Java Mail与Apache Mail发送邮件示例

 public static void main(String[] args) throws Exception {
         final String user = "779554589";
         final String password = "";
         String fromAddress = "779554589@qq.com";
         String toAddress = "loadfate@163.com";
         String subject = "邮件测试主题";
         String content = "这是一个测试邮件<b>哈哈</b>";
         //配置参数
         Properties props = new Properties();
         props.setProperty("mail.smtp.auth", "true");
         props.setProperty("mail.transport.protocol", "smtp");
         props.setProperty("mail.host", "smtp.qq.com");
         // 方法一：使用transport对象发送邮件
         {
             //通过参数生成会话
             Session session = Session.getInstance(props);
             //启用调试模式
             session.setDebug(true);
             //创建一封邮件，并设置信息
             Message message = new MimeMessage(session);
             message.setFrom(new InternetAddress(fromAddress));
             message.setSubject(subject);
             message.setText(content);
             //创建传输
             Transport transport = session.getTransport();
             //连接smtp服务器
             transport.connect(user, password);
             //发送
             transport.sendMessage(message, new InternetAddress[] { new InternetAddress(toAddress) });
             transport.close();
         }
         // 方法二：使用Transport类静态方法发送邮件
         {
             //生成Session时以获取授权连接
             Session session = Session.getInstance(props, new Authenticator() {
                 @Override
                 protected PasswordAuthentication getPasswordAuthentication() {
                     return new PasswordAuthentication(user, password);
                 }
             });
             session.setDebug(true);
             //创建一封邮件，并设置信息
             Message message = new MimeMessage(session);
             message.setSubject(subject);
             message.setFrom(new InternetAddress(fromAddress));
             message.setRecipient(RecipientType.TO, new InternetAddress(toAddress));
             message.setContent(content, "text/html;charset=utf-8");
             //直接发送，message通过已经授权的Session生成
             Transport.send(message);
         }
     }

 public class ApacheMailTest {
     // smtp服务器
     private String hostName = "smtp.qq.com";
     // 帐号与密码
     private String userName = "779554589";
     private String password = "这是个秘密";
     // 发件人
     private String fromAddress = "779554589@qq.com";
     // 发件人姓名
     private String fromName = "loadfate";
     public static void main(String[] args) throws Exception {
         // 收件人与收件人名字
         String toAddress = "loadfate@163.com";
         String toName = "loadfate";
         ApacheMailTest test = new ApacheMailTest();
         // 所有的异常都为处理，方便浏览
         test.sendSimpleEmail(toAddress, toName);
         test.sendHtmlEmail(toAddress, toName);
         test.sendMultiPartEmail(toAddress, toName);
         System.out.println("发送完成");
     }
     // 发送简单邮件，类似一条信息
     public void sendSimpleEmail(String toAddress, String toName) throws Exception {
         SimpleEmail email = new SimpleEmail();
         email.setHostName(hostName);// 设置smtp服务器
         email.setAuthentication(userName, password);// 设置授权信息
         email.setCharset("utf-8");
         email.setFrom(fromAddress, fromName, "utf-8");// 设置发件人信息
         email.addTo(toAddress, toName, "utf-8");// 设置收件人信息
         email.setSubject("测试主题");// 设置主题
         email.setMsg("这是一个简单的测试！");// 设置邮件内容
         email.send();// 发送邮件
     }
     // 发送Html内容的邮件
     public void sendHtmlEmail(String toAddress, String toName) throws Exception {
         HtmlEmail email = new HtmlEmail();
         email.setHostName(hostName);
         email.setAuthentication(userName, password);
         email.setCharset("utf-8");
         email.addTo(toAddress, toName, "utf-8");
         email.setFrom(fromAddress, fromName, "utf-8");
         email.setSubject("这是一个html邮件");
         // 设置html内容，实际使用时可以从文本读入写好的html代码
         email.setHtmlMsg("<div style='width:100px;height:200px;'>a</div>");
         email.send();
     }
     // 发送复杂的邮件，包含附件等
     public void sendMultiPartEmail(String toAddress, String toName) throws Exception {
         MultiPartEmail email = null;
         email = new MultiPartEmail();
         email.setHostName(hostName);
         email.setAuthentication(userName, password);
         email.setCharset("utf-8");
         email.addTo(toAddress, toName, "utf-8");
         email.setFrom(fromAddress, fromName, "utf-8");
         email.setSubject("这是有附件的邮件");
         email.setMsg("<a href='#'>测试内容</a>");
         // 为邮件添加附加内容
         EmailAttachment attachment = new EmailAttachment();
         attachment.setPath("D:\\邮件.txt");// 本地文件
         // attachment.setURL(new URL("http://xxx/a.gif"));//远程文件
         attachment.setDisposition(EmailAttachment.ATTACHMENT);
         attachment.setDescription("描述信息");
         // 设置附件显示名字，必须要编码，不然中文会乱码
         attachment.setName(MimeUtility.encodeText("邮件.txt"));
         // 将附件添加到邮件中
         email.attach(attachment);
         email.send();
     }
 }