javax.mail java 发送邮件的实现
下面有完整可以运行的代码。本人亲自测试，可以运行。附件有所用到的jar包和源码。需要的朋友可以直接下载进行测试和研究,本人也是在网上找到的代码。一起分享下
直接上源码
1. 邮件的基本信息(方便就直接设置为静态了)
下面最好是做为一个javabean
package com.lgf.Email;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.Address;import javax.mail.Authenticator;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 com.lgf.SendEmail.MailAuthenticator;public class SendEmail {/** * 发送普通邮件 * @throws Exception */ public void doSendNormalMail() { // 获取系统环境 Properties prop = new Properties(); Authenticator auth = null;//判断发送邮件是否需要验证if (EmailMessage.validate) {// 邮件服务器认证 用户名和密码auth =new MailAuthenticator(); }//添加必要的信息prop.put("mail.smtp.host", EmailMessage.Email_Host); prop.put("mail.smtp.auth", "true"); // 设置对话和邮件服务器进行通讯Session session = Session.getDefaultInstance(prop, auth); //在控制台显示Debug信息session.setDebug(true);//设置邮件对象Message message = new MimeMessage(session); try { // 设置邮件主题 message.setSubject(EmailMessage.Email_Subject); // 设置邮件标题 message.setHeader("Header", EmailMessage.Email_Header); // 设置发送时间 message.setSentDate(EmailMessage.sendDate);// 设置发信人地址 和 名字Address address = new InternetAddress(EmailMessage.FROM, EmailMessage.FROM_NAME); //把发件人信息添加到信息中message.setFrom(address); //设置发件人地址Address toAddress = new InternetAddress(EmailMessage.TO); // 设置接收人地址message.setRecipient(Message.RecipientType.TO, toAddress); // 设置多个收件人地址 // message.addRecipient(Message.RecipientType.TO,new InternetAddress("xxx@xxx.com")); // 设置邮件格式message.setContent("Content", EmailMessage.Email_Content); // 设置邮件内容 必须在设置文件格式后面message.setText(EmailMessage.Email_Body); //保存上面添加的信息message.saveChanges(); // 发送邮件 System.out.println("sendNormalEmail() 开始发送邮件……"); Transport.send(message); System.out.println("发送成功！"); } catch (Exception e){ System.out.println("出错"); e.printStackTrace(); } } /** * 发送HTML格式的邮件 */public void doSendHtmlMail() { // 获取系统环境 Properties prop = new Properties(); Authenticator auth = null;if (EmailMessage.validate){// 邮件服务器认证 用户名和密码auth = new MailAuthenticator();}//添加必要的信息prop.put("mail.smtp.host", EmailMessage.Email_Host); prop.put("mail.smtp.auth", "true"); // 设置对话和邮件服务器进行通讯Session session = Session.getDefaultInstance(prop, auth); //设置邮件对象Message message = new MimeMessage(session); try { // 设置邮件主题 message.setSubject(EmailMessage.Email_Subject); // 设置邮件标题 message.setHeader("Header", EmailMessage.Email_Header); // 设置发送时间 message.setSentDate(EmailMessage.sendDate);// 设置发信人地址 和 名字Address address = new InternetAddress(EmailMessage.FROM, EmailMessage.FROM_NAME); //把发件人信息添加到信息中message.setFrom(address); //设置发件人地址Address toAddress = new InternetAddress(EmailMessage.TO); // 设置接收人地址message.setRecipient(Message.RecipientType.TO, toAddress); // 设置多个收件人地址 // message.addRecipient(Message.RecipientType.TO,new InternetAddress("xxx@xxx.com")); //设置发送信息的内容 下面为发送hmml//设置邮件格式EmailMessage.Email_Content = "text/html; charset=utf-8";message.setContent(EmailMessage.Email_Body, EmailMessage.Email_Content); //保存上面添加的信息message.saveChanges(); // 发送邮件 System.out.println("doSendHtmlMail() 开始发送邮件……"); Transport.send(message); System.out.println("发送成功！"); } catch (Exception e){ System.out.println("出错"); e.printStackTrace(); } } /** * 发送带有附件格式的邮件 */public void doSendAttachmentMail() { // 获取系统环境 Properties prop = new Properties(); Authenticator auth = null;if (EmailMessage.validate){// 邮件服务器认证 用户名和密码auth = new MailAuthenticator();}//添加必要的信息prop.put("mail.smtp.host", EmailMessage.Email_Host); prop.put("mail.smtp.auth", "true"); // 设置对话和邮件服务器进行通讯Session session = Session.getDefaultInstance(prop, auth); //设置邮件对象Message message = new MimeMessage(session); try { // 设置邮件主题 message.setSubject(EmailMessage.Email_Subject); // 设置邮件标题 message.setHeader("Header", EmailMessage.Email_Header); // 设置发送时间 message.setSentDate(EmailMessage.sendDate);// 设置发信人地址 和 名字Address address = new InternetAddress(EmailMessage.FROM, EmailMessage.FROM_NAME); //把发件人信息添加到信息中message.setFrom(address); //设置发件人地址Address toAddress = new InternetAddress(EmailMessage.TO); // 设置接收人地址message.setRecipient(Message.RecipientType.TO, toAddress); // 设置多个收件人地址 // message.addRecipient(Message.RecipientType.TO,new InternetAddress("xxx@xxx.com")); //设置发送信息的内容 下面为发送附件message.setContent(EmailMessage.Email_Body, EmailMessage.Email_Content); BodyPart messageBodyPart = new MimeBodyPart(); messageBodyPart.setText("bodypart"); Multipart multipart = new MimeMultipart(); multipart.addBodyPart(messageBodyPart); messageBodyPart = new MimeBodyPart(); //设置上传的资源DataSource source = new FileDataSource("E:\\3.doc"); //添加到messageBodyPart.setDataHandler(new DataHandler(source)); //设置文件名称,记得后缀名messageBodyPart.setFileName("test.doc"); multipart.addBodyPart(messageBodyPart); message.setContent(multipart); //保存上面添加的信息message.saveChanges(); // 发送邮件 System.out.println("doSendAttachmentMail() 开始发送邮件……"); Transport.send(message); System.out.println("发送成功！"); } catch (Exception e){ System.out.println("出错"); e.printStackTrace(); } } /** * @param args */public static void main(String[] args){//new SendEmail().doSendNormalMail();//new SendEmail().doSendHtmlMail();new SendEmail().doSendAttachmentMail();}}