java电子邮件(一)

import java.io.UnsupportedEncodingException;
import java.security.Security;
import java.util.Properties;

import javax.mail.FetchProfile;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeUtility;

import org.job.util.Logger;
import org.job.util.mail.ApplicationContext;

/**
* 用于收取Gmail邮件
*
* @author wuhua
*/
public class GmailFetch {
     private static Logger logger = Logger.getLogger(GmailFetch.class);
     public static void main(String argv[]) throws Exception {
         logger.debug("开始读取邮件");
         Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
         final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

         // Get a Properties object
         Properties props = System.getProperties();
         props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
         props.setProperty("mail.pop3.socketFactory.fallback", "false");
         props.setProperty("mail.pop3.port", "995");
         props.setProperty("mail.pop3.socketFactory.port", "995");

         // 以下步骤跟一般的JavaMail操作相同
         Session session = Session.getDefaultInstance(props, null);

         // 请将红色部分对应替换成你的邮箱帐号和密码
         URLName urln = new URLName("pop3", ApplicationContext.POP3, 995, null,
                 ApplicationContext.GMAIL_MAIL_NAME,
                 ApplicationContext.GMAIL_MAIL_PASSWORD);
         Store store = session.getStore(urln);
         Folder inbox = null;
         try {
             store.connect();
             inbox = store.getFolder("INBOX");
             inbox.open(Folder.READ_ONLY);
             FetchProfile profile = new FetchProfile();
             profile.add(FetchProfile.Item.ENVELOPE);
             Message[] messages = inbox.getMessages();
             inbox.fetch(messages, profile);
             logger.debug("收件箱的邮件数：" + messages.length);
             for (int i = 0; i < messages.length; i++) {
                 // 邮件发送者
                 String from = decodeText(messages[i].getFrom()[0].toString());
                 InternetAddress ia = new InternetAddress(from);
                 logger.debug("发信人:" + ia.getPersonal() + '('
                         + ia.getAddress() + ')');
                 // 邮件标题
                 logger.debug("主题:" + messages[i].getSubject());
                 // 邮件大小
                 logger.debug("邮件大小:" + messages[i].getSize());
                 // 邮件发送时间
                 logger.debug("发送日期:" + messages[i].getSentDate());
             }
         } finally {
             try {
                 inbox.close(false);
             } catch (Exception e) {
             }
             try {
                 store.close();
             } catch (Exception e) {
             }
         }
       
         logger.debug("读取邮件完毕");
     }

     protected static String decodeText(String text)
             throws UnsupportedEncodingException {
         if (text == null)
             return null;
         if (text.startsWith("=?GB") || text.startsWith("=?gb"))
             text = MimeUtility.decodeText(text);
         else
             text = new String(text.getBytes("ISO8859_1"));
         return text;
     }

}
package org.job.six;


import java.io.UnsupportedEncodingException;
import java.security.Security;
import java.util.Properties;

import javax.mail.FetchProfile;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeUtility;

import org.job.util.Logger;
import org.job.util.mail.ApplicationContext;

/**
* 用于收取Gmail邮件
*
* @author wuhua
*/
public class GmailFetch {
     private static Logger logger = Logger.getLogger(GmailFetch.class);
     public static void main(String argv[]) throws Exception {
         logger.debug("开始读取邮件");
         Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
         final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

         // Get a Properties object
         Properties props = System.getProperties();
         props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
         props.setProperty("mail.pop3.socketFactory.fallback", "false");
         props.setProperty("mail.pop3.port", "995");
         props.setProperty("mail.pop3.socketFactory.port", "995");

         // 以下步骤跟一般的JavaMail操作相同
         Session session = Session.getDefaultInstance(props, null);

         // 请将红色部分对应替换成你的邮箱帐号和密码
         URLName urln = new URLName("pop3", ApplicationContext.POP3, 995, null,
                 ApplicationContext.GMAIL_MAIL_NAME,
                 ApplicationContext.GMAIL_MAIL_PASSWORD);
         Store store = session.getStore(urln);
         Folder inbox = null;
         try {
             store.connect();
             inbox = store.getFolder("INBOX");
             inbox.open(Folder.READ_ONLY);
             FetchProfile profile = new FetchProfile();
             profile.add(FetchProfile.Item.ENVELOPE);
             Message[] messages = inbox.getMessages();
             inbox.fetch(messages, profile);
             logger.debug("收件箱的邮件数：" + messages.length);
             for (int i = 0; i < messages.length; i++) {
                 // 邮件发送者
                 String from = decodeText(messages[i].getFrom()[0].toString());
                 InternetAddress ia = new InternetAddress(from);
                 logger.debug("发信人:" + ia.getPersonal() + '('
                         + ia.getAddress() + ')');
                 // 邮件标题
                 logger.debug("主题:" + messages[i].getSubject());
                 // 邮件大小
                 logger.debug("邮件大小:" + messages[i].getSize());
                 // 邮件发送时间
                 logger.debug("发送日期:" + messages[i].getSentDate());
             }
         } finally {
             try {
                 inbox.close(false);
             } catch (Exception e) {
             }
             try {
                 store.close();
             } catch (Exception e) {
             }
         }
       
         logger.debug("读取邮件完毕");
     }

     protected static String decodeText(String text)
             throws UnsupportedEncodingException {
         if (text == null)
             return null;
         if (text.startsWith("=?GB") || text.startsWith("=?gb"))
             text = MimeUtility.decodeText(text);
         else
             text = new String(text.getBytes("ISO8859_1"));
         return text;
     }

}


*********************************************


　　Multipart mp = (Multipart)message.getContent();

　　for (int i=0, n=multipart.getCount(); i<n; i++) {

　　Part part = multipart.getBodyPart(i));

　　String disposition = part.getDisposition();

　　if ((disposition != null) &&

　　((disposition.equals(Part.ATTACHMENT) ||

　　(disposition.equals(Part.INLINE))) {

　　saveFile(part.getFileName(), part.getInputStream());

　　}

　　}