08-三步学会java socket编程(2).htm

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			<div style="FONT-SIZE: 18pt; COLOR: #990000; FONT-FAMILY: 楷体_GB2312" align=center><B>Socket套接字</b></div><br><div style="COLOR: #990000; font-family: ; font-size: 18px;宋体;" align=center>三步学会Java Socket编程(2)</div>
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            <br>&nbsp;&nbsp;&nbsp;&nbsp;<P><STRONG><FONT color=#f70909>第二步　多个客户同时连接</FONT></STRONG><BR><BR>　　在实际的网络环境里，同一时间只对一个用户服务是不可行的。一个优秀的网络服务程序除了能处理用户的输入信息，还必须能够同时响应多个客户端的连接请求。在java中，实现以上功能特点是非常容易的。<BR><BR>　　设计原理：<BR><BR>　　主程序监听一端口，等待客户接入；同时构造一个线程类，准备接管会话。当一个Socket会话产生后，将这个会话交给线程处理，然后主程序继续监听。运用Thread类或Runnable接口来实现是不错的办法。<BR><BR>　　｛实现消息共享｝<BR></P>
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<TD>import java.io.*;<BR>import java.net.*;<BR><BR>public class Server extends ServerSocket<BR>{<BR>private static final int SERVER_PORT = 10000;<BR><BR>public Server() throws IOException<BR>{<BR>super(SERVER_PORT);<BR><BR>try<BR>{<BR>while (true)<BR>{<BR>Socket socket = accept();<BR>new CreateServerThread(socket);<BR>}<BR>}<BR>catch (IOException e)<BR>{}<BR>finally<BR>{<BR>close();<BR>}<BR>}<BR>//--- CreateServerThread<BR>class CreateServerThread extends Thread<BR>{<BR>private Socket client;<BR>private BufferedReader in;<BR>private PrintWriter out;<BR><BR>public CreateServerThread(Socket s) throws IOException<BR>{<BR>client = s;<BR><BR>in = new BufferedReader(new InputStreamReader(client.getInputStream(), "GB2312"));<BR>out = new PrintWriter(client.getOutputStream(), true);<BR>out.println("--- Welcome ---");<BR>start();<BR>}<BR><BR>public void run()<BR>{<BR>try<BR>{<BR>String line = in.readLine();<BR><BR>while (!line.equals("bye"))<BR>{<BR>String msg = createMessage(line);<BR>out.println(msg);<BR>line = in.readLine();<BR>}<BR>out.println("--- See you, bye! ---");<BR>client.close();<BR>}<BR>catch (IOException e)<BR>{}<BR>}<BR><BR>private String createMessage(String line)<BR>{<BR>xxxxxxxxx;<BR>}<BR>}<BR><BR>public static void main(String[] args) throws IOException<BR>{<BR>new Server();<BR>}<BR>}</TD></TR></TBODY></TABLE>
<P>　　这个程序监听10000端口，并将接入交给CreateServerThread线程运行。CreateServerThread线程接受输入，并将输入回应客户，直到客户输入"bye"，线程结束。我们可以在createMessage方法中，对输入进行处理，并产生结果，然后把结果返回给客户。</P><br><br>
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			<div align="center">来源：天极网 作者：<div>
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