package com.filter;

import java.io.IOException; import java.sql.Timestamp; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.UUID; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.log4j.Logger; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; import com.bean.LogBean; import com.service.LogService; public class LogFilter implements Filter { Logger logger = Logger.getLogger(LogFilter.class); @Autowired private LogService logService; public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { if (!(servletRequest instanceof HttpServletRequest) || !(servletResponse instanceof HttpServletResponse)) { throw new ServletException( "oncePerRequestFilter just supports HTTP requests"); } HttpServletRequest httpRequest = (HttpServletRequest) servletRequest; HttpSession session = httpRequest.getSession(); String ip = httpRequest.getRemoteAddr(); String page = httpRequest.getRequestURI(); String contextPath = httpRequest.getContextPath(); String servletPath = httpRequest.getServletPath(); logger.info("doFilter sessionId="+session.getId()+",ip="+ip+",page="+page+",contextPath="+contextPath+",servletPath="+servletPath); LogBean logBean = new LogBean(); logBean.setId(UUID.randomUUID().toString()); logBean.setSessionId(session.getId()); logBean.setIp(ip); logBean.setPage(page); logBean.setAccessTime(new Timestamp(new Date().getTime())); logBean.setStayTime(0); //通过session id 和 ip，查出最近的一条访问记录 LogBean bean = null; try { bean = logService.getLatestLog(session.getId(), ip); } catch (Exception e) { e.printStackTrace(); logger.error(e.getMessage()); } //更改最近访问记录的停留时间，这里把两次访问记录的间隔时间算成上一次页面访问的停留时间 if(bean != null){ long stayTime = (System.currentTimeMillis() - bean.getAccessTime().getTime())/1000; try { logService.updateLog(bean.getId(), stayTime); } catch (Exception e) { e.printStackTrace(); logger.error(e.getMessage()); } } //保存当前访问记录 try { logService.saveLog(logBean); } catch (Exception e) { e.printStackTrace(); logger.error(e.getMessage()); } //统计网站的PV（页面浏览量），UV（独立访客数） DateFormat df = new SimpleDateFormat("yyyy-MM-dd"); String format = df.format(new Date()); Date parse = null; try { parse = df.parse(format); } catch (ParseException e1) { e1.printStackTrace(); } Timestamp startTime = new Timestamp(parse.getTime()); Timestamp endTime = new Timestamp(parse.getTime() + 24*3600*1000); try { int pv = logService.getPV(startTime, endTime); int uv = logService.getUV(startTime, endTime); logger.info("pv="+pv); logger.info("uv="+uv); } catch (Exception e) { e.printStackTrace(); logger.error(e.getMessage()); } filterChain.doFilter(servletRequest, servletResponse); return; } public void init(FilterConfig filterConfig) throws ServletException { ServletContext context = filterConfig.getServletContext(); ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(context); logService = (LogService) ctx.getBean("logService"); logger.info("init"); } public void destroy() { }