Maven依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>2.1.6</version>
</dependency>
实体类
package com.ruiguo.modal;
import com.alibaba.excel.annotation.ExcelProperty;
import java.io.Serializable;
/**
* excel 导入,导出实体类对象
* @author jiaruiguo
*/
public class UserInfoBean implements Serializable {
@ExcelProperty(value = "ID", index = 0)
private String userId;
@ExcelProperty(value = "NAME", index = 1)
private String userName;
@ExcelProperty(value = "PHONE", index = 2)
private String phoneNum;
@ExcelProperty(value = "GENDER", index = 3)
private String gender;
@ExcelProperty(value = "HEIGHT", index = 4)
private String height;
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPhoneNum() {
return phoneNum;
}
public void setPhoneNum(String phoneNum) {
this.phoneNum = phoneNum;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getHeight() {
return height;
}
public void setHeight(String height) {
this.height = height;
}
@Override
public String toString() {
return "UserInfoBean{" +
"userId='" + userId + '\'' + ", userName='" + userName + '\'' +
", phoneNum='" + phoneNum + '\'' + ", gender='" + gender + '\'' +
", height='" + height + '\'' +
'}';
}
}
Excel导入
/**
* excel 文件导入
* @param inputStream
* @param clazz
*/
public static List<? extends Object> importExcel(InputStream inputStream, Class clazz,List<? extends Object> list) {
try {
return EasyExcel.read(inputStream)
.head(clazz)
.sheet(0)
.doReadSync();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
Excel导出
/**
* excel 文件导出
*/
public static void exportExcel(OutputStream outputStream, Class clazz, List<? extends Object> list) {
EasyExcel.write(outputStream,clazz)
.excelType(ExcelTypeEnum.XLSX)
.sheet("sheet1")
.doWrite(list);
}
功能测试
导入测试
// 导入上传
String filePath = "F:\\Download\\inputExcel.xlsx";
List<UserInfoBean> list = new ArrayList<>();
try {
InputStream inputStream = new FileInputStream(new File(filePath));
list = (List<UserInfoBean>) importExcel(inputStream,UserInfoBean.class,list);
System.out.println("输出:" + list.toString());
} catch (FileNotFoundException e) {
e.printStackTrace();
}
导出测试
// 导出下载
OutputStream outputStream = null;
List<UserInfoBean> list1 = new ArrayList<>();
for (int i = 0; i < 5; i++ ){
UserInfoBean userInfoBean = new UserInfoBean();
userInfoBean.setUserId("id_" + i);
userInfoBean.setUserName("name_" + i);
userInfoBean.setGender("男" + i);
userInfoBean.setHeight("17" + i + "cm");
userInfoBean.setPhoneNum("12345"+ i);
list1.add(userInfoBean);
}
try {
outputStream = new FileOutputStream(new File("F:\\Download\\outExcel.xlsx"));
exportExcel(outputStream, UserInfoBean.class, list1);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != outputStream) {
outputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
结果查看
输出: [ UserInfoBean{userId=‘1’, userName=‘jack’, phoneNum=‘1234567’, gender=‘男’, height=‘165cm’}, UserInfoBean{userId=‘2’, userName=‘lisi’, phoneNum=‘2345678’, gender=‘女’, height=‘175cm’}, UserInfoBean{userId=‘3’, userName=‘zhangsan’, phoneNum=‘3456789’, gender=‘男’, height=‘170cm’} ]
