[Linux][Fedora 11]Java的socket，使用writeObject/readObject

Server端：

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.*;

/**
* Socket服务端程序
*
* @author zJun
*
*/
public class Server {

private ServerSocket server;

private Socket socket;

ObjectOutputStream objOut = null;//for object I/O

public Server() {
try {
// 在端口5000建立服务
server = new ServerSocket( 5000 );

System.out.println( " 服务创建. " );
System.out.println( " 等待客户端连接 " );

socket = server.accept();

System.out.println( " 客户端已连接.\n关闭! " );

objOut = new ObjectOutputStream(socket.getOutputStream());
objOut.writeObject("Hello");

objOut.close();
server.close();
} catch (IOException e) {
e.printStackTrace();
System.exit( 1 );
}
}

public static void main(String args[]) {
Server game = new Server();
}

}
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client端：
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.io.*;

public class Client {

private Socket client;

ObjectInputStream objIn = null;//for Object I/O
String today = null;//for Object I/O

public Client(String server, int port) {
try {
// 连接服务
client = new Socket(InetAddress.getByName(server), port);
// 从服务器读取信息
objIn = new ObjectInputStream(client.getInputStream());
today = (String)objIn.readObject();
System.out.println(today);
objIn.close();
// 关闭连接
client.close();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
}
public static void main(String[] args) {
Client client = new Client( "140.113.216.171" , 5000 );
}
}

最後在server端java Server
會看到訊息
服务创建.
等待客户端连接
客户端已连接.
然後
在client端java Client
會看到訊息
Hello
Server端就會結束
並且印出訊息
关闭!