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:
- 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 = "[email protected]";// 从那里发送
- String sendTo[] = { "[email protected]", "[email protected]" };// 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!!!!!!<br><a href=#>aaa</a>";
- // 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 = "[email protected]";
- 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:
[email protected] pwd:hello123 smtp:smtp.126.com
[email protected] pwd:hello123
[email protected] pwd:123456789 未开通smtp服务