JAVA邮件接收

import java.util.Properties;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
//import com.sun.mail.pop3.POP3Folder;
import com.sun.mail.imap.*;
/**
* 使用pop3协议获取未读邮件数
*
*/
class Email3 {
public static void main(String[] args) throws Exception {
String user = "zhui@";// 邮箱的用户名
String password = "*********"; // 邮箱的密码
Properties prop = System.getProperties();
prop.put("mail.store.protocol", "pop3");
prop.put("mail.pop3.host", "");
//222.24.19.131 IMAP
/*
Session session = Session.getInstance(prop);
session.setDebug(true);
Store store = (Store) session.getStore("pop3"); // 使用imap会话机制，连接服务器
store.connect("", user, password);
*/
URLName url = new URLName("pop3", "", 110, "INBOX", "帐号", "密码");
Session session = Session.getInstance(prop, null);
session.setDebug(true);
Store store = session.getStore(url);
store.connect();
Folder folder = (Folder) store.getFolder("INBOX"); // 收件箱
//folder.open(Folder.READ_WRITE);
folder.open(Folder.READ_ONL Y);
// 获取总邮件数
int total = 0;
total = folder.getMessageCount();
//total = folder.getUnreadMessageCount();
//total = folder.getNewMessageCount();
System.out.println("-----------------共有未读邮件：" + total + " 封--------------");
System.out.println("-----------------共有已读邮件：" + folder.getUnreadMessageCount() + " 封--------------");
System.out.println("-----------------共有新邮件：" + folder.getNewMessageCount() + " 封--------------");
// 得到收件箱文件夹信息，获取邮件列表
//System.out.println("未读邮件数：" + folder.getUnreadMessageCount());
Message[] messages = folder.getMessages();
int messageNumber = 0;
for (Message message : messages) {
System.out.println("发送时间：" + message.getSentDate());
System.out.println("主题：" + message.getSubject());
//System.out.println("内容：" + message.getContent());
Flags flags = message.getFlags();
if (flags.contains(Flags.Flag.SEEN))
System.out.println("这是一封已读邮件");
else {
System.out.println("未读邮件");
}
System.out.println("==================================================== ====");
System.out.println("==================================================== ====");
//每封邮件都有一个MessageNumber，可以通过邮件的MessageNumber在收件箱里面取得该邮件
messageNumber = message.getMessageNumber();
Message msg = folder.getMessage(messageNumber);
//System.out.println(msg.getContent()+msg.getContentType());
}
// 释放资源
if (folder != null)
folder.close(false);
if (store != null)
store.close();
}
}。