JavaMail解析邮件内容详解编程语言

private MimeMessage mimeMessage = null; private String saveAttachPath = ""; //附件下载后的存放目录 private StringBuffer bodytext = new StringBuffer();//存放邮件内容 private String dateformat = "yy-MM-dd HH:mm"; //默认的日前显示格式 public ReciveOneMail(MimeMessage mimeMessage) { this.mimeMessage = mimeMessage; public void setMimeMessage(MimeMessage mimeMessage) { this.mimeMessage = mimeMessage; /** * 获得发件人的地址和姓名 public String getFrom() throws Exception { InternetAddress address[] = (InternetAddress[]) mimeMessage.getFrom(); String from = address[0].getAddress(); if (from == null) from = ""; String personal = address[0].getPersonal(); if (personal == null) personal = ""; String fromaddr = personal + " " + from + " return fromaddr; /** * 获得邮件的收件人，抄送，和密送的地址和姓名，根据所传递的参数的不同 "to"----收件人 "cc"---抄送人地址 "bcc"---密送人地址 public String getMailAddress(String type) throws Exception { String mailaddr = ""; String addtype = type.toUpperCase(); InternetAddress[] address = null; if (addtype.equals("TO") || addtype.equals("CC")|| addtype.equals("BCC")) { if (addtype.equals("TO")) { address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.TO); } else if (addtype.equals("CC")) { address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.CC); } else { address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.BCC); if (address != null) { for (int i = 0; i address.length; i++) { String email = address[i].getAddress(); if (email == null) email = ""; else { email = MimeUtility.decodeText(email); String personal = address[i].getPersonal(); if (personal == null) personal = ""; else { personal = MimeUtility.decodeText(personal); String compositeto = personal + " " + email + " mailaddr += "," + compositeto; mailaddr = mailaddr.substring(1); } else { throw new Exception("Error emailaddr type!"); return mailaddr; /** * 获得邮件主题 public String getSubject() throws MessagingException { String subject = ""; try { subject = MimeUtility.decodeText(mimeMessage.getSubject()); if (subject == null) subject = ""; } catch (Exception exce) {} return subject; /** * 获得邮件发送日期 public String getSentDate() throws Exception { Date sentdate = mimeMessage.getSentDate(); SimpleDateFormat format = new SimpleDateFormat(dateformat); return format.format(sentdate); /** * 获得邮件正文内容 public String getBodyText() { return bodytext.toString(); /** * 解析邮件，把得到的邮件内容保存到一个StringBuffer对象中，解析邮件 主要是根据MimeType类型的不同执行不同的操作，一步一步的解析 public void getMailContent(Part part) throws Exception { String contenttype = part.getContentType(); int nameindex = contenttype.indexOf("name"); boolean conname = false; if (nameindex != -1) conname = true; System.out.println("CONTENTTYPE: " + contenttype); if (part.isMimeType("text/plain") !conname) { bodytext.append((String) part.getContent()); } else if (part.isMimeType("text/html") !conname) { bodytext.append((String) part.getContent()); } else if (part.isMimeType("multipart/*")) { Multipart multipart = (Multipart) part.getContent(); int counts = multipart.getCount(); for (int i = 0; i counts; i++) { getMailContent(multipart.getBodyPart(i)); } else if (part.isMimeType("message/rfc822")) { getMailContent((Part) part.getContent()); } else {} /** * 判断此邮件是否需要回执，如果需要回执返回"true",否则返回"false" public boolean getReplySign() throws MessagingException { boolean replysign = false; String needreply[] = mimeMessage .getHeader("Disposition-Notification-To"); if (needreply != null) { replysign = true; return replysign; /** * 获得此邮件的Message-ID public String getMessageId() throws MessagingException { return mimeMessage.getMessageID(); /** * 【判断此邮件是否已读，如果未读返回返回false,反之返回true】 public boolean isNew() throws MessagingException { boolean isnew = false; Flags flags = ((Message) mimeMessage).getFlags(); Flags.Flag[] flag = flags.getSystemFlags(); System.out.println("flagss length: " + flag.length); for (int i = 0; i flag.length; i++) { if (flag[i] == Flags.Flag.SEEN) { isnew = true; System.out.println("seen Message......."); break; return isnew; /** * 判断此邮件是否包含附件 public boolean isContainAttach(Part part) throws Exception { boolean attachflag = false; String contentType = part.getContentType(); if (part.isMimeType("multipart/*")) { Multipart mp = (Multipart) part.getContent(); for (int i = 0; i mp.getCount(); i++) { BodyPart mpart = mp.getBodyPart(i); String disposition = mpart.getDisposition(); if ((disposition != null) ((disposition.equals(Part.ATTACHMENT)) || (disposition .equals(Part.INLINE)))) attachflag = true; else if (mpart.isMimeType("multipart/*")) { attachflag = isContainAttach((Part) mpart); } else { String contype = mpart.getContentType(); if (contype.toLowerCase().indexOf("application") != -1) attachflag = true; if (contype.toLowerCase().indexOf("name") != -1) attachflag = true; } else if (part.isMimeType("message/rfc822")) { attachflag = isContainAttach((Part) part.getContent()); return attachflag; /** * 【保存附件】 public void saveAttachMent(Part part) throws Exception { String fileName = ""; if (part.isMimeType("multipart/*")) { Multipart mp = (Multipart) part.getContent(); for (int i = 0; i mp.getCount(); i++) { BodyPart mpart = mp.getBodyPart(i); String disposition = mpart.getDisposition(); if ((disposition != null) ((disposition.equals(Part.ATTACHMENT)) || (disposition .equals(Part.INLINE)))) { fileName = mpart.getFileName(); if (fileName.toLowerCase().indexOf("gb2312") != -1) { fileName = MimeUtility.decodeText(fileName); saveFile(fileName, mpart.getInputStream()); } else if (mpart.isMimeType("multipart/*")) { saveAttachMent(mpart); } else { fileName = mpart.getFileName(); if ((fileName != null) (fileName.toLowerCase().indexOf("GB2312") != -1)) { fileName = MimeUtility.decodeText(fileName); saveFile(fileName, mpart.getInputStream()); } else if (part.isMimeType("message/rfc822")) { saveAttachMent((Part) part.getContent()); /** * 【设置附件存放路径】 public void setAttachPath(String attachpath) { this.saveAttachPath = attachpath; /** * 【设置日期显示格式】 public void setDateFormat(String format) throws Exception { this.dateformat = format; /** * 【获得附件存放路径】 public String getAttachPath() { return saveAttachPath; /** * 【真正的保存附件到指定目录里】 private void saveFile(String fileName, InputStream in) throws Exception { String osName = System.getProperty("os.name"); String storedir = getAttachPath(); String separator = ""; if (osName == null) osName = ""; if (osName.toLowerCase().indexOf("win") != -1) { separator = "//"; if (storedir == null || storedir.equals("")) storedir = "c://tmp"; } else { separator = "/"; storedir = "/tmp"; File storefile = new File(storedir + separator + fileName); System.out.println("storefiles path: " + storefile.toString()); // for(int i=0;storefile.exists();i++){ // storefile = new File(storedir+separator+fileName+i); // } BufferedOutputStream bos = null; BufferedInputStream bis = null; try { bos = new BufferedOutputStream(new FileOutputStream(storefile)); bis = new BufferedInputStream(in); int c; while ((c = bis.read()) != -1) { bos.write(c); bos.flush(); } catch (Exception exception) { exception.printStackTrace(); throw new Exception("文件保存失败!"); } finally { bos.close(); bis.close(); /** * PraseMimeMessage类测试 public static void main(String args[]) throws Exception { Properties props = System.getProperties(); props.put("mail.smtp.host", "smtp.163.com"); props.put("mail.smtp.auth", "true"); Session session = Session.getDefaultInstance(props, null); URLName urln = new URLName("pop3", "pop3.163.com", 110, null, "xiangzhengyan", "pass"); Store store = session.getStore(urln); store.connect(); Folder folder = store.getFolder("INBOX"); folder.open(Folder.READ_ONLY); Message message[] = folder.getMessages(); System.out.println("Messagess length: " + message.length); ReciveOneMail pmm = null; for (int i = 0; i message.length; i++) { System.out.println("======================"); pmm = new ReciveOneMail((MimeMessage) message[i]); System.out.println("Message " + i + " subject: " + pmm.getSubject()); System.out.println("Message " + i + " sentdate: "+ pmm.getSentDate()); System.out.println("Message " + i + " replysign: "+ pmm.getReplySign()); System.out.println("Message " + i + " hasRead: " + pmm.isNew()); System.out.println("Message " + i + " containAttachment: "+ pmm.isContainAttach((Part) message[i])); System.out.println("Message " + i + " form: " + pmm.getFrom()); System.out.println("Message " + i + " to: "+ pmm.getMailAddress("to")); System.out.println("Message " + i + " cc: "+ pmm.getMailAddress("cc")); System.out.println("Message " + i + " bcc: "+ pmm.getMailAddress("bcc")); pmm.setDateFormat("yy年MM月dd日 HH:mm"); System.out.println("Message " + i + " sentdate: "+ pmm.getSentDate()); System.out.println("Message " + i + " Message-ID: "+ pmm.getMessageId()); // 获得邮件内容=============== pmm.getMailContent((Part) message[i]); System.out.println("Message " + i + " bodycontent: /r/n" + pmm.getBodyText()); pmm.setAttachPath("c://"); pmm.saveAttachMent((Part) message[i]); }

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/10589.html

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