微信小程式 POST請求（網路請求）詳解及實例代碼

微信小程式POST請求

微信小程式開發中網路請求必不可少.GET.POST請求是最常用的.GET請求，POST請求的時候有好幾個坑.我已經為大家填好了.

<img src="/static/imghwm/default1.png"  data-src="http://img.blog.csdn.net/20161017170933243?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center"  class="lazy"   align="middle" alt="" />

   

按照文檔,肯定是這麼寫.那就入坑了.

1. 'Content-Type': 'application/json'用在get請求中沒用
1. POST請求就不好使了.需要改成: "Content-Type": "application/x-www-form-urlencoded"

2016.11.10更新:有同學在將content-type 修改為小寫後,post請求成功.

2. 加上method: "POST"

3.data: { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" }寫成json格式這樣要求也寫到資料

下面直接貼代碼:

 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>