Java通过SSH连接路由器输入命令并读取响应的操作方法

<dependencies>
    <dependency>
        <groupId>com.github.mwiede</groupId>
        <artifactId>jsch</artifactId>
        <version>0.2.15</version>
    </dependency>
</dependencies>

dependencies {
    implementation 'com.github.mwiede:jsch:0.2.15'
}

/** 
*  获取SSH命令响应
* @param userName        用户名
* @param password        密码
* @param host              ip地址
* @param port              端口
* @param commandList  命令列表
*/
public String getShellCmdRes(String userName, String password, String host, Integer port, List<String> commandList) throws JSchException, IOException {
        StringBuilder stringBuilder = new StringBuilder();
        JSch jsch = new JSch();
        Session session = jsch.getSession(userName, host, port());
        session.setPassword(password);
        session.setConfig("StrictHostKeyChecking", "no");
        session.connect();
        ChannelShell channel = (ChannelShell) session.openChannel("shell");
        // 获取输入输出流
        OutputStream inputStreamForTheChannel = channel.getOutputStream();
        InputStream outputStreamForTheChannel = channel.getInputStream();
        // 连接通道
        channel.connect();
        PrintStream commander = new PrintStream(inputStreamForTheChannel, true);
        byte[] tmp = new byte[1024];
        while (true) {
            while (outputStreamForTheChannel.available() > 0) {
                int i = outputStreamForTheChannel.read(tmp, 0, 1024);
                if (i < 0) {
                    break;
                }
                String output = new String(tmp, 0, i);
                // 读取响应
                stringBuilder.append(output);
                stringBuilder.append(System.lineSeparator());
                // 发送命令
                commandList.forEach(command -> {
                    commander.println(command);
                });
            }
            if (channel.isClosed()) {
                if (outputStreamForTheChannel.available() > 0) {
                    continue;
                }
                break;
            }
            try {
                Thread.sleep(10);
            } catch (Exception ee) {
            }
        }
        // 关闭通道和会话
        channel.disconnect();
        session.disconnect();
        return stringBuilder.toString();
    }

List<String> commandList = new  ArrayList<>();
// 查看
commandList.add("display bfd session all");
// 退出会话
commandList.add("quit");
// 获取响应
String response = getShellCmdRes("admin", "admin", "1.1.1.1", 22, List<String> commandList)

List<String> commandList = new ArrayList<>();
// 进入system-view
commandList.add("system-view");
// 进入Tunnel 0/0/5
commandList.add("interface Tunnel 0/0/5");
// 查看信息
commandList.add("display this");
// 退出Tunnel 0/0/5
commandList.add("quit");
// 退出system-view
commandList.add("quit");
// 退出会话
commandList.add("quit");
// 获取响应
String response = getShellCmdRes("admin", "admin", "1.1.1.1", 22, List<String> commandList)