ftpserverlistener.java

这个是java写的程序socket

package com.socket;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Calendar;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

/**
 * 文件传输服务器端，用于servlet容器
 *
 * @author java
 *
 */
public class FtpServerListener implements ServletContextListener {
	private static final int _serverPort = 6030;

	private ResourceBundle _config = null;

	private ServerSocket _server = null;

	private long _threadCount = 0;

	public void start() throws IOException {
		_server = new ServerSocket(_serverPort);
		try {
			_config = ResourceBundle.getBundle("ftpclient");
			System.out.println("[SYS] Ftp Server starting at "
					+ Calendar.getInstance().getTime().toString() + " as "
					+ _server.getInetAddress().getHostAddress() + ":"
					+ _server.getLocalPort() + ".");
			while (true) {
				_threadCount++;
				Socket _client = _server.accept();
				new FtpServerThread(_config, _client, Long
						.toString(_threadCount));
			}
		} catch (MissingResourceException e1) {
			System.out.println("[SYS] Cann't load file: ftpclient.properties.");
		} catch (IOException e2) {
			System.out.println("[SYS] Ftp Server start fail.");
			e2.printStackTrace();
		} finally {
			stop();
		}
	}

	public void stop() {
		try {
			if (_server != null) {
				_server.close();
			}
			System.out.println("[SYS] Ftp Server stoped at "
					+ Calendar.getInstance().getTime().toString() + ".");
		} catch (Exception e) {
			System.out.println("[SYS] Ftp Server stop fail.");
			e.printStackTrace();
		}
	}

	public void contextInitialized(ServletContextEvent event) {
		String logText = "[SYS] SMS reply listener start at "
				+ Calendar.getInstance().getTime().toString();
		event.getServletContext().log(logText);

		try {
			start();
		} catch (IOException e) {
			System.out.println("[SYS] Ftp Server start fail.");
		}
	}

	public void contextDestroyed(ServletContextEvent event) {
		String logText = "[SYS] SMS reply listener stop at "
				+ Calendar.getInstance().getTime().toString();
		event.getServletContext().log(logText);
		stop();
	}
}