好吧，这是我在qiokian(一个live2d动画人物vuejs组件)中的实践:

(以下来自src/qiokian.vue文件)

<script>
export default {
    data() {
        return {
            live2d_path:
                'https://cdn.jsdelivr.net/gh/knowscount/live2d-widget@latest/',
            cdnPath: 'https://cdn.jsdelivr.net/gh/fghrsh/live2d_api/',
        }
    },
<!-- ... -->
        loadAssets() {
            // load waifu.css live2d.min.js waifu-tips.js
            if (screen.width >= 768) {
                Promise.all([
                    this.loadExternalResource(
                        this.live2d_path + 'waifu.css',
                        'css'
                    ),
<!-- ... -->
        loadExternalResource(url, type) {
            // note: live2d_path parameter should be an absolute path
            // const live2d_path =
            //   "https://cdn.jsdelivr.net/gh/knowscount/live2d-widget@latest/";
            //const live2d_path = "/live2d-widget/";
            return new Promise((resolve, reject) => {
                let tag

                if (type === 'css') {
                    tag = document.createElement('link')
                    tag.rel = 'stylesheet'
                    tag.href = url
                } else if (type === 'js') {
                    tag = document.createElement('script')
                    tag.src = url
                }
                if (tag) {
                    tag.onload = () => resolve(url)
                    tag.onerror = () => reject(url)
                    document.head.appendChild(tag)
                }
            })
        },
    },
}

解决这个问题的一个简单而有效的方法是将外部脚本添加到组件的vue mounted()中。我将用谷歌Recaptcha脚本为您演示:

<template>
   .... your HTML
</template>

<script>
  export default {
    data: () => ({
      ......data of your component
    }),
    mounted() {
      let recaptchaScript = document.createElement('script')
      recaptchaScript.setAttribute('src', 'https://www.google.com/recaptcha/api.js')
      document.head.appendChild(recaptchaScript)
    },
    methods: {
      ......methods of your component
    }
  }
</script>

来源:https://medium.com/@lassiuosukainen how-to-include-a-script-tag-on-a-vue-component-fe10940af9e8

为了保持组件的干净，你可以使用mixin。

在组件上导入外部mixin文件。

Profile.vue

import externalJs from '@client/mixins/externalJs';

export default{
  mounted(){
    this.externalJsFiles();
  }
}

externalJs.js

import('@JSassets/js/file-upload.js').then(mod => {
  // your JS elements 
})

babelrc(我包括这个，如果任何导入卡住)

{
  "presets":["@babel/preset-env"],
  "plugins":[
    [
     "module-resolver", {
       "root": ["./"],
       alias : {
         "@client": "./client",
         "@JSassets": "./server/public",
       }
     }
    ]
}

顶部的创建标签的答案是好的，但它有一些问题:如果你改变你的链接多次，它会重复创建标签一遍又一遍。

所以我创建了一个脚本来解决这个问题，如果你愿意，你可以删除标签。

它非常简单，但可以节省你自己创建的时间。

// PROJECT/src/assets/external.js

function head_script(src) {
    if(document.querySelector("script[src='" + src + "']")){ return; }
    let script = document.createElement('script');
    script.setAttribute('src', src);
    script.setAttribute('type', 'text/javascript');
    document.head.appendChild(script)
}

function body_script(src) {
    if(document.querySelector("script[src='" + src + "']")){ return; }
    let script = document.createElement('script');
    script.setAttribute('src', src);
    script.setAttribute('type', 'text/javascript');
    document.body.appendChild(script)
}

function del_script(src) {
    let el = document.querySelector("script[src='" + src + "']");
    if(el){ el.remove(); }
}


function head_link(href) {
    if(document.querySelector("link[href='" + href + "']")){ return; }
    let link = document.createElement('link');
    link.setAttribute('href', href);
    link.setAttribute('rel', "stylesheet");
    link.setAttribute('type', "text/css");
    document.head.appendChild(link)
}

function body_link(href) {
    if(document.querySelector("link[href='" + href + "']")){ return; }
    let link = document.createElement('link');
    link.setAttribute('href', href);
    link.setAttribute('rel', "stylesheet");
    link.setAttribute('type', "text/css");
    document.body.appendChild(link)
}

function del_link(href) {
    let el = document.querySelector("link[href='" + href + "']");
    if(el){ el.remove(); }
}

export {
    head_script,
    body_script,
    del_script,
    head_link,
    body_link,
    del_link,
}

你可以这样使用它:

// PROJECT/src/views/xxxxxxxxx.vue

......

<script>
    import * as external from '@/assets/external.js'
    export default {
        name: "xxxxxxxxx",
        mounted(){
            external.head_script('/assets/script1.js');
            external.body_script('/assets/script2.js');
            external.head_link('/assets/style1.css');
            external.body_link('/assets/style2.css');
        },
        destroyed(){
            external.del_script('/assets/script1.js');
            external.del_script('/assets/script2.js');
            external.del_link('/assets/style1.css');
            external.del_link('/assets/style2.css');
        },
    }
</script>

......

我发现一个快速简单的方法是这样的:

<template>
    <div>Some HTML</div>
    <component
        src="https://unpkg.com/flowbite@1.5.3/dist/flowbite.js"
        :is="'script'"
    ></component>
</template>

我下载了一些HTML模板，附带自定义js文件和jquery。我必须将这些js附加到我的应用程序，并继续使用Vue。

发现这个插件，它是一个干净的方式来添加外部脚本通过CDN和静态文件 https://www.npmjs.com/package/vue-plugin-load-script

// local files
// you have to put your scripts into the public folder. 
// that way webpack simply copy these files as it is.
Vue.loadScript("/js/jquery-2.2.4.min.js")

// cdn
Vue.loadScript("https://maps.googleapis.com/maps/api/js")