package core.interceptor.type1;

/**
 * HelperInterceptor 说明： 拦截器类
 */
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * 继承HandlerInterceptor ，实现拦截器
 * 作用:	任何你想做的事情都可以在preHandle postHandle afterCompletion完成;如 在controller开始执行之前构建数据;并在controller执行完毕后释放数据.
 * 
 * @ClassName:HelperInterceptor.java
 * @Description:
 * @author:Live
 * @date:2016-9-6下午2:46:26
 */
public class SpecialInterceptor implements HandlerInterceptor {
	
	//pre
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		System.out.println("***SpecialInterceptor-preHandle(处理前)!");//此方法return-boolean,当return false是 postHandle 和 afterCompletion不执行! 
			
		//
		//System.out.println("***handler:	"+handler);
		//	System.out.println(handler.getClass()); //class module.controller.LoginController
		//
		return true;
	}
	
	//post
	public void postHandle(HttpServletRequest request, HttpServletResponse response,Object handler, ModelAndView mv) throws Exception {
		System.out.println("***SpecialInterceptor-postHandle(处理中)!");
		
		//showRequest(request);
		//showResponse(response);	
		//System.out.println(handler);
		//System.out.println(mv);
		
	}
	
	//after
	public void afterCompletion(HttpServletRequest request,HttpServletResponse response, Object handler, Exception ex) throws Exception {
		System.out.println("***SpecialInterceptor-afterCompletion(响应后)!");
		
		//showRequest(request);
		//showResponse(response);	
		//System.out.println(handler);
		//System.out.println(ex);
		
	}

}