如何用JMAIL发送一封邮件??

Question

http://www.vckbase.com/document/viewdoc/?id=684
http://www.vckbase.com/document/viewdoc/?id=712按照VCKBASE上面方法不能发送成功，怎么回事？ 很久以前我试过这个，好象是可以用的难道是现在smtp服务器屏蔽了jmail发送的邮件？

Answer 1

import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.Message;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import java.util.Properties;
import java.util.Date;
import java.io.File;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.io.FileOutputStream;
import javax.activation.FileDataSource;
import javax.activation.DataHandler;
//import com.posisoft.jdavmail.*;public class MailSend extends javax.mail.Authenticator
{
private String smtp_username ;
private String smtp_password ;
public MailSend(String usr,String p)
{
set_smtp_auth(usr,p);
}
public MailSend()
{
}
private void set_smtp_auth(String usr,String pwd)
{
smtp_username = usr;
smtp_password = pwd;
}
private static String exceptionFileName = "";
static void setExceptionFileName(String s)
{
exceptionFileName = s;
}

public javax.mail.PasswordAuthentication getPasswordAuthentication()
{
return new javax.mail.PasswordAuthentication(smtp_username, smtp_password);
}
   public static String exception_tostring(Exception e, String filename)
   {
    String sret = null;
    try
    {
ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
PrintStream ps = new PrintStream(bos);
e.printStackTrace(ps); 
ps.flush(); 
ps.close(); 
bos.close(); 
sret = bos.toString();
if(filename!=null&&filename.length()>0)
{
FileOutputStream flog = new FileOutputStream(filename);
flog.write(bos.toByteArray());
flog.close();
}
    }
    catch(Exception e2)
    {
    sret = sret +" can't get exception description";
    }
return sret ;    
   }
   public static Properties getProps(String smtp_server,String smtp_port,
   String bauth)
   {
    Properties props = System.getProperties();
    if(smtp_server!=null)
    props.put("mail.smtp.host", smtp_server);
    if(smtp_port!=null)
    props.put("mail.smtp.port", smtp_port);
    if(bauth!=null)
    props.put("mail.smtp.auth", bauth);
    return props;
   
   }
public static String send_smtp_mail_native(
javax.mail.Session session,
String from_mail,
String to_mail,
String subject, String body_text, String attach_file_name
)
{
if(session==null)
return "Error when send SMTP mail:null session";
try
{     
session.setDebug(false);
Message message = prepareMimeMessage(from_mail,to_mail,subject,body_text,attach_file_name,session);
Transport.send(message);
}
catch(Exception ex)
{
return exception_tostring(ex,exceptionFileName);
}
return "Mail was sent out successfully!";
}
public static String send_hotmail_native(String hotmail_account, String mail_pwd, String receive_mail,
String subject,String body,String attach_file_name,
Session ses, Transport transport)
{
if(hotmail_account ==null || mail_pwd==null || receive_mail==null)
return "send mail error:Invalid account information";
if(subject==null && body==null && attach_file_name==null)
return "send mail error:Invalid message";
try
{
transport.connect(null, hotmail_account, mail_pwd);
  // Prepare the message
  MimeMessage txMsg = prepareMimeMessage(hotmail_account,receive_mail,
  subject,body,attach_file_name,ses);
  transport.sendMessage(txMsg, txMsg.getAllRecipients());
} 
catch (Exception ex) 
{
return exception_tostring(ex,exceptionFileName);
}
return "Mail was sent successfully!";
}

Answer 2

private static MimeMessage prepareMimeMessage(
String hotmail_account, String receive_mail,
String subject,String body,String attach_file_name,
Session session) throws Exception
{
MimeMessage mime_msg = new MimeMessage(session);
if(subject!=null)
mime_msg.setSubject(subject);
else
mime_msg.setSubject("(no subject)");
String mail_body="";
if(body!=null)
mail_body = (body);
else
mail_body = ("(empty)");
boolean has_attach_file = false;
if(attach_file_name!=null && attach_file_name.length()>0)
{
File tmp = new File(attach_file_name);
if (!tmp.exists() || !tmp.canRead() || tmp.isDirectory())
{
mail_body += " attach file:";
mail_body += attach_file_name;
mail_body += "  read error";
}
else
has_attach_file = true;
}
InternetAddress addrFrom = new InternetAddress(hotmail_account);
mime_msg.setFrom(addrFrom);
InternetAddress addrTo = new InternetAddress(receive_mail, receive_mail);
mime_msg.addRecipient(Message.RecipientType.TO, addrTo);
if(has_attach_file)
{
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(mail_body);
Multipart mp = new MimeMultipart();
mp.addBodyPart(messageBodyPart);
////////////////////attach a file
MimeBodyPart mbp=new MimeBodyPart();
FileDataSource fds=new FileDataSource(attach_file_name);
mbp.setDataHandler(new DataHandler(fds));
mbp.setFileName(fds.getName());
mp.addBodyPart(mbp);
mime_msg.setContent(mp);
System.out.println("attach file:"+attach_file_name);
}
else
{
mime_msg.setText(mail_body);
}
mime_msg.setSentDate(new Date());
return mime_msg;
}
public static void setSocksProxy(String server, String port)
{
if(server==null || port==null)
{
System.setProperty("socksProxySet", "false");
}
else
{
System.setProperty("socksProxySet", "true");
System.setProperty("socksProxyHost", server);
System.setProperty("socksProxyPort", port);
}
}
}