Java 发邮件

<dependency>

<groupId>javax.mail</groupId>

<artifactId>mail</artifactId>

<version>1.4.7</version>

</dependency>

 

 

package cn.gszhang.common.base.utils;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.MessagingException;

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;

public class EmailUtis {

private Properties props; //系统属性

private Session session; //邮件会话对象

private MimeMessage mimeMsg; //MIME邮件对象

/**

* Constructor

* @param smtp 邮件发送服务器

*/

public EmailUtis(String smtp, String username, String password){

props = System.getProperties();

props.put("mail.smtp.auth","true");

props.put("mail.smtp.host", smtp);

props.put("username", username);

props.put("password", password);

session = Session.getDefaultInstance(props, null);

session.setDebug(true);

mimeMsg = new MimeMessage(session);

}

public boolean sendMail(String from, String[] to, String[] copyto, String subject, String content, String[] fileName) {

try {

//设置发信人

mimeMsg.setFrom(new InternetAddress(from));

//设置接收人

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

mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to[i]));

}

//设置抄送人

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

mimeMsg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(copyto[i]));

}

//设置主题

mimeMsg.setSubject(subject);

if(null!=fileName){

BodyPart mdp = new MimeBodyPart();// 新建一个存放信件内容的BodyPart对象

mdp.setContent(content, "text/html;charset=UTF-8");// 给BodyPart对象设置内容和格式/编码方式

Multipart mm = new MimeMultipart();// 新建一个MimeMultipart对象用来存放BodyPart对象

mm.addBodyPart(mdp);// 将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)

MimeBodyPart filePart ;

FileDataSource fileDataSource ;

for (int j = 0; j < fileName.length; j++) {

mdp = new MimeBodyPart();

filePart = new MimeBodyPart();

fileDataSource = new FileDataSource(fileName[j]);

filePart.setDataHandler(new DataHandler(fileDataSource));

try {

filePart.setFileName(MimeUtility.encodeText(fileDataSource.getName()));

} catch (Exception e) {

e.printStackTrace();

}

mm.addBodyPart(filePart);

}

mimeMsg.setContent(mm);

}else{

BodyPart mdp = new MimeBodyPart();

mdp.setContent(content, "text/html;charset=UTF-8");// 给BodyPart对象设置内容和格式/编码方式

Multipart mm = new MimeMultipart();// 新建一个MimeMultipart对象用来存放BodyPart对象

mm.addBodyPart(mdp);// 将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)

mimeMsg.setContent(mm);

}

//发送邮件

if(props.get("mail.smtp.auth").equals("true")){

Transport transport = session.getTransport("smtp");

transport.connect((String)props.get("mail.smtp.host"), (String)props.get("username"), (String)props.get("password"));

transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));

transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.CC));

transport.close();

}else{

Transport.send(mimeMsg);

}

System.out.println("邮件发送成功");

} catch (MessagingException e) {

e.printStackTrace();

}

return true;

}

 

public static void main(String[] args) {

String smtp = "smtp.163.com";

String username="zhgs_cq@163.com";

String password=""; //填写邮箱的密码

String from = "zhgs_cq@163.com";

String[] to = {"470417164@qq.com,973669404@qq.com"};

String[] copyto = {"973669404@qq.com"};

String subject = "主题";

String content = "邮件内容";

String[] fileName = {"D:\\WI-FI密码.txt","D:\\张高松 Java软件工程师.doc"};

// String[] fileName = null;// {"D:\\WI-FI密码.txt"};

EmailUtis email = new EmailUtis(smtp, username, password);

email.sendMail(from, to, copyto, subject, content, fileName);

}

}