过滤器和拦截器区别以及执行顺序图_压缩空气过滤器安装顺序

/** * @Author: xiaoshijiu * @Date: 2019/5/22 * @Description: 自定义过滤器 */
public class MyFilter extends HttpFilter { 
     
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException { 
     
        System.out.println("Filter----before");  
        chain.doFilter(request,response);
        System.out.println("Filter----after");
    }
}

/** * @Author: xiaoshijiu * @Date: 2019/5/22 * @Description: $value$ */
public class MyInterception implements HandlerInterceptor { 
       
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
            Object handler) throws Exception { 
       
        System.out.println("Interception----before");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception { 
       
        System.out.println("Interception----before2");
    }

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

/** * @Author xiaoshijiu * @Description 自定义Mvc配置，实现全面接管SpringMvc的配置 * @Date 2019/5/13 */
@Configuration
public class MyWebMvc implements WebMvcConfigurer { 
       
    /** * 注册自定义的filter 就相当于在普通web工程中，在web.xml中注册的<filter></filter> */
    @Bean
    public FilterRegistrationBean myFilter() { 
       
        return new FilterRegistrationBean(new MyFilter());
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) { 
       
        // 添加自定义的拦截器
        registry.addInterceptor(new MyInterception()).addPathPatterns("/hello");
    }
}

/** * @Author: xiaoshijiu * @Date: 2019/5/22 * @Description: 测试Controller */
@RestController
public class Mycontroller { 
       

    @RequestMapping("hello")
    public String hello() { 
       
        System.out.println("hello...来了");
        return "hello";
    }
}

		HttpServletRequest servletRequest = (HttpServletRequest) request;
        System.out.println(servletRequest.getRequestURI());