springboot easypoi导出excel

<!--easypoi导出excel-->
<!--easypoi-base 导入导出的工具包,可以完成Excel导出,导入,Word的导出,Excel的导出功能-->
<dependency>
<groupId>org.jeecg</groupId>
<artifactId>easypoi-base</artifactId>
<version>2.3.1</version>
</dependency>
<!--easypoi-web  耦合了spring-mvc 基于AbstractView,极大的简化spring-mvc下的导出功能-->
<dependency>
<groupId>org.jeecg</groupId>
<artifactId>easypoi-web</artifactId>
<version>2.3.1</version>
</dependency>
<!--easypoi-annotation 基础注解包,作用与实体对象上,拆分后方便maven多工程的依赖管理-->
<dependency>
<groupId>org.jeecg</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>2.3.1</version>
</dependency>

@Entity
@Table(name = "t_user")
@ExcelTarget("user")
public class User {
@Id
@GeneratedValue
@Excel(name = "编号", orderNum = "1", mergeVertical = true, isImportField = "id")
private int id;
@Excel(name = "姓名", orderNum = "2", mergeVertical = true, isImportField = "name")
private String name;

@RequestMapping("/downloadExcel")
public void download(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 告诉浏览器用什么软件可以打开此文件
response.setHeader("content-Type", "application/vnd.ms-excel");
// 下载文件的默认名称
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("用户数据表","UTF-8") + ".xls");
//编码
response.setCharacterEncoding("UTF-8");
List<User> list = userRepository.findAll();//获得用户
Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), User.class, list);
workbook.write(response.getOutputStream());
}