spring boot 导出数据到excel的操作步骤(demo)

spring boot 导出数据到excel的操作步骤(demo)

目录问题来源：实现步骤：1.添加maven依赖2.编写excel工具类3.编写controller，service，serviceImpl，dao，entity3.1entity3.2dao3.3service3.4serviceImpl3.5controller4.测试

问题来源：

前一段时间公司的项目有个导出数据的需求，要求能够实现全部导出也可以多选批量导出（虽然不是我负责的，我自己研究了研究），我们的项目是xboot前后端分离系统，后端的核心为SpringBoot 2.2.6.RELEASE，因此今天我主要讲述后端的操作实现，为了简化需求，我将需要导出的十几个字段简化为5个字段，导出的样式模板如下：

实现步骤：

打开一个你平时练习使用的springboot的demo，开始按照以下步骤加入代码进行操作。

1.添加maven依赖

org.apache.poi

poi-ooxml

3.11

poi-ooxml是一个excel表格的操作工具包，处理的单页数据量也是百万级别的，因此我们选择的是poi-ooxml.

2.编写excel工具类

import org.apache.poi.ss.usermodel.Cell;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.xssf.streaming.SXSSFWorkbook;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.util.List;

public class ExcelUtil {

/**

* 用户信息导出类

* @param response 响应

* @param fileName 文件名

* @param columnList 每列的标题名

* @param dataList 导出的数据

*/

public static void uploadExcelAboutUser(HttpServletResponse response,String fileName,List columnList,
List> dataList){

//声明输出流

OutputStream os = null;

//设置响应头

setResponseHeader(response,fileName);

try {

//获取输出流

os = response.getOutputStream();

//内存中保留1000条数据，以免内存溢出，其余写入硬盘

SXSSFWorkbook wb = new SXSSFWorkbook(1000);

//获取该工作区的第一个sheet

Sheet sheet1 = wb.createSheet("sheet1");

int excelRow = 0;

//创建标题行

Row titleRow = sheet1.createRow(excelRow++);

for(int XsUpdwoKi = 0;i

//创建该行下的每一列，并写入标题数据

Cell cell = titleRow.createCell(i);

cell.setCellValue(columnList.get(i));

}

//设置内容行

if(dataList!=null && dataList.size()>0){

//序号是从1开始的

int count = 1;

//外层for循环创建行

for(int i = 0;i

Row dataRow = sheet1.createRow(excelRow++);

//内层for循环创建每行对应的列，并赋值

for(int j = -1;j

Cell cell = dataRow.createCell(j+1);

if(j==-1){//第一列是序号列，不是在数据库中读取的数据，因此手动递增赋值

cell.setCellValue(count++);

}else{//其余列是数据列，将数据库中读取到的数据依次赋值

cell.setCellValue(dataList.get(i).get(j));

}

}

}

}

//将整理好的excel数据写入流中

wb.write(os);

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

// 关闭输出流

if (os != null) {

os.close();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

/*

设置浏览器-响应头

*/

private static void setResponseHeader(HttpServletResponse response, String fileName) {

try {

try {

fileName = new String(fileName.getBytes(),"ISO8859-1");

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

response.setContentType("application/octet-stream;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;filename="+ fileName);

response.addHeader("Pargam", "no-cache");

response.addHeader("Cache-Control", "no-cache");

} catch (Exception ex) {

ex.printStackTrace();

}

}

}

网上的excel的工具类有很多，但很多并不是你复制过来就能直接使用的，因此需要我们深究其原理，这样可以应对不同的场景写出属于我们自己的合适的代码，这里就不一一解释了，代码中注释加的很清楚，有不懂的可以留言评论。

3.编写controller，service，serviceImpl，dao，entity

3.1 entity

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;

import org.hibernate.annotations.Where;

import javax.persistence.*;

import java.math.BigDecimal;

@Data

@Entity

@Where(clause = "del_flag = 0")

@Table(name = "t_scf_item_data")

public class ItemData{

private static final long serialVersionUID = 1L;

@Id

@TableId

@ApiModelProperty(value = "唯一标识")

private String id = String.valueOf(SnowFlakeUtil.getFlowIdInstance().nextId());

@ApiModelProperty(value = "创建者")

@CreatedBy

private String createBy;

@CreatedDate

@jsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")

@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

@ApiModelProperty(value = "创建时间")

private Date createTime;

@ApiModelProperty(value = "项目编号")

private String itemNo;

@ApiModelProperty(value = "项目名称")

private String itemName;

@ApiModelProperty(value = "删除标志 默认0")

private Integer delFlag = 0;

}

3.2 dao

import cn.exrick.xboot.modules.item.entity.ItemData;

import org.springframework.data.jpa.repository.Query;

import org.springframework.stereotype.Repository;

import java.util.List;

@Repository

public interface ItemDataDao{

　　@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 limit 5",nativeQuery = true)

List> findAllObject();

@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 and a.id in ?1 limit 5",nativeQuery = true)

List> findByIds(List idList);

}

3.3 service

import javax.servlet.http.HttpServletResponse;

import java.util.List;

public interface TestService {

void exportExcel(List idList, HttpServletResponse response);

}

3.4 serviceImpl

import cn.exrick.xboot.common.utils.ExcelUtil;

import cn.exrick.xboot.modules.item.dao.ItemDataDao;

import cn.exrick.xboot.modules.item.service.TestService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

@Transactional

@Service

public class TestServiceImpl implements TestService {

@Autowired

private ItemDataDao itemDataDao;

@Override

public void exportExcel(List idList, HttpServletResponse response) {

List> dataList = new ArrayList<>();

if(idList == null || idList.size() == 0){

dataList = itemDataDao.findAllObject();

}else{

dataList = itemDataDao.findByIds(idList);

}

List titleList = Arrays.asList("序号","项目编码", "项目名称", "创建时间", "创建人");

ExcelUtil.uploadExcelAboutUser(response,"apply.xlsx",titleList,dataList);

}

}

3.5 controller

import cn.exrick.xboot.modules.item.service.TestService;

import io.swagger.annotations.ApiOperation;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;

import java.util.List;

import java.util.Map;

@Slf4j

@RestController

@RequestMapping("/test")

public class TestController {

@Autowired

private TestService testService;

@RequestMapping(value = "/exportExcel", method = RequestMethod.POST)

@ApiOperation(value = "导出excel",produces="application/octet-stream")

public void exportCorpLoanDemand(@RequestBody Map> map, HttpServletResponse response){ ;

log.info("测试:{}",map);

testService.exportExcel(map.get("list"),response);

}

}

4.测试

测试的话可以使用swagger或者postman，甚至你前端技术足够ok的话也可以写个简单的页面进行测试，我是用的是swaager进行的测试，下面就是我测试的结果了：

//创建该行下的每一列，并写入标题数据

Cell cell = titleRow.createCell(i);

cell.setCellValue(columnList.get(i));

}

//设置内容行

if(dataList!=null && dataList.size()>0){

//序号是从1开始的

int count = 1;

//外层for循环创建行

for(int i = 0;i

Row dataRow = sheet1.createRow(excelRow++);

//内层for循环创建每行对应的列，并赋值

for(int j = -1;j

Cell cell = dataRow.createCell(j+1);

if(j==-1){//第一列是序号列，不是在数据库中读取的数据，因此手动递增赋值

cell.setCellValue(count++);

}else{//其余列是数据列，将数据库中读取到的数据依次赋值

cell.setCellValue(dataList.get(i).get(j));

}

}

}

}

//将整理好的excel数据写入流中

wb.write(os);

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

// 关闭输出流

if (os != null) {

os.close();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

/*

设置浏览器-响应头

*/

private static void setResponseHeader(HttpServletResponse response, String fileName) {

try {

try {

fileName = new String(fileName.getBytes(),"ISO8859-1");

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

response.setContentType("application/octet-stream;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;filename="+ fileName);

response.addHeader("Pargam", "no-cache");

response.addHeader("Cache-Control", "no-cache");

} catch (Exception ex) {

ex.printStackTrace();

}

}

}

网上的excel的工具类有很多，但很多并不是你复制过来就能直接使用的，因此需要我们深究其原理，这样可以应对不同的场景写出属于我们自己的合适的代码，这里就不一一解释了，代码中注释加的很清楚，有不懂的可以留言评论。

3.编写controller，service，serviceImpl，dao，entity

3.1 entity

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;

import org.hibernate.annotations.Where;

import javax.persistence.*;

import java.math.BigDecimal;

@Data

@Entity

@Where(clause = "del_flag = 0")

@Table(name = "t_scf_item_data")

public class ItemData{

private static final long serialVersionUID = 1L;

@Id

@TableId

@ApiModelProperty(value = "唯一标识")

private String id = String.valueOf(SnowFlakeUtil.getFlowIdInstance().nextId());

@ApiModelProperty(value = "创建者")

@CreatedBy

private String createBy;

@CreatedDate

@jsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")

@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

@ApiModelProperty(value = "创建时间")

private Date createTime;

@ApiModelProperty(value = "项目编号")

private String itemNo;

@ApiModelProperty(value = "项目名称")

private String itemName;

@ApiModelProperty(value = "删除标志 默认0")

private Integer delFlag = 0;

}

3.2 dao

import cn.exrick.xboot.modules.item.entity.ItemData;

import org.springframework.data.jpa.repository.Query;

import org.springframework.stereotype.Repository;

import java.util.List;

@Repository

public interface ItemDataDao{

　　@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 limit 5",nativeQuery = true)

List> findAllObject();

@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 and a.id in ?1 limit 5",nativeQuery = true)

List> findByIds(List idList);

}

3.3 service

import javax.servlet.http.HttpServletResponse;

import java.util.List;

public interface TestService {

void exportExcel(List idList, HttpServletResponse response);

}

3.4 serviceImpl

import cn.exrick.xboot.common.utils.ExcelUtil;

import cn.exrick.xboot.modules.item.dao.ItemDataDao;

import cn.exrick.xboot.modules.item.service.TestService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

@Transactional

@Service

public class TestServiceImpl implements TestService {

@Autowired

private ItemDataDao itemDataDao;

@Override

public void exportExcel(List idList, HttpServletResponse response) {

List> dataList = new ArrayList<>();

if(idList == null || idList.size() == 0){

dataList = itemDataDao.findAllObject();

}else{

dataList = itemDataDao.findByIds(idList);

}

List titleList = Arrays.asList("序号","项目编码", "项目名称", "创建时间", "创建人");

ExcelUtil.uploadExcelAboutUser(response,"apply.xlsx",titleList,dataList);

}

}

3.5 controller

import cn.exrick.xboot.modules.item.service.TestService;

import io.swagger.annotations.ApiOperation;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;

import java.util.List;

import java.util.Map;

@Slf4j

@RestController

@RequestMapping("/test")

public class TestController {

@Autowired

private TestService testService;

@RequestMapping(value = "/exportExcel", method = RequestMethod.POST)

@ApiOperation(value = "导出excel",produces="application/octet-stream")

public void exportCorpLoanDemand(@RequestBody Map> map, HttpServletResponse response){ ;

log.info("测试:{}",map);

testService.exportExcel(map.get("list"),response);

}

}

4.测试

测试的话可以使用swagger或者postman，甚至你前端技术足够ok的话也可以写个简单的页面进行测试，我是用的是swaager进行的测试，下面就是我测试的结果了：

Row dataRow = sheet1.createRow(excelRow++);

//内层for循环创建每行对应的列，并赋值

for(int j = -1;j

Cell cell = dataRow.createCell(j+1);

if(j==-1){//第一列是序号列，不是在数据库中读取的数据，因此手动递增赋值

cell.setCellValue(count++);

}else{//其余列是数据列，将数据库中读取到的数据依次赋值

cell.setCellValue(dataList.get(i).get(j));

}

}

}

}

//将整理好的excel数据写入流中

wb.write(os);

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

// 关闭输出流

if (os != null) {

os.close();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

/*

设置浏览器-响应头

*/

private static void setResponseHeader(HttpServletResponse response, String fileName) {

try {

try {

fileName = new String(fileName.getBytes(),"ISO8859-1");

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

response.setContentType("application/octet-stream;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;filename="+ fileName);

response.addHeader("Pargam", "no-cache");

response.addHeader("Cache-Control", "no-cache");

} catch (Exception ex) {

ex.printStackTrace();

}

}

}

网上的excel的工具类有很多，但很多并不是你复制过来就能直接使用的，因此需要我们深究其原理，这样可以应对不同的场景写出属于我们自己的合适的代码，这里就不一一解释了，代码中注释加的很清楚，有不懂的可以留言评论。

3.编写controller，service，serviceImpl，dao，entity

3.1 entity

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;

import org.hibernate.annotations.Where;

import javax.persistence.*;

import java.math.BigDecimal;

@Data

@Entity

@Where(clause = "del_flag = 0")

@Table(name = "t_scf_item_data")

public class ItemData{

private static final long serialVersionUID = 1L;

@Id

@TableId

@ApiModelProperty(value = "唯一标识")

private String id = String.valueOf(SnowFlakeUtil.getFlowIdInstance().nextId());

@ApiModelProperty(value = "创建者")

@CreatedBy

private String createBy;

@CreatedDate

@jsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")

@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

@ApiModelProperty(value = "创建时间")

private Date createTime;

@ApiModelProperty(value = "项目编号")

private String itemNo;

@ApiModelProperty(value = "项目名称")

private String itemName;

@ApiModelProperty(value = "删除标志 默认0")

private Integer delFlag = 0;

}

3.2 dao

import cn.exrick.xboot.modules.item.entity.ItemData;

import org.springframework.data.jpa.repository.Query;

import org.springframework.stereotype.Repository;

import java.util.List;

@Repository

public interface ItemDataDao{

　　@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 limit 5",nativeQuery = true)

List> findAllObject();

@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 and a.id in ?1 limit 5",nativeQuery = true)

List> findByIds(List idList);

}

3.3 service

import javax.servlet.http.HttpServletResponse;

import java.util.List;

public interface TestService {

void exportExcel(List idList, HttpServletResponse response);

}

3.4 serviceImpl

import cn.exrick.xboot.common.utils.ExcelUtil;

import cn.exrick.xboot.modules.item.dao.ItemDataDao;

import cn.exrick.xboot.modules.item.service.TestService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

@Transactional

@Service

public class TestServiceImpl implements TestService {

@Autowired

private ItemDataDao itemDataDao;

@Override

public void exportExcel(List idList, HttpServletResponse response) {

List> dataList = new ArrayList<>();

if(idList == null || idList.size() == 0){

dataList = itemDataDao.findAllObject();

}else{

dataList = itemDataDao.findByIds(idList);

}

List titleList = Arrays.asList("序号","项目编码", "项目名称", "创建时间", "创建人");

ExcelUtil.uploadExcelAboutUser(response,"apply.xlsx",titleList,dataList);

}

}

3.5 controller

import cn.exrick.xboot.modules.item.service.TestService;

import io.swagger.annotations.ApiOperation;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;

import java.util.List;

import java.util.Map;

@Slf4j

@RestController

@RequestMapping("/test")

public class TestController {

@Autowired

private TestService testService;

@RequestMapping(value = "/exportExcel", method = RequestMethod.POST)

@ApiOperation(value = "导出excel",produces="application/octet-stream")

public void exportCorpLoanDemand(@RequestBody Map> map, HttpServletResponse response){ ;

log.info("测试:{}",map);

testService.exportExcel(map.get("list"),response);

}

}

4.测试

测试的话可以使用swagger或者postman，甚至你前端技术足够ok的话也可以写个简单的页面进行测试，我是用的是swaager进行的测试，下面就是我测试的结果了：

Cell cell = dataRow.createCell(j+1);

if(j==-1){//第一列是序号列，不是在数据库中读取的数据，因此手动递增赋值

cell.setCellValue(count++);

}else{//其余列是数据列，将数据库中读取到的数据依次赋值

cell.setCellValue(dataList.get(i).get(j));

}

}

}

}

//将整理好的excel数据写入流中

wb.write(os);

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

// 关闭输出流

if (os != null) {

os.close();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

/*

设置浏览器-响应头

*/

private static void setResponseHeader(HttpServletResponse response, String fileName) {

try {

try {

fileName = new String(fileName.getBytes(),"ISO8859-1");

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

response.setContentType("application/octet-stream;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;filename="+ fileName);

response.addHeader("Pargam", "no-cache");

response.addHeader("Cache-Control", "no-cache");

} catch (Exception ex) {

ex.printStackTrace();

}

}

}

网上的excel的工具类有很多，但很多并不是你复制过来就能直接使用的，因此需要我们深究其原理，这样可以应对不同的场景写出属于我们自己的合适的代码，这里就不一一解释了，代码中注释加的很清楚，有不懂的可以留言评论。

3.编写controller，service，serviceImpl，dao，entity

3.1 entity

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;

import org.hibernate.annotations.Where;

import javax.persistence.*;

import java.math.BigDecimal;

@Data

@Entity

@Where(clause = "del_flag = 0")

@Table(name = "t_scf_item_data")

public class ItemData{

private static final long serialVersionUID = 1L;

@Id

@TableId

@ApiModelProperty(value = "唯一标识")

private String id = String.valueOf(SnowFlakeUtil.getFlowIdInstance().nextId());

@ApiModelProperty(value = "创建者")

@CreatedBy

private String createBy;

@CreatedDate

@jsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")

@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

@ApiModelProperty(value = "创建时间")

private Date createTime;

@ApiModelProperty(value = "项目编号")

private String itemNo;

@ApiModelProperty(value = "项目名称")

private String itemName;

@ApiModelProperty(value = "删除标志 默认0")

private Integer delFlag = 0;

}

3.2 dao

import cn.exrick.xboot.modules.item.entity.ItemData;

import org.springframework.data.jpa.repository.Query;

import org.springframework.stereotype.Repository;

import java.util.List;

@Repository

public interface ItemDataDao{

　　@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 limit 5",nativeQuery = true)

List> findAllObject();

@Query(value = "select a.item_no,a.item_name,concat(a.create_time),a.create_by from t_scf_item_data a where a.del_flag = 0 and a.id in ?1 limit 5",nativeQuery = true)

List> findByIds(List idList);

}

3.3 service

import javax.servlet.http.HttpServletResponse;

import java.util.List;

public interface TestService {

void exportExcel(List idList, HttpServletResponse response);

}

3.4 serviceImpl

import cn.exrick.xboot.common.utils.ExcelUtil;

import cn.exrick.xboot.modules.item.dao.ItemDataDao;

import cn.exrick.xboot.modules.item.service.TestService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

@Transactional

@Service

public class TestServiceImpl implements TestService {

@Autowired

private ItemDataDao itemDataDao;

@Override

public void exportExcel(List idList, HttpServletResponse response) {

List> dataList = new ArrayList<>();

if(idList == null || idList.size() == 0){

dataList = itemDataDao.findAllObject();

}else{

dataList = itemDataDao.findByIds(idList);

}

List titleList = Arrays.asList("序号","项目编码", "项目名称", "创建时间", "创建人");

ExcelUtil.uploadExcelAboutUser(response,"apply.xlsx",titleList,dataList);

}

}

3.5 controller

import cn.exrick.xboot.modules.item.service.TestService;

import io.swagger.annotations.ApiOperation;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;

import java.util.List;

import java.util.Map;

@Slf4j

@RestController

@RequestMapping("/test")

public class TestController {

@Autowired

private TestService testService;

@RequestMapping(value = "/exportExcel", method = RequestMethod.POST)

@ApiOperation(value = "导出excel",produces="application/octet-stream")

public void exportCorpLoanDemand(@RequestBody Map> map, HttpServletResponse response){ ;

log.info("测试:{}",map);

testService.exportExcel(map.get("list"),response);

}

}

4.测试

测试的话可以使用swagger或者postman，甚至你前端技术足够ok的话也可以写个简单的页面进行测试，我是用的是swaager进行的测试，下面就是我测试的结果了：

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