java tcp服务端客户端通信
发布日期:2013-06-24 09:27:28
package org.kodejava.example.net;import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.ClassNotFoundException;
import java.lang.Runnable;
import java.lang.Thread;
import java.net.ServerSocket;
import java.net.Socket;
public class ServerSocketExample {
private ServerSocket server;
private int port = 7777;
public ServerSocketExample() {
try {
server = new ServerSocket(port);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
ServerSocketExample example = new ServerSocketExample();
example.handleConnection();
}
public void handleConnection() {
System.out.println("Waiting for client message...");
//
// The server do a loop here to accept all connection initiated by the
// client application.
//
while (true) {
try {
Socket socket = server.accept();
new ConnectionHandler(socket);
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
class ConnectionHandler implements Runnable {
private Socket socket;
public ConnectionHandler(Socket socket) {
this.socket = socket;
Thread t = new Thread(this);
t.start();
}
public void run() {
try
{
//
// Read a message sent by client application
//
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
String message = (String) ois.readObject();
System.out.println("Message Received: " + message);
//
// Send a response information to the client application
//
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("Hi...");
ois.close();
oos.close();
socket.close();
System.out.println("Waiting for client message...");
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
package org.kodejava.example.net;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.ClassNotFoundException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
public class ClientSocketExample {
public static void main(String[] args) {
try {
//
// Create a connection to the server socket on the server application
//
InetAddress host = InetAddress.getLocalHost();
Socket socket = new Socket(host.getHostName(), 7777);
//
// Send a message to the client application
//
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("Hello There...");
//
// Read and display the response message sent by server application
//
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
String message = (String) ois.readObject();
System.out.println("Message: " + message);
ois.close();
oos.close();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}