HTTP Server之回声服务器

import java.io.IOException;

/**
 * Entry is HTTP Server entry, each socket create a thread
 * @author hui.wang
 *
 */
public class Entry {
	
	public static void main(String[] args){
		try{
			Server server = new Server(8080);
			server.run();
		} catch(IOException e) {
			System.err.println("Error binding the specified port.");
		}
	}

}

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


/**
 * Service support echo input to output
 * @author hui.wang
 *
 */
public class Service extends Thread {
	private Socket _socket;
	
	public Service(Socket socket) {
		_socket = socket;
	}
	
	public void run(){
		try{
			//Wrapper the InputStream to BufferedReader
			BufferedReader input = new BufferedReader(new InputStreamReader(_socket.getInputStream()));
			//Wrapper the OutputStream to BuffedWriter
			BufferedWriter output = new BufferedWriter(new OutputStreamWriter(_socket.getOutputStream()));
			String line = input.readLine();
			while( line != null ) {
				if(line.equals("quit"))
					return;
				output.write(line + "\r\n");
				output.flush();
				line = input.readLine();
			}
			input.close();
			output.close();
		} catch(IOException e){
			//Abandon the current connection
		} finally{
			try{
				//Close the connection.
				_socket.close();
			} catch(IOException e){
				//Eat the IOException
			}
		}
	}
	

}

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

/**
 * One server instance, create service to execute operation.
 * @author hui.wang
 *
 */
public class Server implements Runnable {

	private ServerSocket _server;

	public Server(int port) throws IOException {
		// This statement will throw out IOException
		// if the specified port is not available.
		_server = new ServerSocket(port);
	}

	public void run() {
		try {
			for (;;) {
				// Accept an incoming connection.
				Socket client = _server.accept();
				// Create a Service Thread to serve the client.
				Service service = new Service(client);
				service.start();
			}
		} catch (IOException e) {
			// Eat the IOException
		}

	}

	

}