vue移动端微信授权登录插件封装
1.新建wechatAuth.js文件const queryString = require('query-string')//应用授权作用域,snsapi_base (不弹出授权页面,直接跳转,只能获取用户openid),snsapi_userinfo (弹出授权页面,可通过openid拿到昵称、性别、所在地。并且,即使在未关注的情况下,只要用户授权,也能获取其信息)const SC...
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新建wechatAuth.js
文件
const qs = require('qs')
//应用授权作用域,snsapi_base (不弹出授权页面,直接跳转,只能获取用户openid),snsapi_userinfo (弹出授权页面,可通过openid拿到昵称、性别、所在地。并且,即使在未关注的情况下,只要用户授权,也能获取其信息)
const SCOPES = ['snsapi_base', 'snsapi_userinfo']
class VueWechatAuthPlugin {
constructor () {
this.appid = null
this.redirect_uri = null
this.scope = SCOPES[1]
this._code = null
this._redirect_uri = null
}
install (Vue, options) {
let wechatAuth = this
this.setAppId(options.appid)
Vue.mixin({
created: function () {
this.$wechatAuth = wechatAuth
},
})
}
static makeState () {
return Math.random().toString(36).substring(2, 15) +
Math.random().toString(36).substring(2, 15)
}
setAppId (appid) {
this.appid = appid
}
set redirect_uri (redirect_uri) {
this._redirect_uri = encodeURIComponent(redirect_uri)
}
get redirect_uri () {
return this._redirect_uri
}
get state () {
return localStorage.getItem('wechat_auth:state')
}
set state (state) {
localStorage.setItem('wechat_auth:state', state)
}
get authUrl () {
if (this.appid === null) {
throw 'appid must not be null'
}
if (this.redirect_uri === null) {
throw 'redirect uri must not be null'
}
this.state = VueWechatAuthPlugin.makeState()
return `https://open.weixin.qq.com/connect/oauth2/authorize?appid=${this.appid}&redirect_uri=${this.redirect_uri}&response_type=code&scope=${this.scope}&state=${this.state}#wechat_redirect`
}
returnFromWechat (redirect_uri) {
let parsedUrl = qs.parse(redirect_uri.split('?')[1])
if (process.env.NODE_ENV === 'development') {
// console.log('parsedUrl: ', parsedUrl)
this.state = null
this._code = parsedUrl.code
} else {
if (this.state === null) {
throw 'You did\'t set state'
}
if (parsedUrl.state === this.state) {
this.state = null
this._code = parsedUrl.code
} else {
this.state = null
throw `Wrong state: ${parsedUrl.state}`
}
}
}
get code () {
if (this._code === null) {
throw 'Not get the code from wechat server!'
}
// console.log(this)
// console.log('this._code: ' + this._code)
let code = this._code
this._code = null
// console.log('code: ' + code)
return code
}
}
const vueWechatAuthPlugin = new VueWechatAuthPlugin()
if (typeof window !== 'undefined' && window.Vue) {
window.Vue.use(VueWechatAuthPlugin)
}
export default vueWechatAuthPlugin
main.js中导入
import wechatAuth from './plugins/wechatAuth'//微信登录插件
const qs= require('qs');
Vue.use(wechatAuth, {appid: XXXXXXXXX});
路由钩子中可以进行相关操作
router.beforeEach((to, from, next) => {
if (store.state.loginStatus == 0) {
//微信未授权登录跳转到授权登录页面
let url = window.location.href;
//解决重复登录url添加重复的code与state问题
let parseUrl = qs.parse(url.split('?')[1]);
let loginUrl;
if (parseUrl.code && parseUrl.state) {
delete parseUrl.code;
delete parseUrl.state;
loginUrl = `${url.split('?')[0]}?${qs.stringify(parseUrl)}`;
} else {
loginUrl = url;
}
wechatAuth.redirect_uri = loginUrl;
store.dispatch('setLoginStatus', 1);
window.location.href = wechatAuth.authUrl
} else if (store.state.loginStatus == 1) {
try {
wechatAuth.returnFromWechat(to.fullPath);
} catch (err) {
store.dispatch('setLoginStatus', 0)
next()
}
store.dispatch('loginWechatAuth', wechatAuth.code).then((res) => {
if (res.status == 1) {
store.dispatch('setLoginStatus', 2)
} else {
store.dispatch('setLoginStatus', 0)
}
next()
}).catch((err) => {
next()
})
}else {
next()
}
});
GitHub地址:vue-wechat-login
- 2020.11.07更新:代码进行
vue 3.0
typescript
重构。 - 2021.03.15更新:新增
vite
版本。
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