JSP实现页面版SSH

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最新推荐文章于 2025-12-02 21:20:38 发布 · 1k 阅读

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#java #ssh #开发语言

JSP实现页面版SSH

实现原理

通过JSP结合Java的SSH库（如JSch）建立Web终端，核心流程：

前端使用 Xterm.js 提供终端界面
后端通过 WebSocket 建立双向通信
JSP调用 JSch库 连接远程服务器

实现步骤

1. 前端页面 (terminal.jsp)

<%@ page contentType="text/html;charset=UTF-8" %>
<html>
<head>
    <title>Web SSH</title>
    <link rel="stylesheet" href="https://unpkg.com/xterm/css/xterm.css">
    <script src="https://unpkg.com/xterm/lib/xterm.js"></script>
    <script src="https://unpkg.com/xterm-addon-fit/lib/xterm-addon-fit.js"></script>
</head>
<body>
    <div id="terminal" style="height:90vh"></div>
    
    <script>
        const term = new Terminal();
        const fitAddon = new FitAddon.FitAddon();
        term.loadAddon(fitAddon);
        term.open(document.getElementById('terminal'));
        fitAddon.fit();
        
        // 建立WebSocket连接
        const ws = new WebSocket("ws://<%=request.getServerName()%>:<%=request.getServerPort()%><%=request.getContextPath()%>/ssh");
        
        term.onData(data => ws.send(JSON.stringify({type: 'input', data})));
        
        ws.onmessage = event => term.write(event.data);
        ws.onclose = () => term.write("\r\nConnection closed");
    </script>
</body>
</html>

2. WebSocket端点 (SSHEndpoint.java)

import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import com.jcraft.jsch.*;

@ServerEndpoint("/ssh")
public class SSHEndpoint {
   
   
    private ChannelShell channel;
    
    @OnOpen
    public void onOpen(Session session) {
   
   
        try {
   
   
            JSch jsch = new JSch();
            com.jcraft.jsch.Session sshSession = jsch.getSession("username", "host", 22);
            sshSession.setPassword("password");
            sshSession.setConfig("StrictHostKeyChecking", "no");
            sshSession.connect();
            
            channel = (ChannelShell) sshSession.openChannel("shell");
            channel.connect();
            
            // 转发SSH输出到WebSocket
            new Thread(() -> {
   
   
                try(InputStream in = channel.getInputStream()) {
   
   
                    byte[] buffer = new byte[1024];
                    int length;
                    while ((length = in.read(buffer)) != -1) {
   
   
                        session.getBasicRemote().sendText(new