1 package com.cy.springannotation.interceptor; 2  3 import javax.servlet.http.HttpServletRequest; 4 import javax.servlet.http.HttpServletResponse; 5  6 import org.apache.log4j.Logger; 7 import org.springframework.web.servlet.HandlerInterceptor; 8 import org.springframework.web.servlet.ModelAndView; 9 /**10  * 拦截器11  * @author acer12  *13  */14 public class MyIntercetor implements HandlerInterceptor{15     private Logger log=Logger.getLogger(this.getClass());16 17     @Override18     public void afterCompletion(HttpServletRequest arg0,19             HttpServletResponse arg1, Object arg2, Exception arg3)20             throws Exception {21         log.info("1---afterCompletion方法-----DispatcherServlet完全处理完请求后被调用，往往执行一些资源清理动作");22     }23 24     @Override25     public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,26             Object arg2, ModelAndView arg3) throws Exception {27         log.info("1---postHandle方法----------Controller方法后");28     }29 30     @Override31     public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,32             Object arg2) throws Exception {33         log.info("1---preHandle方法-----------Controller方法前");34         //如返回为false的时候，拦截器可阻止方法的调用 ，默认返回false35 //        return false;36         return true;37     }38 39 }

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