跨域配置调试

src/main/java/com/zzsn/event/config/CorsConfig.java

 package com.zzsn.event.config;
 
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.cors.reactive.CorsWebFilter;
 import org.springframework.web.filter.CorsFilter;
 
 /**
@@ -12,9 +14,10 @@ import org.springframework.web.filter.CorsFilter;
  * Date: 2024/1/10
  */
 //注册到nacos通过网关访问时，不能在此处处理跨域问题，会导致返回多个Access-Control-Allow-*头
-//@Configuration
+@Configuration
 public class CorsConfig {
     @Bean
+    @ConditionalOnMissingBean(CorsWebFilter.class) // 当网关没有配置CORS时生效
     public CorsFilter corsFilter() {
         UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
         CorsConfiguration config = new CorsConfiguration();