javamail 发送邮件

import java.util.*;

import javax.mail.*;

import javax.mail.internet.*;



public class ReceiverWithText {

    private String host;

    private String user;

    private String password;

    public ReceiverWithText() {

    }



    public void setHost(String host) {

        this.host = host;

    }



    public void setUser(String user) {

        this.user = user;

    }



    public void setPassword(String password) {

        this.password = password;

    }



    public String getHost() {

        return host;

    }



    public String getUser() {

        return user;

    }



    public String getPassword() {

        return password;

    }



    public void getMail() throws Exception{

        Properties props=new Properties();

        props.put("mail.pop3.host",host);

        Session mailsession=Session.getDefaultInstance(props);

        Store store=mailsession.getStore("pop3");

        store.connect(host,user,password);

        Folder inbox=store.getDefaultFolder().getFolder("INBOX");

        inbox.open(Folder.READ_WRITE);

        Message[] message=inbox.getMessages();

        for (int i = 0; i < message.length; i++) {

            message[i].setFlag(Flags.Flag.DELETED,true);

            System.out.println("邮件主题："+message[i].getSubject());

            System.out.println("邮件发送者："+message[i].getFrom()[0]);

            System.out.println("发送时间："+message[i].getSentDate());

            System.out.println("内容："+message[i].getContent());

        }



        inbox.close(true);

        store.close();



    }



    public static void main(String[] args){

       ReceiverWithText receiver=new ReceiverWithText();

       receiver.setHost("binhao");

       receiver.setUser("jacky");

       receiver.setPassword("jacky");

       try {

           receiver.getMail();

       } catch (Exception ex) {

           ex.printStackTrace();

       }



   }



}

 import javax.mail.*;

 import java.util.*;

 import javax.mail.internet.*;



 /**

 * @author 

 */

 public class SenderWithText

 {

 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);//指定SMTP服务器

  props.put("mail.smtp.auth", "true");//指定是否需要SMTP验证

  try

  {

   Session mailSession = Session.getDefaultInstance(props);

   

   mailSession.setDebug(true);//是否在控制台显示debug信息

   

   Message message=new MimeMessage(mailSession);

   message.setFrom(new InternetAddress(from));//发件人

   message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));//收件人

   //message.addRecipient(Message.RecipientType.CC,new InternetAddress("orion@haobin.com"));//收件人

   

   message.setSubject(subject);//邮件主题

   message.setText(content);//邮件内容   

   message.setSentDate(new java.util.Date());//发信日期

   message.saveChanges();

   

   Transport transport = mailSession.getTransport("smtp");

   transport.connect(host, user, password);

   transport.sendMessage(message, message.getAllRecipients());

   transport.close();

  }catch(Exception e)

  {

   System.out.println(e);

  }

  

 }



 public static void main(String args[])

 {

  SenderWithText sm=new SenderWithText();



  sm.setHost("smtp.21cn.com");//指定要使用的邮件服务器

  sm.setAccount("hb_email","h8250238");//指定帐号和密码



  /*

 * @param String 发件人的地址

   * @param String 收件人地址

   * @param String 邮件标题

   * @param String 邮件正文

  */

  sm.send("hb_email@21cn.com","hb_email@21cn.com","测试一下javaMail","文本内容");

 }



 }