice slice,String username,Text[] followfansread){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "count/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username");      stringBuilder.append("=");      stringBuilder.append(username);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.startsWith("OK")){   String[] numbers = result.substring(3).split(",");   if(followfansread != null){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { followfansread[0].setText(numbers[0]); followfansread[1].setText(numbers[1]); followfansread[2].setText(numbers[2]);    }});   }      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("计数请求失败", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http请求关注数目、粉丝数目、阅读数目数据区域*>*/    /*<http下载用户关注和粉丝列表据区域*/    public static void DownDataFollowAndFanslistInfo(AbilitySlice slice,String username,String type){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = null;     switch (type) {  case "followlist":      urlString = DataCenterControl.serverIpWithPort + "followlist/?";      break;  case "fanslist":      urlString = DataCenterControl.serverIpWithPort + "fanslist/?";      break;  default:      urlString = DataCenterControl.serverIpWithPort + "inedx/?";      break;     }     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(username);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.indexOf("sum") != -1){   //搜索成功   String finalResult = result;   switch (type){case "followlist":    DataCenterControl.follow_listcontainer_list.clear();    ZSONObject zsonobject_follow = ZSONObject.stringToZSON(finalResult);    int sum_follow = Integer.parseInt(zsonobject_follow.getString("sum"));    for(int i = 0;i < sum_follow;i++){ String info = zsonobject_follow.getString(String.valueOf(i)); DataCenterControl.follow_listcontainer_list.add(new LCArryListNormalItem(info));    }    slice.getUITaskDispatcher().asyncDispatch(new Runnable() { @Override public void run() {     if(DataCenterControl.followAndFanaListListContainerProvider != null){  DataCenterControl.followAndFanaListListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("关注列表下载成功！", slice.getContext()); }    });    break;case "fanslist":    DataCenterControl.fans_listcontainer_list.clear();    ZSONObject zsonobject_fans = ZSONObject.stringToZSON(finalResult);    int sum_fans = Integer.parseInt(zsonobject_fans.getString("sum"));    for(int i = 0;i < sum_fans;i++){ String info = zsonobject_fans.getString(String.valueOf(i)); DataCenterControl.fans_listcontainer_list.add(new LCArryListNormalItem(info));    }    slice.getUITaskDispatcher().asyncDispatch(new Runnable() { @Override public void run() {     if(DataCenterControl.followAndFanaListListContainerProvider != null){  DataCenterControl.followAndFanaListListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("粉丝列表下载成功！", slice.getContext()); }    });    break;default:    break;   }      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("好友为空！", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http下载用户关注和粉丝列表据区域*>*/    /*<http请求用户内容列表与收藏列表数据区域*/    public static void DownDataUserContentListInfo(AbilitySlice slice,String type){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "usercontentlist/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&type=");      switch(type){   case "dtlist":stringBuilder.append("dtlist");break;   case "xmlist":stringBuilder.append("xmlist");break;   case "wzlist":stringBuilder.append("wzlist");break;   case "collectlist":stringBuilder.append("collectlist");break;   default:break;      }      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.indexOf("sum") != -1){   //请求全站动态成功   String finalResult = result;   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "dtlist":     ZSONObject zsonobject_dt = ZSONObject.stringToZSON(finalResult);     int sum_dt = Integer.parseInt(zsonobject_dt.getString("sum"));     DataCenterControl.userdt_listcontainer_list.clear();     for(int i = 0;i < sum_dt;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_dt.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.userdt_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.userDtListContainerProvider != null){  DataCenterControl.userDtListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户动态下载成功！", slice.getContext());     break; case "xmlist":     ZSONObject zsonobject_xm = ZSONObject.stringToZSON(finalResult);     int sum_xm = Integer.parseInt(zsonobject_xm.getString("sum"));     DataCenterControl.userxm_listcontainer_list.clear();     for(int i = 0;i < sum_xm;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_xm.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.userxm_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.userXmListContainerProvider != null){  DataCenterControl.userXmListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户项目下载成功！", slice.getContext());     break; case "wzlist":     ZSONObject zsonobject_wz = ZSONObject.stringToZSON(finalResult);     int sum_wz = Integer.parseInt(zsonobject_wz.getString("sum"));     DataCenterControl.userwz_listcontainer_list.clear();     for(int i = 0;i < sum_wz;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_wz.getString(String.valueOf(i)));  int detail_len = t.getString("DETAIL").length();  DataCenterControl.userwz_listcontainer_list.add(   new LCArryListContentItem(t.getString("CONTENT_ID")    ,t.getString("TYPE")    ,t.getString("DATE")    ,t.getString("READVALUE")    ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n")    ,t.getString("USER_ID")    ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1]   )  );     }     if(DataCenterControl.userWzListContainerProvider != null){  DataCenterControl.userWzListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户文章下载成功！", slice.getContext());     break; case "collectlist":     ZSONObject zsonobject_collect = ZSONObject.stringToZSON(finalResult);     int sum_collect = Integer.parseInt(zsonobject_collect.getString("sum"));     DataCenterControl.usercollect_listcontainer_list.clear();     for(int i = 0;i < sum_collect;i++){  ZSONObject t = ZSONObject.stringToZSON(zsonobject_collect.getString(String.valueOf(i)));  String field = t.getString("TYPE");  int detail_len = t.getString("DETAIL").length();  if(field.equals("动态") || field.equals("文章")){      DataCenterControl.usercollect_listcontainer_list.add(new LCArryListContentItem(t.getString("CONTENT_ID") ,t.getString("TYPE") ,t.getString("DATE") ,t.getString("READVALUE") ,t.getString("DETAIL").substring(12,detail_len - 1 - 1).replace("\\n","\n") ,t.getString("USER_ID") ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1])      );  }  if(field.equals("项目")){      DataCenterControl.usercollect_listcontainer_list.add(new LCArryListContentItem(t.getString("CONTENT_ID") ,t.getString("TYPE") ,t.getString("DATE") ,t.getString("READVALUE") ,t.getString("DETAIL") ,t.getString("USER_ID") ,DataCenterControl.fields[Integer.parseInt(t.getString("FIELD_ID")) - 1])      );  }     }     if(DataCenterControl.userCollectListContainerProvider != null){  DataCenterControl.userCollectListContainerProvider.notifyDataChanged();     }     MyTools.toastShow("用户收藏下载成功！", slice.getContext());     break; default:     MyTools.toastShow("用户未知下载成功！", slice.getContext());     break;    }}   });      }      else if(result.equals("NULL")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch(type){ case "dtlist":     DataCenterControl.userdt_listcontainer_list.clear();     if(DataCenterControl.userDtListContainerProvider != null){  DataCenterControl.userDtListContainerProvider.notifyDataChanged();     }     break; case "xmlist":     DataCenterControl.userxm_listcontainer_list.clear();     if(DataCenterControl.userXmListContainerProvider != null){  DataCenterControl.userXmListContainerProvider.notifyDataChanged();     }     break; case "wzlist":     DataCenterControl.userwz_listcontainer_list.clear();     if(DataCenterControl.userWzListContainerProvider != null){  DataCenterControl.userWzListContainerProvider.notifyDataChanged();     }     break; case "collectlist":     DataCenterControl.usercollect_listcontainer_list.clear();     if(DataCenterControl.userCollectListContainerProvider != null){  DataCenterControl.userCollectListContainerProvider.notifyDataChanged();     }     break;    }    MyTools.toastShow("用户内容为空！", slice.getContext());}   });      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    switch (type) { case "dtlist":     MyTools.toastShow("用户动态下载失败！", slice.getContext());     break; case "xmlist":     MyTools.toastShow("用户项目下载失败！", slice.getContext());     break; case "wzlist":     MyTools.toastShow("用户文章下载失败！", slice.getContext());     break; case "collectlist":     MyTools.toastShow("用户收藏下载失败！", slice.getContext());     break; default:     MyTools.toastShow("用户未知下载失败！", slice.getContext());     break;    }}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http请求用户内容列表与收藏列表数据区域*>*/    /*<http删除用户内容数据区域*/    public static void UpDataDeleteUserContentInfo(AbilitySlice slice,String type, String contentid, ArrayList<LCArryListContentItem> list, LCProviderForContent lcProviderForContent, int list_i){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "deleteusercontent/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&contentid=");      stringBuilder.append(contentid);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.equals("OK")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    list.remove(list_i);    lcProviderForContent.notifyDataChanged();    MyTools.toastShow("删除成功！", slice.getContext());}   });      }      else if(result.equals("NO")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("删除失败！刷可刷新加载！", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http删除用户内容数据区域*>*/    /*<http发送点击阅读指令区域*/    public static void UpDataWorldListReadInfo(AbilitySlice slice,String content_id,String user_id,Button detail_authorbut,Button detail_topddl_agreebut,Button detail_topddl_collectbut){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "read/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&content_id=");      stringBuilder.append(content_id);      stringBuilder.append("&user_id=");      stringBuilder.append(user_id);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      String[] tosettext = {"","",""};      if(result.startsWith("ok:")){   result = result.substring(3);   if(result.charAt(0) == '0'){tosettext[0] = "关注";   }   else{tosettext[0] = "已关注";   }   if(result.charAt(1) == '0'){tosettext[1] = "点赞";   }   else{tosettext[1] = "已点赞";   }   if(result.charAt(2) == '0'){tosettext[2] = "收藏";   }   else{tosettext[2] = "已收藏";   }   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    detail_authorbut.setText(tosettext[0]);    detail_topddl_agreebut.setText(tosettext[1]);    detail_topddl_collectbut.setText(tosettext[2]);}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http发送点击阅读指令区域*>*/    /*<http请求内容评论数据区域*/    public static void DownDataContentDiscussListInfo(AbilitySlice slice, String contentid){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "pulldiscuss/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("contentid=");      stringBuilder.append(contentid);      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.indexOf("sum") != -1){   String finalResult = result;   ZSONObject zsonobject_dt = ZSONObject.stringToZSON(finalResult);   int sum_dt = Integer.parseInt(zsonobject_dt.getString("sum"));   DataCenterControl.discuss_listcontainer_list.clear();   for(int i = 0;i < sum_dt;i++){ZSONObject t = ZSONObject.stringToZSON(zsonobject_dt.getString(String.valueOf(i)));DataCenterControl.discuss_listcontainer_list.add(new LCArryListNormalItem(t.getString("detail")));   }   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    if(DataCenterControl.discussListContainerProvider != null){ DataCenterControl.discussListContainerProvider.notifyDataChanged();    }    MyTools.toastShow("内容评论下载成功！", slice.getContext());}   });      }      else if(result.equals("NULL")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    DataCenterControl.discuss_listcontainer_list.clear();    if(DataCenterControl.discussListContainerProvider != null){ DataCenterControl.discussListContainerProvider.notifyDataChanged();    }    MyTools.toastShow("评论为空！", slice.getContext());}   });      }      else{   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("该内容评论下载失败！", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http请求内容评论数据区域*>*/    /*<http发布评论数据区域*/    public static void UpDataContentDiscussInfo(AbilitySlice slice,String contentid,String detail,TextField discuss_writetfd){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = DataCenterControl.serverIpWithPort + "pushdiscuss/?";     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&contentid=");      stringBuilder.append(contentid);      stringBuilder.append("&detail=");      stringBuilder.append(detail);      stringBuilder.append("&time=");      SimpleDateFormat formatter= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");      Date date = new Date(System.currentTimeMillis());      stringBuilder.append(formatter.format(date));      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      if(result.equals("OK")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    discuss_writetfd.clearFocus();    discuss_writetfd.setText("");    MyTools.toastShow("评论成功！", slice.getContext());}   });      }      else if(result.equals("NO")){   slice.getUITaskDispatcher().asyncDispatch(new Runnable() {@Overridepublic void run() {    MyTools.toastShow("评论失败！！", slice.getContext());}   });      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http发布评论数据区域*>*/    /*<http发送点赞或收藏指令区域*/    public static void UpDataAgreeAndCollectInfo(AbilitySlice slice,String content_id,String operation,Button button){ NetManager main_toplistnetmanger = NetManager.getInstance(slice.getContext()); if (!main_toplistnetmanger.hasDefaultNet()) {return;} ThreadPoolUtil.submit(() -> {     NetHandle thenetHandle = main_toplistnetmanger.getDefaultNet();     NetStatusCallback netStatusCallback = new NetStatusCallback() {};     HttpURLConnection httpURLConnection = null;     String urlString = "";     if(operation.equals("点赞")){  urlString = DataCenterControl.serverIpWithPort + "agree/?";     }     if(operation.equals("收藏")){  urlString = DataCenterControl.serverIpWithPort + "collect/?";     }     if(operation.equals("取消点赞")){  urlString = DataCenterControl.serverIpWithPort + "unagree/?";     }     if(operation.equals("取消收藏")){  urlString = DataCenterControl.serverIpWithPort + "uncollect/?";     }     try {  URL url = new URL(urlString);  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();  URLConnection urlConnection = thenetHandle.openConnection(url, java.net.Proxy.NO_PROXY);  if (urlConnection instanceof HttpURLConnection) {      httpURLConnection = (HttpURLConnection) urlConnection;      httpURLConnection.setRequestMethod("POST");      httpURLConnection.setDoOutput(true);      StringBuilder stringBuilder = new StringBuilder();      stringBuilder.append("username=");      stringBuilder.append(DataCenterControl.userName);      stringBuilder.append("&contentid=");      stringBuilder.append(content_id);      stringBuilder.append("&time=");      SimpleDateFormat formatter= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");      Date date = new Date(System.currentTimeMillis());      stringBuilder.append(formatter.format(date));      byte[] b = stringBuilder.toString().getBytes();      httpURLConnection.getOutputStream().write(b);      try {   httpURLConnection.connect();      } catch (IOException e) {}      outputStream.flush();      InputStream inputStream = null;      try {   inputStream = urlConnection.getInputStream();   byte[] cache = new byte[2 * 1024];   int len = inputStream.read(cache);   while (len != -1) {outputStream.write(cache, 0, len);len = inputStream.read(cache);   }      } catch (IOException e) {}      String result = "";      result = outputStream.toString();      String[] tosettext = {"","",""};      if(result.equals("OK")){   if(operation.equals("点赞")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { button.setText("已点赞");    }});   }   if(operation.equals("收藏")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { button.setText("已收藏");    }});   }   if(operation.equals("取消点赞")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { button.setText("点赞");    }});   }   if(operation.equals("取消收藏")){slice.getUITaskDispatcher().asyncDispatch(new Runnable() {    @Override    public void run() { button.setText("收藏");    }});   }      }  }     } catch (IOException e) {}     finally {  if (httpURLConnection != null) {      httpURLConnection.disconnect();  }     } });    }    /http发送点赞或收藏指令区域*>*/    public static void toastShow(String info, Context context){ ToastDialog toastDialog = new ToastDialog(context); toastDialog.setText(info); toastDialog.setTransparent(true); toastDialog.setDuration(50); toastDialog.setAlignment(LayoutAlignment.CENTER); toastDialog.show();    }    public static void commonDialogRemoveShow(String title, String content, Component component,int itemid, AbilitySlice slice,String operation){ CommonDialog commonDialog = new CommonDialog(slice.getContext()); commonDialog.setTitleText(title); commonDialog.setContentText(content); commonDialog.setSize(630,400); commonDialog.setButton(1, "确认", new IDialog.ClickedListener() {     @Override     public void onClick(IDialog iDialog, int i) {  if(operation.equals("destory")){      MyTools.UpDataDestoryInfo(slice,DataCenterControl.userName);  }  if(operation.equals("follow")){      Text text = (Text) ((DirectionalLayout)component).getComponentAt(0);      String s = text.getText();      if(s.substring(0,s.length() - 4).equals(DataCenterControl.userName)){   MyTools.toastShow("无法关注自己！",slice.getContext());   commonDialog.destroy();   return;      }      MyTools.UpDataFollowInfo(slice,component,s.substring(0,s.length() - 4),itemid,"关注");  }  if(operation.equals("unfollow")){      Text text = (Text) ((DirectionalLayout)component).getComponentAt(0);      String s = text.getText();      MyTools.UpDataFollowInfo(slice,component,s.substring(0,s.length() - 5),itemid,"取消关注");  }  commonDialog.destroy();     } }); commonDialog.setButton(2, "取消", new IDialog.ClickedListener() {     @Override     public void onClick(IDialog iDialog, int i) {  commonDialog.destroy();     } }); commonDialog.show();    }    public static void selectImage(AbilitySlice abilitySlice, int requestCode){ Intent intent = new Intent(); Operation operation = new Intent.OperationBuilder()  .withAction("android.intent.action.GET_CONTENT")  .withFlags(Intent.FLAG_NOT_OHOS_COMPONENT)  .build(); intent.setOperation(operation); intent.setType("image/*"); abilitySlice.startAbilityForResult(intent,requestCode);    }}