微信小程序wx.request接口
wx.request是小程序客户端与服务器端交互的接口
HTTPS 请求
一个微信小程序，只能同时(同时不能大于5个)有5个网络请求
wx.request(OBJECT)
发起网络请求
urldataheadermethoddataType
wx.request({url: 'test.php', //仅为示例，并非真实的接口地址data: {x: '' ,y: ''},header: {'content-type': 'application/json' // 默认值},success: function(res) {console.log(res.data)}})
四种网络请求:
(wx.request)
(wx.uploadFile)
(wx.downloadFile)
(wx.connectSocket)
var request = {url: '',data: {},method: '',success: function (res) {},fail: function () {},complete: function () {}}
wx.openSetting 来跳转到设置授权界面
/* index.js */// 若有用户信息存在则继续Page({onLoad () {wx.getStorage({key: 'userinfo',success: (res) => {this.setUserinfo(res)},fail: (res) => {api.login().then((res) => {this.setUserinfo(res)}).catch(e => {if (e.errMsg && e.errMsg === 'getUserInfo:fail auth deny') {this.setData({isauth: false})}})}})},toSetting() {wx.openSetting({success: (res) => {this.setData({isauth: res.authSetting['scope.userInfo']})if (res.authSetting['scope.userInfo']) {api.login().then((res) => {this.setUserinfo(res)})}}})}})// setUserinfo 就是对用户信息做一下处理 不具体展开了/* index.wxml */<view class="unauth" wx:if="{{!isauth}}"><image class="unauth-img" src="../../images/auth.png"></image> <text class="unauth-text">检查到您没打开授权</text><button class="color-button unauth-button" bindtap="toSetting">去设置</button></view><view class="container" wx:else>...</view>
function queryRequest(data){ wx.request({url:"/api/",data:data,header:{// "Content-Type":"application/json"},success:function(res){console.log(res.data)},fail:function(err){console.log(err)}})}
服务器设置:
上传文件
// Content-type为multipart/form-datafunction uploadFile(file,data) {wx.uploadFile({url: '/upload',filePath: file,name: 'file',formData:data,success:function(res){console.log(res.data)},fail:function(err){console.log(err)}})}
下载文件
function downloadFile(url,typ,success){wx.downloadFile({url:url,type:type,success:function(res){if(success){success(res.tempFilePath)}},fail:function(err){console.log(err)}})}
function svaeFile(tempFile,success){wx.saveFile({tempFilePath:tempFile,success:function(res){var svaedFile=res.savedFilePathif(success){success(svaeFile)}}})}
