在大家开发中，可能会使用Webview去加载网页，需要将应用开发中使用到必要的cookie信息同步到HarmonyOS的webview，也有可能从HarmonyOS的webview中获取cookie信息，如下写一个demo作为参考，基础的webview学习，大家参考如下链接 

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1、设置cookie

我们需要重写webAgent的接口，实现isNeedLoadUrl的方法中设置如下代码

ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();mCookieStore.setCookieEnable(true);mCookieStore.setCookie(url, "Domain="+"1111");mCookieStore.setCookie(url, "Path=/");mCookieStore.setCookie(url, "Value=00000");

2、读取cookie

我们需要重写webAgent的接口，实现onPageLoaded的方法中设置如下代码

ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();String cookiestr=mCookieStore.getCookie(url);HiLogUtils.PrintLog(cookiestr);

3、整体代码如下

XML 代码如下

Java 代码如下 

package com.harmony.alliance.mydemo.slice;import com.harmony.alliance.mydemo.ResourceTable;import ohos.aafwk.ability.AbilitySlice;import ohos.aafwk.content.Intent;import ohos.agp.components.webengine.CookieStore;import ohos.agp.components.webengine.ResourceRequest;import ohos.agp.components.webengine.WebAgent;import ohos.agp.components.webengine.WebView;import ohos.media.image.PixelMap;public class WebviewAbilitySlice extends AbilitySlice {    private WebView webView;    @Override    public void onStart(Intent intent) { super.onStart(intent); super.setUIContent(ResourceTable.Layout_ability_webview); webView = (WebView) findComponentById(ResourceTable.Id_webview); webView.getWebConfig().setJavaScriptPermit(true); webView.setWebAgent(new WebAgent() {     @Override     public void onLoadingPage(WebView webview, String url, PixelMap favicon) {  super.onLoadingPage(webview, url, favicon);  // 页面开始加载时自定义处理  ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();  mCookieStore.setCookieEnable(true);  mCookieStore.setCookie(url, "Domain="+"luck");  mCookieStore.setCookie(url, "Path=/");  mCookieStore.setCookie(url, "Value=00000");     }     @Override     public void onPageLoaded(WebView webView, String url) {  super.onPageLoaded(webView, url);  CookieStore cookieStore = CookieStore.getInstance();  String cookiestr=cookieStore.getCookie(url);  System.out.println("cookiestr=====>>"+cookiestr);     } }); autoLogin();    }    private void autoLogin() { Thread thread = new Thread(() -> {     try {      getUITaskDispatcher().asyncDispatch(() -> {   showLoginedPage();      });     } catch (Exception exception) {  exception.printStackTrace();     } }); thread.start();    }    private void showLoginedPage() { try {     String url = "https://www.baidu.com/";     webView.load(url); } catch (Exception e) {     e.printStackTrace(); }    }    @Override    public void onActive() { super.onActive();    }    @Override    public void onForeground(Intent intent) { super.onForeground(intent);    }}

效果如下

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