java socket

public void dotest()
    {
     SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
     Socket socket = null;
     String ip = "10.243.215.139";
     //String ip = "127.0.0.1";
     int port = 7101;
     //int port = 8080;
     
     for(;true;) {
      try {
       socket = new Socket(ip, port);
       String string="socket连接ip:"+ ip+",端口:"+port+",成功：time:" + formatDate.format(new Date()) + " " + socket.isConnected();
          System.out.println(string);
          LogUtil.sokecttest(string);
          socket.close();
          Thread.sleep(10000);
   } catch (Exception e) {
    String s1="socket连接ip:"+ ip+",端口:"+port+",错误：" + formatDate.format(new Date()) + " " + e.toString();
    System.out.println(s1);
    LogUtil.sokecttest(s1);
   }
      
     }
    }