From abf472bcbbca85ad9bff08cb163faf7d40759672 Mon Sep 17 00:00:00 2001
From: yuejiajun <1530620364@qq.com>
Date: Tue, 30 Sep 2025 14:19:40 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=86=E9=A1=B5=E6=9F=A5=E8=AF=A2=E5=88=86?=
 =?UTF-8?q?=E9=A1=B5=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/example/demo/common/domain/BaseQueryDTO.java    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/com/example/demo/common/domain/BaseQueryDTO.java b/src/main/java/com/example/demo/common/domain/BaseQueryDTO.java
index d9b86fd..caca29f 100644
--- a/src/main/java/com/example/demo/common/domain/BaseQueryDTO.java
+++ b/src/main/java/com/example/demo/common/domain/BaseQueryDTO.java
@@ -1,6 +1,7 @@
 package com.example.demo.common.domain;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
 import lombok.*;
 import cn.zhxu.bs.bean.DbField;
 import lombok.experimental.Accessors;
@@ -61,4 +62,8 @@ public class BaseQueryDTO implements Serializable {
     @Schema(description = "排序方式")
     private String sortOrder;
 
+    @NotNull(message = "页码不能为空")
+    public int getPageNum() {
+        return (this.pageNum - 1) * pageSize;
+    }
 }
\ No newline at end of file