使用Filter实现访问监控

实现Servlet的接口过滤器接口Filter实现对用户访问页面的监控

import java.io.IOException;
import java.util.Date;
import java.util.Map;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
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.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.csair.amp.web.webinf.common.model.LoginInfo;
import com.csair.amp.web.webinf.utils.ReadPropertiesUtils;
import com.csair.smms.effmonitor.dto.MonitorLog;
import com.csair.smms.effmonitor.service.MonitorService;

/**
 * 效能监控过滤器类
 * 
 * @author ahomeeye
 * 
 *         2012-7-15 下午9:20:49
 */
public class EffMonitorFilter implements Filter {

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {

		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse res = (HttpServletResponse) response;
		HttpSession session = req.getSession();

		String orginPath = req.getRequestURL().toString();
		int index = orginPath.indexOf("/", 8);
		String reqPath = orginPath.substring(index);

		LoginInfo u = (LoginInfo) session.getAttribute("user");
		if (u != null) {

	        // 获取monitorService实现bean，此处无法使用spring的自动封装功能，monitorService
			ApplicationContext ac = WebApplicationContextUtils
					.getWebApplicationContext(session.getServletContext());
			MonitorService monitorService = (MonitorService) ac
					.getBean("monitorService");

            //ReadPropertiesUtils请参考http://ahomeeye.iteye.com/admin/blogs/1533760
			Map<String, String> urlMap = ReadPropertiesUtils
					.getPropMap("effmonitor.properties");
			if (urlMap.containsKey(reqPath)) { // 在监控的url包含有
				MonitorLog m = new MonitorLog();
				m.setUsername(u.getUsername());
				m.setLogtime(new Date());
				m.setFunction(urlMap.get(reqPath));
				m.setClassName(reqPath);
				m.setMethodName(urlMap.get(reqPath));
				monitorService.insertMonitorLog(m);// 保存效能监控日志
			}
		}
		chain.doFilter(req, res);
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {

	}

	@Override
	public void destroy() {

	}

}

JavaBean类:

package com.csair.smms.effmonitor.dto;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

/**
 * 监控日志实体
 * 
 * @author ahomeeye
 * 
 *         2012-7-11 下午7:22:49
 */
@Entity
@Table(name = "MONITOR_LOG")
public class MonitorLog implements Serializable {
	private static final long serialVersionUID = 7707875472196483005L;
	private int id;// 编号
	private String username;// 用户名
	private Date logtime;// 使用时间
	private String function;// 使用功能
	private String className;// 类名
	private String methodName;// 方法名

	public MonitorLog() {
		super();
	}

	public MonitorLog(int id, String username, Date logtime, String function,
			String className, String methodName) {
		super();
		this.id = id;
		this.username = username;
		this.logtime = logtime;
		this.function = function;
		this.className = className;
		this.methodName = methodName;
	}

	@Id
	@SequenceGenerator(name = "monitor", sequenceName = "seq_monitorlog", allocationSize = 1)
	@GeneratedValue(strategy = GenerationType.AUTO, generator = "monitor")
	@Column(name = "LOG_ID")
	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	@Column(name = "USERNAME", length = 20)
	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	@Column(name = "LOG_TIME")
	@Temporal(TemporalType.TIMESTAMP)
	public Date getLogtime() {
		return logtime;
	}

	public void setLogtime(Date logtime) {
		this.logtime = logtime;
	}

	@Column(name = "FUNCTION", length = 20)
	public String getFunction() {
		return function;
	}

	public void setFunction(String function) {
		this.function = function;
	}

	@Column(name = "CLASS_NAME", length = 100)
	public String getClassName() {
		return className;
	}

	public void setClassName(String className) {
		this.className = className;
	}

	@Column(name = "METHOD_NAME", length = 30)
	public String getMethodName() {
		return methodName;
	}

	public void setMethodName(String methodName) {
		this.methodName = methodName;
	}

	@Override
	public String toString() {
		return "MonitorLog [id=" + id + ", username=" + username + ", logtime="
				+ logtime + ", function=" + function + ", className="
				+ className + ", methodName=" + methodName + "]";
	}

}