TCP程序练习

服务端程序

package tcp; import java.net.*; import java.io.*; public class TcpServer { public static void main(String [] args) { try { ServerSocket ss=new ServerSocket(8001); Socket s=ss.accept(); InputStream ips=s.getInputStream(); OutputStream ops=s.getOutputStream(); ops.write("welcome to www.it315.org!".getBytes()); byte [] buf = new byte[1024]; int len = ips.read(buf); System.out.println(new String(buf,0,len)); ips.close(); ops.close(); s.close(); ss.close(); }catch(Exception e){e.printStackTrace();} } }

 

执行

F:/test/t9/bin>java tcp.TcpServer

 

另开一个窗口

 

C:/Documents and Settings/sun>telnet 127.0.0.1 8001

 

 

运行结果

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F:/test/t9/bin>java tcp.TcpServer
h

F:/test/t9/bin>

 

--------------

welcome to www.it315.org!h

失去了跟主机的连接。

C:/Documents and Settings/sun>

 

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服务程序收到1个字符