JSch 实现 SSH 端口转发

 package com.yinger.webservice.test;

 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.ResultSet;
 import java.sql.Statement;

 import com.jcraft.jsch.JSch;
 import com.jcraft.jsch.JSchException;
 import com.jcraft.jsch.Session;

 public class SSHexample {

     static int localPort = 3306;// 本地端口
     static String remoteHost = "localhost";// 远程MySQL服务器
     static int remotePort = 3306;// 远程MySQL服务端口

     public static void startSSH() throws JSchException {
         // SSH连接用户名
         String sshUser = "root";
         // SSH连接密码
         String sshPassword = "Shopex000000";
         // SSH服务器
         String sshHost = "120.76.101.77";
         // SSH访问端口
         int sshPort = 22;
         JSch jsch = new JSch();
         Session session = jsch.getSession(sshUser, sshHost, sshPort);
         session.setPassword(sshPassword);
         // 设置第一次登陆的时候提示，可选值：(ask | yes | no)
         session.setConfig("StrictHostKeyChecking", "no");
         session.connect();
         // 打印SSH服务器版本信息
         System.out.println(session.getServerVersion());
         // 设置SSH本地端口转发,本地转发到远程
         int assinged_port = session.setPortForwardingL(localPort, remoteHost, remotePort);
         // 删除本地端口的转发
         // session.delPortForwardingL(localPort);
         // 断开SSH链接
         // session.disconnect();
         // 设置SSH远程端口转发,远程转发到本地
         // session.setPortForwardingR(remotePort, remoteHost, localPort);
         System.out.println("localhost:" + assinged_port + " -> " + remoteHost + ":" + remotePort);
     }

     public static void testSSH() throws Exception {
         Connection conn = null;
         Statement st = null;
         ResultSet rs = null;
         try {
             Class.forName("com.mysql.jdbc.Driver");
             // 设置SSH本地端口转发后，访问本地ip+port就可以访问到远程的ip+port
             conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "123456");
             st = conn.createStatement();
             String sql = "select * from test limit 10";
             rs = st.executeQuery(sql);
             while (rs.next())
                 System.out.println(rs.getString(1));
         } catch (Exception e) {
             throw e;
         } finally {
             if (rs!=null) {rs.close();rs=null;}
             if (st!=null) {st.close();st=null;}
             if (conn!=null) {conn.close();conn=null;}
         }
     }

     public static void main(String[] args) throws Exception {
         startSSH();
         testSSH();
     }
 }