feat(oa): 关联用户信息并扩展问题VO实体

- 在 OaExpressQuestionServiceImpl 中根据 createBy 字段关联查询用户昵称
-为 OaExpressQuestionVo 添加 nickName 字段用于展示创建人昵称
- 修改 OaExpressQuestionVo 继承 BaseEntity 以支持基础字段
- 引入 ISysUserService 和 SysUser 实现用户信息查询逻辑
- 使用 Stream 对 createBy 去重后批量查询用户减少数据库访问次数

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/OaExpressQuestionVo.java

@@ -6,6 +6,7 @@ import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
 import com.alibaba.excel.annotation.ExcelProperty;
 import com.ruoyi.common.annotation.ExcelDictFormat;
 import com.ruoyi.common.convert.ExcelDictConvert;
+import com.ruoyi.common.core.domain.BaseEntity;
 import lombok.Data;
 import java.util.Date;
 
@@ -19,7 +20,7 @@ import java.util.Date;
  */
 @Data
 @ExcelIgnoreUnannotated
-public class OaExpressQuestionVo {
+public class OaExpressQuestionVo extends BaseEntity {
 
     private static final long serialVersionUID = 1L;
 
@@ -70,5 +71,7 @@ public class OaExpressQuestionVo {
      */
     private String expressCode;
 
+    private String nickName;
+
 
 }

ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaExpressQuestionServiceImpl.java

@@ -2,6 +2,7 @@ package com.ruoyi.oa.service.impl;
 
 import cn.hutool.core.bean.BeanUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.ruoyi.common.core.domain.entity.SysUser;
 import com.ruoyi.common.helper.LoginHelper;
 import com.ruoyi.common.utils.StringUtils;
 import com.ruoyi.common.core.page.TableDataInfo;
@@ -9,6 +10,7 @@ import com.ruoyi.common.core.domain.PageQuery;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.ruoyi.system.service.ISysUserService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import com.ruoyi.oa.domain.bo.OaExpressQuestionBo;
@@ -20,6 +22,7 @@ import com.ruoyi.oa.service.IOaExpressQuestionService;
 import java.util.List;
 import java.util.Map;
 import java.util.Collection;
+import java.util.stream.Collectors;
 
 /**
  * 快递问题Service业务层处理
@@ -32,6 +35,7 @@ import java.util.Collection;
 public class OaExpressQuestionServiceImpl implements IOaExpressQuestionService {
 
     private final OaExpressQuestionMapper baseMapper;
+    private final ISysUserService userService;
 
     /**
      * 查询快递问题
@@ -48,6 +52,25 @@ public class OaExpressQuestionServiceImpl implements IOaExpressQuestionService {
     public TableDataInfo<OaExpressQuestionVo> queryPageList(OaExpressQuestionBo bo, PageQuery pageQuery) {
         QueryWrapper<OaExpressQuestion> lqw = buildQueryWrapperPlus(bo);
         Page<OaExpressQuestionVo> result = baseMapper.selectVoPagePlus(pageQuery.build(), lqw);
+        //需要根据这个createBy字段去关联用户表获取用户名称，可以在这里处理，也可以在mapper.xml中处理
+        List<String> createByList = result.getRecords().stream()
+                .map(OaExpressQuestionVo::getCreateBy)
+                .distinct() // 去重，减少查询次数
+                .collect(Collectors.toList());
+        if (!createByList.isEmpty()) {
+            // 循环调用 selectUserByUserName 方法
+            for (String userName : createByList) {
+                SysUser user = userService.selectUserByUserName(userName);
+                if (user != null) {
+                    // 为所有匹配的记录设置昵称
+                    for (OaExpressQuestionVo item : result.getRecords()) {
+                        if (userName.equals(item.getCreateBy())) {
+                            item.setNickName(user.getNickName());
+                        }
+                    }
+                }
+            }
+        }
         return TableDataInfo.build(result);
     }