怎么在SpringBoot2中整合Filter
首先定义一个统一访问URL拦截的Filter。代码如下:publicclassUrlFilterimplementsFilter{privateLoggerlog=LoggerFactory.getLogger(UrlFilter.class);@OverridepublicvoiddoFilter(ServletRequestrequest,ServletResponseresponse,FilterChainchain)throwsIOException,ServletException{HttpSe
首先定义一个统一访问 URL 拦截的 Filter。代码如下:
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);
}
}通过 javaConfig方式配置 SpringBoot 过滤链类 FilterRegistrationBean,具体代码如下:
@Configuration
public 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 中方法介绍:
registration.setFilter(Filter filter):设置我们自定义Filter对象。
registration.setUrlPatterns(Collection urlPatterns):设置自定义Filter需要拦截的URL的集合。
registration.setName(String name): 设置自定义Filter名称。
registration.setOrder(int order):设置自定义Filter拦截顺序。
测试
启动 SpirngBoot 项目并通过游览器访问我们的项目下的 index.html。


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