课程分类代码优化

src/main/java/xyz/playedu/api/request/backend/CourseCategoryRequest.java

@@ -1,6 +1,7 @@
 package xyz.playedu.api.request.backend;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 import org.hibernate.validator.constraints.Length;
@@ -17,15 +18,16 @@ public class CourseCategoryRequest implements Serializable {
     @Serial
     private static final long serialVersionUID = 1L;
 
-    @NotNull(message = "请输入分类名")
+    @NotNull(message = "name参数不存在")
+    @NotBlank(message = "请输入分类名")
     @Length(min = 1, max = 20, message = "分类名长度在1-20个字符之间")
     private String name;
 
     @JsonProperty("parent_id")
-    @NotNull(message = "请选择上级分类")
+    @NotNull(message = "parent_id参数不存在")
     private Integer parentId;
 
-    @NotNull(message = "请输入排序值")
+    @NotNull(message = "sort参数不存在")
     private Integer sort;
 
 }