11.拦截器
- 只会拦截controller的请求，对于静态资源不处理
被spring代理的拦截器实现只需要两步：
1.实现一个拦截器类
package com.spring.config;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author panglili
* @create 2022-07-26-13:43
*/
//继承一个拦截器
public class MyInterceptor implements HandlerInterceptor {
//true 放行
//false 不放行
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("处理前-------------");
return true;
}
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("处理后-------------");
}
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("清理—--------------");
}
}
2.配置拦截器
Original: https://www.cnblogs.com/lumanmanqixiuyuanxi/p/16544580.html
Author: 路漫漫qixiuyuanxi
Title: [springmvc]拦截器功能
原创文章受到原创版权保护。转载请注明出处：https://www.johngo689.com/619553/
转载文章受原作者版权保护。转载请注明原作者出处！