springboot+easypoi excel表格多个sheet导出

实体，每个实体一样，加注解就行。

/*** @author lnxu* @date 2021/12/2 19:13* 就餐次数统计：*/
@Data
@ExcelTarget("mealTimesByCount")
public class MealTimesByCount {@Excel(name = "部门", width = 20,orderNum = "0")private String dept ;@Excel(name = "姓名", width = 20,orderNum = "1")private String name ;@Excel(name = "总数", width = 20,orderNum = "2")private String count ;}

pom.xml添加

<!--excel表格导入导出--><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-base</artifactId><version>3.0.3</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-web</artifactId><version>3.0.3</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-annotation</artifactId><version>3.0.3</version></dependency>

调用方式

package com.tendyron.acs.adaptor.oa.controller.accessExcel;import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import com.tendyron.acs.adaptor.oa.controller.accessExcel.resultDto.MealTimesByCount;
import com.tendyron.acs.adaptor.oa.controller.accessExcel.resultDto.MealTimesByDay;
import com.tendyron.acs.adaptor.oa.controller.accessExcel.resultDto.MealTimesDetail;
import com.tendyron.acs.adaptor.oa.dao.tdr.repository.AccessLogEntityRepository;
import lombok.extern.slf4j.Slf4j;import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;import java.io.FileOutputStream;
import java.net.InetAddress;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;
import java.util.*;
import java.util.stream.Collectors;/*** @author lnxu* @date 2021/12/2 19:13* 用餐统计*/
@Slf4j
@RestController
@RequestMapping("/excel/")
public class AccessExcelController {@ResourceAccessLogEntityRepository accessLogEntityRepository;@Value("${excel.path}")private String excelPath;@Value("${server.port}")private String port;public String getDateTimeFormatter(LocalDateTime time){DateTimeFormatter dateTimeFormatter =  DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");return dateTimeFormatter.format(time);}public String getStartDateTime(){LocalDateTime now = LocalDateTime.now().plusDays(-10L);return getDateTimeFormatter(LocalDateTime.of(LocalDate.from(now.with(TemporalAdjusters.firstDayOfMonth())), LocalTime.MIN));}public String getEndDateTime(){LocalDateTime now = LocalDateTime.now().plusDays(-10L);return getDateTimeFormatter(LocalDateTime.of(LocalDate.from(now.with(TemporalAdjusters.lastDayOfMonth())), LocalTime.MAX));}public List<MealTimesByCount> getCount(List<Map<String,Object>> mealTimesByCountMap){List<MealTimesByCount> list = new ArrayList<>();mealTimesByCountMap.stream().forEach(m -> {MealTimesByCount  mealTimesByCount= new MealTimesByCount();mealTimesByCount.setCount(m.get("count").toString());mealTimesByCount.setDept(m.get("dept").toString());mealTimesByCount.setName(m.get("name").toString());list.add(mealTimesByCount);});return list;}public List<MealTimesByDay> getDay(List<Map<String,Object>> mealTimesByDayMap){List<MealTimesByDay> mealTimesByDays = mealTimesByDayMap.stream().map(m -> {MealTimesByDay mealTimesByDay = new MealTimesByDay();mealTimesByDay.setDay(LocalDate.parse(m.getOrDefault("day", "").toString()));mealTimesByDay.setCount(m.getOrDefault("count", "").toString());return mealTimesByDay;}).collect(Collectors.toList());return mealTimesByDays;}public List<MealTimesDetail> getDetail(List<Map<String,Object>> mealTimesDetailMap){List<MealTimesDetail> mealTimesDetailList = mealTimesDetailMap.stream().map(m -> {MealTimesDetail mealTimesDetail = new MealTimesDetail();mealTimesDetail.setDept(m.getOrDefault("dept", "").toString());mealTimesDetail.setName(m.getOrDefault("name", "").toString());mealTimesDetail.setOpenTime(m.getOrDefault("openTime", "").toString().substring(0,19));mealTimesDetail.setStaffNo(m.getOrDefault("staffNo", "").toString());return mealTimesDetail;}).collect(Collectors.toList());return mealTimesDetailList;}public String getLastMonth(String title){LocalDate localDate = LocalDate.now().plusDays(-10L);return localDate.toString().substring(0,7)+'月'+title;}public String createExcel(String fileName, Class<?> pojoClass, Collection<?> dataSet){try {ExportParams params = new ExportParams(getLastMonth(fileName), "sheetName1", ExcelType.XSSF);Workbook workbook = ExcelExportUtil.exportExcel(params,pojoClass,dataSet);FileOutputStream fos = new FileOutputStream(excelPath+"/"+getLastMonth(fileName)+".xls");workbook.write(fos);fos.close();return "http://"+InetAddress.getLocalHost().getHostAddress()+":"+port +"/excel/"+getLastMonth(fileName)+".xls";} catch (Exception e) {log.error(e.getMessage());return getLastMonth(fileName)+"下载失败。";}}@PostMapping(value = "/mealTimes")public String createManySheetExcel(){List<Map<String ,Object>> list = new ArrayList<>();List<Map<String,Object>> lunchMealTimesByCount = accessLogEntityRepository.lunchMealTimesByCount(getStartDateTime(),getEndDateTime());List<MealTimesByCount> mealTimesByCountList = getCount(lunchMealTimesByCount);ExportParams lunchMealTimesByCountParams = new ExportParams("中午就餐次数统计", "中午就餐次数统计", ExcelType.XSSF);Map<String,Object> lunchMealTimesByCountMap = new HashMap<>();lunchMealTimesByCountMap.put("title",lunchMealTimesByCountParams);lunchMealTimesByCountMap.put("entity",MealTimesByCount.class);lunchMealTimesByCountMap.put("data",mealTimesByCountList);list.add(lunchMealTimesByCountMap);List<Map<String,Object>> lunchMealTimesByDay = accessLogEntityRepository.lunchMealTimesByDay(getStartDateTime(),getEndDateTime());List<MealTimesByDay> mealTimesByDayList = getDay(lunchMealTimesByDay);ExportParams lunchMealTimesByDayParams = new ExportParams("中午就餐次数按天统计", "中午就餐次数按天统计", ExcelType.XSSF);Map<String,Object> lunchMealTimesByDayMap = new HashMap<>();lunchMealTimesByDayMap.put("title",lunchMealTimesByDayParams);lunchMealTimesByDayMap.put("entity",MealTimesByDay.class);lunchMealTimesByDayMap.put("data",mealTimesByDayList);list.add(lunchMealTimesByDayMap);List<Map<String,Object>> lunchMealTimesDetail = accessLogEntityRepository.lunchMealTimesDetail(getStartDateTime(),getEndDateTime());List<MealTimesDetail> mealTimesDetailList = getDetail(lunchMealTimesDetail);ExportParams lunchMealTimesDetailParams = new ExportParams("中午就餐详情", "中午就餐详情", ExcelType.XSSF);Map<String,Object> lunchMealTimesDetailMap = new HashMap<>();lunchMealTimesDetailMap.put("title",lunchMealTimesDetailParams);lunchMealTimesDetailMap.put("entity",MealTimesDetail.class);lunchMealTimesDetailMap.put("data",mealTimesDetailList);list.add(lunchMealTimesDetailMap);List<Map<String,Object>> dinnerMealTimesByCount = accessLogEntityRepository.dinnerMealTimesByCount(getStartDateTime(),getEndDateTime());List<MealTimesByCount> dinnerMMealTimesByCountList = getCount(dinnerMealTimesByCount);ExportParams dinnerMealTimesByCountParams = new ExportParams("晚餐次数统计", "晚餐次数统计", ExcelType.XSSF);Map<String,Object> dinnerMealTimesByCountMap = new HashMap<>();dinnerMealTimesByCountMap.put("title",dinnerMealTimesByCountParams);dinnerMealTimesByCountMap.put("entity",MealTimesByCount.class);dinnerMealTimesByCountMap.put("data",dinnerMMealTimesByCountList);list.add(dinnerMealTimesByCountMap);List<Map<String,Object>> dinnerMealTimesByDay = accessLogEntityRepository.dinnerMealTimesByDay(getStartDateTime(),getEndDateTime());List<MealTimesByDay> dinnerMealTimesByDayList = getDay(dinnerMealTimesByDay);ExportParams dinnerMealTimesByDayParams = new ExportParams("晚餐次数按天统计", "晚餐次数按天统计", ExcelType.XSSF);Map<String,Object> dinnerMealTimesByDayMap = new HashMap<>();dinnerMealTimesByDayMap.put("title",dinnerMealTimesByDayParams);dinnerMealTimesByDayMap.put("entity",MealTimesByDay.class);dinnerMealTimesByDayMap.put("data",dinnerMealTimesByDayList);list.add(dinnerMealTimesByDayMap);List<Map<String,Object>> dinnerMealTimesDetail = accessLogEntityRepository.dinnerMealTimesDetail(getStartDateTime(),getEndDateTime());List<MealTimesDetail> dinnerMealTimesDetailList = getDetail(dinnerMealTimesDetail);ExportParams dinnerMealTimesDetailParams = new ExportParams("晚餐详情", "晚餐详情", ExcelType.XSSF);Map<String,Object> dinnerMealTimesDetailMap = new HashMap<>();dinnerMealTimesDetailMap.put("title",dinnerMealTimesDetailParams);dinnerMealTimesDetailMap.put("entity",MealTimesDetail.class);dinnerMealTimesDetailMap.put("data",dinnerMealTimesDetailList);list.add(dinnerMealTimesDetailMap);return createManySheetExcel(list);}public String createManySheetExcel(List<Map<String,Object>> list){try {Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.XSSF);FileOutputStream fos = new FileOutputStream(excelPath+"/"+getLastMonth("就餐统计")+".xlsx");workbook.write(fos);fos.close();return "http://"+InetAddress.getLocalHost().getHostAddress()+":"+port +"/excel/"+getLastMonth("就餐统计")+".xlsx";} catch (Exception e) {log.error(e.getMessage());return getLastMonth("就餐统计")+"下载失败。";}}
}

调用的方法

Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.XSSF);FileOutputStream fos = new FileOutputStream(excelPath+"/"+getLastMonth("就餐统计")+".xlsx");workbook.write(fos);fos.close();

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