用java编写程序，发邮件

Question

如何用java编写邮件程序，来发送给某个用户？
没有遇到过这种情况？有知道这方面内容的吗？

Answer 1

import java.util.Date; 
import java.util.Properties; 
import javax.servlet.*; //此句报错误的话请注释 
import javax.mail.Session; 
import javax.mail.Authenticator; 
import javax.mail.PasswordAuthentication; 
import javax.mail.Message; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.InternetAddress; 
import javax.mail.Transport; 
public class javaMail { 
      private Properties properties; 
      private Session mailSession; 
      private MimeMessage mailMessage; 
      private Transport trans; 
      public javaMail() { 
      } 
      public void sendMail() { 
          try { 
              properties = new Properties(); 
              //设置邮件服务器 
              properties.put("mail.smtp.host", "smtp.sina.com"); 
              //验证 
              properties.put("mail.smtp.auth", "true"); 
              //根据属性新建一个邮件会话 
              mailSession = Session.getInstance(properties, 
                                                new Authenticator() { 
                  public PasswordAuthentication getPasswordAuthentication() { 
                      return new PasswordAuthentication("[email protected]", 
                          "*******"); 
                  } 
              }); 
              mailSession.setDebug(true); 
              //建立消息对象 
              mailMessage = new MimeMessage(mailSession); 
              //发件人 
              mailMessage.setFrom(new InternetAddress("[email protected]")); 
              //收件人 
              mailMessage.setRecipient(MimeMessage.RecipientType.TO, 
                                  new InternetAddress("[email protected]")); 
              //主题 
              mailMessage.setSubject("测试"); 
              //内容 
              mailMessage.setText("test"); 
              //发信时间 
              mailMessage.setSentDate(new Date()); 
              //存储信息 
              mailMessage.saveChanges(); 
              // 
              trans = mailSession.getTransport("smtp"); 
              //发送 
              trans.send(mailMessage); 
          } catch (Exception e) { 
              e.printStackTrace(); 
          } finally { 
          } 
      } 
/** 
  * @param args 
  */ 
public static void main(String[] args) { 
  // TODO Auto-generated method stub 
  javaMail javaMail=new javaMail(); 
  javaMail.sendMail(); 
} 
}

Answer 2

需要mail.jar 和activation.jar两个包

Answer 3

org.apache.commons.mail.HtmlEmail;public void doSendMail(String emailTitle, String sendFrom, String password,
String sendTo, String emailBody) {
HtmlEmail email = new HtmlEmail();
email.setHostName("smtp.126.com");
email.setAuthentication(sendFrom, password);
try {
email.addTo(sendTo);
email.setFrom(sendFrom);
// *********************************
// email.setSSL(true);
// email.setSslSmtpPort("465");
// *********************************
email.setSubject(emailTitle);
email.setCharset("gb2312");
email.setHtmlMsg(emailBody);
email.send();
} catch (EmailException e) {
e.printStackTrace();
}
}恩，差不多了。这是126的。。别的也可以。。改改hostName.port...

Answer 4

需要mail.jar，大概425MB。
public class MailSendFactory
{
private String username;
private String password;
private String smtpServer;
private String fromMailAddress; private static MailSendFactory instance; private MailSendFactory()
{
init();
} private void init()
{
username = ******;
password = ******;
smtpServer = ******;
fromMailAddress = ******;
} public static MailSendFactory getInstance()
{
if (instance == null)
{
instance = new MailSendFactory();
}
return instance;
} public void sendMail(InternetAddress[] addrTo, InternetAddress[] addrCC,
InternetAddress[] addrBCC, String subject, String content,
ArrayList<File> lstAttach) throws AddressException,
MessagingException
{
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", smtpServer);
// 获得邮件会话对象
Session session = Session.getDefaultInstance(props, new Authenticator()
{
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(username, password);
}
});
MimeMessage mimeMsg = new MimeMessage(session); // 创建MIME邮件对象 mimeMsg.setFrom(new InternetAddress(fromMailAddress));// 发件人
if (addrTo.length > 0)
{
mimeMsg.setRecipients(Message.RecipientType.TO, addrTo);// 收件人
}
if (addrCC.length > 0)
{
mimeMsg.setRecipients(Message.RecipientType.CC, addrCC);// 抄送
}
if (addrBCC.length > 0)
{
mimeMsg.setRecipients(Message.RecipientType.BCC, addrBCC);// 暗送
}
mimeMsg.setSubject(subject);// 主题
mimeMsg.setSentDate(new Date());// 发送日期 // 正文
Multipart mp = new MimeMultipart();
BodyPart bp = new MimeBodyPart();
bp.setContent("" + content, "text/html;charset=GB2312");
mp.addBodyPart(bp);
// 附件
if (lstAttach.size() > 0)
{
for (File file : lstAttach)
{
BodyPart bpAttach = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(file);
bpAttach.setDataHandler(new DataHandler(fileds));
bpAttach.setFileName(fileds.getName());
mp.addBodyPart(bpAttach);
}
}
mimeMsg.setContent(mp);
mimeMsg.saveChanges(); Transport.send(mimeMsg);
}
}

Answer 5

你丫的，吓人哦。看清楚了,mail.jar
你当时VS安装程序啊

Answer 6

mail.jar有这么大么？来，我们讨论讨论

Answer 7

mail.jar 
大小:319 KB (327,603 字节)
占用空间:320 KB (327,680 字节)

Answer 8

别瞎搞，一个mail.jar如果4百多兆，还开发什么邮件服务。
最多是服务器，我想才会有这么大。我说你才要谦虚点才行。

Answer 9

http://d.download.csdn.net/down/398258/dbhunter
LZ可以去下~

Answer 10

javamail-1.4.2 mail.jar,425KB。
咋的，写错个单位了嘛，至于你那个没素质的语气么？
还有从你上面贴的代码看，水平比较菜，不服气？

Answer 11

报错：
javax.mail.MessagingException: Could not connect to SMTP host: smtp.sina.com.cn, port: 25;
  nested exception is:
java.net.ConnectException: Connection timed out: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1282)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
at javax.mail.Service.connect(Service.java:297)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
at javaMail.sendMail(javaMail.java:52)
at javaMail.main(javaMail.java:64)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1250)
... 8 more

Answer 12

javamail  邮件发送接收都可以做！
但是要确保你的Email邮箱开通pop,smtp服务