小程序：post请求

按照文档,肯定是这么写.那就入坑了.

1. 'Content-Type': 'application/json'用在get请求中没问题.

POST请求就不好使了.需要改成: "Content-Type": "application/x-www-form-urlencoded"

2. 加上method: "POST"

3.data: { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" }写成json格式这样也是请求不到数据的.需要转格式.

下面直接贴代码:

3.1

<span style="font-size:24px;">//index.js  
//获取应用实例  
var app = getApp()  
Page( {  
  data: {  
    toastHidden: true,  
    city_name: '',  
  },  
  onLoad: function() {  
    that = this;  
    wx.request( {  
      url: "http://op.juhe.cn/onebox/weather/query",  
      header: {  
        "Content-Type": "application/x-www-form-urlencoded"  
      },  
      method: "POST",  
     //data: { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" },  
      data: Util.json2Form( { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" }),  
      complete: function( res ) {  
        that.setData( {  
          toastHidden: false,  
          toastText: res.data.reason,  
          city_name: res.data.result.data.realtime.city_name,  
          date: res.data.result.data.realtime.date,  
          info: res.data.result.data.realtime.weather.info,  
        });  
        if( res == null    res.data == null ) {  
          console.error( '网络请求失败' );  
          return;  
        }  
      }  
    })  
  },  
  onToastChanged: function() {  
    that.setData( { toastHidden: true });  
  }  
})  
var that;  
var Util = require( '../../utils/util.js' );</span>