"e-upload-image": "../../components/upload/image" } }
时间: 2024-05-23 12:09:45 浏览: 60
这段代码看起来像是一个 JSON 对象,其中包含了一个键值对,键为 "e-upload-image",值为 "../../components/upload/image"。这个对象可能被用于配置某个程序或组件的行为。具体来说,这个对象可能是某个 JavaScript 文件中的一部分,用于告诉程序在哪里可以找到一个名为 "e-upload-image" 的组件或模块。这个组件可能用于上传图片,因为它的名称中包含了 "image" 这个词。
相关问题
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Vue-upload-component Test</title> <script src="https://unpkg.com/vue"></script> <script src="https://unpkg.com/vue-upload-component"></script> </head> <body> <div id="app"> <ul> <li v-for="file in files">{{file.name}} - Error: {{file.error}}, Success: {{file.success}}</li> </ul> <file-upload ref="upload" v-model="files" post-action="/post.method" put-action="/put.method" @input-file="inputFile" @input-filter="inputFilter" > Upload file </file-upload> <button v-show="!$refs.upload || !$refs.upload.active" @click.prevent="$refs.upload.active = true" type="button">Start upload</button> <button v-show="$refs.upload && $refs.upload.active" @click.prevent="$refs.upload.active = false" type="button">Stop upload</button> </div> <script> new Vue({ el: '#app', data: function () { return { files: [] } }, components: { FileUpload: VueUploadComponent }, methods: { /** * Has changed * @param Object|undefined newFile Read only * @param Object|undefined oldFile Read only * @return undefined */ inputFile: function (newFile, oldFile) { if (newFile && oldFile && !newFile.active && oldFile.active) { // Get response data console.log('response', newFile.response) if (newFile.xhr) { // Get the response status code console.log('status', newFile.xhr.status) } } }, /** * Pretreatment * @param Object|undefined newFile Read and write * @param Object|undefined oldFile Read only * @param Function prevent Prevent changing * @return undefined */ inputFilter: function (newFile, oldFile, prevent) { if (newFile && !oldFile) { // Filter non-image file if (!/\.(jpeg|jpe|jpg|gif|png|webp)$/i.test(newFile.name)) { return prevent() } } // Create a blob field newFile.blob = '' let URL = window.URL || window.webkitURL if (URL && URL.createObjectURL) { newFile.blob = URL.createObjectURL(newFile.file) } } } }); </script> </body> </html> 将这个页面改为 vue3 的写法
好的,下面是将这个页面改为 Vue 3 的写法:
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue-upload-component Test</title>
<script src="https://unpkg.com/vue@next"></script>
<script src="https://unpkg.com/vue-upload-component@3.0.0-beta.6"></script>
</head>
<body>
<div id="app">
<ul>
<li v-for="file in files">{{file.name}} - Error: {{file.error}}, Success: {{file.success}}</li>
</ul>
<file-upload
ref="upload"
v-model="files"
:post-action="'/post.method'"
:put-action="'/put.method'"
@input-file="inputFile"
@input-filter="inputFilter"
>
Upload file
</file-upload>
<button v-show="!$refs.upload || !$refs.upload.active" @click.prevent="$refs.upload.active = true" type="button">Start upload</button>
<button v-show="$refs.upload && $refs.upload.active" @click.prevent="$refs.upload.active = false" type="button">Stop upload</button>
</div>
<script>
const { createApp, ref } = Vue;
const { VueUploadComponent } = vueUploadComponent;
createApp({
setup() {
const files = ref([]);
const inputFile = (newFile, oldFile) => {
if (newFile && oldFile && !newFile.active && oldFile.active) {
// Get response data
console.log('response', newFile.response);
if (newFile.xhr) {
// Get the response status code
console.log('status', newFile.xhr.status);
}
}
};
const inputFilter = (newFile, oldFile, prevent) => {
if (newFile && !oldFile) {
// Filter non-image file
if (!/\.(jpeg|jpe|jpg|gif|png|webp)$/i.test(newFile.name)) {
return prevent();
}
}
// Create a blob field
newFile.blob = ''
let URL = window.URL || window.webkitURL
if (URL && URL.createObjectURL) {
newFile.blob = URL.createObjectURL(newFile.file)
}
};
return {
files,
inputFile,
inputFilter
}
},
components: {
'file-upload': VueUploadComponent
}
}).mount('#app');
</script>
</body>
</html>
```
主要变化如下:
- 使用 `createApp` 创建 Vue 实例;
- 使用 `ref` 创建响应式变量;
- 使用 `setup` 函数代替 `data` 属性;
- 使用 `VueUploadComponent` 替代 `vueUploadComponent`;
- 使用 `v-bind` 缩写 `:` 替代 `v-bind`;
- 使用 `v-on` 缩写 `@` 替代 `v-on`;
- 使用 `file-upload` 替代 `file-upload`。
<script setup> import VueUploadComponent from "vue-upload-component"; import { upload } from "@/api/conf"; const isUploading = ref(false); const allowedExtensions = ref(["jpg", "jpeg", "png", "gif"]); const maxFileSize = ref(10 * 1024 * 1024); const uploadedFiles = ref([]); function handleInputFilter(uploadData) { // 文件过滤器 if (uploadData.file.type.indexOf("image/") !== 0) { return Promise.reject("只能上传图片文件"); } return Promise.resolve(uploadData); } function handleBeforeUpload(uploadData) { // 开始上传前的回调 this.isUploading = true; return uploadData; } function handleUploading(uploadData) { console.log("uploading", uploadData.progress); } function handleUploadSuccess(uploadData) { console.log("success", uploadData.url); this.uploadedFiles.push({ id: uploadData.response.id, name: uploadData.file.name, size: uploadData.file.size, url: uploadData.response.url, }); this.isUploading = false; } function handleUploadError(uploadData) { console.error("error", uploadData.error); this.isUploading = false; } function fileSize(size) { if (size < 1024) { return size + "B"; } else if (size < 1024 * 1024) { return (size / 1024).toFixed(2) + "KB"; } else { return (size / 1024 / 1024).toFixed(2) + "MB"; } } function deleteFile(index) { this.uploadedFiles.splice(index, 1); } </script> <template> <div> <vue-upload-component :http-client="upload" :multiple="true" :accept="'image/*'" :extensions="allowedExtensions" :maxSize="maxFileSize" @input-filter="handleInputFilter" @before-upload="handleBeforeUpload" @uploading="handleUploading" @upload-success="handleUploadSuccess" @upload-error="handleUploadError" > <template v-slot:default> <div class="upload-area"> <div v-if="!isUploading"> <i class="iconfont icon-add"></i> <span class="text">点击上传</span> </div> <div v-else> <i class="iconfont icon-loading"></i> <span class="text">上传中...</span> </div> </div> </template> </vue-upload-component> <div class="preview-area"> <div v-for="(file, index) in uploadedFiles" :key="file.id"> <img :src="file.url" class="preview-image" /> <div class="preview-name">{{ file.name }}</div> <div class="preview-size">{{ fileSize(file.size) }}</div> <div class="preview-delete" @click="deleteFile(index)">删除</div> </div> </div> </div> </template> 优化一下
首先,可以将一些处理函数和变量移出 `setup`,放到 `data()` 或 `methods` 中,以便更好地组织代码。同时,可以使用 `computed` 来计算文件大小,使得代码更加简洁。另外,可以将上传成功后的文件信息作为一个对象,而不是多个独立的属性,这样可以更好地管理文件信息。
修改后的代码如下:
```
<template>
<div>
<vue-upload-component
:http-client="upload"
:multiple="true"
:accept="'image/*'"
:extensions="allowedExtensions"
:maxSize="maxFileSize"
@input-filter="handleInputFilter"
@before-upload="handleBeforeUpload"
@uploading="handleUploading"
@upload-success="handleUploadSuccess"
@upload-error="handleUploadError"
>
<template v-slot:default>
<div class="upload-area">
<div v-if="!isUploading">
<i class="iconfont icon-add"></i>
<span class="text">点击上传</span>
</div>
<div v-else>
<i class="iconfont icon-loading"></i>
<span class="text">上传中...</span>
</div>
</div>
</template>
</vue-upload-component>
<div class="preview-area">
<div v-for="(file, index) in uploadedFiles" :key="file.id">
<img :src="file.url" class="preview-image" />
<div class="preview-info">
<div class="preview-name">{{ file.name }}</div>
<div class="preview-size">{{ fileSize(file.size) }}</div>
<div class="preview-delete" @click="deleteFile(index)">删除</div>
</div>
</div>
</div>
</div>
</template>
<script>
import VueUploadComponent from "vue-upload-component";
import { upload } from "@/api/conf";
export default {
components: {
VueUploadComponent,
},
data() {
return {
isUploading: false,
allowedExtensions: ["jpg", "jpeg", "png", "gif"],
maxFileSize: 10 * 1024 * 1024,
uploadedFiles: [],
};
},
computed: {
fileSize() {
return function(size) {
if (size < 1024) {
return size + "B";
} else if (size < 1024 * 1024) {
return (size / 1024).toFixed(2) + "KB";
} else {
return (size / 1024 / 1024).toFixed(2) + "MB";
}
};
},
},
methods: {
handleInputFilter(uploadData) {
// 文件过滤器
if (uploadData.file.type.indexOf("image/") !== 0) {
return Promise.reject("只能上传图片文件");
}
return Promise.resolve(uploadData);
},
handleBeforeUpload(uploadData) {
// 开始上传前的回调
this.isUploading = true;
return uploadData;
},
handleUploading(uploadData) {
console.log("uploading", uploadData.progress);
},
handleUploadSuccess(uploadData) {
console.log("success", uploadData.url);
const file = {
id: uploadData.response.id,
name: uploadData.file.name,
size: uploadData.file.size,
url: uploadData.response.url,
};
this.uploadedFiles.push(file);
this.isUploading = false;
},
handleUploadError(uploadData) {
console.error("error", uploadData.error);
this.isUploading = false;
},
deleteFile(index) {
this.uploadedFiles.splice(index, 1);
},
},
};
</script>
```