Java中通过jsch来连接远程服务器执行linux命令

 public class CogradientImgFileManager{ private static final Logger log = LoggerFactory.getLogger(CogradientImgFileManager.class); 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("10.8.12.189","jmuser","root1234",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{ log.info("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(); } }