Java 如何检查过滤器是否工作？-测试过滤器

我有一个过滤器：

@WebFilter(urlPatterns = "/Mvc02")
public class Filter02 implements Filter {
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        some code...
    }

    public void init(FilterConfig config) throws ServletException {

    }
}

和servlet：

@WebServlet(name = "Mvc02", urlPatterns = "/Mvc02")
public class Mvc02 extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        some code...
    }
}

---

当我进入浏览器并键入http://localhost:8080/servletjee_war_exploded/Mvc02 它给了我servlet。它不应该先给我过滤器吗？如何运行筛选器？

如果希望筛选器仅应用于某些URL模式（如果使用spring），则必须使用FilterRegistrationBean注册筛选器

@Bean
public FilterRegistrationBean<Filter02> loggingFilter(){
    FilterRegistrationBean<Filter02> registrationBean 
      = new FilterRegistrationBean<>();
        
    registrationBean.setFilter(new Filter02());
    registrationBean.addUrlPatterns("/Mvc02");
        
    return registrationBean;    
}

@Bean
公共过滤器注册Bean loggingFilter（）{
FilterRegistrationBean注册Bean
=新的FilterRegistrationBean（）；
setFilter（newfilter02（））；
registrationBean.addUrlPatterns（“/Mvc02”）；
返回注册bean；
}