修复了上架字段的非空注解

src/main/java/com/greenorange/promotion/model/dto/course/CourseQueryRequest.java

@@ -5,6 +5,8 @@ import com.greenorange.promotion.model.enums.CourseTypeEnum;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotNull;
+import jdk.jfr.BooleanFlag;
 import lombok.Data;
 import java.math.BigDecimal;
 
@@ -36,6 +38,7 @@ public class CourseQueryRequest extends PageRequest implements Serializable {
     /**
      * 是否上架(true:上架，false:下架)
      */
+    @NotNull
     @Schema(description = "是否上架(true:上架，false:下架)", example = "true")
     private Boolean isShelves;