(1) 对过滤器使用@Component注解或者在配置类中使用@Bean注解，但这种方式有个弊端就是拦截所有请求
（2）使用@WebFilter注解可以指定拦截url,但此方式也存在弊端多个过滤器无法指定优先级
（3）使用FilterRegistrationBean方式创建过滤器可以指定过滤器优先级
（1）、基于@Component 或者@Bean实现
@Component public class TestFilter implements Filter{ @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { System.out.println("过滤器111"); } @Override public void destroy() { } }
配置类中@Configuration
@Bean("myFilter1")
public Filter estFilter() {
return new TestFilter();
}
(2)、基于WebFilter(注意启动类要加@ServletComponentScan注解）
@WebFilter(filterName = "test1", urlPatterns = { "/page/*" })
public class TestFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
System.out.println("过滤器111");
}
@Override
public void destroy() {
}
}
（3）基于FilterRegistrationBean
@Bean public FilterRegistrationBean uploadFilterRegistration1() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(new DelegatingFilterProxy(new TestFilter())); registration.addUrlPatterns("/*"); registration.setName("MyFilter1"); registration.setOrder(5);//优先级数字越大优先级越小 return registration; }
原文：https://www.cnblogs.com/kjcc/p/13566727.html