//创建属性对象Properties p = new Properties();p.put("mail.imap.auth.login.disable", "true");//身份验证p.put("mail.imap.host", "imap.qq.com");//主机p.put("mail.store.protocol", "imap");//协议p.put("mail.imap.port", "993");//端口//qq邮箱需要ssl加密p.put("mail.smtp.socketFactory.port","993");p.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");//创建会话对象Session session = Session.getInstance(p);//存储对象Store store = session.getStore("imap");//链接store.connect("2960036795@qq.com", "lylglvicofzodghf");//创建目录对象Folder folder = store.getFolder("Inbox");//打开模式：只读
        folder.open(Folder.READ_ONLY);//获取消息，数组Message[] ms = folder.getMessages();//预提取对象FetchProfile fp = new FetchProfile();//属性
        fp.add(FetchProfile.Item.ENVELOPE); //内容
        fp.add(FetchProfile.Item.CONTENT_INFO);//标志属性
        fp.add(FetchProfile.Item.FLAGS);//x-mailer属性fp.add("x-mailer");//提取
        folder.fetch(ms, fp);//遍历for(Message m : ms) {String title = m.getSubject(); //获取邮件的标题int size = m.getSize(); //获取邮件的大小String date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(m.getSentDate());//获取邮件的接受时间
            System.out.println("标题:"+title);System.out.println("大小:"+size);System.out.println("接受时间:"+date);Object obj = m.getContent();//获取邮件内容//内容类型判断//村文本内容if(m.isMimeType("text/plain") || m.isMimeType("text/html")) {System.out.println("内容:"+obj);}//多个组件内容if(m.isMimeType("multipart/*")) {//强制转为多个组件类型Multipart part = (Multipart) obj;//遍历每个组件for(int i=0;i<part.getCount();i++) {//每个组件内容BodyPart body = part.getBodyPart(i);//判断组件内容的类型//纯文字if(body.isMimeType("text/plain") || body.isMimeType("text/html")) {System.out.println("内容:"+body.getContent());}//附件if(body.isMimeType("application/octet-stream")) {String fileName = body.getFileName(); //获取附件的文件名fileName = MimeUtility.decodeText(fileName);//解码//存取当前附件//使用输入输出流存储InputStream is = body.getInputStream();OutputStream os = new FileOutputStream("F:\\yujun\\linshi\\"+fileName);byte[] b = new byte[1024];int len = 0;while((len=is.read(b)) != -1) {os.write(b, 0, len);}is.close();os.close();}}}}