easypoi多级表头多个sheet导出，动态导出列
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一、多级表头和多个sheet
🧐 效果
因为这里是用注解实现的，只有到三级表头，如果表头超过了三级，比如有四级、五级的话，就不建议用注解，还是用模板比较方便。
🍔 代码
多级表头一个是可以用注解实现：@ExcelCollection 和 @Excel 组合使用；还有就是可以用模板实现；还有一种就是用原生poi写，这个就更麻烦了。模板实现就更灵活，很复杂的表格都可以实现，不过就是填充数据比较麻烦。这里先写用注解实现的方式。
1、实体bean
import cn.afterturn.easypoi.excel.annotation.Excel;
import cn.afterturn.easypoi.excel.annotation.ExcelCollection;
import lombok.Data;
import java.util.List;
@Data
public class ExcelExportVo
// 这两个就是一级表头，最后一级表头对应的是具体的某个属性，它们都是被包裹在一级表头下的
@ExcelCollection(name = "用户信息")
private List<UserInfo> userInfoList;
@ExcelCollection(name = "用户角色和权限")
private List<RoleInfo> roleInfoList;
/**
* 用户信息
*/
@Data
public static class UserInfo
// 二级表头可以用 groupName 实现
@Excel(name = "用户账号",width = 20,groupName = "基本信息")
private String userName;
@Excel(name = "用户姓名",width = 20,groupName = "基本信息")
private String realName;
@Excel(name = "手机号码",width = 20,groupName = "基本信息")
private String phone;
@Excel(name = "所在公司",width = 20,groupName = "单位部门")
private String com;
@Excel(name = "所在部门",width = 20,groupName = "单位部门")
private String dept;
public UserInfo(String userName, String realName, String phone, String com, String dept)
this.userName = userName;
this.realName = realName;
this.phone = phone;
this.com = com;
this.dept = dept;
/**
* 用户角色权限
*/
@Data
public static class RoleInfo
@Excel(name = "所属角色名称",width = 20,groupName = "角色")
private String roleName;
@Excel(name = "所属角色代码",width = 20,groupName = "角色")
private String roleCode;
@Excel(name = "菜单权限",width = 40,groupName = "权限")
private String menu;
@Excel(name = "数据权限",width = 40,groupName = "权限")
private String data;
public RoleInfo(String roleName, String roleCode, String menu, String data)
this.roleName = roleName;
this.roleCode = roleCode;
this.menu = menu;
this.data = data;
2、ExcelUtil、ExcelStyleUtil
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.ExcelImportUtil;
import cn.afterturn.easypoi.excel.annotation.Excel;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.ImportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import cn.afterturn.easypoi.excel.entity.params.ExcelExportEntity;
import cn.afterturn.easypoi.excel.entity.result.ExcelImportResult;
import cn.afterturn.easypoi.excel.imports.ExcelImportService;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;
import sun.misc.BASE64Decoder;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.*;
import java.lang.reflect.Field;
import java.net.URLEncoder;
import java.util.*;
/**
* excel操作工具类
*/
public class ExcelUtil
/**
* 偶数行设置背景色
*/
private static void setRowBackground(Workbook workbook)
Sheet sheet = workbook.getSheetAt(0);
CellStyle styles = ExcelStyleUtil.getStyles(workbook,false,(short) 12);
for(int i = 0; i <= sheet.getLastRowNum(); i ++)
Row row = sheet.getRow(i);
if (i%2==0)
for(int j = 0; j < row.getPhysicalNumberOfCells(); j ++)
Cell cell = row.getCell(j);
cell.setCellStyle(styles);
/**
* 导出设置隔行背景色
* @param params 导出参数
* @param list 数据
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param isSetRowBackground 是否设置隔行背景色
*/
public static void exportExcel(ExportParams params, List<?> list, Class<?> pojoClass, String fileName,boolean isSetRowBackground, HttpServletResponse response)
Workbook workbook = ExcelExportUtil.exportExcel(params,pojoClass,list);
if (workbook != null);
if (isSetRowBackground) setRowBackground(workbook);
downLoadExcel(fileName, response, workbook);
/**
* excel 导出
* @param list 数据
* @param title 标题
* @param sheetName sheet名称
* @param pojoClass pojo类型
* @param fileName 文件名称
*/
public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName, HttpServletResponse response)
ExportParams exportParams = new ExportParams(title, sheetName, ExcelType.XSSF);
exportParams.setStyle(ExcelStyleUtil.class);
defaultExport(list, pojoClass, fileName, response, exportParams);
/**
* excel 导出
* @param list 数据
* @param pojoClass pojo类型
* @param fileName 文件名称
*/
public static void exportExcel(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response)
ExportParams exportParams = new ExportParams();
exportParams.setStyle(ExcelStyleUtil.class);
defaultExport(list, pojoClass, fileName, response, exportParams);
/**
* list map 导出
* @param list 数据
* @param fileName 文件名称
*/
public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response)
ExportParams exportParams = new ExportParams();
exportParams.setStyle(ExcelStyleUtil.class);
defaultExport(list, fileName, response);
/**
* 默认的 excel 导出
* @param list 数据
* @param pojoClass pojo类型
* @param fileName 文件名称
* @param exportParams 导出参数
*/
private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams)
Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);
downLoadExcel(fileName, response, workbook);
/**
* 默认的 excel 导出
* @param list 数据
* @param fileName 文件名称
*/
private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response)
Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.XSSF);
downLoadExcel(fileName, response, workbook);
/**
* 下载
* @param fileName 文件名称
* @param response
* @param workbook excel数据
*/
public static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook)
try
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + "." + ExcelTypeEnum.XLS.getValue(), "UTF-8"));
workbook.write(response.getOutputStream());
catch (IOException e)
e.printStackTrace();
/**
* excel 导入
* @param filePath excel文件路径
* @param titleRows 标题行
* @param headerRows 表头行
* @param pojoClass pojo类型
*/
public static <T> List<T> importExcel(String filePath, Integer titleRows, Integer headerRows, Class<T> pojoClass) throws IOException
if (StringUtils.isBlank(filePath))
return null;
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
params.setNeedSave(true);
params.setSaveUrl("/excel/");
try
return ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
catch (NoSuchElementException e)
throw new IOException("模板不能为空");
catch (Exception e)
throw new IOException(e.getMessage());
/**
* excel 导入
* @param file 上传的文件
* @param titleRows 标题行
* @param headerRows 表头行
* @param needVerify 是否检验excel内容
* @param pojoClass pojo类型
*/
public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, boolean needVerify, Class<T> pojoClass) throws IOException
if (file == null)
return null;
try
return importExcel(file.getInputStream(), titleRows, headerRows, needVerify, pojoClass);
catch (Exception e)
throw new IOException(e.getMessage());
/**
* excel 导入
* @param inputStream 文件输入流
* @param titleRows 标题行
* @param headerRows 表头行
* @param needVerify 是否检验excel内容
* @param pojoClass pojo类型
*/
public static <T> List<T> importExcel(InputStream inputStream, Integer titleRows, Integer headerRows, boolean needVerify, Class<T> pojoClass) throws IOException
if (inputStream == null)
return null;
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
params.setSaveUrl("upload/excel/");
params.setNeedSave(true);
params.setNeedVerify(needVerify);
try
return ExcelImportUtil.importExcel(inputStream, pojoClass, params);
catch (NoSuchElementException e)
throw new IOException("excel文件不能为空");
catch (Exception e)
throw new IOException(e.getMessage());
/**
* Excel 类型枚举
*/
enum ExcelTypeEnum
XLS("xls"), XLSX("xlsx");
private String value;
ExcelTypeEnum(String value)
this.value = value;
public String getValue()
return value;
public void setValue(String value)
this.value = value;
/**
* 上传文件，返回一个workbook
* @param file
*/
public static Workbook importExcel(MultipartFile file) throws IOException
File toFile = new File(file.getOriginalFilename());
Workbook workbook = null;
if(toFile.getPath().endsWith("xls"))
workbook = new HSSFWorkbook(file.getInputStream());
else if(toFile.getPath().endsWith("xlsx"))
workbook = new XSSFWorkbook(file.getInputStream());
else
throw new RuntimeException("请确认你上传的文件类型");
return workbook;
/**
* 读取指定sheet的数据
* @param file 上传的文件
* @param sheetName 要读取的sheetName
* @param titleRows 表头行数
* @param headRows 标题行数
* @param startRows 表头之前有多少行不要的数据，从1开始，忽略空行
* @param readRows 要读取多少行数据，从0开始，比如读取十行，值就是9; 不指定时默认为0
* @param pojoClass 实体
*/
public static <T> List<T> importExcel(MultipartFile fileeasypoi导出单个sheet和多个sheet