java项目中，每新建一次会话，访问量加1

1.在web.xml文件加入如下段代码，其中AccessCountListener.java是自己定义的监听器
<listener>
 <listener-class>com.cfets.imix.util.AccessCountListener</listener-class>
</listener>

3.在applicationContext-ioc.xml文件中添加如下段代码

<bean id="accessCountListener" class="com.cfets.imix.util.AccessCountListener">
  <property name="statisticsDataService" ref="statisticsDataService"></property>
 </bean>

 

2.每新建一次会话，访问量加1     【注：要实现HttpSessionListener接口】
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.cfets.imix.pojo.StatisticsData;
import com.cfets.imix.service.StatisticsDataService;

public class AccessCountListener implements HttpSessionListener{
 final Logger log = LoggerFactory.getLogger("AccessCountListener");
 private static int count;
 private StatisticsDataService statisticsDataService;
 private ApplicationContext appContext = null;
 
 public AccessCountListener(){
           count = 0;
 }
//每新建一次会话，就会调用一次此方法
  public void sessionCreated(HttpSessionEvent se) {
    count = count + 1;

    //如果配置文件没有加载，则重新获取
    if(appContext == null){
              HttpSession session = se.getSession();
              ServletContext servletCxt = session.getServletContext();
              appContext = WebApplicationContextUtils.getWebApplicationContext(servletCxt);
     }
     accessCount(appContext);
 }
 

//session被销毁时调用，在此不做任何操作
 public void sessionDestroyed(HttpSessionEvent arg0) {
 }

 public  void accessCount(ApplicationContext appContext){
  try{

   //获取配置文件中id为accessCountListener的bean
  AccessCountListener acl = 

                  (AccessCountListener) appContext.getBean("accessCountListener");
   StatisticsDataService statisticsDataService  =  acl.getStatisticsDataService();
 
   Date date = new Date();
   SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd");
   String todayDate = sdf1.format(date);
   
   int queryResult =  statisticsDataService.queryByDateAndName(todayDate, "访问量");
   if(queryResult == 0){
             StatisticsData sd = new StatisticsData();
             sd.setDate(todayDate);
             sd.setName("访问量");
             sd.setCount(1);
             statisticsDataService.saveStatisticsData(sd);
   }else if(queryResult == 1){
           int countByCon = statisticsDataService.queryCountByDateAndName(todayDate, "访问量");
           statisticsDataService.updateStatisticsData(todayDate, "访问量", countByCon+1);
            statisticsDataService.queryCountByDateAndName(todayDate, "访问量");
   }

 }catch(Exception e){
             log.error("统计访问量数据出错!", e);
 }

 }
 
 
 public StatisticsDataService getStatisticsDataService() {
  return statisticsDataService;
 }
 public void setStatisticsDataService(StatisticsDataService statisticsDataService) {
  this.statisticsDataService = statisticsDataService;
 }
 public static int getCount() {
  return count;
 }
 public static void setCount(int count) {
  AccessCountListener.count = count;
 }
}