使用JavaMail发送邮件

package com.util.mail;

import java.util.Properties;

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;

public class Mail {

private MimeMessage mimeMsg; // MIME邮件对象

private Session session; // 邮件会话对象

private Properties props; // 系统属性

// private boolean needAuth = false; // smtp是否需要认证

// smtp认证用户名和密码

private String username;

private String password;

private Multipart mp; // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象

/**

* Constructor

*

* @param smtp

* 邮件发送服务器

*/

public Mail(String smtp) {

setSmtpHost(smtp);

createMimeMessage();

}

/**

* 设置邮件发送服务器

*

* @param hostName

* String

*/

public void setSmtpHost(String hostName) {

System.out.println("设置系统属性：mail.smtp.host = " + hostName);

if (props == null)

props = System.getProperties(); // 获得系统属性对象

props.put("mail.smtp.host", hostName); // 设置SMTP主机

}

/**

* 创建MIME邮件对象

*

* @return

*/

public boolean createMimeMessage() {

try {

System.out.println("准备获取邮件会话对象！");

session = Session.getDefaultInstance(props, null); // 获得邮件会话对象

} catch (Exception e) {

System.err.println("获取邮件会话对象时发生错误！" + e);

return false;

}

System.out.println("准备创建MIME邮件对象！");

try {

mimeMsg = new MimeMessage(session); // 创建MIME邮件对象

mp = new MimeMultipart();

return true;

} catch (Exception e) {

System.err.println("创建MIME邮件对象失败！" + e);

return false;

}

}

/**

* 设置SMTP是否需要验证

*

* @param need

*/

public void setNeedAuth(boolean need) {

System.out.println("设置smtp身份认证：mail.smtp.auth = " + need);

if (props == null)

props = System.getProperties();

if (need) {

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

} else {

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

}

}

/**

* 设置用户名和密码

*

* @param name

* @param pass

*/

public void setNamePass(String name, String pass) {

username = name;

password = pass;

}

/**

* 设置邮件主题

*

* @param mailSubject

* @return

*/

public boolean setSubject(String mailSubject) {

System.out.println("设置邮件主题！");

try {

mimeMsg.setSubject(mailSubject);

return true;

} catch (Exception e) {

System.err.println("设置邮件主题发生错误！");

return false;

}

}

/**

* 设置邮件正文

*

* @param mailBody

* String

*/

public boolean setBody(String mailBody) {

try {

BodyPart bp = new MimeBodyPart();

bp.setContent("" + mailBody, "text/html;charset=GBK");

mp.addBodyPart(bp);

return true;

} catch (Exception e) {

System.err.println("设置邮件正文时发生错误！" + e);

return false;

}

}

/**

* 添加附件

*

* @param filename

* String

*/

public boolean addFileAffix(String filename[]) {

try {

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

System.out.println("增加邮件附件："+filename[i]);

BodyPart bp = new MimeBodyPart();

FileDataSource fileds = new FileDataSource(filename[i]);

bp.setDataHandler(new DataHandler(fileds));

bp.setFileName(fileds.getName());

bp.setFileName(MimeUtility.encodeText(fileds.getName()));

mp.addBodyPart(bp);

}

return true;

} catch (Exception e) {

System.err.println("增加邮件附件："+filename+"发生错误！"+e);

return false;

}

}

/**

* 设置发信人

*

* @param from

* String

*/

public boolean setFrom(String from) {

System.out.println("设置发信人！");

try {

mimeMsg.setFrom(new InternetAddress(from)); // 设置发信人

return true;

} catch (Exception e) {

return false;

}

}

/**

* 设置收信人

*

* @param to

* String

*/

public boolean setTo(String to) {

if (to == null)

return false;

try {

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

return true;

} catch (Exception e) {

return false;

}

}

/**

* 设置抄送人

*

* @param copyto

* String

*/

public boolean setCopyTo(String copyto) {

if (copyto == null)

return true;

try {

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

return true;

} catch (Exception e) {

return false;

}

}

/**

* 发送邮件

*/

public boolean sendOut() {

try {

mimeMsg.setContent(mp);

mimeMsg.saveChanges();

System.out.println("正在发送邮件....");

Session mailSession = Session.getInstance(props, null);

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

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

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

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

// transport.send(mimeMsg);

System.out.println("发送邮件成功！");

transport.close();

return true;

} catch (Exception e) {

System.err.println("邮件发送失败！" + e);

return false;

}

}

/**

* 调用sendOut方法完成邮件发送

*

* @param smtp

* @param from

* @param to

* @param subject

* @param content

* @param username

* @param password

* @return boolean

*/

public static boolean send(String smtp, String from, String to, String subject, String content, String username, String password) {

Mail theMail = new Mail(smtp);

theMail.setNeedAuth(true); // 需要验证

if (!theMail.setSubject(subject))//邮件主题

return false;

if (!theMail.setBody(content))//邮件内容

return false;

if (!theMail.setTo(to))//收件人

return false;

if (!theMail.setFrom(from))//发件人

return false;

theMail.setNamePass(username, password);//发件人邮箱和密码

if (!theMail.sendOut())

return false;

return true;

}

/**

* 调用sendOut方法完成邮件发送,带抄送

*

* @param smtp

* @param from

* @param to

* @param copyto

* @param subject

* @param content

* @param username

* @param password

* @return boolean

*/

public static boolean sendAndCc(String smtp, String from, String to, String copyto, String subject, String content, String username, String password) {

Mail theMail = new Mail(smtp);

theMail.setNeedAuth(true); // 需要验证

if (!theMail.setSubject(subject))//邮件主题

return false;

if (!theMail.setBody(content))//邮件内容

return false;

if (!theMail.setTo(to))//收件人

return false;

if (!theMail.setCopyTo(copyto))//抄送人

return false;

if (!theMail.setFrom(from))//发件人

return false;

theMail.setNamePass(username, password);//发件人邮箱和密码

if (!theMail.sendOut())

return false;

return true;

}

/**

* 调用sendOut方法完成邮件发送,带附件

*

* @param smtp

* @param from

* @param to

* @param subject

* @param content

* @param username

* @param password

* @param filename

* 附件路径

* @return

*/

public static boolean send(String smtp, String from, String to, String subject, String content, String username, String password, String filename[]) {

Mail theMail = new Mail(smtp);

theMail.setNeedAuth(true); // 需要验证

if (!theMail.setSubject(subject))//邮件主题

return false;

if (!theMail.setBody(content))//邮件内容

return false;

if (!theMail.addFileAffix(filename))//添加多个附件

return false;

if (!theMail.setTo(to))//收件人

return false;

if (!theMail.setFrom(from))//发件人

return false;

theMail.setNamePass(username, password);//发件人邮箱和密码

if (!theMail.sendOut())

return false;

return true;

}

/**

* 调用sendOut方法完成邮件发送,带附件和抄送

*

* @param smtp

* @param from

* @param to

* @param copyto

* @param subject

* @param content

* @param username

* @param password

* @param filename

* @return

*/

public static boolean sendAndCc(String smtp, String from, String to, String copyto, String subject, String content, String username, String password, String filename[]) {

Mail theMail = new Mail(smtp);

theMail.setNeedAuth(true); // 需要验证

if (!theMail.setSubject(subject))//邮件主题

return false;

if (!theMail.setBody(content))//邮件内容

return false;

if (!theMail.addFileAffix(filename))//添加多个附件

return false;

if (!theMail.setTo(to))//收件人

return false;

if (!theMail.setCopyTo(copyto))//抄送人

return false;

if (!theMail.setFrom(from))//发件人

return false;

theMail.setNamePass(username, password);//发件人邮箱和密码

if (!theMail.sendOut())

return false;

return true;

}

}

测试代码：

public static void main(String[] args){

String smtp = "SMTP服务器";

String from = "发信人";

String to = "收信人";

String copyto = "抄送人";

String subject = "邮件主题";

String content = "邮件内容";

String username="用户名";

String password="密码";

String filename[] = {"i:\\阿布次.xlsx","i:\\1111111.jpg" };//多个附件

Mail.sendAndCc(smtp, from, to, copyto, subject, content, username, password, filename);

}

需要以下jar包activation.jar，dsn.jar，imap.jar，mail.jar，mailapi.jar，pop3.jar，smtp.jar