multiple markers at this line

package com.hzzykj.jcfz.web;



import java.sql.Timestamp;

import java.util.ArrayList;

import java.util.List;



import javax.servlet.ServletRequestEvent;

import javax.servlet.ServletRequestListener;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpSessionEvent;



import org.springframework.security.core.Authentication;

import org.springframework.security.core.context.SecurityContextHolder;

import org.springframework.security.core.userdetails.User;

import org.springframework.security.web.session.HttpSessionEventPublisher;



/**

 * 扩展的HttpSessionEventPublisher 支持在线人数统计

 * 

 */

public class EnhancedHttpSessionEventPublisher extends

                     HttpSessionEventPublisher implements ServletRequestListener {

 

	private static int activeSessions = 0;

    private HttpServletRequest request;

	public static List<String> OnlineUserList = new ArrayList<String>();

	

	@Override

	public void sessionCreated(HttpSessionEvent event) {

		// 将用户加入到在线用户列表中

//		Object name = event.getSession().getAttributeNames();

//		saveOrDeleteOnlineUser(event, Type.SAVE);

		String sessionId = event.getSession().getId();

        Timestamp createTime = new Timestamp(System.currentTimeMillis());

        String loginIp = request.getRemoteAddr();

        boolean rs = true;

        if(OnlineUserList.size() > 0){

            for(int i = 0;i < OnlineUserList.size(); i ++){

                if(loginIp.equals(OnlineUserList.get(i))){

                    rs = false;

                }

            }

        }

        if(rs){                      //如果队列中存在相同的IP 则SESSION不增加

        	OnlineUserList.add(loginIp);

            System.out.println("ipList队列新增ip: "+loginIp);

            activeSessions++;

            System.out.println("新增SESSION,sessionId = " + sessionId +"; createTime = " + createTime

                             + "; loginIp = " + loginIp +"; 当前总SESSION值为 "+activeSessions);

        }

		super.sessionCreated(event);

	}



	@Override

	public void sessionDestroyed(HttpSessionEvent event) {

		// 将用户从在线用户列表中移除

//		saveOrDeleteOnlineUser(event, Type.DELETE);

		String sessionId = event.getSession().getId();

        Timestamp overTime = new Timestamp(System.currentTimeMillis());

        String loginIp = request.getRemoteAddr();

        if(activeSessions>0){

            if(OnlineUserList.size() > 0){

                for(int i = 0;i < OnlineUserList.size(); i ++){

                    if(loginIp.equals(OnlineUserList.get(i))){

                    	OnlineUserList.remove(i);   

                        System.out.println("ipList队列移除ip: "+loginIp);

                    }

                }

            }

            activeSessions--;                   //在用户销毁的时候,从队列中踢出这个IP

            System.out.println("销毁SESSION,sessionId = " + sessionId +"; overTime = " + overTime

                             + "; loginIp = " + loginIp +"; 当前总SESSION值为 "+activeSessions);

        }

		super.sessionDestroyed(event);

	}



	public void saveOrDeleteOnlineUser(HttpSessionEvent event, Type type) {

		Authentication auth = SecurityContextHolder.getContext()

				.getAuthentication();

		event.getSession();

		if (auth != null) {

			Object principal = auth.getPrincipal();

			if (principal instanceof User) {

				User user = (User) principal;

				switch (type) {

				case SAVE:

					System.out.println("创建用户"+user.getUsername());

					OnlineUserList.add(user.getUsername());

					break;

				case DELETE:

					System.out.println("删除用户"+user.getUsername());

					OnlineUserList.remove(user.getUsername());

					break;

				}

			}

		}

	}



	public void requestDestroyed(ServletRequestEvent rre) {

		// TODO Auto-generated method stub

		

	}



	public void requestInitialized(ServletRequestEvent rre) {

		// TODO Auto-generated method stub

		request=(HttpServletRequest)rre.getServletRequest();

	}



	/**

	 * 定义一个简单的内部枚举

	 */

	private static enum Type {

		SAVE, DELETE;

	}

补充：Java ,  Eclipse

上一个：求教 关于字符串 equals 问题
下一个：如何让这段JS 返回到 input 文本域里！