feat(document): 添加附件变更控制字段并优化文档上传逻辑

- 新增 fileChanged 字段用于控制附件信息更新
- 移除控制器中的时间戳和上传人设置逻辑
- 在更新操作中添加条件判断避免误更新附件信息
- 实现 refreshUploadInfo 方法统一处理上传信息
- 优化数据库映射文件中的条件更新逻辑
- 集成 SecurityUtils 和 DateUtils 工具类
- 完善附件路径为空时的清理机制

aucma-base/src/main/java/com/aucma/base/controller/StandardDocumentController.java

@@ -3,7 +3,6 @@ package com.aucma.base.controller;
 import java.util.List;
 import javax.servlet.http.HttpServletResponse;
 
-import com.aucma.common.utils.DateUtils;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -56,9 +55,6 @@ public class StandardDocumentController extends BaseController {
     @Log(title = "标准文档" , businessType = BusinessType.INSERT)
     @PostMapping
     public AjaxResult add(@RequestBody StandardDocument standardDocument) {
-        standardDocument.setUploader(getUsername());
-        standardDocument.setUploadTime(DateUtils.getNowDate());
-        standardDocument.setCreatedTime(DateUtils.getNowDate());
         return toAjax(standardDocumentService.insertStandardDocument(standardDocument));
     }
 
@@ -66,7 +62,6 @@ public class StandardDocumentController extends BaseController {
     @Log(title = "标准文档" , businessType = BusinessType.UPDATE)
     @PutMapping
     public AjaxResult edit(@RequestBody StandardDocument standardDocument) {
-        standardDocument.setUpdatedTime(DateUtils.getNowDate());
         return toAjax(standardDocumentService.updateStandardDocument(standardDocument));
     }
 

aucma-base/src/main/java/com/aucma/base/domain/StandardDocument.java

@@ -37,6 +37,9 @@ public class StandardDocument extends BaseEntity {
     @Excel(name = "文档大小")
     private Long documentSize;
 
+    /** 附件是否被前端显式变更，仅用于更新时控制空值落库 */
+    private Boolean fileChanged;
+
     @Excel(name = "上传人")
     private String uploader;
 
@@ -138,6 +141,14 @@ public class StandardDocument extends BaseEntity {
         this.documentSize = documentSize;
     }
 
+    public Boolean getFileChanged() {
+        return fileChanged;
+    }
+
+    public void setFileChanged(Boolean fileChanged) {
+        this.fileChanged = fileChanged;
+    }
+
     public String getUploader() {
         return uploader;
     }
@@ -214,6 +225,7 @@ public class StandardDocument extends BaseEntity {
                 .append("versionNo", getVersionNo())
                 .append("documentPath", getDocumentPath())
                 .append("documentSize", getDocumentSize())
+                .append("fileChanged", getFileChanged())
                 .append("uploader", getUploader())
                 .append("uploadTime", getUploadTime())
                 .append("effectiveDate", getEffectiveDate())

aucma-base/src/main/java/com/aucma/base/service/impl/StandardDocumentServiceImpl.java

@@ -1,8 +1,14 @@
 package com.aucma.base.service.impl;
 
+import java.util.Date;
 import java.util.List;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+
+import com.aucma.common.utils.DateUtils;
+import com.aucma.common.utils.SecurityUtils;
+import com.aucma.common.utils.StringUtils;
 import com.aucma.base.mapper.StandardDocumentMapper;
 import com.aucma.base.domain.StandardDocument;
 import com.aucma.base.service.IStandardDocumentService;
@@ -24,11 +30,20 @@ public class StandardDocumentServiceImpl implements IStandardDocumentService {
 
     @Override
     public int insertStandardDocument(StandardDocument standardDocument) {
+        Date now = DateUtils.getNowDate();
+        standardDocument.setCreatedTime(now);
+        refreshUploadInfo(standardDocument, now);
         return standardDocumentMapper.insertStandardDocument(standardDocument);
     }
 
     @Override
     public int updateStandardDocument(StandardDocument standardDocument) {
+        Date now = DateUtils.getNowDate();
+        standardDocument.setUpdatedTime(now);
+        if (Boolean.TRUE.equals(standardDocument.getFileChanged())) {
+            // 只有前端明确声明附件变更时，才刷新或清空上传元数据，避免普通字段编辑误伤附件信息。
+            refreshUploadInfo(standardDocument, now);
+        }
         return standardDocumentMapper.updateStandardDocument(standardDocument);
     }
 
@@ -41,4 +56,16 @@ public class StandardDocumentServiceImpl implements IStandardDocumentService {
     public int deleteStandardDocumentByObjId(Long objId) {
         return standardDocumentMapper.deleteStandardDocumentByObjId(objId);
     }
+
+    private void refreshUploadInfo(StandardDocument standardDocument, Date operateTime) {
+        if (StringUtils.isNotBlank(standardDocument.getDocumentPath())) {
+            // 上传人与上传时间必须和当前实际附件保持一致，后续版本追溯才有意义。
+            standardDocument.setUploader(SecurityUtils.getUsername());
+            standardDocument.setUploadTime(operateTime);
+            return;
+        }
+        standardDocument.setUploader(null);
+        standardDocument.setUploadTime(null);
+        standardDocument.setDocumentSize(null);
+    }
 }

aucma-base/src/main/resources/mapper/base/StandardDocumentMapper.xml

@@ -103,10 +103,10 @@
             <if test="productCode != null">"product_code" = #{productCode},</if>
             <if test="productName != null">"product_name" = #{productName},</if>
             <if test="versionNo != null">"version_no" = #{versionNo},</if>
-            <if test="documentPath != null">"document_path" = #{documentPath},</if>
-            <if test="documentSize != null">"document_size" = #{documentSize},</if>
-            <if test="uploader != null">"uploader" = #{uploader},</if>
-            <if test="uploadTime != null">"upload_time" = #{uploadTime},</if>
+            <if test="documentPath != null or fileChanged == true">"document_path" = #{documentPath},</if>
+            <if test="documentSize != null or fileChanged == true">"document_size" = #{documentSize},</if>
+            <if test="uploader != null or fileChanged == true">"uploader" = #{uploader},</if>
+            <if test="uploadTime != null or fileChanged == true">"upload_time" = #{uploadTime},</if>
             <if test="effectiveDate != null">"effective_date" = #{effectiveDate},</if>
             <if test="expiryDate != null">"expiry_date" = #{expiryDate},</if>
             <if test="status != null">"status" = #{status},</if>