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

import java.util.Properties;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

public class CogradientImgFileManager {


    private static ChannelExec          channelExec;

    private static Session session = null;

    private static int                  timeout = 60000;

    // 测试代码
    public static void main(String[] args){
        try{
            versouSshUtil("10.18.50.100","root","123456",22);
            runCmd("java -version","UTF-8");
        }catch (Exception e){
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    /**
     * 连接远程服务器
     * @param host ip地址
     * @param userName 登录名
     * @param password 密码
     * @param port 端口
     * @throws Exception
     */
    public static void versouSshUtil(String host,String userName,String password,int port) throws Exception{
       System.out.println("尝试连接到....host:" + host + ",username:" + userName + ",password:" + password + ",port:"
                + port);
        JSch jsch = new JSch(); // 创建JSch对象
        session = jsch.getSession(userName,host,port); // 根据用户名，主机ip，端口获取一个Session对象
        session.setPassword(password); // 设置密码
        Properties config = new Properties();
        config.put("StrictHostKeyChecking","no");
        session.setConfig(config); // 为Session对象设置properties
        session.setTimeout(timeout); // 设置timeout时间
        session.connect(); // 通过Session建立链接
    }

    /**
     * 在远程服务器上执行命令
     * @param cmd 要执行的命令字符串
     * @param charset 编码
     * @throws Exception
     */
    public static void runCmd(String cmd,String charset) throws Exception{
        channelExec = (ChannelExec) session.openChannel("exec");
        channelExec.setCommand(cmd);
        channelExec.setInputStream(null);
        channelExec.setErrStream(System.err);
        channelExec.connect();
        InputStream in = channelExec.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in,Charset.forName(charset)));
        String buf = null;
        while ((buf = reader.readLine()) != null){
            System.out.println(buf);
        }
        reader.close();
        channelExec.disconnect();
    }
}

需要类库jsch-0.1.54.jar 下载地址：http://www.jcraft.com/jsch/