Revert "去掉跨域支持"

This reverts commit 0ee4addf.

src/main/java/com/zzsn/thinktank/config/WebConfig.java

@@ -65,12 +65,12 @@ public class WebConfig implements WebMvcConfigurer {
 
         WebMvcConfigurer.super.addInterceptors(registry);
     }
-//    @Override
-//    public void addCorsMappings(CorsRegistry registry){
-//        registry.addMapping("/**")
-//                .allowedOrigins("*")
-//                .allowedMethods("*")
-//                .allowedHeaders("*");
-//
-//    }
+    @Override
+    public void addCorsMappings(CorsRegistry registry){
+        registry.addMapping("/**")
+                .allowedOrigins("*")
+                .allowedMethods("*")
+                .allowedHeaders("*");
+
+    }
 }
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