一、前言
由于微信官方修改了 getUserInfo 接口,所以现在无法实现一进入微信小程序就弹出授权窗口,只能通过 button 去触发。官方连接:https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/login.html
微信小程序登录流程时序
说明:
- 小程序调用wx.login() 获取 临时登录凭证code ,并回传到开发者服务器
- 开发者服务器以code换取 用户唯一标识openid 和 会话密钥session_key。
- 临时登录凭证code只能使用一次
二、实现思路
自己写一个微信授权登录页面让用户实现点击的功能,也就是实现了通过 button 组件去触发 getUserInfo接口。在用户进入微信小程序的时候,判断用户是否授权了,如果没有授权的话就显示授权页面,让用户去执行授权的操作。如果已经授权了,则直接跳过这个页面,进入首页。
<button class='dialog-btn' open-type="getUserInfo" bindgetuserinfo="getUserInfo">获取用户信息</button>
获取手机号也类似:调用getPhoneNumber方法
<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber">获取手机号</button>
三、直接看效果图
四、看源码
1, index.wxml
<!--pages/login/index.wxml--> <button class='phone-text' open-type="getUserInfo" lang="zh_CN" bindgetuserinfo="onGotUserInfo">请登录</button> <!--登录弹窗--> <view class="modal-mask" catchtouchmove="preventTouchMove" wx:if="{{showModal}}"></view> <view class="modal-dialog" wx:if="{{showModal}}"> <view class="modal-content"> <view><image src='../images/show.png' class='show'></image></view> <view>绑定手机号</view> <view>请先绑定手机号在进行此操作</view> <button open-type='getPhoneNumber' bindgetphonenumber="getPhoneNumber"> <image src='../images/showWx.png' class='iconWx'></image>微信用户一键绑定 </button> </view> </view>
2, index.js
Page({ /** * 页面的初始数据 */ data: { openid: "", loginstate: "0", openid: "", userEntity: null, terminal: "", osVersion: "", phoneNumber: "", showModal: false,//定义登录弹窗 }, //在页面加载的时候,判断缓存中是否有内容,如果有,存入到对应的字段里 onLoad: function () { var that = this; wx.getStorage({ key: 'openid', success: function (res) { that.setData({ openid: res.data }); }, fail: function (res) { that.getcode(); } }); wx.getStorage({ key: 'userEntity', success: function (res) { that.setData({ userEntity: res.data }); }, fail: function (res) { console.log("fail1"); } }); wx.getStorage({ key: 'loginstate', success: function (res) { that.setData({ loginstate: res.data }); }, fail: function (res) { console.log("fail2"); } }); }, onGotUserInfo: function (e) { var that = this; if (e.detail.errMsg == "getUserInfo:ok") { wx.setStorage({ key: "userinfo", data: e.detail.userInfo }) this.setData({ userInfo: e.detail.userInfo }); that.showDialogBtn();//调用一键获取手机号弹窗(自己写的) } }, // 显示一键获取手机号弹窗 showDialogBtn: function () { this.setData({ showModal: true//修改弹窗状态为true,即显示 }) }, // 隐藏一键获取手机号弹窗 hideModal: function () { this.setData({ showModal: false//修改弹窗状态为false,即隐藏 }); }, onshow: function (openid, userInfo, phoneNumber) { var that = this; wx.getSystemInfo({ success: function (res) { that.setData({ terminal: res.model }); that.setData({ osVersion: res.system }); } }) wx.request({ url: '登录接口', method: 'POST', header: { 'content-type': 'application/json' // 默认值 }, data: { username: phoneNumber, parentuser: 'xudeihai', wximg: userInfo.avatarUrl, nickname: userInfo.nickName, identity: "", terminal: that.data.terminal, osVersion: that.data.system, logintype: "10",//微信登录 openid: that.data.openid, }, success(res) { if (res.data.r == "T") { that.setData({ userEntity: res.data.d }); wx.setStorage({ key: "userEntity", data: res.data.d }) that.setData({ loginstate: "1" }); wx.setStorage({ key: "loginstate", data: "1" }) wx.setStorage({ key: 'userinfo', data: "1" }) } else { return; } }, fail(res) { console.log(res); } }) }, //绑定手机 getPhoneNumber: function (e) { var that = this; that.hideModal(); wx.checkSession({ success: function () { wx.login({ success: res => { wx.request({ url: '自己的登录接口', //仅为示例,并非真实的接口地址 data: { account: '1514382701', jscode: res.code }, method: "POST", header: { 'content-type': 'application/json' // 默认值 }, success(res) { if (res.data.r == "T") { wx.setStorage({ key: "openid", data: res.data.openid }) wx.setStorage({ key: "sessionkey", data: res.data.sessionkey }) wx.setStorageSync("sessionkey", res.data.sessionkey); wx.request({ url: '自己的解密接口',//自己的解密地址 data: { encryptedData: e.detail.encryptedData, iv: e.detail.iv, code: wx.getStorageSync("sessionkey") }, method: "post", header: { 'content-type': 'application/json' }, success: function (res) { if (res.data.r == "T") { that.onshow(that.data.openid, that.data.userInfo, res.data.d.phoneNumber);//调用onshow方法,并传递三个参数 console.log("登录成功") console.log(res.data.d.phoneNumber)//成功后打印微信手机号 } else { console.log(res); } } }) } } }) } }) }, fail: function () { wx.login({ success: res => { wx.request({ url: '自己的登录接口', //仅为示例,并非真实的接口地址 data: { account: '1514382701', jscode: res.code }, method: "POST", header: { 'content-type': 'application/json' // 默认值 }, success(res) { if (res.data.r == "T") { wx.setStorage({ key: "openid", data: res.data.openid }) wx.setStorage({ key: "sessionkey", data: res.data.sessionkey }) wx.request({ url: '自己的解密接口',//自己的解密地址 data: { encryptedData: e.detail.encryptedData, iv: e.detail.iv, code: res.data.sessionkey }, method: "post", header: { 'content-type': 'application/json' }, success: function (res) { that.onshow(that.data.openid, that.data.userInfo, res.data.d.phoneNumber);//调用onshow方法,并传递三个参数 } }) } } }) } }) } }) }, })
3, index.wxss
/* ---弹窗css--- */ .modal-mask { width: 100%; height: 100%; position: fixed; top: 0; left: 0; background: #000; opacity: 0.5; overflow: hidden; color: #fff; } .modal-dialog { width: 72%; position: absolute; top: 30%; left: 14%; background: #fff; border-radius: 12rpx; } .modal-content{ text-align: center; } .modal-content .show{ width: 450rpx; height: 323rpx; display: block; margin: 0 auto; margin-top: -118rpx; z-index: 10000; } .iconWx{ width:52rpx; height: 41rpx; padding-right: 20rpx; } .iconPhone{ width:56rpx; height: 56rpx; padding-right: 15rpx; } .modal-content view:nth-of-type(2){ font-size: 38rpx; color: #333333; line-height: 1; } .modal-content view:nth-of-type(3){ font-size: 26rpx; color: #9c9c9c; margin: 18rpx 0 29rpx; line-height: 1; } .modal-content button:nth-of-type(1){ width: 80%; height: 80rpx; border-radius: 60rpx; margin: 0 auto 80rpx; font-size: 30rpx; color: #fff; background: #31cc32; display: flex; flex-direction: row; align-items: center; justify-content: center; padding: 0; box-sizing: border-box; } .modal-content button:nth-of-type(1)::after{ border: none; } .modal-content .wxLogin{ font-size: 26rpx; color: #424242; display: flex; flex-direction: row; align-items: center; justify-content: center; margin: 38rpx 0 80rpx; } button::after{ border: none; }
注解:
1,点击登录按钮,弹出微信自带的是否允许授权弹出框,
2,如果点击的是允许,从缓存中读取用户信息,并把用户信息存储起来,
3,同时调用弹出获取手机号的弹窗(这个弹窗时自己写的),在wxml里用wx:if="{{showModal}}"判断获取手机号的隐藏状态,当为true的时候显示,
4,注意在两层view里写了两遍wx:if="{{showModal}}",为什么写两遍呢,因为第一层时弹出框的灰色蒙版背景,第二层是弹出框的内容,两层控制了整个弹窗框是否显示。
五、点击源码下载
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