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：

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);
  }
}

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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<String> urlList = new ArrayList<String>();
    urlList.add("/*");
    registration.setUrlPatterns(urlList);
    registration.setName("UrlFilter");
    registration.setOrder(1);
    return registration;
  }
}

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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。

怎么在SpringBoot2中整合Filter-LMLPHP

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