promise封装微信小程序的request

1、在utils下创建一个 request.js文件，然后将方法导出

const app = getApp();
//使用promise封装request请求
const POST = (url, params) => {
  let promise = new Promise((resolve, reject) => {
    wx.request({
      url: url,
      data: params,
      header:‘application/x-www-form-urlencoded‘, // 默认值
      method: "POST",
      success: res => {
        console.log("返回结果：");
        console.log(res.data);
        app.netWorkData.result = res.data;
        resolve();
      },
      fali: res => {
        reject(res);
      }
    });
  });
  return promise;
};
module.exports = {
  POST: POST
};

2、app.js

App({
  netWorkData: {
    result: { code: -1, msg: ‘发起请求失败‘ }
  },
})

3、在需求请求数据的js文件中先引入request.js文件

const request = require(‘../../utils/request.js‘);

　调用，发送请求

  onLoad: function (options) {
    const that = this;    
    var url = apiUrl + ‘api/info/querydetail‘;
    var params={
      "id": options.id,             //  该条信息的id
        "uid": "",            //  当前用户id，可以不填写
        "lat": lat,           //  纬度 默认是杭州的维度
        "lng": long,
    }
    network.POST(url, params).then(() => {
      //请求成功的操作      
      var _data = app.netWorkData.result;
      that.setData({
        list: _data.data,
        id: _data.data.id
      });
  
    });
    
  },