一、使用注解
1. 假設Filter類的路徑為com.sanro.filter

@Slf4j @WebFilter(filterName = "authFilter", urlPatterns = "/*") @Order(1) //測試好像這個參數不生效，實際生效的是Filter掃描到的順序（所以起名很重要） public class AuthFilter implements Filter {@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {log.debug("start to auth request validate...111");HttpServletRequest req = (HttpServletRequest) request;String token = req.getHeader("token");if (token != null) {// :TODO check tokenlog.info("auth success");chain.doFilter(request, response);} else {log.err("auth failed");}} }

2. 自動掃描配置如下

@Slf4j @EnableScheduling @ServletComponentScan(basePackages = {"com.sanro.filter"}) //這一句完成了配置，Springboot的”懶理念“真的厲害。 @SpringBootApplication public class Application {public static void main(String[] args) {SpringApplication.run(Application.class, args);log.debug("rest server start success.");} }

二、手動配置

1. Filter類

@Slf4j @Component public class AuthFilter implements Filter {@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {log.debug("start to auth request validate...111");HttpServletRequest req = (HttpServletRequest) request;String token = req.getHeader("token");if (token != null) {// :TODO check tokenlog.info("auth success");chain.doFilter(request, response);} else {log.err("auth failed");}} }

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2. Filter配置類

@Configuration public class FilterConfig {@Autowiredprivate AuthFilter authFilter;@Beanpublic FilterRegistrationBean registerAuthFilter() {FilterRegistrationBean registration = new FilterRegistrationBean();registration.setFilter(authFilter);registration.addUrlPatterns("/*");registration.setName("authFilter");registration.setOrder(1); //值越小，Filter越靠前。return registration;}//如果有多個Filter，再寫一個public FilterRegistrationBean registerOtherFilter(){...}即可。 }

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轉載于:https://www.cnblogs.com/yoyotl/p/10853499.html

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