IntelliJ IDEA 2017版 spring-boot搭建拦截器

1、建立一个springboot-web项目

https://www.cnblogs.com/liuyangfirst/p/8298588.html

2、加入过滤接口

 public class LoginInterceptor implements HandlerInterceptor {

     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

         System.out.println("已经进入了登录拦截器......");

         // 逻辑代码按照之前的方式去编写即可

         return true;
     }

     @Override
     public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

     }

     @Override
     public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

     }
 }

3、配置识别类

 // 当前类变成配置拦截器类
 @Configuration
 public class WebConfig extends WebMvcConfigurerAdapter {

     @Override
     public void addInterceptors(InterceptorRegistry registry) {

         // 需要拦截的路径
         String[] addPathPatterns = {"/test/**"};

         //不拦截的路径
         String[] excludePathPatterns = {"/index", "/myjsp"};

 //        注册登录拦截器(此拦截器注册多行就是,添加多个拦截器)
         registry.addInterceptor(new LoginInterceptor())
                 .addPathPatterns(addPathPatterns).
                 excludePathPatterns(excludePathPatterns);
     }
 }

4、源码位置

https://github.com/liushaoye/05-filter/tree/master