用mail.jar包实现java发送邮件

javamail邮件的发送



package tm.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SendMail extends HttpServlet {


public SendMail() {
  super();
}


public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {

  response.setContentType("text/html");
  PrintWriter out = response.getWriter();
  request.setCharacterEncoding("gb2312");
  String from = request.getParameter("from");
  String to = request.getParameter("to");
  String subject = request.getParameter("subject");
  String context = request.getParameter("context");
  // 确定要发送的邮件服务器的地址
  String mailserver = "a4c4a156b93141d";
  // 设置邮件的传输协议
  try {
   Properties prop = new Properties();
   prop.put("mail.smtp.host", mailserver);
   prop.put("mail.smtp.auth","true");
   // 建立邮件发送的连接
   Session session = Session.getDefaultInstance(prop);
   session.setDebug(true);
   // 创建发送的信息的载体
   Message msg = new MimeMessage(session);
   // 设置相关的邮件属性
   msg.setFrom(new InternetAddress(from));
   // 点到点的发送
   msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
   
   msg.setSubject(subject);
   msg.setSentDate(new Date());
   msg.setText(context);
   msg.saveChanges();
   // 发送
   System.out.println("sending....");
  
   Transport transport=session.getTransport("smtp");
   if(transport!=null)
   {
   
    System.out.println("transport object is not null");
   }
   //transport.send(msg);
   //transport.sendMessage(message,   message.getAllRecipients());  
  
   transport.connect("a4c4a156b93141d","Admin","111111");
   System.out.println("after connect");
   transport.sendMessage(msg, msg.getAllRecipients());
    transport.close();
  
   System.out.println("send over");
  } catch (Exception e) {
   e.printStackTrace();
   out.println("send mail fail!");
  }

  out.print("send ok");
  out.flush();
  out.close();
}

}








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这是我网上找的例子！把测试的用户名等等换成实际的，就可以了！   
    import   javax.mail.*;  
    import   java.util.*;  
    import   javax.mail.internet.*;  
   
     
    public   class   SenderWithSMTPVer  
    {  
    String   host="";  
    String   user="";  
    String   password="";  
   
    public   void   setHost(String   host)  
    {  
      this.host=host;  
    }  
   
    public   void   setAccount(String   user,String   password)  
    {  
      this.user=user;  
      this.password=password;  
    }  
   
    public   void   send(String   from,String   to,String   subject,String   content)  
    {  
      Properties   props   =   new   Properties();  
      props.put("mail.smtp.host",   host);  
      props.put("mail.smtp.auth",   "true");  
      try  
      {  
        Session   mailSession   =   Session.getDefaultInstance(props);  
         
        mailSession.setDebug(true);  
         
        Message   message=new   MimeMessage(mailSession);  
        message.setFrom(new   InternetAddress(from));  
        message.addRecipient(Message.RecipientType.TO,new   InternetAddress(to));  
         
        message.setSubject(subject);  
        message.setText(content);  
        message.saveChanges();  
         
        Transport   transport   =null;  
        transport=mailSession.getTransport("smtp");  
        if(transport==null)  
                                                  {  
                                                  System.out.println("999999");  
                                                  }  
                                                 
        //Transport   transport   =   mailSession.getTransport("smtp");  
        System.out.println("111");  
        System.out.println(host);  
        System.out.println(user);  
        System.out.println(password);  
        transport.connect(host,   user,   password);  
        System.out.println("222");  
        transport.sendMessage(message,   message.getAllRecipients());  
        System.out.println("333");  
        transport.close();  
      }catch(Exception   e)  
      {  
        System.out.println(e);  
      }  
       
    }  
   
    public   static   void   main(String   args[])  
    {  
      SenderWithSMTPVer   sm=new   SenderWithSMTPVer();  
   
      sm.setHost("smtp.abc.com");  
      sm.setAccount("abc","abcabc");  
   
       
      sm.send("[e-mail]","[e-mail]","biaoti","neirong");  
    }  
   
    }