From acb6b046855ac197735075db9dc8b8a97bc8bf75 Mon Sep 17 00:00:00 2001
From: zichun <zhuzichunhogan@gmail.com>
Date: Wed, 6 May 2026 21:50:04 +0800
Subject: [PATCH] feat(common): PageResult + MP pagination config REQ-USR-003

---
 backend/src/main/java/com/xly/erp/common/response/PageResult.java | 24 ++++++++++++++++++++++++
 backend/src/main/java/com/xly/erp/config/MybatisPlusConfig.java   | 19 +++++++++++++++++++
 2 files changed, 43 insertions(+), 0 deletions(-)
 create mode 100644 backend/src/main/java/com/xly/erp/common/response/PageResult.java
 create mode 100644 backend/src/main/java/com/xly/erp/config/MybatisPlusConfig.java

diff --git a/backend/src/main/java/com/xly/erp/common/response/PageResult.java b/backend/src/main/java/com/xly/erp/common/response/PageResult.java
new file mode 100644
index 0000000..d26f9a7
--- /dev/null
+++ b/backend/src/main/java/com/xly/erp/common/response/PageResult.java
@@ -0,0 +1,24 @@
+package com.xly.erp.common.response;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** REQ-USR-003 引入的通用分页 VO。`data` 字段嵌套此结构。 */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class PageResult<T> {
+    private long total;
+    private List<T> list = new ArrayList<>();
+    private long pageNum;
+    private long pageSize;
+
+    public static <T> PageResult<T> of(IPage<T> page) {
+        return new PageResult<>(page.getTotal(), page.getRecords(), page.getCurrent(), page.getSize());
+    }
+}
diff --git a/backend/src/main/java/com/xly/erp/config/MybatisPlusConfig.java b/backend/src/main/java/com/xly/erp/config/MybatisPlusConfig.java
new file mode 100644
index 0000000..a0a3a1e
--- /dev/null
+++ b/backend/src/main/java/com/xly/erp/config/MybatisPlusConfig.java
@@ -0,0 +1,19 @@
+package com.xly.erp.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/** REQ-USR-003 引入：注册 MyBatis-Plus 分页拦截器，让 `Page<T>` 自动追加 LIMIT 子句。 */
+@Configuration
+public class MybatisPlusConfig {
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
+        return interceptor;
+    }
+}
--
libgit2 0.22.2