Web Front-end
JS Tutorial
Detailed explanation of batch downloading and packaging of files in Vue
Detailed explanation of batch downloading and packaging of files in Vue
This article mainly introduces the sample code for batch downloading and packaging of files in Vue. Use ajax to download the files, then use jszip to compress the files, and finally use file-saver to generate the files. If you are interested, you can learn more. I hope it can help you. .
Idea: Use ajax to download the file, then use jszip to compress the file, and finally use file-saver to generate the file
1. Preparation
Installation 3 dependencies: axios, jszip, file-saver
yarn add axios yarn add jszip yarn add file-saver
2. Download file
import axios from 'axios'
const getFile = url => {
return new Promise((resolve, reject) => {
axios({
method:'get',
url,
responseType: 'arraybuffer'
}).then(data => {
resolve(data.data)
}).catch(error => {
reject(error.toString())
})
})
}What needs to be noted here is the responseType. If the downloaded file is of text type (such as: .txt, .js, etc.), then responseType: 'text' can also be used, but if the downloaded file is an image, video Class, you have to use arraybuffer
3. Package file
##
import JSZip from 'jszip'
import FileSaver from 'file-saver'
export default {
methods: {
handleBatchDownload() {
const data = ['各类地址1', '各类地址2'] // 需要下载打包的路径, 可以是本地相对路径, 也可以是跨域的全路径
const zip = new JSZip()
const cache = {}
const promises = []
data.forEach(item => {
const promise = getFile(item).then(data => { // 下载文件, 并存成ArrayBuffer对象
const arr_name = item.split("/")
const file_name = arr_name[arr_name.length - 1] // 获取文件名
zip.file(file_name, data, { binary: true }) // 逐个添加文件
cache[file_name] = data
})
promises.push(promise)
})
Promise.all(promises).then(() => {
zip.generateAsync({type:"blob"}).then(content => { // 生成二进制流
FileSaver.saveAs(content, "打包下载.zip") // 利用file-saver保存文件
})
})
},
},
}4. Final code
import axios from 'axios'
import JSZip from 'jszip'
import FileSaver from 'file-saver'
const getFile = url => {
return new Promise((resolve, reject) => {
axios({
method:'get',
url,
responseType: 'arraybuffer'
}).then(data => {
resolve(data.data)
}).catch(error => {
reject(error.toString())
})
})
}
export default {
render(h) {
return (<a on-click={ () => this.handleBatchDownload() } href="javascript:;" rel="external nofollow" >批量下载</a>)
},
methods: {
handleBatchDownload() {
const data = ['各类地址1', '各类地址2'] // 需要下载打包的路径, 可以是本地相对路径, 也可以是跨域的全路径
const zip = new JSZip()
const cache = {}
const promises = []
data.forEach(item => {
const promise = getFile(item).then(data => { // 下载文件, 并存成ArrayBuffer对象
const arr_name = item.split("/")
const file_name = arr_name[arr_name.length - 1] // 获取文件名
zip.file(file_name, data, { binary: true }) // 逐个添加文件
cache[file_name] = data
})
promises.push(promise)
})
Promise.all(promises).then(() => {
zip.generateAsync({type:"blob"}).then(content => { // 生成二进制流
FileSaver.saveAs(content, "打包下载.zip") // 利用file-saver保存文件
})
})
},
},
}Python implements batch download files
Packaging tool parcel zero configuration vue development scaffolding
The above is the detailed content of Detailed explanation of batch downloading and packaging of files in Vue. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What to do if the 0x80004005 error code appears. The editor will teach you how to solve the 0x80004005 error code.
Mar 21, 2024 pm 09:17 PM
When deleting or decompressing a folder on your computer, sometimes a prompt dialog box "Error 0x80004005: Unspecified Error" will pop up. How should you solve this situation? There are actually many reasons why the error code 0x80004005 is prompted, but most of them are caused by viruses. We can re-register the dll to solve the problem. Below, the editor will explain to you the experience of handling the 0x80004005 error code. Some users are prompted with error code 0X80004005 when using their computers. The 0x80004005 error is mainly caused by the computer not correctly registering certain dynamic link library files, or by a firewall that does not allow HTTPS connections between the computer and the Internet. So how about
Different uses of slashes and backslashes in file paths
Feb 26, 2024 pm 04:36 PM
A file path is a string used by the operating system to identify and locate a file or folder. In file paths, there are two common symbols separating paths, namely forward slash (/) and backslash (). These two symbols have different uses and meanings in different operating systems. The forward slash (/) is a commonly used path separator in Unix and Linux systems. On these systems, file paths start from the root directory (/) and are separated by forward slashes between each directory. For example, the path /home/user/Docume
How to transfer files from Quark Cloud Disk to Baidu Cloud Disk?
Mar 14, 2024 pm 02:07 PM
Quark Netdisk and Baidu Netdisk are currently the most commonly used Netdisk software for storing files. If you want to save the files in Quark Netdisk to Baidu Netdisk, how do you do it? In this issue, the editor has compiled the tutorial steps for transferring files from Quark Network Disk computer to Baidu Network Disk. Let’s take a look at how to operate it. How to save Quark network disk files to Baidu network disk? To transfer files from Quark Network Disk to Baidu Network Disk, you first need to download the required files from Quark Network Disk, then select the target folder in the Baidu Network Disk client and open it. Then, drag and drop the files downloaded from Quark Cloud Disk into the folder opened by the Baidu Cloud Disk client, or use the upload function to add the files to Baidu Cloud Disk. Make sure to check whether the file was successfully transferred in Baidu Cloud Disk after the upload is completed. That's it
Detailed explanation of obtaining administrator rights in Win11
Mar 08, 2024 pm 03:06 PM
Windows operating system is one of the most popular operating systems in the world, and its new version Win11 has attracted much attention. In the Win11 system, obtaining administrator rights is an important operation. Administrator rights allow users to perform more operations and settings on the system. This article will introduce in detail how to obtain administrator permissions in Win11 system and how to effectively manage permissions. In the Win11 system, administrator rights are divided into two types: local administrator and domain administrator. A local administrator has full administrative rights to the local computer
What is hiberfil.sys file? Can hiberfil.sys be deleted?
Mar 15, 2024 am 09:49 AM
Recently, many netizens have asked the editor, what is the file hiberfil.sys? Can hiberfil.sys take up a lot of C drive space and be deleted? The editor can tell you that the hiberfil.sys file can be deleted. Let’s take a look at the details below. hiberfil.sys is a hidden file in the Windows system and also a system hibernation file. It is usually stored in the root directory of the C drive, and its size is equivalent to the size of the system's installed memory. This file is used when the computer is hibernated and contains the memory data of the current system so that it can be quickly restored to the previous state during recovery. Since its size is equal to the memory capacity, it may take up a larger amount of hard drive space. hiber
Detailed explanation of division operation in Oracle SQL
Mar 10, 2024 am 09:51 AM
Detailed explanation of division operation in OracleSQL In OracleSQL, division operation is a common and important mathematical operation, used to calculate the result of dividing two numbers. Division is often used in database queries, so understanding the division operation and its usage in OracleSQL is one of the essential skills for database developers. This article will discuss the relevant knowledge of division operations in OracleSQL in detail and provide specific code examples for readers' reference. 1. Division operation in OracleSQL
Detailed explanation of the role of .ibd files in MySQL and related precautions
Mar 15, 2024 am 08:00 AM
Detailed explanation of the role of .ibd files in MySQL and related precautions MySQL is a popular relational database management system, and the data in the database is stored in different files. Among them, the .ibd file is a data file in the InnoDB storage engine, used to store data and indexes in tables. This article will provide a detailed analysis of the role of the .ibd file in MySQL and provide relevant code examples to help readers better understand. 1. The role of .ibd files: storing data: .ibd files are InnoDB storage
Detailed explanation of log viewing command in Linux system!
Mar 06, 2024 pm 03:55 PM
In Linux systems, you can use the following command to view the contents of the log file: tail command: The tail command is used to display the content at the end of the log file. It is a common command to view the latest log information. tail [option] [file name] Commonly used options include: -n: Specify the number of lines to be displayed, the default is 10 lines. -f: Monitor the file content in real time and automatically display the new content when the file is updated. Example: tail-n20logfile.txt#Display the last 20 lines of the logfile.txt file tail-flogfile.txt#Monitor the updated content of the logfile.txt file in real time head command: The head command is used to display the beginning of the log file
