Java实现收发电子邮件

package com.mail; import javax.mail.AuthenticationFailedException; import javax.mail.internet.*; import javax.mail.*; import java.rmi.RemoteException; import java.util.*; public class MailSender { public static String SMTP_HOST = "smtp.sina.com.cn"; public static String SMTP_USER = "lzy860515"; public static String SMTP_PASSWORD = "liuzhiyuan860515"; public static String SMTP_AUTH = "true"; public static void sendMail(String toAddr, String subject, String body, String fromAddr) { try { Properties props = new Properties(); props.put("mail.smtp.host", SMTP_HOST); props.put("mail.smtp.auth", SMTP_AUTH);// 同时通过验证 Session session; if ("true".equals(SMTP_AUTH)) { // smtp服务器需要验证，用MyAuthertiactor来创建mail session MyAuthenticator myauth = new MyAuthenticator(SMTP_USER, SMTP_PASSWORD); session = Session.getInstance(props, myauth); } else { session = Session.getDefaultInstance(props, null); } Message msg = new MimeMessage(session); msg.setFrom(new InternetAddress(fromAddr)); InternetAddress[] tos = InternetAddress.parse(toAddr); msg.setRecipients(Message.RecipientType.TO, tos); msg.setSubject(subject); msg.setText(body); Transport transport = session.getTransport("smtp"); transport.connect(SMTP_HOST, 26, SMTP_USER, SMTP_PASSWORD);// 以smtp方式登录邮箱 Transport.send(msg); transport.close(); System.out.println("Mail is Sent"); } catch (Exception e) { System.out.println(e); } } public static void main(String args[]) { sendMail("lzy860515@sina.com", "测试", "测试内容\n sunny", "lzy860515@sina.com"); System.out.println("发送成功！"); } }