refactor(system): 优化日志实例导出功能

- 使用 EasyExcel 替代 ExcelUtils 写入 Excel 文件
- 添加单元格合并功能
- 优化表格样式，包括列宽自适应、居中对齐等
-增加部门编号筛选条件
- 调整日志数据查询逻辑，提高效率

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/admin/worklog/LogInstanceController.java

@@ -2,10 +2,8 @@ package cn.iocoder.yudao.module.system.controller.admin.worklog;
 
 import cn.hutool.core.collection.CollectionUtil;
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
-import cn.iocoder.yudao.framework.common.pojo.PageParam;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.framework.datapermission.core.annotation.DataPermission;
-import cn.iocoder.yudao.framework.excel.core.util.ExcelUtils;
 import cn.iocoder.yudao.framework.operatelog.core.annotations.OperateLog;
 import cn.iocoder.yudao.module.system.controller.admin.dept.vo.dept.DeptRespVO;
 import cn.iocoder.yudao.module.system.controller.admin.user.vo.user.UserRespVO;
@@ -21,10 +19,20 @@ import cn.iocoder.yudao.module.system.service.user.AdminUserService;
 import cn.iocoder.yudao.module.system.service.worklog.LogInstanceService;
 import cn.iocoder.yudao.module.system.service.worklog.LogReadService;
 import cn.iocoder.yudao.module.system.service.worklog.LogUseService;
+import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.converters.longconverter.LongStringConverter;
+import com.alibaba.excel.support.ExcelTypeEnum;
+import com.alibaba.excel.write.builder.ExcelWriterBuilder;
+import com.alibaba.excel.write.merge.OnceAbsoluteMergeStrategy;
+import com.alibaba.excel.write.metadata.style.WriteCellStyle;
+import com.alibaba.excel.write.style.HorizontalCellStyleStrategy;
+import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import org.apache.poi.ss.usermodel.HorizontalAlignment;
+import org.apache.poi.ss.usermodel.VerticalAlignment;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
@@ -33,10 +41,9 @@ import javax.annotation.Resource;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.Valid;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
@@ -310,8 +317,65 @@ public class LogInstanceController {
                                        HttpServletResponse response) throws IOException {
 
         List<LogExportExcelVO> list = logInstanceService.getLogInstanceExport(reqVO);
-        // 导出 Excel
-        ExcelUtils.write(response, "日志实例的拓展.xls", "数据", LogExportExcelVO.class,
-                list);
+
+
+        // 输出excel
+        ExcelWriterBuilder writer = EasyExcel.write(response.getOutputStream(), LogExportExcelVO.class);
+
+        List<OnceAbsoluteMergeStrategy> strategies = getMergeStrategy(list);
+        strategies.forEach(writer::registerWriteHandler);
+
+        writer.autoCloseStream(false); // 不要自动关闭，交给 Servlet 自己处理
+        writer.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()); // 基于 column 长度，自动适配。最大 255 宽度
+        writer.registerWriteHandler(new HorizontalCellStyleStrategy(getHeadStyle(), getContentStyle()));
+        writer.registerConverter(new LongStringConverter()); // 避免 Long 类型丢失精度
+        writer.excelType(ExcelTypeEnum.XLS);
+        writer.sheet("数据").doWrite(list);
+
+        // 设置 header 和 contentType。写在最后的原因是，避免报错时，响应 contentType 已经被修改了
+        response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("日志实例的拓展.xls", StandardCharsets.UTF_8.name()));
+        response.setContentType("application/vnd.ms-excel;charset=UTF-8");
+
+
+//        // 导出 Excel
+//        ExcelUtils.write(response, "日志实例的拓展.xls", "数据", LogExportExcelVO.class,
+//                list);
+    }
+
+    public static List<OnceAbsoluteMergeStrategy> getMergeStrategy(List<LogExportExcelVO> dataList) {
+        List<OnceAbsoluteMergeStrategy> strategies = new ArrayList<>();
+        List<Integer> mergeCols = Arrays.asList(0, 1); // 需要合并的列索引
+
+        // 遍历数据，生成合并区间
+        for (int i = 0; i < dataList.size(); i++) {
+            if (i > 0 && dataList.get(i).getNickname().equals(dataList.get(i - 1).getNickname()) && dataList.get(i).getTime().equals(dataList.get(i - 1).getTime())) {
+                continue;
+            }
+            int startRow = i + 1;
+            while (i < dataList.size() - 1 && dataList.get(i).getNickname().equals(dataList.get(i + 1).getNickname()) && dataList.get(i).getTime().equals(dataList.get(i + 1).getTime())) {
+                i++;
+            }
+            for (int col : mergeCols) {
+                strategies.add(new OnceAbsoluteMergeStrategy(startRow, i + 1, col, col));
+            }
+        }
+        return strategies;
+    }
+
+    // 表头样式（居中）
+    public static WriteCellStyle getHeadStyle() {
+        WriteCellStyle headStyle = new WriteCellStyle();
+        headStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
+        headStyle.setVerticalAlignment(VerticalAlignment.CENTER);
+        return headStyle;
+    }
+
+    // 内容样式（居中）
+    public static WriteCellStyle getContentStyle() {
+        WriteCellStyle contentStyle = new WriteCellStyle();
+        contentStyle.setWrapped(true);  // 启用自动换行
+        contentStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
+        contentStyle.setVerticalAlignment(VerticalAlignment.CENTER);
+        return contentStyle;
     }
 }

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/admin/worklog/vo/loginstance/LogExportExcelVO.java

@@ -1,7 +1,5 @@
 package cn.iocoder.yudao.module.system.controller.admin.worklog.vo.loginstance;
 
-import cn.iocoder.yudao.framework.common.validation.IdCard;
-import cn.iocoder.yudao.framework.common.validation.Mobile;
 import com.alibaba.excel.annotation.ExcelProperty;
 import lombok.AllArgsConstructor;
 import lombok.Builder;

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/admin/worklog/vo/loginstance/LogExportVO.java

@@ -7,6 +7,9 @@ import lombok.Data;
 @Data
 public class LogExportVO {
 
+    @Schema(description = "部门编号")
+    private Long companyDeptId;
+
     @Schema(description = "日志模版编号")
     private Long formId;
 

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/service/worklog/LogInstanceServiceImpl.java

@@ -142,7 +142,8 @@ public class LogInstanceServiceImpl implements LogInstanceService {
                 List<LogReadUserRespDTO> respDTOS = logInstanceMapper.selectRaedUser(userId, adminUserDO.getDeptId());
 
                 //特殊情况， 日志发起人为研发部时 手动添加查看者
-                if (adminUserDO.getDeptId() == 128L && adminUserDO.getId() != 126L) {
+                List<Long> deptIds = convertList(deptService.getChildDept(128L), DeptDO::getId);
+                if (deptIds.contains(adminUserDO.getDeptId()) && adminUserDO.getId() != 126L) {
 
                     LogReadUserRespDTO dto = new LogReadUserRespDTO();
                     dto.setUserId(126L);
@@ -450,6 +451,7 @@ public class LogInstanceServiceImpl implements LogInstanceService {
     @Override
     public List<LogExportExcelVO> getLogInstanceExport(LogExportVO reqVO) {
         List<LogInstanceDO> list = logInstanceMapper.selectList(new LambdaQueryWrapperX<LogInstanceDO>()
+                .eqIfPresent(LogInstanceDO::getDeptId, reqVO.getCompanyDeptId())
                 .eqIfPresent(LogInstanceDO::getFormId, reqVO.getFormId())
                 .betweenIfPresent(LogInstanceDO::getTime, reqVO.getTime()));
 
@@ -469,16 +471,6 @@ public class LogInstanceServiceImpl implements LogInstanceService {
 
             //遍历
             for (LogInstanceDO item : list) {
-                LogExportExcelVO logExportExcelVO = new LogExportExcelVO();
-
-                // 设置时间
-                logExportExcelVO.setTime(item.getTime());
-
-                //设置发起人用户名称和头像
-                AdminUserDO userDO = userMap.get(item.getStartUserId());
-                if (userDO != null) {
-                    logExportExcelVO.setNickname(userDO.getNickname());
-                }
 
                 //设置日志内部分an
                 LogFormDO logFormDO = formMap.get(item.getFormId());
@@ -496,6 +488,18 @@ public class LogInstanceServiceImpl implements LogInstanceService {
                             continue;
                         }
                         String field = workLogContentJson.getStr(fieldStr);
+
+                        LogExportExcelVO logExportExcelVO = new LogExportExcelVO();
+
+                        // 设置时间
+                        logExportExcelVO.setTime(item.getTime());
+
+                        //设置发起人用户名称和头像
+                        AdminUserDO userDO = userMap.get(item.getStartUserId());
+                        if (userDO != null) {
+                            logExportExcelVO.setNickname(userDO.getNickname());
+                        }
+
                         logExportExcelVO.setTitle(title);
                         logExportExcelVO.setContent(field);