refactor: nacos配置错误提示语优化

youlai-gateway/src/main/java/com/youlai/gateway/security/ResourceServerConfig.java

@@ -56,7 +56,7 @@ public class ResourceServerConfig {
     public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
 
         if (ignoreUrls == null) {
-            log.error("网关白名单路径读取失败，Nacos 配置读取失败，请检查相关配置！！！");
+            log.error("网关白名单路径读取失败：Nacos配置读取失败，请检查配置中心连接是否正确！");
         }
 
         http

youlai-gateway/src/main/java/com/youlai/gateway/util/ResponseUtils.java

@@ -35,8 +35,8 @@ public class ResponseUtils {
                 break;
         }
         response.getHeaders().set(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE);
-        response.getHeaders().set("Access-Control-Allow-Origin", "*");
-        response.getHeaders().set("Cache-Control", "no-cache");
+        response.getHeaders().set(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN, "*");
+        response.getHeaders().set(HttpHeaders.CACHE_CONTROL, "no-cache");
         String body = JSONUtil.toJsonStr(Result.failed(resultCode));
         DataBuffer buffer = response.bufferFactory().wrap(body.getBytes(StandardCharsets.UTF_8));
         return response.writeWith(Mono.just(buffer))