獲取SpringMVC中所有RequestMapping映射URL信息

SpringMVC啟動的時候，會把接口信息收集在RequestMappingHandlerMapping中，故可以通過這個類，拿到全部的映射信息，Sample代碼段如下：

@Autowired
private ApplicationContext applicationContext;



Set<String> noLoginUrlSet = new HashSet<>();
RequestMappingHandlerMapping mapping = applicationContext.getBean(RequestMappingHandlerMapping.class);
Map<RequestMappingInfo, HandlerMethod> handlerMethods = mapping.getHandlerMethods();// 就是這個
for (RequestMappingInfo rmi : handlerMethods.keySet()) {
   HandlerMethod handlerMethod = handlerMethods.get(rmi);
   if (handlerMethod.hasMethodAnnotation(NoLogin.class)) {
      PatternsRequestCondition prc = rmi.getPatternsCondition();
      Set<String> patterns = prc.getPatterns();
      noLoginUrlSet.addAll(patterns);
   }
}