Mic*_*'23 7 html javascript frontend vue.js vuejs2
我是 vue 新手，一直在尝试将 google 登录按钮包含到我的网页中。但是，在我的 Mount() 中出现错误，指出“gapi 未定义”。我该如何解决？我也尝试过初始化gapi，但我不知道该把它放在哪里。
<template>
<div id = "signin"><div class="g-signin2">Sign in with LFA Email</div></div>
</div>
</template>
<script src="https://apis.google.com/js/platform.js" async defer></script>
<script>
import UserDataService from "../services/UserDataService";
export default {
data(){
return {
emailAddress:"",
signedIn:false
};
},
methods:{
onSignIn(user){
const profile = user.getBasicProfile()
this.emailAddress =profile.getEmail()
console.log(this.emailAddress)
if(this.emailAddress.indexOf("@students.org")>-1){
UserDataService.create(this.emailAddress)
this.signedIn = true
}
else{
alert("Please sign in with an LFA Email Account")
var auth2 = gapi.auth2.getAuthInstance();
auth2.signOut().then(function () {
console.log('User signed out.');
});
this.signedIn=false
}
}
},
mounted() {
gapi.signin2.render('signin', {
'scope': 'profile email',
'width': 240,
'height': 50,
'longtitle': true,
'theme': 'dark',
'onsuccess': this.onSuccess,
})
}
}
</script>
<style>
@import '../../public/stylesheet.css';
</style>
您不能放置此标签<script src="https://apis.google.com/js/platform.js"></script>放在单个文件组件中。
将此标签放入您的public/index.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<link rel="icon" href="<%= BASE_URL %>favicon.ico">
<title>t-vue</title>
</head>
<body>
<noscript>
<strong>We're sorry but t-vue doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
</noscript>
<div id="app"></div>
<script src="https://apis.google.com/js/platform.js"></script>
<!-- built files will be auto injected -->
</body>
</html>
除此之外，您还需要删除属性async和defer。因为当你调用gapi变量时mounted时还没有下载。
正确的脚本是：<script src="https://apis.google.com/js/platform.js"></script>
PS：我创建了一个适合我的最小示例，请在您的计算机中尝试一下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<button @click="test">Click Here</button>
</div>
<script src="https://apis.google.com/js/platform.js"></script>
<script>
let app = new Vue({
el: '#app',
methods: {
test() {
console.log('method', gapi);
},
},
mounted() {
console.log('mounted', gapi);
},
});
</script>
</body>
</html>