?

?

通过javaMail发送邮件，可设置多个收件人，发送多个附件：

附件名称为中文时无乱码现象

?

详见代码：

?

SendMailTest .java:

?

class="java" name="code">package com.test;

import java.util.Date;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Authenticator;

import javax.mail.Multipart;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeBodyPart;

import javax.mail.internet.MimeMultipart;

import javax.mail.internet.MimeUtility;

/**

* 利用java.mail的邮件发送程序

*/

public class SendMailTest {

public static void main(String[] args) {

String title = "邮件主题";// 所发送邮件的标题

String from = "javamail123@126.com";// 从那里发送

String sendTo[] = { "testjavamail123@sohu.com", "2897416077@qq.com" };// 发送到那里

// 邮件的文本内容，可以包含html标记则显示为html页面

String content = "mail test!!!!!!";

// 所包含的附件，及附件的重新命名

String fileNames[] = { "D:\\test.txt,test.txt","D:\\test2.txt,哈哈.txt" };

try {

// MailSender mailsender = new MailSender();

sendmail(title, from, sendTo, content, fileNames,

"text/html;charset=gb2312");

} catch (Exception ex) {

ex.printStackTrace();

}

}

public static void sendmail(String subject, String from, String[] to,

String text, String[] filenames, String mimeType) throws Exception {

// ResourceBundle mailProps = ResourceBundle.getBundle("mail");

// 可以从配置文件读取相应的参数

Properties props = new Properties();

String smtp = "smtp.126.com"; // 设置发送邮件所用到的smtp

String servername = "javamail123@126.com";

String serverpaswd = "hello123";

javax.mail.Session mailSession; // 邮件会话对象

javax.mail.internet.MimeMessage mimeMsg; // MIME邮件对象

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

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

props.put("mail.smtp.auth", "true"); // 是否到服务器用户名和密码验证

// 到服务器验证发送的用户名和密码是否正确

Email_Autherticatorbean myEmailAuther = new Email_Autherticatorbean(

servername, serverpaswd);

// 设置邮件会话

mailSession = javax.mail.Session.getInstance(props,

(Authenticator) myEmailAuther);

//设置debug打印信息

mailSession.setDebug(true);

// 设置传输协议

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

// 设置from、to等信息

mimeMsg = new javax.mail.internet.MimeMessage(mailSession);

if (!from.isEmpty()) {

InternetAddress sentFrom = new InternetAddress(from);

mimeMsg.setFrom(sentFrom); // 设置发送人地址

}

InternetAddress[] sendTo = new InternetAddress[to.length];

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

System.out.println("发送到:" + to[i]);

sendTo[i] = new InternetAddress(to[i]);

}

mimeMsg.setRecipients(javax.mail.internet.MimeMessage.RecipientType.TO,

sendTo);

mimeMsg.setSubject(subject, "gb2312");

MimeBodyPart messageBodyPart1 = new MimeBodyPart();

// messageBodyPart.setText(UnicodeToChinese(text));

messageBodyPart1.setContent(text, mimeType);

Multipart multipart = new MimeMultipart();// 附件传输格式

multipart.addBodyPart(messageBodyPart1);

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

MimeBodyPart messageBodyPart2 = new MimeBodyPart();

// 选择出每一个附件名

String filename = filenames[i].split(",")[0];

System.out.println("附件名：" + filename);

String displayname = filenames[i].split(",")[1];

// 得到数据源

FileDataSource fds = new FileDataSource(filename);

// 得到附件本身并至入BodyPart

messageBodyPart2.setDataHandler(new DataHandler(fds));

// 得到文件名同样至入BodyPart

// messageBodyPart2.setFileName(displayname);

// messageBodyPart2.setFileName(fds.getName());

messageBodyPart2.setFileName(MimeUtility.encodeText(displayname));

multipart.addBodyPart(messageBodyPart2);

}

mimeMsg.setContent(multipart);

// 设置信件头的发送日期

mimeMsg.setSentDate(new Date());

mimeMsg.saveChanges();

// 发送邮件

transport.send(mimeMsg);

transport.close();

}

}

?

?

?

用户验证代码：

Email_Autherticatorbean.java：

package com.test;

import javax.mail.Authenticator;

import javax.mail.PasswordAuthentication;

public class Email_Autherticatorbean extends Authenticator {

private String m_username = null;

private String m_userpass = null;

public void setUsername(String username) {

m_username = username;

}

public void setUserpass(String userpass) {

m_userpass = userpass;

}

public Email_Autherticatorbean(String username, String userpass) {

super();

setUsername(username);

setUserpass(userpass);

}

public PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(m_username, m_userpass);

}

}

?

?

把这两个类放在web project中运行SendMailTest.java 即可测试使用。

?

具体方法调用方式见SendMailTest.java? main方法。

?

?

?

测试邮箱：

javamail123@126.com? pwd:hello123??? smtp:smtp.126.com

testjavamail123@sohu.com? pwd:hello123

2897416077@qq.com??? pwd:123456789?? 未开通smtp服务

注意：使用某个邮箱作为主机发送邮件的时候，需要开通这个邮箱 的smtp服务

?