enable spring matrix variable support

WebConfig.java

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

  @Override
  public void configurePathMatch(PathMatchConfigurer configurer) {
    // enable matrix variable support
    if (configurer.getUrlPathHelper() == null) {
      UrlPathHelper urlPathHelper = new UrlPathHelper();
      urlPathHelper.setRemoveSemicolonContent(false);
      configurer.setUrlPathHelper(urlPathHelper);
    } else {
      configurer.getUrlPathHelper().setRemoveSemicolonContent(false);
    }
  }

}