如何在 Vue 单文件组件中导入和使用图像？

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最佳答案

As simple as:

<template>
<div id="app">
<img src="./assets/logo.png">
</div>
</template>
    

<script>
export default {
}
</script>
    

<style lang="css">
</style>

Taken from the project generated by vue cli.

If you want to use your image as a module, do not forget to bind data to your Vuejs component:

<template>
<div id="app">
<img :src="image"/>
</div>
</template>
    

<script>
import image from "./assets/logo.png"
    

export default {
data: function () {
return {
image: image
}
}
}
</script>
    

<style lang="css">
</style>

And a shorter version:

<template>
<div id="app">
<img :src="require('./assets/logo.png')"/>
</div>
</template>
    

<script>
export default {
}
</script>
    

<style lang="css">
</style>

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It is heavily suggested to make use of webpack when importing pictures from assets and in general for optimisation and pathing purposes

If you wish to load them by webpack you can simply use :src='require('path/to/file')' Make sure you use : otherwise it won't execute the require statement as Javascript.

In typescript you can do almost the exact same operation: :src="require('@/assets/image.png')"

Why the following is generally considered bad practice:

<template>
<div id="app">
<img src="./assets/logo.png">
</div>
</template>


<script>
export default {
}
</script>


<style lang="scss">
</style>

When building using the Vue cli, webpack is not able to ensure that the assets file will maintain a structure that follows the relative importing. This is due to webpack trying to optimize and chunk items appearing inside of the assets folder. If you wish to use a relative import you should do so from within the static folder and use: <img src="./static/logo.png">

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I came across this issue recently, and i'm using Typescript. If you're using Typescript like I am, then you need to import assets like so:

<img src="@/assets/images/logo.png" alt="">

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These both work for me in JavaScript and TypeScript

<img src="@/assets/images/logo.png" alt="">

or

 <img src="./assets/images/logo.png" alt="">

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You can also use the root shortcut like so

  <template>
<div class="container">
<h1>Recipes</h1>
<img src="@/assets/burger.jpg" />
</div>
</template>

Although this was Nuxt, it should be same with Vue CLI.

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I encounter a problem in quasar which is a mobile framework based vue, the tidle syntax ~assets/cover.jpg works in normal component, but not in my dynamic defined component, that is defined by

let c=Vue.component('compName',{...})

finally this work:

    computed: {
coverUri() {
return require('../assets/cover.jpg');
}
}

<q-img class="coverImg" :src="coverUri" :height="uiBook.coverHeight" spinner-color="white"/>

according to the explain at https://quasar.dev/quasar-cli/handling-assets

In *.vue components, all your templates and CSS are parsed by vue-html-loader and css-loader to look for asset URLs. For example, in <img src="./logo.png"> and background: url(./logo.png), "./logo.png" is a relative asset path and will be resolved by Webpack as a module dependency.

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For Vue 3 I had to use

<template>
<div id="app">
<img :src="zapierLogo" />
</div>
</template>


<script>
import zapierLogo from 'images/zapier_logo.svg'




export default {
...
data: function () {
return {
zapierLogo
}
}
}
</script>

Both src="@/assets/burger.jpg" and src="../assets/burger.jpg" didn't seem to work.

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..when everything else fails, like in my case as i tried to import a placeholder i used several times in a multipaged Vuelectro-app - but this time inside a sub-subcomponent where none of the suggested solutions worked (as they usually do)..

<template>
<div id="app">
<img :src="image"/>
</div>
</template>


<script>
export default {
data() { return {image: null, ...} },
methods: {
solveImage(){
const path = require('path')
return path.join(process.cwd(), '/src/assets/img/me.jpg')
},
...
},
mounted: {
this.image = this.solveImage()
...
}
}
</script>

..should do it.

if it even works better in created-lifecycle-hook or you'd prefer to require path globally and just call

this.image = path.join(...)

in one of the hooks - you should test yourself.

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I'm also facing same problem to display the assets image. Finally this two way work fine for me-

<img src="@/assets/img/bg1.png" />

and

<img :src="require('@/assets/img/bg1.png')" />

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in my case i have a base64 image and have to import for parse the mimeType and data from the image

this how the template look like

<template>
<img
@click="openCardDetail(item)"
class="thumbnailInfo"
width="80"
height="50"
:src="getImageToShow(item.stationeryThumbnail)"
/>
</template>

Here i imported the image

import image from '@/assets/noimage.png'

then i instantiated it

data: () => ({
...
image: image,
})

then i used only if there is no data in the item

getImageToShow(item) {
if(item != null && item?.mimeType !== '' && item?.base64ImageData !== '') {
return `data:${item?.mimeType};base64,${item.base64ImageData};`
}
return `${this.image}`;
}

it solved my problem