EasyPOI实现excel文件导出-编程知识

EasyPOI实现excel文件导出

EasyPOI真的是一款非常好用的文件导出工具，相较于传统的一行一列的数据导出，这种以实体类绑定生成的方式真的非常方便，也希望大家能够了解、掌握其使用方法，下面就用一个实例来简单介绍一下EasyPOI的使用。

1.导入依赖

        <!-- easypoi导出 --><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-base</artifactId><version>4.2.0</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-web</artifactId><version>4.2.0</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-annotation</artifactId><version>4.2.0</version></dependency>

2.创建对应实体类

package com.wulian.training.center.export;import cn.afterturn.easypoi.excel.annotation.Excel;
import lombok.Data;@Data
public class TestScoreExportDTO {/*** 序号*/@Excel(name = "序号", orderNum = "1", width = 15)private Integer id;/*** 人员名称*/@Excel(name = "人员名称", orderNum = "2", width = 15)private String personName;/*** 达标天数*/@Excel(name = "达标天数", orderNum = "3", width = 15)private Integer passCount;/*** 积分总数*/@Excel(name = "积分总数", orderNum = "4", width = 15)private String totalScore;/*** 日平均积分*/@Excel(name = "日平均积分", orderNum = "5", width = 15)private String avgScore;/*** 积分排名*/@Excel(name = "积分排名", orderNum = "6", width = 15)private Integer number;}

3.导出方法

    @PostMapping("/export")@ApiOperation(value = "导出")public ResultMoudel export(@RequestParam(required = false)String name,HttpServletRequest request) throws IOException {Map map=new HashMap();map.put("name",name);map.put("companyId",sysUser.getCompanyId());List<TestScoreExportDTO> list=appTestManageMapper.selectOrderByTypePage(map);AtomicInteger id = new AtomicInteger(new Integer(1));list.stream().forEach(iter->{iter.setId(id.getAndIncrement());});String fileName = "积分信息";//设置导出参数ExportParams exportParams = new ExportParams("积分信息", "排名", ExcelType.XSSF);//设置表头exportParams.setCreateHeadRows(true);
//        exportParams.setAddIndex(true);//数据渲染Workbook sheets = ExcelExportUtil.exportExcel(exportParams, TestScoreExportDTO.class, list);//导出final String downloadName = new String((fileName + ExcelTypeEnum.XLSX.getValue()).getBytes(), StandardCharsets.ISO_8859_1);
//        response.setCharacterEncoding("UTF-8");response.setHeader("content-Type", "application/vnd.ms-excel");response.setHeader("Content-Disposition", "attachment;filename=" + downloadName);//获取输出流，将excel输出ServletOutputStream outputStream = response.getOutputStream();sheets.write(outputStream);return new ResultMoudel<>().success("导出成功");}

导出成功：