HTML无法直接通过WebSocket接收文件并启动下载对话框,需要结合后端语言如PHP、Node.js等实现。
HTML 通过WebSocket接收文件并启动下载对话框
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单元1:简介
WebSocket是一种在浏览器和服务器之间进行双向通信的网络协议。
通过WebSocket,我们可以实现实时数据传输和低延迟的通信。
单元2:准备工作
在服务器端,需要创建一个WebSocket服务器来监听连接请求和发送文件数据。
在客户端,需要编写HTML代码来创建WebSocket连接,接收文件数据并启动下载对话框。
单元3:服务器端代码示例(Node.js)
const WebSocket = require('ws');
const fs = require('fs');
const server = new WebSocket.Server({ port: 8080 });
server.on('connection', (socket) => {
console.log('客户端已连接');
const filePath = 'path/to/file'; // 文件路径
const fileSize = fs.statSync(filePath).size; // 文件大小
const fileName = 'file.txt'; // 文件名
socket.sendUTF(${fileName};${fileSize}); // 发送文件名和大小给客户端
const readStream = fs.createReadStream(filePath);
readStream.pipe(socket); // 将文件内容通过WebSocket传输给客户端
});
单元4:客户端代码示例(HTML + JavaScript)
WebSocket文件下载
开始下载
基本
文件
流程
错误
SQL
调试
请求信息 : 2026-02-16 15:45:50 HTTP/1.1 GET : /article/ccoepdo.html 运行时间 : 0.0736s ( Load:0.0033s Init:0.0170s Exec:0.0491s Template:0.0042s ) 吞吐率 : 13.59req/s 内存开销 : 2,222.63 kb 查询信息 : 12 queries 5 writes 文件加载 : 36 缓存信息 : 0 gets 2 writes 配置加载 : 130 会话信息 : SESSION_ID=4uur7igh67143pndul2d6rldl5
/home/wwwroot/jxjierui.cn/index.php ( 1.12 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/ThinkPHP.php ( 4.61 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Mode/common.php ( 2.82 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Common/functions.php ( 53.56 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/App.class.php ( 13.49 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/View.class.php ( 7.59 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Conf/convention.php ( 11.15 KB ) /home/wwwroot/jxjierui.cn/App/Common/Conf/config.php ( 2.12 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Lang/zh-cn.php ( 2.55 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Conf/debug.php ( 1.48 KB ) /home/wwwroot/jxjierui.cn/App/Home/Conf/config.php ( 0.32 KB ) /home/wwwroot/jxjierui.cn/App/Home/Common/function.php ( 3.33 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB ) /home/wwwroot/jxjierui.cn/App/Home/Controller/ArticleController.class.php ( 6.11 KB ) /home/wwwroot/jxjierui.cn/App/Home/Controller/CommController.class.php ( 1.60 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB ) /home/wwwroot/jxjierui.cn/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 13.96 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB ) /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
[ app_init ] --START-- Run Behavior\BuildLiteBehavior [ RunTime:0.000004s ] [ app_init ] --END-- [ RunTime:0.000024s ] [ app_begin ] --START-- Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000134s ] [ app_begin ] --END-- [ RunTime:0.000146s ] [ view_parse ] --START-- [ template_filter ] --START-- Run Behavior\ContentReplaceBehavior [ RunTime:0.000049s ] [ template_filter ] --END-- [ RunTime:0.000067s ] Run Behavior\ParseTemplateBehavior [ RunTime:0.003317s ] [ view_parse ] --END-- [ RunTime:0.003332s ] [ view_filter ] --START-- Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000061s ] [ view_filter ] --END-- [ RunTime:0.000068s ] [ app_end ] --START--
1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= ) [8] Undefined index: pid /home/wwwroot/jxjierui.cn/App/Home/Controller/ArticleController.class.php 第 47 行. [2] file_put_contents(./App/Runtime/Temp/d2b336800bc40d0a3bb8e57d45f449ed.php): failed to open stream: Permission denied /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 132 行. [8] Undefined index: db_host /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 120 行. [8] Undefined index: db_port /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 121 行. [8] Undefined index: db_name /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 122 行. [2] file_put_contents(./App/Runtime/Temp/33ae3083bfd19a6368c904fa12eda970.php): failed to open stream: Permission denied /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 132 行.
0.0736s