javascript 如何在Vue应用的index.html文件中使用环境变量?

ktecyv1j  于 2023-03-21  发布在  Java
关注(0)|答案(2)|浏览(650)

我有一个索引文件:

<!DOCTYPE html>
<html lang="en">

<head>
    <!-- Required Meta -->
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Title For This Document -->
    <title> Html Template</title>
    <!-- Favicon For This Document -->
    <link rel="shortcut icon" href="src/assets/images/logo/favicon-32x32.png" type="image/x-icon">
    <!-- Bootstrap 5 Css -->
    <link rel="stylesheet" href="src/assets/css/bootstrap.5.1.1.min.css">
    <!-- Google fonts -->
    <link href="https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@300;400;500;600;700&family=Roboto:wght@300;400;500;700&display=swap" rel="stylesheet">
    <!-- FlatIcon Css -->
    <link rel="stylesheet" href="src/assets/fonts/flaticon.css">

    <!-- Slick Slider Css -->
    <link rel="stylesheet" href="src/assets/css/plugin/slick.css">
    <!--  Ui Tabs Css -->
    <link rel="stylesheet" href="src/assets/css/plugin/jquery-ui.min.css">
    <!-- Magnific-popup Css -->
    <link rel="stylesheet" href="src/assets/css/plugin/magnific-popup.css">
    <!-- Nice Select Css -->
    <link rel="stylesheet" href="src/assets/css/plugin/nice-select.v1.0.css">
    <!-- Animate Css -->
    <link rel="stylesheet" href="src/assets/css/plugin/animate.css">
    <!-- Style Css -->
    <link rel="stylesheet" href="src/assets/css/style.css">

</head>

<body>
<!--===scroll bottom to top===-->
<a href="#0" class="scrollToTop"><i class="flaticon-up-arrow"></i></a>
<!--===scroll bottom to top===-->
<div id="app"></div>
<!--==== Js Scripts Start ====-->
<!-- Jquery v3.6.0 Js -->

<script src="src/assets/js/jquery.v3.6.0.min.js"></script> <!-- Popper v2.9.3 Js -->
<script src="src/assets/js/popper.v2.9.3.min.js"></script> <!-- Bootstrap v5.1.1 js -->
<script src="src/assets/js/bootstrap.v5.1.1.min.js"></script> <!-- jquery ui js -->
<script src="src/assets/js/plugin/jquery-ui.min.js"></script> <!-- Parallax js -->
<script src="src/assets/js/plugin/jarallax.min.js"></script> <!-- Isotope js -->
<script src="src/assets/js/plugin/isotope.js"></script> <!-- Slick Slider Js -->
<script src="src/assets/js/plugin/slick.min.js"></script> <!-- magnific-popup v2.3.4 Js -->
<script src="src/assets/js/plugin/jquery.magnific-popup.min.js"></script> <!-- Tweenmax v2.3.4 Js -->
<script src="src/assets/js/plugin/tweenMax.min.js"></script> <!-- Nice Select Js -->
<script src="src/assets/js/plugin/nice-select.v1.0.min.js"></script> <!-- Wow js -->
<script src="src/assets/js/plugin/wow.v1.3.0.min.js"></script> <!-- Wow js -->
<script src="src/assets/js/plugin/jquery.countdown.min.js"></script> <!-- Main js -->
<script src="src/assets/js/main.js"></script>
<!--==== Js Scripts End ====-->
<script type="module" src="/src/main.js"></script>
</body>

</html>

我有一个Vue应用程序:

import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import axios from 'axios'

const app = createApp(App)

app.use(router)
app.config.globalProperties.axios = axios
app.mount('#app')

我用的是vite,不是CLI。
我想在索引文件中使用我的env变量(而不是在js脚本标记中)从.env文件如何实现它?我读了vue文档,但它没有任何例子如何在html代码中使用它。我尝试了“import. meta.env”这里:

<div id="app">{{import.meta.env.DOMAIN_NAME}}</div>

我试着在这里使用它:

<meta name="DOMAIN_NAME" value={import.meta.env.DOMAIN_NAME}>

,但它没有这样工作...我认为这是不正确的语法至少...

kgsdhlau

kgsdhlau1#

我想你正在寻找的是:是如何修改元数据(头部分的标签),我建议你使用vue-meta插件,它将允许你的META DOMAIN_NAME标签,然后在你的main.js中你可以定义:

Vue.use(VueMeta, {
  DOMAIN_NAME: VUE_APP_DOMAIN_NAME
})

一切都在这里解释得很好:https://www.digitalocean.com/community/tutorials/vuejs-vue-meta
否则我认为你的代码中有语法错误,正确的语法是

<meta name="DOMAIN_NAME" value="<%= import.meta.env.DOMAIN_NAME %>">

请输入Vuejs生成的index.html文件

xxb16uws

xxb16uws2#

Vite 4.2.0中添加了替换环境变量,请参见https://vitejs.dev/guide/env-and-mode.html#html-env-replacement
将以下内容添加到.env/.env.dev/...文件中:

VITE_DOMAIN_NAME = https://your-domain

或将以下内容添加到您的vite.conf.js

process.env.VITE_DOMAIN_NAME = 'https://your-domain'

然后你可以在index.html中替换它,如下所示:

<div id="app">%VITE_DOMAIN_NAME%</div>

你必须给你的环境变量加上前缀 VITE_,这样它们才能在你的代码中公开。

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