Springboot中注册拦截器

NoviceZHB

于 2020-01-24 12:01:37 发布

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分类专栏： springboot

本文链接：https://blog.youkuaiyun.com/Sole_Memory/article/details/104079941

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本文介绍了如何在Springboot应用中创建并注册拦截器，通过实现HandlerInterceptor接口，并配置拦截路径，实现在每次请求前进行特定操作。示例代码展示了拦截所有URL的功能。

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public class MyInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("preHandle....");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("postHandle.....");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("afterCompletion.....");
    }
}

首先创建类实现HandlerInterceptor ，然后

@Configuration
public class MyMvcConfig implements WebMvcConfigurer {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(myInterceptor()).addPathPatterns("/**");
    }
    @Bean
    MyInterceptor myInterceptor(){
        return new MyInterceptor();
    }
}