如何在java中为ssh连接设置密码

2019年7月21日 297次阅读

我想用
java代码连接我的unix服务器.首先它将连接到我的服务器位置.在里面,它将连接到我的服务器名称.但那时它会要求确认(是/否)和密码我不知道该怎么做？

这是我所做的代码.请帮我解决这个问题

public static void main (String args[]) {
    String user = "user";
    String password = "password";
    String host = "hostName";
    int port=22;

    //String remoteFile="/home/john/test.txt";
    //String yes="yes";

    try {
        JSch jsch = new JSch();
        Session session = jsch.getSession(user, host, port);
        session.setPassword(password);
        session.setConfig("StrictHostKeyChecking", "no");
        System.out.println("Establishing Connection...");
        session.connect();
        Channel channel = session.openChannel("exec");

        // After this it'll ask for confirmation and password
        ((ChannelExec)channel).setCommand("ssh myServerName");
        channel.connect();

        InputStream output = channel.getInputStream();

        System.out.println("aafter stream");
        int readByte = output.read();
        StringBuilder outputBuffer = new StringBuilder();
        while (readByte != 0xffffffff) {
            //System.out.println("read byte" + readByte);
            outputBuffer.append((char)readByte);
            readByte = output.read();
        }
        System.out.println(outputBuffer.toString());
        channel.disconnect();
    } catch (Exception e){
        System.err.print("error message" + e);
    }
}

最佳答案 您需要获取JSch安全通道的OutputStream并在其中插入密码.

Channel channel = session.openChannel("exec");
        ((ChannelExec) channel).setCommand("sudo -S -p '' " + command);
        channel.setInputStream(null);
        OutputStream out = channel.getOutputStream();
        ((ChannelExec) channel).setErrStream(System.err);
        InputStream in = channel.getInputStream();
        ((ChannelExec) channel).setPty(true);
        channel.connect();
        out.write((password + "\n").getBytes());
        out.flush();

完整的源代码：http://codeflex.co/java-run-sudo-command-on-remote-linux-host/

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