javaMail 邮件发送和接收
package com.csair.email;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.Properties; import javax.mail.Address; import javax.mail.Flags; import javax.mail.Folder; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.NoSuchProviderException; import javax.mail.Session; import javax.mail.Store; import javax.mail.Transport; import javax.mail.internet.AddressException; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; /** * javaMail对邮件发送和接收操作 * @author Administrator * @data Mar 28, 2012 */public class TestMail { public static void main(String[] args) { // TestMail.sendMail(); TestMail.receiveMail(); // TestMail.deleteMail(); } /** * 发送邮件,注意userName名称要和from保持一致，要不然验证会失败。 * session.setDebug(true);最好开启模式，可以看到具体的流程和过程，如果有错误，也可以知道为什么错了。 */ public static void sendMail() { String host = "smtp.163.com";//邮件服务器 String from = "***@163.com";//发件人地址 String to = "420259856@qq.com";//接受地址（必须支持pop3协议） String userName = "***";//发件人邮件名称 String pwd = "";//发件人邮件密码 Properties props = new Properties(); props.put("mail.smtp.host", host); props.put("mail.smtp.auth", "true"); Session session = Session.getDefaultInstance(props); session.setDebug(true); //debug模式 MimeMessage msg = new MimeMessage(session); try { try {msg.setFrom(new InternetAddress(from,"中国南方航空"));} catch (UnsupportedEncodingException e) {// TODO Auto-generated catch blocke.printStackTrace();} msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to));//发送 msg.setSubject("中国南方航空-南航官网订票");//邮件主题 msg.setText("http://www.csair.com 南航官网订票更轻松，更快捷，更安全。");//邮件内容 msg.saveChanges(); Transport transport = session.getTransport("smtp"); transport.connect(host, userName, pwd);//邮件服务器验证 transport.sendMessage(msg, msg.getRecipients(Message.RecipientType.TO)); System.out.println("发送成功~"); } catch (AddressException e) { e.printStackTrace(); } catch (MessagingException e) { e.printStackTrace(); } } /** * 接收电子邮件 * 如果验证不通过，可能原因是没有开启userName对应的pop3功能 * 如果不会设置，请参考这里http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=166 */ public static void receiveMail() { String host = "pop3.163.com"; String userName = "***@163.com"; String passWord = ""; Properties props = new Properties(); Session session = Session.getDefaultInstance(props); session.setDebug(true); try { System.out.println("--------------接收开始--------------"); Store store = session.getStore("pop3"); store.connect(host, userName,passWord);//验证 Folder folder = store.getFolder("INBOX");//取得收件文件夹 folder.open(Folder.READ_WRITE); Message msg[] = folder.getMessages(); System.out.println("邮件个数:" + msg.length); for(int i=0; i<msg.length; i++) { Message message = msg[i]; Address address[] = message.getFrom(); StringBuffer from = new StringBuffer(); /** * 此for循环是我项目测试用的 */ for(int j=0; j<address.length; j++) { if (j > 0) from.append(";"); from.append(address[j].toString()); } System.out.println(""); System.out.println("开始读取第"+i+"封邮件信息");// System.out.println(message.getMessageNumber()); System.out.println("来自：" + from.toString()); System.out.println("大小：" + message.getSize()); System.out.println("主题：" + message.getSubject()); System.out.println("时间：" + message.getSentDate()); try {System.out.println("内容："+ message.getContent());} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} } folder.close(true);//设置关闭 store.close(); System.out.println("--------------接收完毕--------------"); } catch (NoSuchProviderException e) { e.printStackTrace(); } catch (MessagingException e) { e.printStackTrace(); } } /** * 删除邮件 */ public static void deleteMail() { String host = "pop3.sina.com"; String userName = "***@sina.com"; String passWord = "***"; Properties props = new Properties(); Session session = Session.getDefaultInstance(props); session.setDebug(true); try { System.out.println("------------开始删除------------"); Store store = session.getStore("pop3"); store.connect(host, userName, passWord);//验证邮箱 Folder folder = store.getFolder("INBOX"); folder.open(Folder.READ_WRITE);//设置我读写方式打开 int countOfAll = folder.getMessageCount();//取得邮件个数 int unReadCount = folder.getUnreadMessageCount();//已读个数 int newOfCount = folder.getNewMessageCount();//未读个数 System.out.println("总个数：" +countOfAll); System.out.println("已读个数：" +unReadCount); System.out.println("未读个数：" +newOfCount); for(int i=1; i<=countOfAll; i++) { Message message = folder.getMessage(i); message.setFlag(Flags.Flag.DELETED, true);//设置已删除状态为true if(message.isSet(Flags.Flag.DELETED)) System.out.println("已经删除第"+i+"邮件。。。。。。。。。"); } folder.close(true); store.close(); System.out.println("------------删除完成------------"); } catch (NoSuchProviderException e) { e.printStackTrace(); } catch (MessagingException e) { e.printStackTrace(); } } }?