Easyexcel生成excel直接发送邮件
依赖：
org.springframework.boot
spring-boot-starter-mail
2.2.10.RELEASE
com.alibaba
easyexcel
2.2.7
import java.io.ByteArrayInputStream;
import java.security.GeneralSecurityException;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Part;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
import javax.mail.internet.MimeMessage.RecipientType;
import javax.mail.util.ByteArrayDataSource;
import com.sun.mail.util.MailSSLSocketFactory;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
@Service
@Slf4j
public class MailService {
// 发送人的邮箱,QQ邮箱可以自己发给自己
@Value("${mail.username:[email protected]}")
private String account;
// 发送人的邮箱smtp授权码
@Value("${mail.password:ftuvgewercgjg}")
private String pwd;
// 发送人的邮箱smtp授权码
@Value("${mail.host:smtp.qq.com}")
private String host;
/**
* 发送邮件
*
* @param to 邮件收件人地址
* @param title 邮件标题
* @param text 内容
* @param text 附件标题
* @param
*/
public void sendMsgFileDs(String to, String title, String text, String affixName, ByteArrayInputStream inputstream) {
Session session = assembleSession();
Message msg = new MimeMessage(session);
try {
msg.setFrom(new InternetAddress(account));
msg.setSubject(title);
msg.setRecipients(RecipientType.TO, acceptAddressList(to));
//参数为正文内容和附件流
MimeBodyPart contentPart = (MimeBodyPart) createContent(text, inputstream, affixName);
MimeMultipart mime = new MimeMultipart("mixed");
mime.addBodyPart(contentPart);
msg.setContent(mime);
Transport.send(msg);
} catch (Exception e) {
log.error("sendMsgFileDs异常", e);
}
}
public Address[] acceptAddressList(String acceptAddress) {
// 创建邮件的接收者地址，并设置到邮件消息中
Address[] tos = null;
try {
tos = new InternetAddress[1];
tos[0] = new InternetAddress(acceptAddress);
} catch (AddressException e) {
log.error("acceptAddressList异常", e);
}
return tos;
}
public Session assembleSession() {
Session session = null;
Properties props = new Properties();
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.transport.protocol", "smtp");
props.setProperty("mail.smtp.port", "465");
//邮件服务器
props.setProperty("mail.smtp.host", host);
//开启安全协议
MailSSLSocketFactory sf = null;
try {
sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
} catch (GeneralSecurityException e) {
log.error("GeneralSecurityException异常", e);
}
props.put("mail.smtp.ssl.socketFactory", sf);
props.put("mail.smtp.ssl.enable", "true");
session = Session.getDefaultInstance(props, new MyAuthenricator(account, pwd));
return session;
}
static Part createContent(String content, ByteArrayInputStream inputstream, String affixName) {
MimeBodyPart contentPart = null;
try {
contentPart = new MimeBodyPart();
MimeMultipart contentMultipart = new MimeMultipart("related");
MimeBodyPart htmlPart = new MimeBodyPart();
htmlPart.setContent(content, "text/html;charset=gbk");
contentMultipart.addBodyPart(htmlPart);
//附件部分
MimeBodyPart excelBodyPart = new MimeBodyPart();
DataSource dataSource = new ByteArrayDataSource(inputstream, "application/excel");
DataHandler dataHandler = new DataHandler(dataSource);
excelBodyPart.setDataHandler(dataHandler);
excelBodyPart.setFileName(MimeUtility.encodeText(affixName));
contentMultipart.addBodyPart(excelBodyPart);
contentPart.setContent(contentMultipart);
} catch (Exception e) {
log.error("createContent异常", e);
}
return contentPart;
}
//用户名密码验证，需要实现抽象类Authenticator的抽象方法PasswordAuthentication
static class MyAuthenricator extends Authenticator {
String u = null;
String p = null;
public MyAuthenricator(String u, String p) {
this.u = u;
this.p = p;
}
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(u, p);
}
}
}测试：
import cn.hutool.core.date.DateUtil;
import com.alibaba.excel.EasyExcel;
import order.meal.admin.job.MailService;
import order.meal.admin.model.vo.req.OrderReqVO;
import order.meal.admin.model.vo.resp.OrderExcelRespVO;
import order.meal.admin.service.OrderService;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Date;
import java.util.List;
public class EmailTest extends BaseTest {
@Autowired
private MailService mailService;
@Autowired
private OrderService orderService;
// 邮件标题
@Value("${email.title:订餐数据}")
private String title;
/* *
* description: 结合EasyExcel；但一次只能发送一个sheet;
*
*/
@Test
public void sendMailWithExcel() throws IOException {
String fileName = new StringBuilder(DateUtil.formatDate(new Date())).append("_").append(title).toString();
String affixName = new StringBuilder(DateUtil.formatDate(new Date())).append(".xlsx").toString();
ByteArrayOutputStream outputStream = null;
ByteArrayInputStream inputStream = null;
try {
OrderReqVO orderReqVO = new OrderReqVO();
orderReqVO.setPageNo(0);
orderReqVO.setState(3L);
List list = orderService.exportList(orderReqVO);
outputStream = new ByteArrayOutputStream(1000);
EasyExcel.write(outputStream, OrderExcelRespVO.class).
sheet("订单列表").doWrite(list);
inputStream = new ByteArrayInputStream(outputStream.toByteArray());
//注意：附件需要带后缀，例如上面例子，附件名称可以写 测试.xlsx
mailService.sendMsgFileDs("[email protected]",
fileName,
fileName,
affixName,
inputStream);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
}
@Test
public void sendMailWithExcels() throws IOException {
HSSFWorkbook wb = null;
ByteArrayOutputStream outputStream = null;
ByteArrayInputStream inputStream = null;
try {
String[] headers = {"列名1", "列名2", "列名3"};
// 声明一个工作薄
wb = new HSSFWorkbook();
// 生成一个表格
HSSFSheet orders = wb.createSheet();
HSSFSheet users = wb.createSheet();
wb.setSheetName(0, "订单数据");
wb.setSheetName(1, "用户数据");
extracted(headers, orders);
extracted(headers, users);
outputStream = new ByteArrayOutputStream(1000);
wb.write(outputStream);
inputStream = new ByteArrayInputStream(outputStream.toByteArray());
//注意：附件需要带后缀，例如上面例子，附件名称可以写 测试.xlsx
mailService.sendMsgFileDs("[email protected]",
"attachmentMail subject",
"I have an attachment",
"测试.xls",
inputStream);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (wb != null) {
wb.close();
}
if (outputStream != null) {
outputStream.close();
}
if (inputStream != null) {
inputStream.close();
}
}
}
private void extracted(String[] headers, HSSFSheet sheet) {
HSSFRow row = sheet.createRow(0);
for (int i = 0; i < headers.length; i++) {
HSSFCell cell = row.createCell(i);
cell.setCellValue(headers[i]);
}
int rowIndex = 1;
for (int j = 0; j < 3; j++) {
row = sheet.createRow(rowIndex);
rowIndex++;
HSSFCell cell1 = row.createCell(0);
cell1.setCellValue(j);
cell1 = row.createCell(1);
cell1.setCellValue(j + 1);
cell1 = row.createCell(2);
cell1.setCellValue(j + 2);
}
for (int i = 0; i < headers.length; i++) {
sheet.autoSizeColumn(i);
}
}
}
/** 指定当前生效的配置文件( active profile)，如果是 appplication-dev.yml 则 dev **/
@ActiveProfiles("dev")
@SpringBootTest(classes = AdminStarter.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class BaseTest {
@Test
public void test(){
}
}
@Setter
@Getter
public class OrderExcelRespVO implements Serializable {
/* *
* 订单号
*/
@ExcelProperty(value = "订单号")
private long orderNo;
@ExcelProperty(value = "手机号")
private String phone;
@ExcelProperty(value = "用户名称")
private String userName;
/* *
* 商家名称
*/
@ExcelProperty(value = "商家名称")
private String merchantName;
/* *
* 商品列表
*/
@ExcelProperty(value = "商品")
String materialList;
/* *
* 1:预定 2:取餐 3:取消 4:爽约
*/
@ExcelProperty(value = "订单状态")
private String state;
/* *
* 订餐时间
*/
@ExcelProperty(value = "订餐时间")
private String createTime;
}
转自：
java 发邮件带excel附件，以流的形式发送附件，不生成excel文件
最简单的 springboot 发送邮件,使用thymeleaf模板