电子邮件系统 3----JavaMail POP3接收邮件示例 .

/**
 * CrazyItTest
 * 使用JavaMail 编写接收邮件示例
 */
 package com.labci.javamail.test;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.Properties;
 import javax.mail.Folder;
 import javax.mail.Message;
 import javax.mail.MessagingException;
 import javax.mail.Session;
 import javax.mail.Store;
 /**
 * @author Bill Tu(tujiyue/iwtxokhtd)
 * May 27, 2011[10:04:20 PM]
 *
 */
 public class ReceiveEmailTest {
     private static final String  PROTOCOL = "pop3";
     private static final String  HOST = "pop3.163.com";
     private static final String USER = "iwtxokhtd";
     private static final String PASS="123456";

     private static Session getMailSession(){
         Properties props=new Properties();
         props.put("mail.store.protocol", PROTOCOL);
         props.put("mail.pop3.host", HOST);

        Session session=Session.getDefaultInstance(props);
         return session;
    }


     private static void receiveEmail() throws MessagingException, IOException{
        Store store=getMailSession().getStore();
        store.connect(HOST,USER,PASS);

         Folder receiveFolder=store.getFolder("inbox");//对于POP3协议此参数值只能是inbox
         receiveFolder.open(Folder.READ_WRITE);//设置收件夹打开后的读写权限

         int messageCount=receiveFolder.getMessageCount();
         System.out.println("总共拥有邮件数："+messageCount);

         if(messageCount>0){
             Message []messages=receiveFolder.getMessages();//得到所有的邮件
             for(int i=0;i<messages.length;i++){
                Message msg=messages[i];
                 System.out.println("第"+(i+1)+"封邮件的主题为："+msg.getSubject()
                         +" ,其发送人地址为："+msg.getFrom()[0]);
                 System.out.println("您是否要阅读此邮件？若要请输入yes,否则就输入no:");
                 BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
                String input=br.readLine();
                 if(input!=null && !"".equals(input)
                         &&"yes".equals(input.trim())){
                     msg.writeTo(System.out);//直接输出到控制台,当然也输出到文件中。
                }
            }
        }
         receiveFolder.close(true);//关闭邮件夹对象
         store.close();//断开连接


    }



     /**
     * @param args
     * @throws IOException
     * @throws MessagingException
     */
     public static void main(String[] args) throws MessagingException, IOException {
        receiveEmail();
    }
}

/** * CrazyItTest * 使用JavaMail 编写接收邮件示例 */ package com.labci.javamail.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Properties; import javax.mail.Folder; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.Store; /** * @author Bill Tu(tujiyue/iwtxokhtd) * May 27, 2011[10:04:20 PM] * */ public class ReceiveEmailTest { private static final String PROTOCOL = "pop3"; private static final String HOST = "pop3.163.com"; private static final String USER = "iwtxokhtd"; private static final String PASS="123456"; private static Session getMailSession(){ Properties props=new Properties(); props.put("mail.store.protocol", PROTOCOL); props.put("mail.pop3.host", HOST); Session session=Session.getDefaultInstance(props); return session; } private static void receiveEmail() throws MessagingException, IOException{ Store store=getMailSession().getStore(); store.connect(HOST,USER,PASS); Folder receiveFolder=store.getFolder("inbox");//对于POP3协议此参数值只能是inbox receiveFolder.open(Folder.READ_WRITE);//设置收件夹打开后的读写权限 int messageCount=receiveFolder.getMessageCount(); System.out.println("总共拥有邮件数："+messageCount); if(messageCount>0){ Message []messages=receiveFolder.getMessages();//得到所有的邮件 for(int i=0;i<messages.length;i++){ Message msg=messages[i]; System.out.println("第"+(i+1)+"封邮件的主题为："+msg.getSubject() +" ,其发送人地址为："+msg.getFrom()[0]); System.out.println("您是否要阅读此邮件？若要请输入yes,否则就输入no:"); BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String input=br.readLine(); if(input!=null && !"".equals(input) &&"yes".equals(input.trim())){ msg.writeTo(System.out);//直接输出到控制台,当然也输出到文件中。 } } } receiveFolder.close(true);//关闭邮件夹对象 store.close();//断开连接 } /** * @param args * @throws IOException * @throws MessagingException */ public static void main(String[] args) throws MessagingException, IOException { receiveEmail(); } }