diff --git a/doc/plans/2026-02-06-ccdi_purchase_transaction.md b/doc/plans/2026-02-06-ccdi_purchase_transaction.md
index d70d9fc..ecc40f7 100644
--- a/doc/plans/2026-02-06-ccdi_purchase_transaction.md
+++ b/doc/plans/2026-02-06-ccdi_purchase_transaction.md
@@ -13,19 +13,14 @@
 
 ---
 
-## 实施进度
+## 前置条件
 
-✅ **已完成** (2026-02-06):
-- Task 1-14: 后端核心功能开发
-- 导入失败记录VO优化
-
-🔄 **待完成**:
-- Task 15-21: 前端开发、测试、文档
-
----
-
-## 数据库表结构
+### 参考文档
+- 员工招聘信息模块: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/**/CcdiStaffRecruitment*`
+- 员工异步导入实现: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiEmployeeImportServiceImpl.java`
+- 数据库表定义: `doc/docs/ccdi_purchase_transaction.csv`
 
+### 数据库表结构
 ```sql
 CREATE TABLE `ccdi_purchase_transaction` (
   `purchase_id` VARCHAR(32) NOT NULL COMMENT '采购事项ID',
@@ -64,173 +59,1152 @@ CREATE TABLE `ccdi_purchase_transaction` (
   `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
   `created_by` VARCHAR(50) NOT NULL COMMENT '创建人',
   `updated_by` VARCHAR(50) DEFAULT NULL COMMENT '更新人',
-  PRIMARY KEY (`purchase_id`),
-  KEY `idx_applicant_id` (`applicant_id`),
-  KEY `idx_apply_date` (`apply_date`),
-  KEY `idx_supplier_uscc` (`supplier_uscc`),
-  KEY `idx_category_method` (`purchase_category`, `purchase_method`)
+  PRIMARY KEY (`purchase_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='员工采购交易信息表';
 ```
 
 ---
 
-## 已完成的任务 (Task 1-14)
+## Task 1: 创建数据库表
 
-### Task 1: 创建数据库表 ✅
-- Commit: d83732f (修复后的提交)
-- 包含4个业务索引优化查询性能
+**Files:**
+- Modify: 执行SQL创建表
 
-### Task 2: 创建实体类 ✅
-- 文件: `CcdiPurchaseTransaction.java`
-- Commit: 913e5e5
+**Step 1: 连接数据库并创建表**
 
-### Task 3-7: 创建DTO、VO、Excel类 ✅
-- QueryDTO, AddDTO, EditDTO (修复工号验证)
-- VO类
-- Excel类
-- Commits: f80a58f, ad369e7→ac3b9cd, c1de614→ac3b9cd, 39032eb, 1d09c88
+使用MCP连接MySQL数据库:
+```bash
+# 使用 mcp__mysql__connect_db 连接到数据库
+# 然后执行上面的CREATE TABLE语句
+```
 
-### Task 8-9: 创建Mapper ✅
-- Mapper接口
-- Mapper XML映射
-- Commits: b0bd66d, d9f1b52
+**Step 2: 验证表创建**
 
-### Task 10-11: 创建Service接口 ✅
-- Service接口
-- 异步导入Service接口
-- Commits: 584581e, 1799017
+```sql
+SHOW CREATE TABLE ccdi_purchase_transaction;
+```
 
-### Task 12-13: 创建Service实现 ✅
-- Service实现类 (修复Redis初始化)
-- 异步导入Service实现类
-- Commits: a2764fd→9df2b5a, a4c21b8
+Expected: 表结构正确创建
 
-### Task 14: 创建Controller ✅
-- 10个REST API接口
-- Commit: 4ba0803
+**Step 3: Commit**
 
-### 额外: 优化导入失败记录VO ✅
-- 创建专门的 `PurchaseTransactionImportFailureVO`
-- 更新异步导入Service使用新VO
-- Commits: 1aa0d15, 4a560bd
+```bash
+git add sql/
+git commit -m "feat: 添加员工采购交易信息表"
+```
 
 ---
 
-## 待执行任务 (Task 15-21)
+## Task 2: 创建实体类
 
-### Task 15: 创建前端API文件
-**文件:** `ruoyi-ui/src/api/ccdiPurchaseTransaction.js`
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/CcdiPurchaseTransaction.java`
 
-**内容:** 定义10个API方法
-- listTransaction - 分页查询
-- getTransaction - 查询详情
-- addTransaction - 新增
-- updateTransaction - 修改
-- delTransaction - 删除
-- exportTransaction - 导出
-- importTemplate - 下载模板
-- importData - 导入
-- getImportStatus - 查询导入状态
-- getImportFailures - 查询失败记录
+**Step 1: 创建实体类**
 
-### Task 16: 创建前端页面组件
-**文件:** `ruoyi-ui/src/views/ccdiPurchaseTransaction/index.vue`
+```java
+package com.ruoyi.ccdi.domain;
 
-**功能:**
-- 查询表单（项目名称、标的物名称、申请人、日期范围）
-- 列表表格（13个主要字段 + 操作列）
-- 新增/编辑对话框
-- **导入对话框（异步轮询）**
-- 删除确认
+import com.baomidou.mybatisplus.annotation.FieldFill;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import lombok.Data;
 
-**关键实现:**
-```javascript
-// 异步导入轮询逻辑
-async handleImport(file, updateSupport) {
-  const res = await importData(file, updateSupport)
-  const taskId = res.data.taskId
+import java.io.Serial;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
 
-  // 每2秒轮询状态
-  const timer = setInterval(async () => {
-    const status = await getImportStatus(taskId)
-    if (status.data.status === 'SUCCESS' || status.data.status === 'PARTIAL_SUCCESS') {
-      clearInterval(timer)
-      if (status.data.status === 'PARTIAL_SUCCESS') {
-        // 显示失败记录
-        this.fetchFailures(taskId)
-      }
-      this.$message.success(status.data.message)
-    }
-  }, 2000)
+/**
+ * 员工采购交易信息对象 ccdi_purchase_transaction
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+@Data
+public class CcdiPurchaseTransaction implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /** 采购事项ID */
+    @TableId(type = IdType.INPUT)
+    private String purchaseId;
+
+    /** 采购类别 */
+    private String purchaseCategory;
+
+    /** 项目名称 */
+    private String projectName;
+
+    /** 标的物名称 */
+    private String subjectName;
+
+    /** 标的物描述 */
+    private String subjectDesc;
+
+    /** 采购数量 */
+    private BigDecimal purchaseQty;
+
+    /** 预算金额 */
+    private BigDecimal budgetAmount;
+
+    /** 中标金额 */
+    private BigDecimal bidAmount;
+
+    /** 实际采购金额 */
+    private BigDecimal actualAmount;
+
+    /** 合同金额 */
+    private BigDecimal contractAmount;
+
+    /** 结算金额 */
+    private BigDecimal settlementAmount;
+
+    /** 采购方式 */
+    private String purchaseMethod;
+
+    /** 中标供应商名称 */
+    private String supplierName;
+
+    /** 供应商联系人 */
+    private String contactPerson;
+
+    /** 供应商联系电话 */
+    private String contactPhone;
+
+    /** 供应商统一信用代码 */
+    private String supplierUscc;
+
+    /** 供应商银行账户 */
+    private String supplierBankAccount;
+
+    /** 采购申请日期 */
+    private LocalDate applyDate;
+
+    /** 采购计划批准日期 */
+    private LocalDate planApproveDate;
+
+    /** 采购公告发布日期 */
+    private LocalDate announceDate;
+
+    /** 开标日期 */
+    private LocalDate bidOpenDate;
+
+    /** 合同签订日期 */
+    private LocalDate contractSignDate;
+
+    /** 预计交货日期 */
+    private LocalDate expectedDeliveryDate;
+
+    /** 实际交货日期 */
+    private LocalDate actualDeliveryDate;
+
+    /** 验收日期 */
+    private LocalDate acceptanceDate;
+
+    /** 结算日期 */
+    private LocalDate settlementDate;
+
+    /** 申请人工号 */
+    private String applicantId;
+
+    /** 申请人姓名 */
+    private String applicantName;
+
+    /** 申请部门 */
+    private String applyDepartment;
+
+    /** 采购负责人工号 */
+    private String purchaseLeaderId;
+
+    /** 采购负责人姓名 */
+    private String purchaseLeaderName;
+
+    /** 采购部门 */
+    private String purchaseDepartment;
+
+    /** 创建时间 */
+    @TableField(fill = FieldFill.INSERT)
+    private LocalDateTime createTime;
+
+    /** 更新时间 */
+    @TableField(fill = FieldFill.INSERT_UPDATE)
+    private LocalDateTime updateTime;
+
+    /** 创建人 */
+    @TableField(fill = FieldFill.INSERT)
+    private String createdBy;
+
+    /** 更新人 */
+    @TableField(fill = FieldFill.INSERT_UPDATE)
+    private String updatedBy;
 }
 ```
 
-### Task 17: 配置菜单和权限
-**文件:** `sql/ccdi_purchase_transaction_menu.sql`
+**Step 2: 验证编译**
 
-**内容:**
-- 主菜单：采购交易管理
-- 6个按钮权限：查询、新增、修改、删除、导出、导入
+```bash
+cd ruoyi-ccdi
+mvn compile -pl . -am
+```
 
-### Task 18: 生成测试脚本（跳过）
-**文件:** `test/test_purchase_transaction_api.ps1`
+Expected: 编译成功，无错误
 
-**内容:** PowerShell测试脚本
-- 登录 (admin/admin123)
-- 测试所有API接口
-- 包含异步导入流程测试
+**Step 3: Commit**
 
-### Task 19: 创建测试说明
-**文件:** `doc/test-data/purchase_transaction/README.md`
-
-**内容:** 测试运行说明
-
-### Task 20: 生成API文档
-**文件:** `doc/api/ccdi_purchase_transaction_api.md`
-
-**内容:** 接口文档
-- 接口列表
-- 请求参数
-- 响应格式
-- 示例
-
-### Task 21: 最终验证清单
-**文件:** `doc/plans/2026-02-06-ccdi_purchase_transaction-verification.md`
-
-**内容:**
-- 功能测试清单
-- 代码审查清单
-- 性能测试建议
-- 部署前检查项
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/CcdiPurchaseTransaction.java
+git commit -m "feat: 添加采购交易信息实体类"
+```
 
 ---
 
-## 技术要点
+## Task 3: 创建查询DTO
 
-### 必填字段
-purchaseId, purchaseCategory, subjectName, purchaseQty, budgetAmount, purchaseMethod, applyDate, applicantId, applicantName, applyDepartment
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionQueryDTO.java`
 
-### 异步导入
-- 使用 @Async + @Transactional + Redis
-- taskId追踪导入进度
-- 每2秒轮询状态
-- 失败记录存储7天
+**Step 1: 创建查询DTO**
 
-### 更新策略
-- 先批量删除旧记录
-- 再批量插入新记录
-- 每批500条记录
+```java
+package com.ruoyi.ccdi.domain.dto;
 
-### 数据验证
-- Jakarta Validation注解
-- 工号格式：7位数字
-- 金额非负验证
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.time.LocalDate;
+
+/**
+ * 采购交易信息查询DTO
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+@Data
+@Schema(description = "采购交易信息查询条件")
+public class CcdiPurchaseTransactionQueryDTO implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /** 项目名称 */
+    @Schema(description = "项目名称")
+    private String projectName;
+
+    /** 标的物名称 */
+    @Schema(description = "标的物名称")
+    private String subjectName;
+
+    /** 申请人姓名 */
+    @Schema(description = "申请人姓名")
+    private String applicantName;
+
+    /** 申请人工号 */
+    @Schema(description = "申请人工号")
+    private String applicantId;
+
+    /** 申请日期-开始 */
+    @Schema(description = "申请日期-开始")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate applyDateStart;
+
+    /** 申请日期-结束 */
+    @Schema(description = "申请日期-结束")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate applyDateEnd;
+}
+```
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionQueryDTO.java
+git commit -m "feat: 添加采购交易查询DTO"
+```
 
 ---
 
+## Task 4: 创建新增DTO
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java`
+
+**Step 1: 创建新增DTO（包含验证注解）**
+
+```java
+package com.ruoyi.ccdi.domain.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.*;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+/**
+ * 采购交易信息新增DTO
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+@Data
+@Schema(description = "采购交易信息新增")
+public class CcdiPurchaseTransactionAddDTO implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    @Schema(description = "采购事项ID")
+    @NotBlank(message = "采购事项ID不能为空")
+    @Size(max = 32, message = "采购事项ID长度不能超过32个字符")
+    private String purchaseId;
+
+    @Schema(description = "采购类别")
+    @NotBlank(message = "采购类别不能为空")
+    @Size(max = 50, message = "采购类别长度不能超过50个字符")
+    private String purchaseCategory;
+
+    @Schema(description = "项目名称")
+    @Size(max = 200, message = "项目名称长度不能超过200个字符")
+    private String projectName;
+
+    @Schema(description = "标的物名称")
+    @NotBlank(message = "标的物名称不能为空")
+    @Size(max = 200, message = "标的物名称长度不能超过200个字符")
+    private String subjectName;
+
+    @Schema(description = "标的物描述")
+    private String subjectDesc;
+
+    @Schema(description = "采购数量")
+    @NotNull(message = "采购数量不能为空")
+    @DecimalMin(value = "0.0001", message = "采购数量必须大于0")
+    private BigDecimal purchaseQty;
+
+    @Schema(description = "预算金额")
+    @NotNull(message = "预算金额不能为空")
+    @DecimalMin(value = "0.01", message = "预算金额必须大于0")
+    private BigDecimal budgetAmount;
+
+    @Schema(description = "中标金额")
+    @DecimalMin(value = "0", message = "中标金额不能为负数")
+    private BigDecimal bidAmount;
+
+    @Schema(description = "实际采购金额")
+    @DecimalMin(value = "0", message = "实际采购金额不能为负数")
+    private BigDecimal actualAmount;
+
+    @Schema(description = "合同金额")
+    @DecimalMin(value = "0", message = "合同金额不能为负数")
+    private BigDecimal contractAmount;
+
+    @Schema(description = "结算金额")
+    @DecimalMin(value = "0", message = "结算金额不能为负数")
+    private BigDecimal settlementAmount;
+
+    @Schema(description = "采购方式")
+    @NotBlank(message = "采购方式不能为空")
+    @Size(max = 50, message = "采购方式长度不能超过50个字符")
+    private String purchaseMethod;
+
+    @Schema(description = "中标供应商名称")
+    @Size(max = 200, message = "中标供应商名称长度不能超过200个字符")
+    private String supplierName;
+
+    @Schema(description = "供应商联系人")
+    @Size(max = 50, message = "供应商联系人长度不能超过50个字符")
+    private String contactPerson;
+
+    @Schema(description = "供应商联系电话")
+    @Size(max = 20, message = "供应商联系电话长度不能超过20个字符")
+    private String contactPhone;
+
+    @Schema(description = "供应商统一信用代码")
+    @Size(max = 18, message = "供应商统一信用代码长度不能超过18个字符")
+    private String supplierUscc;
+
+    @Schema(description = "供应商银行账户")
+    @Size(max = 50, message = "供应商银行账户长度不能超过50个字符")
+    private String supplierBankAccount;
+
+    @Schema(description = "采购申请日期")
+    @NotNull(message = "采购申请日期不能为空")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate applyDate;
+
+    @Schema(description = "采购计划批准日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate planApproveDate;
+
+    @Schema(description = "采购公告发布日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate announceDate;
+
+    @Schema(description = "开标日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate bidOpenDate;
+
+    @Schema(description = "合同签订日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate contractSignDate;
+
+    @Schema(description = "预计交货日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate expectedDeliveryDate;
+
+    @Schema(description = "实际交货日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate actualDeliveryDate;
+
+    @Schema(description = "验收日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate acceptanceDate;
+
+    @Schema(description = "结算日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate settlementDate;
+
+    @Schema(description = "申请人工号")
+    @NotBlank(message = "申请人工号不能为空")
+    @Pattern(regexp = "^\\d{7}$", message = "申请人工号必须为7位数字")
+    private String applicantId;
+
+    @Schema(description = "申请人姓名")
+    @NotBlank(message = "申请人姓名不能为空")
+    @Size(max = 50, message = "申请人姓名长度不能超过50个字符")
+    private String applicantName;
+
+    @Schema(description = "申请部门")
+    @NotBlank(message = "申请部门不能为空")
+    @Size(max = 100, message = "申请部门长度不能超过100个字符")
+    private String applyDepartment;
+
+    @Schema(description = "采购负责人工号")
+    @Pattern(regexp = "^\\d{7}$", message = "采购负责人工号必须为7位数字")
+    private String purchaseLeaderId;
+
+    @Schema(description = "采购负责人姓名")
+    @Size(max = 50, message = "采购负责人姓名长度不能超过50个字符")
+    private String purchaseLeaderName;
+
+    @Schema(description = "采购部门")
+    @Size(max = 100, message = "采购部门长度不能超过100个字符")
+    private String purchaseDepartment;
+}
+```
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java
+git commit -m "feat: 添加采购交易新增DTO"
+```
+
+---
+
+## Task 5: 创建编辑DTO
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java`
+
+**Step 1: 创建编辑DTO**
+
+复制AddDTO的内容,修改类名和类注释,所有验证注解保持不变。
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java
+git commit -m "feat: 添加采购交易编辑DTO"
+```
+
+---
+
+## Task 6: 创建VO类
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/vo/CcdiPurchaseTransactionVO.java`
+
+**Step 1: 创建VO类**
+
+```java
+package com.ruoyi.ccdi.domain.vo;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+/**
+ * 采购交易信息VO
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+@Data
+@Schema(description = "采购交易信息")
+public class CcdiPurchaseTransactionVO implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    @Schema(description = "采购事项ID")
+    private String purchaseId;
+
+    @Schema(description = "采购类别")
+    private String purchaseCategory;
+
+    @Schema(description = "项目名称")
+    private String projectName;
+
+    @Schema(description = "标的物名称")
+    private String subjectName;
+
+    @Schema(description = "标的物描述")
+    private String subjectDesc;
+
+    @Schema(description = "采购数量")
+    private BigDecimal purchaseQty;
+
+    @Schema(description = "预算金额")
+    private BigDecimal budgetAmount;
+
+    @Schema(description = "中标金额")
+    private BigDecimal bidAmount;
+
+    @Schema(description = "实际采购金额")
+    private BigDecimal actualAmount;
+
+    @Schema(description = "合同金额")
+    private BigDecimal contractAmount;
+
+    @Schema(description = "结算金额")
+    private BigDecimal settlementAmount;
+
+    @Schema(description = "采购方式")
+    private String purchaseMethod;
+
+    @Schema(description = "中标供应商名称")
+    private String supplierName;
+
+    @Schema(description = "供应商联系人")
+    private String contactPerson;
+
+    @Schema(description = "供应商联系电话")
+    private String contactPhone;
+
+    @Schema(description = "供应商统一信用代码")
+    private String supplierUscc;
+
+    @Schema(description = "供应商银行账户")
+    private String supplierBankAccount;
+
+    @Schema(description = "采购申请日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate applyDate;
+
+    @Schema(description = "采购计划批准日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate planApproveDate;
+
+    @Schema(description = "采购公告发布日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate announceDate;
+
+    @Schema(description = "开标日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate bidOpenDate;
+
+    @Schema(description = "合同签订日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate contractSignDate;
+
+    @Schema(description = "预计交货日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate expectedDeliveryDate;
+
+    @Schema(description = "实际交货日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate actualDeliveryDate;
+
+    @Schema(description = "验收日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate acceptanceDate;
+
+    @Schema(description = "结算日期")
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    private LocalDate settlementDate;
+
+    @Schema(description = "申请人工号")
+    private String applicantId;
+
+    @Schema(description = "申请人姓名")
+    private String applicantName;
+
+    @Schema(description = "申请部门")
+    private String applyDepartment;
+
+    @Schema(description = "采购负责人工号")
+    private String purchaseLeaderId;
+
+    @Schema(description = "采购负责人姓名")
+    private String purchaseLeaderName;
+
+    @Schema(description = "采购部门")
+    private String purchaseDepartment;
+
+    @Schema(description = "创建时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime createTime;
+
+    @Schema(description = "更新时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime updateTime;
+
+    @Schema(description = "创建人")
+    private String createdBy;
+
+    @Schema(description = "更新人")
+    private String updatedBy;
+}
+```
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/vo/CcdiPurchaseTransactionVO.java
+git commit -m "feat: 添加采购交易VO类"
+```
+
+---
+
+## Task 7: 创建Excel导入导出类
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/excel/CcdiPurchaseTransactionExcel.java`
+
+**Step 1: 创建Excel类**
+
+参考 `CcdiStaffRecruitmentExcel.java`，为36个字段添加 `@ExcelProperty`、`@ColumnWidth`、`@Required` 注解。必填字段：purchaseId, purchaseCategory, subjectName, purchaseQty, budgetAmount, purchaseMethod, applyDate, applicantId, applicantName, applyDepartment。
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/excel/CcdiPurchaseTransactionExcel.java
+git commit -m "feat: 添加采购交易Excel类"
+```
+
+---
+
+## Task 8: 创建Mapper接口
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/mapper/CcdiPurchaseTransactionMapper.java`
+
+**Step 1: 创建Mapper接口**
+
+```java
+package com.ruoyi.ccdi.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.ruoyi.ccdi.domain.CcdiPurchaseTransaction;
+import com.ruoyi.ccdi.domain.dto.CcdiPurchaseTransactionQueryDTO;
+import com.ruoyi.ccdi.domain.vo.CcdiPurchaseTransactionVO;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 采购交易信息 数据层
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+public interface CcdiPurchaseTransactionMapper extends BaseMapper<CcdiPurchaseTransaction> {
+
+    /**
+     * 分页查询采购交易列表
+     */
+    Page<CcdiPurchaseTransactionVO> selectTransactionPage(@Param("page") Page<CcdiPurchaseTransactionVO> page,
+                                                          @Param("query") CcdiPurchaseTransactionQueryDTO queryDTO);
+
+    /**
+     * 查询采购交易详情
+     */
+    CcdiPurchaseTransactionVO selectTransactionById(@Param("purchaseId") String purchaseId);
+
+    /**
+     * 批量插入
+     */
+    int insertBatch(@Param("list") List<CcdiPurchaseTransaction> list);
+
+    /**
+     * 批量更新（先删除再插入）
+     */
+    int insertOrUpdateBatch(@Param("list") List<CcdiPurchaseTransaction> list);
+}
+```
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/mapper/CcdiPurchaseTransactionMapper.java
+git commit -m "feat: 添加采购交易Mapper接口"
+```
+
+---
+
+## Task 9: 创建Mapper XML文件
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/resources/mapper/ccdi/CcdiPurchaseTransactionMapper.xml`
+
+**Step 1: 创建XML映射文件**
+
+参考 `CcdiStaffRecruitmentMapper.xml`，编写SQL映射:
+- selectTransactionPage: 分页查询,支持项目名称、标的物名称、申请人、日期范围查询
+- selectTransactionById: 根据ID查询详情
+- insertBatch: 批量插入
+- insertOrUpdateBatch: 批量更新(先删除再插入)
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/resources/mapper/ccdi/CcdiPurchaseTransactionMapper.xml
+git commit -m "feat: 添加采购交易Mapper XML"
+```
+
+---
+
+## Task 10: 创建Service接口
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/ICcdiPurchaseTransactionService.java`
+
+**Step 1: 创建Service接口**
+
+参考 `ICcdiStaffRecruitmentService.java`，定义以下方法:
+- selectTransactionList
+- selectTransactionPage
+- selectTransactionListForExport
+- selectTransactionById
+- insertTransaction
+- updateTransaction
+- deleteTransactionByIds
+- importTransaction (返回taskId)
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/ICcdiPurchaseTransactionService.java
+git commit -m "feat: 添加采购交易Service接口"
+```
+
+---
+
+## Task 11: 创建异步导入Service接口
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/ICcdiPurchaseTransactionImportService.java`
+
+**Step 1: 创建异步导入Service接口**
+
+参考 `ICcdiEmployeeImportService.java`，定义方法:
+- importTransactionAsync
+- getImportStatus
+- getImportFailures
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/ICcdiPurchaseTransactionImportService.java
+git commit -m "feat: 添加采购交易异步导入Service接口"
+```
+
+---
+
+## Task 12: 创建Service实现类
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiPurchaseTransactionServiceImpl.java`
+
+**Step 1: 创建Service实现**
+
+参考 `CcdiStaffRecruitmentServiceImpl.java`，实现所有CRUD方法和importTransaction方法(初始化Redis状态,调用异步服务)。
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiPurchaseTransactionServiceImpl.java
+git commit -m "feat: 添加采购交易Service实现"
+```
+
+---
+
+## Task 13: 创建异步导入Service实现类
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiPurchaseTransactionImportServiceImpl.java`
+
+**Step 1: 创建异步导入实现**
+
+参考 `CcdiEmployeeImportServiceImpl.java`，实现:
+- @Async + @Transactional 注解
+- importTransactionAsync方法(接收userName参数)
+- 数据分类(新记录/更新记录/失败记录)
+- 批量插入和更新
+- Redis状态管理
+- 数据验证逻辑
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiPurchaseTransactionImportServiceImpl.java
+git commit -m "feat: 添加采购交易异步导入Service实现"
+```
+
+---
+
+## Task 14: 创建Controller控制器
+
+**Files:**
+- Create: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/controller/CcdiPurchaseTransactionController.java`
+
+**Step 1: 创建Controller**
+
+参考 `CcdiStaffRecruitmentController.java` 和 `CcdiEmployeeController.java`，实现接口:
+- GET /list - 分页查询
+- GET /{purchaseId} - 查询详情
+- POST / - 新增
+- PUT / - 修改
+- DELETE /{purchaseIds} - 删除
+- POST /export - 导出
+- POST /importTemplate - 下载模板
+- POST /importData - 异步导入
+- GET /importStatus/{taskId} - 查询导入状态
+- GET /importFailures/{taskId} - 查询失败记录
+
+添加完整的Swagger注解。
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/controller/CcdiPurchaseTransactionController.java
+git commit -m "feat: 添加采购交易Controller"
+```
+
+---
+
+## Task 15: 创建前端API文件
+
+**Files:**
+- Create: `ruoyi-ui/src/api/ccdiPurchaseTransaction.js`
+
+**Step 1: 创建API定义**
+
+```javascript
+import request from '@/utils/request'
+
+// 查询采购交易列表
+export function listTransaction(query) {
+  return request({
+    url: '/ccdi/purchaseTransaction/list',
+    method: 'get',
+    params: query
+  })
+}
+
+// 查询采购交易详情
+export function getTransaction(purchaseId) {
+  return request({
+    url: '/ccdi/purchaseTransaction/' + purchaseId,
+    method: 'get'
+  })
+}
+
+// 新增采购交易
+export function addTransaction(data) {
+  return request({
+    url: '/ccdi/purchaseTransaction',
+    method: 'post',
+    data: data
+  })
+}
+
+// 修改采购交易
+export function updateTransaction(data) {
+  return request({
+    url: '/ccdi/purchaseTransaction',
+    method: 'put',
+    data: data
+  })
+}
+
+// 删除采购交易
+export function delTransaction(purchaseIds) {
+  return request({
+    url: '/ccdi/purchaseTransaction/' + purchaseIds,
+    method: 'delete'
+  })
+}
+
+// 导出采购交易
+export function exportTransaction(query) {
+  return request({
+    url: '/ccdi/purchaseTransaction/export',
+    method: 'post',
+    params: query
+  })
+}
+
+// 下载导入模板
+export function importTemplate() {
+  return request({
+    url: '/ccdi/purchaseTransaction/importTemplate',
+    method: 'post'
+  })
+}
+
+// 导入采购交易
+export function importData(file, updateSupport) {
+  const formData = new FormData()
+  formData.append('file', file)
+  formData.append('updateSupport', updateSupport)
+  return request({
+    url: '/ccdi/purchaseTransaction/importData',
+    method: 'post',
+    data: formData
+  })
+}
+
+// 查询导入状态
+export function getImportStatus(taskId) {
+  return request({
+    url: '/ccdi/purchaseTransaction/importStatus/' + taskId,
+    method: 'get'
+  })
+}
+
+// 查询导入失败记录
+export function getImportFailures(taskId, pageNum, pageSize) {
+  return request({
+    url: '/ccdi/purchaseTransaction/importFailures/' + taskId,
+    method: 'get',
+    params: { pageNum, pageSize }
+  })
+}
+```
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ui/src/api/ccdiPurchaseTransaction.js
+git commit -m "feat: 添加采购交易前端API"
+```
+
+---
+
+## Task 16: 创建前端页面组件
+
+**Files:**
+- Create: `ruoyi-ui/src/views/ccdiPurchaseTransaction/index.vue`
+
+**Step 1: 创建页面组件**
+
+参考 `ruoyi-ui/src/views/ccdiStaffRecruitment/index.vue`，实现:
+- 查询表单(项目名称、标的物名称、申请人、日期范围)
+- 列表表格(13个字段 + 操作列)
+- 新增/编辑对话框
+- 导入对话框(支持异步导入状态轮询)
+- 删除确认
+
+**Step 2: Commit**
+
+```bash
+git add ruoyi-ui/src/views/ccdiPurchaseTransaction/index.vue
+git commit -m "feat: 添加采购交易管理页面"
+```
+
+---
+
+## Task 17: 配置菜单和权限
+
+**Files:**
+- Modify: 数据库菜单表
+
+**Step 1: 添加菜单数据**
+
+执行SQL:
+```sql
+-- 添加采购交易管理菜单
+INSERT INTO sys_menu (menu_name, parent_id, order_num, path, component, is_frame, is_cache, menu_type, visible, status, perms, icon, create_by, create_time, update_by, update_time, remark)
+VALUES
+('采购交易管理', (SELECT menu_id FROM sys_menu WHERE menu_name='CCDI管理' AND parent_id=0), 5, 'purchaseTransaction', 'ccdiPurchaseTransaction/index', 1, 0, 'C', '0', '0', 'ccdi:purchaseTransaction:list', 'shopping', 'admin', NOW(), '', NULL, '采购交易信息管理菜单');
+
+-- 获取刚插入的菜单ID
+SET @menu_id = LAST_INSERT_ID();
+
+-- 添加按钮权限
+INSERT INTO sys_menu (menu_name, parent_id, order_num, path, component, is_frame, is_cache, menu_type, visible, status, perms, icon, create_by, create_time, remark) VALUES
+('采购交易查询', @menu_id, 1, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:query', '#', 'admin', NOW(), ''),
+('采购交易新增', @menu_id, 2, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:add', '#', 'admin', NOW(), ''),
+('采购交易修改', @menu_id, 3, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:edit', '#', 'admin', NOW(), ''),
+('采购交易删除', @menu_id, 4, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:remove', '#', 'admin', NOW(), ''),
+('采购交易导出', @menu_id, 5, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:export', '#', 'admin', NOW(), ''),
+('采购交易导入', @menu_id, 6, '', '', 1, 0, 'F', '0', '0', 'ccdi:purchaseTransaction:import', '#', 'admin', NOW(), '');
+```
+
+**Step 2: Commit**
+
+```bash
+git add sql/
+git commit -m "feat: 配置采购交易管理菜单和权限"
+```
+
+---
+
+## Task 18: 生成测试脚本
+
+**Files:**
+- Create: `test/test_purchase_transaction_api.ps1`
+
+**Step 1: 创建测试脚本**
+
+参考 `test/test_employee_api.ps1`，编写完整的测试脚本:
+- 登录获取token
+- 测试分页查询
+- 测试新增
+- 测试查询详情
+- 测试修改
+- 测试删除
+- 测试导入
+- 测试导出
+
+**Step 2: Commit**
+
+```bash
+git add test/test_purchase_transaction_api.ps1
+git commit -m "test: 添加采购交易API测试脚本"
+```
+
+---
+
+## Task 19: 运行测试并生成报告
+
+**Step 1: 运行测试脚本**
+
+```powershell
+cd test
+./test_purchase_transaction_api.ps1 > test_report_$(Get-Date -Format 'yyyyMMdd_HHmmss').txt
+```
+
+**Step 2: 验证所有接口正常**
+
+Expected: 所有测试用例通过
+
+**Step 3: 保存测试报告**
+
+将测试报告保存到 `doc/test-data/purchase_transaction/` 目录。
+
+**Step 4: Commit**
+
+```bash
+git add doc/test-data/purchase_transaction/
+git commit -m "test: 添加采购交易测试报告"
+```
+
+---
+
+## Task 20: 生成API文档
+
+**Files:**
+- Create: `doc/api/ccdi_purchase_transaction_api.md`
+
+**Step 1: 导出Swagger API文档**
+
+访问 http://localhost:8080/swagger-ui/index.html，导出采购交易管理的API文档。
+
+**Step 2: 整理为Markdown格式**
+
+整理所有接口的请求参数、响应格式、示例。
+
+**Step 3: Commit**
+
+```bash
+git add doc/api/ccdi_purchase_transaction_api.md
+git commit -m "docs: 添加采购交易API文档"
+```
+
+---
+
+## Task 21: 最终验证和清理
+
+**Step 1: 完整功能测试**
+
+1. 启动后端服务
+2. 启动前端服务
+3. 登录系统
+4. 导航到采购交易管理菜单
+5. 测试所有功能:
+   - 列表查询
+   - 新增记录
+   - 编辑记录
+   - 删除记录
+   - 批量删除
+   - 导入功能(含异步状态轮询)
+   - 导出功能
+
+**Step 2: 代码审查**
+
+检查:
+- 所有DTO验证注解完整
+- 所有Swagger注解完整
+- 异常处理完善
+- 日志记录完整
+- 审计字段正确填充
+
+**Step 3: 性能测试**
+
+测试批量导入1000条数据的性能。
+
+**Step 4: 最终Commit**
+
+```bash
+git add .
+git commit -m "feat: 完成采购交易信息管理功能开发"
+```
+
+---
+
+## 实施注意事项
+
+1. **必填字段**: purchaseId, purchaseCategory, subjectName, purchaseQty, budgetAmount, purchaseMethod, applyDate, applicantId, applicantName, applyDepartment
+2. **异步导入**: 使用@Async + @Transactional + Redis
+3. **批量操作**: 每批500条记录
+4. **更新策略**: 先批量删除，再批量插入
+5. **数据验证**: Jakarta Validation + 自定义业务验证
+6. **审计字段**: 使用@TableField(fill = FieldFill.INSERT/INSERT_UPDATE)
+7. **错误处理**: 只返回失败记录，不返回成功记录
+8. **导入轮询**: 每2秒轮询一次状态
+
 ## 参考文件
 
-- 员工招聘模块: `CcdiStaffRecruitment*`
-- 员工异步导入: `CcdiEmployeeImportServiceImpl.java`
+- 员工招聘信息模块: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/**/CcdiStaffRecruitment*`
+- 员工异步导入: `ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiEmployeeImportServiceImpl.java`
 - 前端页面: `ruoyi-ui/src/views/ccdiStaffRecruitment/index.vue`
 - 测试脚本: `test/test_employee_api.ps1`