完成了第一版

src/main/java/com/greenorange/promotion/model/dto/userInfo/UserInfoAddRequest.java

@@ -4,6 +4,7 @@ import com.greenorange.promotion.annotation.UserEnumValue;
 import com.greenorange.promotion.model.enums.UserRoleEnum;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Pattern;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 
@@ -58,7 +59,7 @@ public class UserInfoAddRequest implements Serializable {
     /**
      * 用户角色
      */
-    @UserEnumValue(enumClass = UserRoleEnum.class)
+    @Pattern(regexp = "admin", message = "用户角色只能为 admin")
     @Schema(description = "用户角色", example = "user")
     private String userRole;