简略实用的Socket例子-服务端+客户端

/**服务端**/

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {

	public static final int PORT = 8080;
	public static void main(String[] args) throws IOException {
		ServerSocket server = new ServerSocket(PORT);
		System.out.println("Started " + server);
		try {
			Socket client = server.accept();
			try {
				System.out.println("Connection accepted: " + client);
				BufferedReader  reader = new BufferedReader(new InputStreamReader(client.getInputStream()));
				PrintWriter writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(client.getOutputStream())),true);
				while(true){
					String str = reader.readLine();
					if(str.equals("END"))break;
					System.out.println("Echoing:" + str);
					writer.println(str);
				}
			} finally{
				System.out.println("closing...");
				client.close();
			}
		} finally{
			server.close();
		}
		
	}
}

/**客户端**/

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

public class Client {
	public static void main(String[] args) throws IOException {
		InetAddress address = InetAddress.getByName(null);
		System.out.println("address:" + address);
		Socket client = new Socket(address,JobServer.PORT);
		try{
			System.out.println("socket:" + client);
			BufferedReader reader = new BufferedReader(new InputStreamReader(client.getInputStream()));
			PrintWriter writer = new PrintWriter(new BufferedOutputStream(client.getOutputStream()),true);
			for(int i = 0; i < 10 ; i++){
				writer.println("howdy " +  i);
				String str = reader.readLine();
				System.out.println(str);
			}
			writer.println("END");
		}finally{
			System.out.println("closing...");
			client.close();
		}
	}
}