vue项目中如何实现一个微信登录功能？针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
1、下载组件 wxlogin
npm install vue-wxlogin --save
2、引入组件，给组件传参
3、重定向的url应该是微信登录官网中的微信授权作用域
4、如果url里面有端口号，微信授权作用里面也要有
5、重定向的url：需要在/tupian/20230522/pp7、如果报错说不能从组件跳到页面，那就找到wxlogin组件里面的iframe标签，加上这个属性：sandbox=“allow-scripts allow-top-navigation allow-same-origin”
报错内容：
qrconnect?scope=snsapi_login&redirect_uri=http%3a%2f%2f%2f&state=&login_type=jssdk&self_redirect=false&style=black&href=:84 Unsafe JavaScript attempt to initiate navigation for frame with origin 'http://localhost:9020' from frame with URL 'https://open.weixin.qq.com/connect/qrconnect?app&scope=snsapi_login&redirect_uri=http%3a%2f%2f&state=&login_type=jssdk&self_redirect=false&style=black&href='. The frame attempting navigation is targeting its top-level window, but is neither same-origin with its target nor has it received a user gesture. See https://www.chromestatus.com/features/5851021045661696.```
补充知识：vue移动端微信授权登录插件封装
1.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.$wechatAuth = wechatAuth
},
})
}
static makeState () {
return Math.random().toString(36).substring(2, 15) +
Math.random().toString(36).substring(2, 15)
}
setAppId (appid) {
this.appid = appid
}
set redirect_uri (redirect_uri) {
this._redirect_uri = encodeURIComponent(redirect_uri)
}
get redirect_uri () {
return this._redirect_uri
}
get state () {
return localStorage.getItem('wechat_auth:state')
}
set state (state) {
localStorage.setItem('wechat_auth:state', state)
}
get authUrl () {
if (this.appid === null) {
throw 'appid must not be null'
}
if (this.redirect_uri === null) {
throw 'redirect uri must not be null'
}
this.state = VueWechatAuthPlugin.makeState()
return `https://open.weixin.qq.com/connect/oauth3/authorize?appid=${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 
