diff --git a/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/controller/CcdiPurchaseTransactionController.java b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/controller/CcdiPurchaseTransactionController.java
new file mode 100644
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+++ b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/controller/CcdiPurchaseTransactionController.java
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+package com.ruoyi.ccdi.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.ruoyi.ccdi.domain.dto.CcdiPurchaseTransactionAddDTO;
+import com.ruoyi.ccdi.domain.dto.CcdiPurchaseTransactionEditDTO;
+import com.ruoyi.ccdi.domain.dto.CcdiPurchaseTransactionQueryDTO;
+import com.ruoyi.ccdi.domain.excel.CcdiPurchaseTransactionExcel;
+import com.ruoyi.ccdi.domain.vo.CcdiPurchaseTransactionVO;
+import com.ruoyi.ccdi.domain.vo.ImportFailureVO;
+import com.ruoyi.ccdi.domain.vo.ImportStatusVO;
+import com.ruoyi.ccdi.service.ICcdiPurchaseTransactionImportService;
+import com.ruoyi.ccdi.service.ICcdiPurchaseTransactionService;
+import com.ruoyi.ccdi.utils.EasyExcelUtil;
+import com.ruoyi.common.annotation.Log;
+import com.ruoyi.common.core.controller.BaseController;
+import com.ruoyi.common.core.domain.AjaxResult;
+import com.ruoyi.common.core.page.PageDomain;
+import com.ruoyi.common.core.page.TableDataInfo;
+import com.ruoyi.common.core.page.TableSupport;
+import com.ruoyi.common.enums.BusinessType;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+/**
+ * 采购交易信息Controller
+ *
+ * @author ruoyi
+ * @date 2026-02-06
+ */
+@Tag(name = "采购交易信息管理")
+@RestController
+@RequestMapping("/ccdi/purchaseTransaction")
+public class CcdiPurchaseTransactionController extends BaseController {
+
+    @Resource
+    private ICcdiPurchaseTransactionService transactionService;
+
+    @Resource
+    private ICcdiPurchaseTransactionImportService transactionImportService;
+
+    /**
+     * 查询采购交易列表
+     */
+    @Operation(summary = "查询采购交易列表")
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:list')")
+    @GetMapping("/list")
+    public TableDataInfo list(CcdiPurchaseTransactionQueryDTO queryDTO) {
+        // 使用MyBatis Plus分页
+        PageDomain pageDomain = TableSupport.buildPageRequest();
+        Page<CcdiPurchaseTransactionVO> page = new Page<>(pageDomain.getPageNum(), pageDomain.getPageSize());
+        Page<CcdiPurchaseTransactionVO> result = transactionService.selectTransactionPage(page, queryDTO);
+        return getDataTable(result.getRecords(), result.getTotal());
+    }
+
+    /**
+     * 导出采购交易列表
+     */
+    @Operation(summary = "导出采购交易列表")
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:export')")
+    @Log(title = "采购交易信息", businessType = BusinessType.EXPORT)
+    @PostMapping("/export")
+    public void export(HttpServletResponse response, CcdiPurchaseTransactionQueryDTO queryDTO) {
+        List<CcdiPurchaseTransactionExcel> list = transactionService.selectTransactionListForExport(queryDTO);
+        EasyExcelUtil.exportExcel(response, list, CcdiPurchaseTransactionExcel.class, "采购交易信息");
+    }
+
+    /**
+     * 获取采购交易详细信息
+     */
+    @Operation(summary = "获取采购交易详细信息")
+    @Parameter(name = "purchaseId", description = "采购事项ID", required = true)
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:query')")
+    @GetMapping(value = "/{purchaseId}")
+    public AjaxResult getInfo(@PathVariable String purchaseId) {
+        return success(transactionService.selectTransactionById(purchaseId));
+    }
+
+    /**
+     * 新增采购交易
+     */
+    @Operation(summary = "新增采购交易")
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:add')")
+    @Log(title = "采购交易信息", businessType = BusinessType.INSERT)
+    @PostMapping
+    public AjaxResult add(@Validated @RequestBody CcdiPurchaseTransactionAddDTO addDTO) {
+        return toAjax(transactionService.insertTransaction(addDTO));
+    }
+
+    /**
+     * 修改采购交易
+     */
+    @Operation(summary = "修改采购交易")
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:edit')")
+    @Log(title = "采购交易信息", businessType = BusinessType.UPDATE)
+    @PutMapping
+    public AjaxResult edit(@Validated @RequestBody CcdiPurchaseTransactionEditDTO editDTO) {
+        return toAjax(transactionService.updateTransaction(editDTO));
+    }
+
+    /**
+     * 删除采购交易
+     */
+    @Operation(summary = "删除采购交易")
+    @Parameter(name = "purchaseIds", description = "采购事项ID数组", required = true)
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:remove')")
+    @Log(title = "采购交易信息", businessType = BusinessType.DELETE)
+    @DeleteMapping("/{purchaseIds}")
+    public AjaxResult remove(@PathVariable String[] purchaseIds) {
+        return toAjax(transactionService.deleteTransactionByIds(purchaseIds));
+    }
+
+    /**
+     * 下载带字典下拉框的导入模板
+     * 使用@DictDropdown注解自动添加下拉框
+     */
+    @Operation(summary = "下载导入模板")
+    @PostMapping("/importTemplate")
+    public void importTemplate(HttpServletResponse response) {
+        EasyExcelUtil.importTemplateWithDictDropdown(response, CcdiPurchaseTransactionExcel.class, "采购交易信息");
+    }
+
+    /**
+     * 异步导入采购交易
+     */
+    @Operation(summary = "异步导入采购交易")
+    @Parameter(name = "file", description = "导入文件", required = true)
+    @Parameter(name = "updateSupport", description = "是否更新支持，true-存在则更新，false-存在则跳过", required = true)
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:import')")
+    @Log(title = "采购交易信息", businessType = BusinessType.IMPORT)
+    @PostMapping("/importData")
+    public AjaxResult importData(@Parameter(description = "导入文件") MultipartFile file,
+                                 @Parameter(description = "是否更新支持") boolean updateSupport) throws Exception {
+        List<CcdiPurchaseTransactionExcel> list = EasyExcelUtil.importExcel(file.getInputStream(), CcdiPurchaseTransactionExcel.class);
+        String taskId = transactionService.importTransaction(list, updateSupport);
+        return success("导入任务已提交，任务ID：" + taskId);
+    }
+
+    /**
+     * 查询导入状态
+     */
+    @Operation(summary = "查询导入状态")
+    @Parameter(name = "taskId", description = "任务ID", required = true)
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:import')")
+    @GetMapping("/importStatus/{taskId}")
+    public AjaxResult getImportStatus(@PathVariable String taskId) {
+        ImportStatusVO statusVO = transactionImportService.getImportStatus(taskId);
+        return success(statusVO);
+    }
+
+    /**
+     * 查询导入失败记录
+     */
+    @Operation(summary = "查询导入失败记录")
+    @Parameter(name = "taskId", description = "任务ID", required = true)
+    @PreAuthorize("@ss.hasPermi('ccdi:purchaseTransaction:import')")
+    @GetMapping("/importFailures/{taskId}")
+    public AjaxResult getImportFailures(@PathVariable String taskId) {
+        List<ImportFailureVO> failures = transactionImportService.getImportFailures(taskId);
+        return success(failures);
+    }
+}