Mini program: post request

According to the document, it must be written like this. Then you are in trouble.

1. 'Content-Type': 'application/json' is used in There is no problem with the get request.

The POST request does not work. It needs to be changed to: "Content-Type": "application/x-www-form-urlencoded"

2. Add method: "POST"

3.data: { cityname: "Shanghai", key: "1430ec127e097e1113259c5e1be1ba70" } Even if it is written in json format, the data cannot be requested. The format needs to be converted.

Post the code directly below:

3.1

<span style="font-size:24px;">//index.js  
//获取应用实例  
var app = getApp()  
Page( {  
  data: {  
    toastHidden: true,  
    city_name: &#39;&#39;,  
  },  
  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( &#39;网络请求失败&#39; );  
          return;  
        }  
      }  
    })  
  },  
  onToastChanged: function() {  
    that.setData( { toastHidden: true });  
  }  
})  
var that;  
var Util = require( &#39;../../utils/util.js&#39; );</span>

3.2

<span style="font-size:24px;"><!--index.wxml-->  
<view class="container">  
   <toast hidden="{{toastHidden}}" bindchange="onToastChanged">  
        {{toastText}}  
    </toast>  
    <view>{{city_name}}</view>  
    <view>{{date}}</view>  
    <view>{{info}}</view>  
</view></span>

3.3

<span style="font-size:24px;">//util.js  
function json2Form(json) {  
    var str = [];  
    for(var p in json){  
        str.push(encodeURIComponent(p) + "=" + encodeURIComponent(json[p]));  
    }  
    return str.join("&");  
}  
module.exports = {  
  json2Form:json2Form,  
}</span>

Comment section:

I tried a few more interfaces, and some of them can submit data. It should be a bug. I can only wait for the official version.

I just used other post requests and it didn’t work either. But This does get the data. You can try it. The interface address is: http://op.juhe.cn/onebox/weather/query. There are two parameters, cityname, key.cityname. Just write the city name. I applied for the key. =1430ec127e097e1113259c5e1be1ba70 I will study it tomorrow and see why the others are not working.

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