public static voidmain(String args[]) {
Properties props= new Properties(); //参数配置
props.setProperty("mail.transport.protocol", "smtp"); //使用的协议(JavaMail规范要求)
props.setProperty("mail.smtp.host", "smtp."); //发件人的邮箱的SMTP服务器地址
props.setProperty("mail.smtp.auth", "true"); //需要请求认证//PS:某些邮箱服务器要求SMTP连接需要使用SSL安全认证(为了提高安全性,邮箱支持SSL连接,也可以自己开启),//如果无法连接邮件服务器,仔细查看控制台打印的 log,如果有有类似"连接失败,要求 SSL安全连接"等错误,//开启 SSL安全连接//SMTP服务器的端口(非 SSL连接的端口一般默认为 25,可以不添加,如果开启了SSL连接,//需要改为对应邮箱的SMTP服务器的端口,具体可查看对应邮箱服务的帮助,//QQ邮箱的SMTP(SLL)端口为465或587
final String smtpPort = "465";
props.setProperty("mail.smtp.port", smtpPort);
props.setProperty("mail.smtp.socketFactory.class", ".ssl.SSLSocketFactory");
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.socketFactory.port", smtpPort);
Session session=Session.getDefaultInstance(props);
session.setDebug(false);try{
Store store= session.getStore("imap");
store.connect("imap.", "it01@", "*****");//change the user and password accordingly
Folder folder = store.getFolder("inbox");if (!folder.exists()) {
System.out.println("inbox not found");
System.exit(0);
}
folder.open(Folder.READ_ONLY);
Message[] messages=folder.getMessages();if (messages == null || messages.length <= 0) {
System.out.println("this inbox no messages");
System.exit(0);
}for(Message message : messages) {
String subject=message.getSubject();if(StringUtils.isNotBlank(subject)) {
System.out.println("subject:" +subject);
}/** 解析邮件内容*/Object content=message.getContent();if (null !=content) {if (content instanceofMimeMultipart) {
MimeMultipart multipart=(MimeMultipart)content;
parseMultipart(multipart);
}
}
}
}catch(Exception e) {
e.printStackTrace();
}
}/*** 对复杂邮件的解析
*
*@parammultipart
*@throwsMessagingException
*@throwsIOException*/
public static void parseMultipart(Multipart multipart) throwsMessagingException, IOException {int count =multipart.getCount();for (int idx = 0; idx < count; idx++) {
BodyPart bodyPart=multipart.getBodyPart(idx);
System.out.println(bodyPart.getContentType());if (bodyPart.isMimeType("text/plain")) {
System.out.println(bodyPart.getContent());
}else if (bodyPart.isMimeType("text/html")) {
System.out.println(bodyPart.getContent());
}else if (bodyPart.isMimeType("multipart/*")) {
Multipart mpart=(Multipart)bodyPart.getContent();
parseMultipart(mpart);
}else if (bodyPart.isMimeType("application/octet-stream")) {
String disposition=bodyPart.getDisposition();
System.out.println(disposition);if (StringUtils.isNotBlank(disposition) &&disposition.equalsIgnoreCase(BodyPart.ATTACHMENT)) {
String fileName=bodyPart.getFileName();
InputStream is=bodyPart.getInputStream();
copy(is,new FileOutputStream("D:\\tofba\\email\\" +fileName));
}
}
}
}/*** 文件拷贝,在用户进行附件下载的时候,可以把附件的InputStream传给用户进行下载
*
*@paramis
*@paramos
*@throwsIOException*/
public static voidcopy(InputStream is, OutputStream os)throwsIOException {byte[] bytes = new byte[1024];int len = 0;while ((len = is.read(bytes)) != -1) {
os.write(bytes,0, len);
}if (os != null)
os.close();if (is != null)
is.close();
}
