1.前端配置

1.config.json

1.deviceConfig

"default": {      "process": "com.huawei.hiworld.example",      "supportBackup": false,      "network": { "cleartextTraffic": true      }    }

2.  module

"reqPermissions": [      { "name": "ohos.permission.GET_NETWORK_INFO"      },      { "name": "ohos.permission.SET_NETWORK_INFO"      },      { "name": "ohos.permission.INTERNET"      }    ],

2.页面

1.hml

 点击按钮      请求响应  {{winfo}}

 2.js

需要安装：qs库、fetch

npm install qsnpm install querystring

js内容

import fetch from '@system.fetch';import qs from 'querystring';export default{    data:{ winfo:"",    },    onClick(){ fetch.fetch({     //后端的接口，AppReq1为views中的类名 url:'http://“自己的请求端口”/“创建app的名称”/AppReq1/' ,     data:qs.stringify({'id':'1'}),     responseType:"json",     method:"POST",     success:(resp)=>{  this.winfo = resp.data;  console.log("返回数据："+this.winfo)     },     fail:(resp)=>{  this.winfo = resp.data;  console.log("获取数据失败："+this.winfo)     } })    }}