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  • 从C#到Java(Spring拦截器HandlerInterceptor )

    Spring自带了一套拦截器HandlerInterceptor,类似AspNet中的Filter。

    public class ApiInterceptor implements HandlerInterceptor {
        //请求之前
        @Override
        public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
            System.out.println("进入拦截器");
            return true;
        }
        //请求时
        @Override
        public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
     
        }
        //请求完成
        @Override
        public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
     
        }
    }
    

     同时需要在配置类中重写addInterceptors方法

    @SpringBootConfiguration
    public class WebConfig extends WebMvcConfigurationSupport{
     
        @Override
        protected void addInterceptors(InterceptorRegistry registry) {
            super.addInterceptors(registry);
            registry.addInterceptor(new ApiInterceptor());
        }
    }
    

      

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  • 原文地址:https://www.cnblogs.com/LvJiaXuanBlogs/p/10710489.html
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