JavaMail简单接收邮件

一个简单的例子，收取所有邮件并在控制台输出。

package cn.jmail.test;
 
import java.io.*;
import java.util.*;
import javax.mail.*;
 
public class MailReceives {
    public static void main(String[] args) {
        String pop3Server = "pop3.163.com";
        String protocol = "pop3";
        String username = "xxxx";
        String password = "xxxx";
        Properties prop = new Properties();
        prop.setProperty("mail.store.protocol", protocol);
        prop.setProperty("mail.pop3.host", pop3Server);
        Session mailSession = Session.getDefaultInstance(prop,null);
        mailSession.setDebug(false);
        try {
            Store store = mailSession.getStore(protocol);
            //登录验证
            store.connect(pop3Server,username,password);
            //获取邮箱账户
            Folder folder = store.getFolder("inbox");
            //设置访问权限
            folder.open(Folder.READ_WRITE);
            //获取所有邮件
            Message[] messages = folder.getMessages();
            for(int i=0; i<messages.length; i++){
                //主题
                String subject = messages[i].getSubject();
                //发送者地址
                String from = messages[i].getFrom()[0].toString();
                System.out.println("第" + (i+1) + "封邮件的主题为：" + subject + "	发件人地址为：" + from);
                System.out.println("你想阅读此邮件吗（y/n）？");
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
                String input = bufferedReader.readLine();
                if("y".equals(input.toLowerCase())){
                    messages[i].writeTo(System.out);
                }
            }
            folder.close(false);
            store.close();
        } catch (NoSuchProviderException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

mail.jar和activation.jar　　http://pan.baidu.com/s/1qW7MaS0

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