微信小程式開發之網路請求(POST請求)
阿新 • • 發佈:2019-01-08
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="https://img-blog.csdn.net/20161017170933243?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" align="middle" alt="" />
按照文件,肯定是這麼寫.那就入坑了.
1. 'Content-Type': 'application/json'用在get請求中沒問題.
POST請求就不好使了.需要改成: "Content-Type": "application/x-www-form-urlencoded"
2. 加上method: "POST"
3.data: { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" }寫成json格式這樣也是請求不到資料的.需要轉格式.
下面直接貼程式碼:
3.1
<span style="font-size:24px;">//index.js //獲取應用例項 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( '網路請求失敗' ); return; } } }) }, onToastChanged: function() { that.setData( { toastHidden: true }); } }) var that; var Util = require( '../../utils/util.js' );</span>
3.2
3.3<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>
<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>
http://blog.csdn.net/qq_31383345