easypoi实现excel的导出、导入
我之前一直用poi导入导出,写起来还是挺麻烦的,虽然可以粘贴复制相同代码,但是毕竟有好大一坨。
所以尝试用easypoi做excel的导入导出。闲言少叙,开始干活…………
第一步:导包
<!--easypoi需要导包的-->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>3.2.0</version>
</dependency>
第二步 写实体类,注解导入导出,实体类要写得无偏差(重点)
注解属性介绍:
name指定导出excel时生成的列名
orderNum可指定导出的该属性对应的所在列的位置
width设置单元格宽度
type设置导出类型 1是文本, 2是图片, 3是函数,10 数字 默认是文本
replace:值得替换 例:replace = {“身份证_1”} 数据库值为"1",导出时会自动被"身份证"代
例如:@Excel(name=“证件类型”,replace = {“身份证_1”},orderNum = “1”)
/**
* 将Data日期导出为yyyy-MM-dd格式
* mergeVertical设置是否纵向合并列
* mergeRely设置合并列的前提条件,即:只有当索引为2的列(即:"性别"列)已经
* 合并了时,那么此时这一列的纵向相同时,才能纵向合并;如果引为2的
* 列(即:"性别"列)纵向数据不同,那么就算此列的纵向数据相同,那么
* 也不会合并
*/
@Excel(name=“入校时间”,mergeVertical = true,mergeRely = {2},format = “yyyy-MM-dd”,orderNum = “5”,width = 20)
package com.sinux.easypoi.entity;
import cn.afterturn.easypoi.excel.annotation.Excel;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* @author Admin
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class NewExcelOperateEntity {
/**
* @Excel注解的一些常用属性
* name:列名
* orderNum:第几列
* replace:值得替换 例:replace = {"身份证_1"} 数据库值为"1",导出时会自动被"身份证"代
*/
@Excel(name="姓名",orderNum = "0")
private String name;
@Excel(name="证件类型",replace = {"身份证_1"},orderNum = "1")
private String identifyType;
@Excel(name = "证件号码", orderNum = "2")
private String identifyNo;
@Excel(name = "手机号1", orderNum = "3",mergeVertical = true)
private String phoneA;
@Excel(name = "手机号2", orderNum = "4",mergeVertical = true)
private String phoneB;
@Excel(name = "手机号3", orderNum = "5",mergeVertical = true)
private String phoneC;
@Excel(name = "固定电话", orderNum = "6",mergeVertical = true)
private String telephone;
@Excel(name = "电子邮箱", orderNum = "7",mergeVertical = true)
private String email;
@Excel(name = "身份证地址", orderNum = "8",mergeVertical = true)
private String idcardAdress;
@Excel(name = "户籍地址", orderNum = "9",mergeVertical = true)
private String householdAddress;
@Excel(name = "居住地址", orderNum = "10",mergeVertical = true)
private String liveAddress;
@Excel(name = "工作地址", orderNum = "11",mergeVertical = true)
private String workAddress;
}
第三步:导出
@GetMapping("/export")
public void exportExcel(HttpServletResponse response){
List<NewExcelOperateEntity> list = new ArrayList<>();
NewExcelOperateEntity newExcelOperateEntity = null;
Random random = new Random();
//造数据
for(int i=0;i<10;i++){
newExcelOperateEntity = new NewExcelOperateEntity("姓名"+i,
"1",
random.nextInt(3)+i+"",
random.nextInt(3)+i+"",
random.nextInt(3)+i+"",
random.nextInt(3)+i+"",
"固定电话"+i,
"电子邮箱"+i,
"身份证地址"+i,
"户籍地址"+i,
"居住地址"+i,
"工作地址"+i);
list.add(newExcelOperateEntity);
}
ExportParams exportParams = new ExportParams();
exportParams.setSheetName("I am sheetName");
Workbook workbook = ExcelExportUtil.exportExcel(exportParams,NewExcelOperateEntity.class,list);
try {
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") + "**.xlsx**");
workbook.write(response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}
第四步:导入
@RequestMapping("/import")
public boolean importExcel(MultipartFile file){
ImportParams importParams = new ImportParams();
List<NewExcelOperateEntity> list = new ArrayList<>();
try {
list = ExcelImportUtil.importExcel(file.getInputStream(),NewExcelOperateEntity.class,importParams);
for(NewExcelOperateEntity s : list){
System.out.println(s);
}
} catch (Exception e) {
e.printStackTrace();
}
return true;
}