1. 新建统一的查询用户名称工具类

2. 新增业务附件带 url 查询返回 创建人信息

zt-framework/zt-common/src/main/java/com/zt/plat/framework/common/util/user/UserNameEnrichUtils.java

@@ -0,0 +1,123 @@
+package com.zt.plat.framework.common.util.user;
+
+import cn.hutool.core.collection.CollUtil;
+
+import java.util.*;
+import java.util.function.BiConsumer;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+/**
+ * 用户名称填充工具类
+ * 通用的用户信息填充工具，可在各个模块中使用
+ * 
+ * @author ZT
+ */
+public class UserNameEnrichUtils {
+
+    /**
+     * 批量设置创建人名称
+     * 
+     * @param items 需要设置创建人名称的对象列表
+     * @param creatorExtractor 创建人ID提取器
+     * @param creatorNameSetter 创建人名称设置器
+     * @param userNicknameProvider 用户昵称提供者函数
+     */
+    public static <T> void setCreatorNames(List<T> items, 
+                                         Function<T, String> creatorExtractor, 
+                                         BiConsumer<T, String> creatorNameSetter,
+                                         Function<Collection<Long>, Map<Long, String>> userNicknameProvider) {
+        if (CollUtil.isEmpty(items) || userNicknameProvider == null) {
+            return;
+        }
+
+        // 提取所有创建人ID
+        Set<Long> creatorIds = items.stream()
+                .map(creatorExtractor)
+                .filter(Objects::nonNull)
+                .filter(creator -> !creator.isEmpty())
+                .map(creatorId -> {
+                    try {
+                        return Long.parseLong(creatorId);
+                    } catch (NumberFormatException e) {
+                        return null;
+                    }
+                })
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+
+        if (creatorIds.isEmpty()) {
+            return;
+        }
+
+        // 批量获取用户昵称
+        Map<Long, String> userNicknameMap = userNicknameProvider.apply(creatorIds);
+
+        // 设置创建人名称
+        items.forEach(item -> {
+            String creatorId = creatorExtractor.apply(item);
+            if (creatorId != null && !creatorId.isEmpty()) {
+                try {
+                    Long id = Long.parseLong(creatorId);
+                    String nickname = userNicknameMap.get(id);
+                    if (nickname != null) {
+                        creatorNameSetter.accept(item, nickname);
+                    }
+                } catch (NumberFormatException e) {
+                    // 忽略无效的ID格式
+                }
+            }
+        });
+    }
+
+    /**
+     * 设置单个对象的创建人名称
+     * 直接复用批量设置的逻辑
+     * 
+     * @param item 需要设置创建人名称的对象
+     * @param creatorExtractor 创建人ID提取器
+     * @param creatorNameSetter 创建人名称设置器
+     * @param userNicknameProvider 用户昵称提供者函数
+     */
+    public static <T> void setCreatorName(T item, 
+                                        Function<T, String> creatorExtractor,
+                                        BiConsumer<T, String> creatorNameSetter,
+                                        Function<Collection<Long>, Map<Long, String>> userNicknameProvider) {
+        if (item == null) {
+            return;
+        }
+        // 直接复用批量设置的逻辑
+        setCreatorNames(Collections.singletonList(item), creatorExtractor, creatorNameSetter, userNicknameProvider);
+    }
+
+    /**
+     * 创建通用的用户昵称提供者
+     * 这是一个通用的实现，可以直接在各个模块中使用
+     * 
+     * @param userDataProvider 用户数据提供者，接收用户ID集合，返回用户数据Map
+     * @param nicknameExtractor 从用户数据中提取昵称的函数
+     * @return 用户昵称提供者函数
+     */
+    public static <UserData> Function<Collection<Long>, Map<Long, String>> createUserNicknameProvider(
+            Function<Collection<Long>, Map<Long, UserData>> userDataProvider,
+            Function<UserData, String> nicknameExtractor) {
+        return userIds -> {
+            if (CollUtil.isEmpty(userIds)) {
+                return Collections.emptyMap();
+            }
+            
+            Map<Long, UserData> userDataMap = userDataProvider.apply(userIds);
+            if (userDataMap == null || userDataMap.isEmpty()) {
+                return Collections.emptyMap();
+            }
+            
+            return userDataMap.entrySet().stream()
+                    .filter(entry -> entry.getValue() != null)
+                    .collect(Collectors.toMap(
+                            Map.Entry::getKey,
+                            entry -> nicknameExtractor.apply(entry.getValue()),
+                            (existing, replacement) -> existing // 处理重复key的情况
+                    ));
+        };
+    }
+}

zt-module-infra/zt-module-infra-api/src/main/java/com/zt/plat/module/infra/api/businessfile/dto/BusinessFileWithUrlRespDTO.java

@@ -46,4 +46,14 @@ public class BusinessFileWithUrlRespDTO extends BusinessFileRespDTO {
      */
     private Integer fileSize;
 
+    /**
+     * 创建人
+     */
+    private String creator;
+
+    /**
+     * 创建人名称
+     */
+    private String creatorName;
+
 }

zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileRespVO.java

@@ -1,11 +1,11 @@
 package com.zt.plat.module.infra.controller.admin.businessfile.vo;
 
+import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
+import com.alibaba.excel.annotation.ExcelProperty;
 import io.swagger.v3.oas.annotations.media.Schema;
-import lombok.*;
+import lombok.Data;
-import java.util.*;
+
-import org.springframework.format.annotation.DateTimeFormat;
 import java.time.LocalDateTime;
-import com.alibaba.excel.annotation.*;
 
 @Schema(description = "管理后台 - 业务附件关联 Response VO")
 @Data
@@ -40,4 +40,10 @@ public class BusinessFileRespVO {
     @ExcelProperty("创建时间")
     private LocalDateTime createTime;
 
+    @Schema(description = "创建人", example = "1024")
+    private String creator;
+
+    @Schema(description = "创建人名称", example = "张三")
+    private String creatorName;
+
 }

zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/businessfile/vo/BusinessFileWithUrlRespVO.java

@@ -43,6 +43,9 @@ public class BusinessFileWithUrlRespVO extends BusinessFileRespVO {
     @Schema(description = "文件大小", example = "2048")
     private Integer fileSize;
 
+    @Schema(description = "创建人名称", example = "张三")
+    private String creatorName;
+
     /**
      * 获取文件 URL（参考 FileRespVO 的实现）
      */

zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/businessfile/BusinessFileServiceImpl.java

@@ -3,14 +3,18 @@ package com.zt.plat.module.infra.service.businessfile;
 import cn.hutool.core.collection.CollUtil;
 import com.zt.plat.framework.common.pojo.PageResult;
 import com.zt.plat.framework.common.util.object.BeanUtils;
+import com.zt.plat.framework.common.util.user.UserNameEnrichUtils;
 import com.zt.plat.framework.mybatis.core.query.LambdaQueryWrapperX;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFilePageReqVO;
+import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFileRespVO;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFileSaveReqVO;
 import com.zt.plat.module.infra.controller.admin.businessfile.vo.BusinessFileWithUrlRespVO;
 import com.zt.plat.module.infra.dal.dataobject.businessfile.BusinessFileDO;
 import com.zt.plat.module.infra.dal.dataobject.file.FileDO;
 import com.zt.plat.module.infra.dal.mysql.businessfile.BusinessFileMapper;
 import com.zt.plat.module.infra.service.file.FileService;
+import com.zt.plat.module.system.api.user.AdminUserApi;
+import com.zt.plat.module.system.api.user.dto.AdminUserRespDTO;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -35,6 +39,9 @@ public class BusinessFileServiceImpl implements BusinessFileService {
     @Resource
     private FileService fileService;
 
+    @Resource
+    private AdminUserApi adminUserApi;
+
     @Override
     public Long createBusinessFile(BusinessFileSaveReqVO createReqVO) {
         // 插入
@@ -97,13 +104,40 @@ public class BusinessFileServiceImpl implements BusinessFileService {
         PageResult<BusinessFileDO> pageResult = getBusinessFilePage(pageReqVO);
         PageResult<BusinessFileWithUrlRespVO> result = BeanUtils.toBean(pageResult, BusinessFileWithUrlRespVO.class);
 
-        // 批量获取文件信息并设置URL
+        if (CollUtil.isEmpty(result.getList())) {
-        List<Long> fileIds = result.getList().stream()
+            return result;
+        }
+
+        // 批量设置文件信息
+        setFileInfo(result.getList());
+        
+        // 批量设置创建人名称
+        UserNameEnrichUtils.setCreatorNames(result.getList(),
+                BusinessFileRespVO::getCreator,
+                BusinessFileWithUrlRespVO::setCreatorName,
+                UserNameEnrichUtils.createUserNicknameProvider(
+                        userIds -> adminUserApi.getUserMap(userIds),
+                        AdminUserRespDTO::getNickname
+                ));
+
+        return result;
+    }
+
+    /**
+     * 批量设置文件信息
+     */
+    private void setFileInfo(List<BusinessFileWithUrlRespVO> voList) {
+        // 批量获取文件信息
+        List<Long> fileIds = voList.stream()
                 .map(BusinessFileWithUrlRespVO::getFileId)
                 .filter(Objects::nonNull)
                 .distinct()
                 .toList();
 
+        if (fileIds.isEmpty()) {
+            return;
+        }
+
         // 批量查询文件信息
         Map<Long, FileDO> fileMap = new HashMap<>();
         for (Long fileId : fileIds) {
@@ -114,7 +148,7 @@ public class BusinessFileServiceImpl implements BusinessFileService {
         }
 
         // 设置文件相关信息
-        for (BusinessFileWithUrlRespVO vo : result.getList()) {
+        voList.forEach(vo -> {
             if (vo.getFileId() != null) {
                 FileDO fileDO = fileMap.get(vo.getFileId());
                 if (fileDO != null) {
@@ -125,8 +159,7 @@ public class BusinessFileServiceImpl implements BusinessFileService {
                     vo.setFileSize(fileDO.getSize());
                 }
             }
-        }
+        });
-        return result;
     }
 
     @Override