微信小程序 POST请求的实例详解

在微信小程序里post请求和get情求,写法差不多,但是还是有一点点不同的,下面利用post请求做一个查询天气的微信小程序demo。

页面代码:

<view> {{title}} </view>

<span style="font-size:24px;"><!--index.wxml-->
<view class="container">
  <view style="color:{{red}}">{{city_name}}</view>
  <view>{{date}}</view>
  <view>{{info}}</view>
</view></span>

js代码:

var app = getApp();
var that;
var Util = require( '../../utils/util.js' );
Page( {
 data: {
  city_name: '',
  title:'',
  red:'green'
 },
 onLoad: function(options) {
   this.setData({
     title:options.title
   })
  that = this;
  wx.request( {
   url: "http://op.juhe.cn/onebox/weather/query",
   header: {
   //请求头和ajax写法一样
    "Content-Type": "application/x-www-form-urlencoded"
   },
   method: "POST",
   data: Util.json2Form( { cityname: "北京", key: "1430ec127e097e1113259c5e1be1ba70" }),
   complete: function( res ) {

     wx.showToast({
      title:'成功',
      icon:'success',
      duration:2000
     })

    that.setData( {
      red:'red',
     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;
    }

     setTimeout(function(){
       wx.hideToast()
     },2000)
   }
  })
 }

})

依赖util.js代码:

function json2Form(json) {
  var str = [];
  for(var p in json){
    str.push(encodeURIComponent(p) + "=" + encodeURIComponent(json[p]));
  }
  return str.join("&");
}

module.exports = {
 formatTime: formatTime,
 json2Form:json2Form,
}

展示图:

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02-07 00:00