java发邮件例子

package test;import java.util.Date;import java.util.Properties;import javax.mail.Address;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.PasswordAuthentication;import javax.mail.SendFailedException;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;public class TestMail {public class Email_Autherticator extends Authenticator {String username = "userFrom";String password = "pwd";public Email_Autherticator() {super();}public Email_Autherticator(String user, String pwd) {super();username = user;password = pwd;}public PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(username, password);}}private String host = "192.168.0.177";//private String host = "smtp.126.com"; private String mail_head_name = "this is head of this mail";private String mail_head_value = "this is head of this mail";private String mail_to = "userTo@test.com";private String mail_from = "userFrom@test.com";private String mail_subject = "this is the subject of this test mail";private String mail_body = "this is mail_body of this test mail";private String personalName = "personalName";public void sendMail() throws SendFailedException {try {Properties props = new Properties();// 获取系统环境Authenticator auth = new Email_Autherticator();// 进行邮件服务用户认证props.put("mail.smtp.host", host);props.put("mail.smtp.auth", "true");System.out.println(props);Session session = Session.getDefaultInstance(props, auth);// 设置session,和邮件服务器进行通讯MimeMessage message = new MimeMessage(session);message.setContent("Hello", "text/plain");// 设置邮件格式message.setSubject(mail_subject);// 设置邮件主题message.setText(mail_body);// 设置邮件内容message.setHeader(mail_head_name, mail_head_value);// 设置邮件标题message.setSentDate(new Date());// 设置邮件发送时期Address address = new InternetAddress(mail_from, personalName);message.setFrom(address);// 设置邮件发送者的地址Address toaddress = new InternetAddress(mail_to);// 设置邮件接收者的地址message.addRecipient(Message.RecipientType.TO, toaddress);System.out.println(message);Transport.send(message);System.out.println("Send Mail Ok!");} catch (Exception e) {e.printStackTrace();}// return flag;}public static void main(String[] args) throws SendFailedException{TestMail m = new TestMail();m.sendMail();}}