android邮件收发系统

import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Properties; import javax.mail.BodyPart; import javax.mail.Flags; import javax.mail.Folder; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; import javax.mail.Part; import javax.mail.Session; import javax.mail.Store; import javax.mail.URLName; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeUtility; /** * 有一封邮件就需要建立一个ReciveMail对象 */ public class ReciveMail { private MimeMessage mimeMessage = null; private String saveAttachPath = ""; //附件下载后的存放目录 private StringBuffer bodytext = new StringBuffer();//存放邮件文本内容 private StringBuffer bodyhtml = 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 ReciveMail(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(); } /** * 获得邮件正文Html内容 */ public String getBodyHtml() { return bodyhtml.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) {//是纯文本 bodytext.append((String) part.getContent()); } else if (part.isMimeType("text/html") && !conname) { //是网页 bodyhtml.append((String) part.getContent()); } else if (part.isMimeType("multipart/*")) { //文本和附件 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")) {//是附件 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("flags's 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);