java下tcp的socket连接
serverDemo
package cn.stat.p4.ipdemo; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.ServerSocket; import java.net.Socket; public class serverDemo { /** * @param args * @throws IOException */ public static void main(String[] args) throws IOException { //创建服务器对像 ServerSocket ss=new ServerSocket(1000); //获取连接过来的客户端对像 Socket s=ss.accept(); String ip=s.getInetAddress().getHostAddress(); int port=s.getPort(); //通过socket对象获取输入流,要读取客户端发过来的数据 InputStream in=s.getInputStream(); byte[] buf=new byte[1024]; int len=in.read(buf); String text=new String(buf,0,len); System.out.println(ip+":"+port+":"+text); //使用客户端的socket对象传输数据回客户端 OutputStream out=s.getOutputStream(); out.write("收到".getBytes()); s.close(); ss.close(); } }
clentDemo
package cn.stat.p4.ipdemo; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.Socket; import java.net.UnknownHostException; public class clentDemo { /** * @param args * @throws IOException * @throws UnknownHostException */ public static void main(String[] args) throws UnknownHostException, IOException { //创建连接对像 Socket socket=new Socket("192.168.1.103",1000); //获取流对像 OutputStream out=socket.getOutputStream(); out.write("我又来了".getBytes()); //读取服务端返回数据 InputStream in=socket.getInputStream(); byte[] buf=new byte[1024]; int len=in.read(buf); String text=new String(buf,0,len); System.out.println(text); socket.close(); } }