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This article mainly introduces "how to integrate Filter in SpringBoot2". In daily operation, I believe many people have doubts about how to integrate Filter in SpringBoot2. Xiaobian consulted various materials and sorted out simple and easy operation methods. I hope to help you answer the doubts of "how to integrate Filter in SpringBoot2"! Next, please follow the small series to learn together!

First, define a Filter that intercepts URLs uniformly. The code is as follows:

public class UrlFilter implements Filter { private Logger log = LoggerFactory.getLogger(UrlFilter.class); @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletRequest httpServletRequest = (HttpServletRequest) request; String requestURI = httpServletRequest.getRequestURI(); StringBuffer requestURL = httpServletRequest.getRequestURL(); log.info("requestURI:" +requestURI+" "+"requestURL:"+requestURL); chain.doFilter(httpServletRequest, response); }}

Configure the SpringBoot filter chain class FilterRegistrationBean by javaConfig. The specific code is as follows:

@Configurationpublic class FilterConfig { @Bean public FilterRegistrationBean filterRegistration() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(new UrlFilter()); List urlList = new ArrayList(); urlList.add("/*"); registration.setUrlPatterns(urlList); registration.setName("UrlFilter"); registration.setOrder(1); return registration; }}

FilterRegistrationBean method description:

registration.setFilter(Filter filter): Sets our custom Filter object.

registration.setUrlPatterns(Collection urlPatterns): Sets the collection of URLs that the custom Filter needs to block.

registration.setName(String name): Sets a custom Filter name.

registration.setOrder(int order): Sets the custom Filter interception order.

test

Start SpirngBoot project and visit index.html under our project via the browser.

At this point, the study of "how to integrate Filter in SpringBoot2" is over, hoping to solve everyone's doubts. Theory and practice can better match to help you learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!

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