java连接linux

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本地调用

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public static void main(String[] args){

    Process proc = RunTime.getRunTime().exec("cd /home/winnie; ls;")

 

    // 标准输入流（必须写在 waitFor 之前）

    String inStr = consumeInputStream(proc.getInputStream());

    // 标准错误流（必须写在 waitFor 之前）

    String errStr = consumeInputStream(proc.getErrorStream());

 

    int retCode = proc.waitFor();

    if(retCode == 0){

        System.out.println("程序正常执行结束");

    }

}

 

/**

*   消费inputstream，并返回

*/

public static String consumeInputStream(InputStream is){

    BufferedReader br = new BufferedReader(new InputStreamReader(is));

    String s ;

    StringBuilder sb = new StringBuilder();

    while((s=br.readLine())!=null){

        System.out.println(s);

        sb.append(s);

    }

    return sb.toString();

}

　　

 

远程调用（一）
导入ganymed-ssh2包

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import ch.ethz.ssh2.Connection;

import ch.ethz.ssh2.Session;

 

public static void main(String[] args){

    String host = "210.38.162.181";

    int port = 22;

    String username = "root";

    String password = "root";

    // 创建连接

    Connection conn = new Connection(host, port);

    // 启动连接

    conn.connection();

    // 验证用户密码

    conn.authenticateWithPassword(username, password);

    Session session = conn.openSession();

    session.execCommand("cd /home/winnie; ls;");

     

    // 消费所有输入流

    String inStr = consumeInputStream(session.getStdout());

    String errStr = consumeInputStream(session.getStderr());

     

    session.close;

    conn.close();

}

 

/**

*   消费inputstream，并返回

*/

public static String consumeInputStream(InputStream is){

    BufferedReader br = new BufferedReader(new InputStreamReader(is));

    String s ;

    StringBuilder sb = new StringBuilder();

    while((s=br.readLine())!=null){

        //System.out.println(s);

        sb.append(s).append("\n");

    }

    return sb.toString();

}

　　

远程调用（二）
使用jsch实现

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import com.jcraft.jsch.JSch;

import com.jcraft.jsch.Session;

 

public static void main(String[] args){

    String host = "210.38.162.181";

    int port = 22;

    String username = "root";

    String password = "root";

    // 创建JSch

    JSch jSch = new JSch();

    // 获取session

    Session session = jSch.getSession(username, host, port);

    session.setPassword(password);

    Properties prop = new Properties();

    prop.put("StrictHostKeyChecking", "no");

    session.setProperties(prop);

    // 启动连接

    session.connect();

    ChannelExec exec = (ChannelExec)session.openChannel("exec");

    exec.setCommand("cd /home/winnie; ls;");

    exec.setInputStream(null);

    exec.setErrStream(System.err);

    exec.connect();

    

    // 消费所有输入流，必须在exec之后

    String inStr = consumeInputStream(exec.getInputStream());

    String errStr = consumeInputStream(exec.getErrStream());

     

    exec.disconnect();

    session.disconnect();

}

 

/**

*   消费inputstream，并返回

*/

public static String consumeInputStream(InputStream is){

    BufferedReader br = new BufferedReader(new InputStreamReader(is));

    String s ;

    StringBuilder sb = new StringBuilder();

    while((s=br.readLine())!=null){

        System.out.println(s);

        sb.append(s).append("\n");

    }

    return sb.toString();

}

　　

 前端页面展示换行需添加样式

.content{

white-space: pre-wrap;

}