import <a href="http://lib.csdn.net/base/java" class=‘replace_word‘ title="Java 知识库" target=‘_blank‘ style=‘color:#df3434; font-weight:bold;‘>Java</a>.io.*;     import java.text.*;     import java.util.*;     import javax.mail.*;     import javax.mail.internet.*;         /**    * 有一封邮件就需要建立一个ReciveMail对象    */    public class ReciveOneMail {         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("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);                     } 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("storefile‘s 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<a href="http://www.mamicode.com/http://lib.csdn.net/base/softwaretest" class=‘replace_word‘ title="软件测试知识库" target=‘_blank‘ style=‘color:#df3434; font-weight:bold;‘>测试</a>        */        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("Messages‘s 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]);             }         }     }