SpringBoot 拦截器

最新推荐文章于 2025-02-11 16:50:38 发布

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本文详细介绍了如何在Spring MVC中使用WebMvcConfigurerAdapter来配置自定义拦截器，实现对特定路径的请求拦截，同时排除了如登录、首页及静态资源等不需要拦截的路径。

通过继承 WebMvcConfigurerAdapter来实现拦截

WebMvcConfig.java:

package com;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 
/**
 * 图片绝对地址与虚拟地址映射
 */
 
@Configuration
public class WebMvcConfig  extends WebMvcConfigurerAdapter {


    @Override
    public void addInterceptors(InterceptorRegistry  reg) {
    	String []  eclude=new String[]{"/","/login","/index.html","/css/**","/js/**","/images/**"};
        //excludePathPatterns 是不拦截的路径
     	reg.addInterceptor(new InterceptorConfig()).addPathPatterns("/**").excludePathPatterns(eclude);
    }
}

InterceptorConfig.java：

public class InterceptorConfig implements HandlerInterceptor{
	private final static Logger logger = LoggerFactory.getLogger(InterceptorConfig.class);
	 
	 @Override
	 public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse response, Object o) throws Exception {
         //在这里面进行逻辑判断,并且返回想要的地址
		 HttpSession session = httpServletRequest.getSession();
		 int interval = session.getMaxInactiveInterval();
		 boolean meg=false;
		 CuUser user = (CuUser)session.getAttribute("user");
		 if(user!=null) {
			 meg= true;
			 return  meg;
		 }else {
			 logger.info("session已超时,重新登录!");
			 response.sendRedirect("/");
		 }
		 return meg;
	 }
	 
	 @Override
	 public void  postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
		 
	 }
	 
	 @Override
	 public void  afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
		 
	 }
}