微信小程序開發中網絡請求必不可少.GET.POST請求是最常用的.GET請求
POST請求的時候有好幾個坑.我已經爲大家填好了.
<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="" />
按照文檔,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"
3.data: { cityname: "上海", key: "1430ec127e097e1113259c5e1be1ba70" }寫成json格式這樣也是請求不到數據的.需要轉格式.
下面直接貼代碼:
3.1
<span style="font-size:24px;">//index.js
//獲取應用實例
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( '網絡請求失敗' );
return;
}
}
})
},
onToastChanged: function() {
that.setData( { toastHidden: true });
}
})
var that;
var Util = require( '../../utils/util.js' );</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>
http://blog.csdn.net/qq_31383345