java 发送邮件添加附件_java发送邮件 发送带附件的邮件详解[通俗易懂]

import java.io.File;

import java.util.Date;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Address;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.Multipart;

import javax.mail.Session;

import javax.mail.Transport;

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;

/**

* 发送带附件的邮件

*

* 需要导入mail.jar

*/

public class AttachmentMailSender {

public static boolean sendMail(MailSenderInfo mailInfo) {

// 判断是否需要身份认证

MyAuthenticator authenticator = null;

if (mailInfo.isValidate()) {

// 如果需要身份认证，则创建一个密码验证器

authenticator = new MyAuthenticator(mailInfo.getUserName(),

mailInfo.getPassword());

}

// 根据邮件发送的属性和密码验证器构造一个发送邮件的session

Session sendMailSession = Session.getInstance(mailInfo.getProperties(),

authenticator);

try {

// 根据session创建一个邮件消息

Message mailMessage = new MimeMessage(sendMailSession);

// 创建邮件发送者地址

Address from = new InternetAddress(mailInfo.getFromAddress());

// 设置邮件消息的发送者

mailMessage.setFrom(from);

// 创建邮件的接收者地址，并设置到邮件消息中

Address to = new InternetAddress(mailInfo.getToAddress());

mailMessage.setRecipient(Message.RecipientType.TO, to);

// 设置邮件消息的主题

mailMessage.setSubject(mailInfo.getSubject());

// 设置邮件消息发送的时间

mailMessage.setSentDate(new Date());

// MiniMultipart类是一个容器类，包含MimeBodyPart类型的对象

Multipart mainPart = new MimeMultipart();

// 创建一个包含HTML内容的MimeBodyPart

BodyPart html = new MimeBodyPart();

// 设置HTML内容

html.setContent(mailInfo.getContent(), “text/html; charset=GBK”);

mainPart.addBodyPart(html);

// 为邮件添加附件

String[] attachFileNames = mailInfo.getAttachFileNames();

if (attachFileNames != null && attachFileNames.length > 0) {

// 存放邮件附件的MimeBodyPart

MimeBodyPart attachment = null;

File file = null;

for (int i = 0; i < attachFileNames.length; i++) {

attachment = new MimeBodyPart();

// 根据附件文件创建文件数据源

file = new File(attachFileNames[i]);

FileDataSource fds = new FileDataSource(file);

attachment.setDataHandler(new DataHandler(fds));

// 为附件设置文件名

attachment.setFileName(MimeUtility.encodeWord(

file.getName(), “GBK”, null));

mainPart.addBodyPart(attachment);

}

}

// 将MiniMultipart对象设置为邮件内容

mailMessage.setContent(mainPart);

// 发送邮件

Transport.send(mailMessage);

return true;

} catch (Exception e) {

e.printStackTrace();

return false;

}

}

public static void main(String[] args) {

// 创建邮件信息

MailSenderInfo mailInfo = new MailSenderInfo();

mailInfo.setMailServerHost(“smtp.sina.com.cn”);

mailInfo.setMailServerPort(“25”);

mailInfo.setValidate(true);

mailInfo.setUserName(“***”);

mailInfo.setPassword(“***”);

mailInfo.setFromAddress(“[email protected]”);

mailInfo.setToAddress(“[email protected]”);

mailInfo.setSubject(“MyMail测试”);

mailInfo.setContent(“我的邮件测试\n\rMy test mail\n\r”);

String[] fileNames = new String[3];

fileNames[0] = “C:/temp/new.txt”;

fileNames[1] = “C:/temp/test.wav”;

fileNames[2] = “C:/temp/mary_photo.jpg”;

mailInfo.setAttachFileNames(fileNames);

AttachmentMailSender.sendMail(mailInfo);

}

}