Java代码建立TCP连接

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

public class TCPClientDemo {

/**
* @param args
* @throws IOException
* @throws UnknownHostException
*/
public static void main(String[] args) throws UnknownHostException, IOException {
// TODO Auto-generated method stub

//1.建立TCP连接  1）IP地址，2) 端口号
String ip="192.168.187.129";
int port=554;
Socket sck=new Socket(ip,port);

//2、传输内容
String content="这是一个JAVA模拟客户端-10000";
byte[] bstream=content.getBytes("GBK");//字节流，中文所以选择GBK
OutputStream os=sck.getOutputStream();
os.write(bstream);

//3、关闭TCP连接
sck.close();
}

}