(1)当前过滤器类上要加两个注解 @Component @WebFilter(filterName="一般写类名",urlPatterns="/*") (2)启动类上要加多一个注解 @ServletComponentScan 相关文章: 2022-12-23 2021-08-29 2021-07-24 2022-12-23 2022-12-23 2022-12-23 2021-11-02 2021-09-25