背景
之前小程序代码混乱,所以新项目一开始就准备弄个微信小程序的 request 的封装
流程
先来说说整个流程:
1.appjs 里面已进入就去获取用户信息,如果没有登录则默认登录,这里不做错误处理
2.用户必须同意授权才能进行操作,如果不同意授权则会一直跳转到授权页面
3.在授权页面点击授权登录后,调用登录接口,成功后返回调起授权的页面,app.js
onLaunch 里面获取用户信息
appSelf = this; // 应用程序第一次进入,获取用户信息,不做任何错误处理 userInfo().then( (res)=>{ console.log(res);// 打印结果 if (!res.code) { appSelf.globalData.userInfo = res } }).catch( (errMsg)=>{ console.log(errMsg);// 错误提示信息 });
httpUtils.js
request 的封装
const request = function (path, method, data, header) { let user_id = ""; let token = ""; try { user_id = wx.getStorageSync(USER_ID_KEY); token = wx.getStorageSync(TOKEN_KEY); } catch (e) {} header = header || {}; let cookie = []; cookie.push("USERID=" + user_id); cookie.push("TOKEN=" + token); cookie.push("device=" + 1); cookie.push("app_name=" + 1); cookie.push("app_version=" + ENV_VERSION); cookie.push("channel=" + 1); header.cookie = cookie.join("; "); return new Promise((resolve, reject) => { wx.request({//后台请求 url: API_BASE_URL + path, header: header, method: method, data: data, success: function (res) { if (res.statusCode !== 200) { reject(res.data) } else { if (res.data.code === 20006) { login().then( (res)=>{ resolve(res) }).catch( (errMsg)=>{ reject(errMsg); }) } resolve(res.data) } }, fail: function (res) { reject("not data"); } }); }); }
login
const login = function () { try { wx.removeStorageSync(USER_ID_KEY) wx.removeStorageSync(TOKEN_KEY) } catch (e) {} return new Promise((resolve, reject) => { wx.login({ success: res => { let code = res.code; // 已经授权,可以直接调用 getUserInfo 获取头像昵称,不会弹框 wx.getUserInfo({ withCredentials: true, success: res => { let userInfo = res.userInfo; let name = userInfo.nickName; let avatar = userInfo.avatarUrl; let sex = userInfo.gender; let data = { code: code, encryptedData: res.encryptedData, iv: res.iv, name: name, avatar: avatar, sex: sex, from: FROM, }; request("/api/user/login/byWeChatApplet", "POST", data).then( (res)=>{ if (!res.code) { try { wx.setStorageSync(USER_ID_KEY, res.user_id); wx.setStorageSync(TOKEN_KEY, res.token) } catch (e) { reject(JSON.stringify(e)); } } resolve(res) }).catch( (errMsg)=>{ reject(errMsg) }); }, fail: function (res) { console.log(res); if (res.errMsg && res.errMsg.startsWith("getUserInfo:fail") && res.errMsg.search("unauthorized") != -1) { // 跳转授权页面 wx.navigateTo({ url: '/pages/auth/auth' }) return; } wx.getSetting({ success: (res) => { if (!res.authSetting["scope.userInfo"]) { // 跳转授权页面 wx.navigateTo({ url: '/pages/auth/auth' }) } } }); } }) } }) }); };
auth.js
授权页面 js
Page({ data: { }, onLoad: function () { self = this; }, auth: function (e) { console.log(app.globalData.userInfo); if (e.detail.userInfo) { login().then( (res)=>{ console.log(res);// 打印结果 if (res.code) { // 接口错误 return } // 跳转回上一个页面 wx.navigateBack() }).catch( (errMsg)=>{ console.log(errMsg);// 错误提示信息 }); } }, });
项目地址
https://github.com/lmxdawn/wx...
一个 vue + thinkphp5.1 搭建的后台管理:https://github.com/lmxdawn/vu...
演示: