Java 如何在Spring3MVC中创建一个触发过滤器的@CustomAnnotation注释？

我想在Spring 3 mvc中做@CustomFilter注释，如下所示：

@CustomFilter
@RequestMapping("/{id}")
public Account retrieve(@PathVariable Long id) {
    // ...
}

public class CustomFilter implements Filter {
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        HttpServletRequest request = (HttpServletRequest) req;
        .... 
        chain.doFilter(req, res);
    }
}

（假设升级到Spring 4受到限制）目前我必须对Spring 3执行的操作如下：

@CustomFilter
@RequestMapping("/{id}")
public Account retrieve(@PathVariable Long id) {
    // ...
}

public class CustomFilter implements Filter {
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        HttpServletRequest request = (HttpServletRequest) req;
        .... 
        chain.doFilter(req, res);
    }
}

---

我的问题是：如何在Spring3MVC中触发过滤器的@CustomAnnotation注释？

您必须理解的是，在Servlet规范中，过滤器和Servlet在Servlet之前调用两个明确的独立组件和过滤器

---

在您的情况下，您需要做的是拥有一个拦截器，如本文所述，您可以使用

创建标记注释：

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface CustomFilter {
}

创建一个

HandlerInterceptor

：

public class CustomFilterHandlerInterceptor extends HandlerInterceptorAdapter {

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

        if (handler instanceof HandlerMethod) {
            HandlerMethod handlerMethod = (HandlerMethod) handler;
            // Test if the controller-method is annotated with @CustomFilter
            CustomFilter filter = handlerMethod.getMethod().getAnnotation(CustomFilter.class);
            if (filter != null) {
                // ... do the filtering
            }
        }
        return true;
    }
}

注册拦截器：

<mvc:interceptors>
    <mvc:interceptor>
        <mvc:mapping path="/**" />
        <bean class="com.example.CustomFilterHandlerInterceptor" />
    </mvc:interceptor>
</mvc:interceptors>

---

Great-但是我可以在原始类上触发拦截器作为注释吗？否则，为拦截器类添加xml或为过滤器类添加xml的开销大致相同。