1

src/main/java/com/example/demo/entity/Region.java

@@ -0,0 +1,18 @@
+package com.example.demo.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+@Entity
+@Data
+@com.fasterxml.jackson.annotation.JsonIdentityInfo(
+  generator = com.fasterxml.jackson.annotation.ObjectIdGenerators.PropertyGenerator.class, 
+  property = "id")
+public class Region {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String name;
+}