• 【JavaMail-收取邮件】


    一、收取邮件

    package com.yht.email3;
    
    
    import com.yht.pdf.pdfAnalysis;
    import org.jsoup.Jsoup;
    import org.jsoup.nodes.Document;
    import org.jsoup.nodes.Element;
    import org.jsoup.select.Elements;
    
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeMessage;
    
    import java.io.*;
    import java.text.*;
    import java.util.*;
    import javax.mail.*;
    import javax.mail.internet.*;
    
    @SuppressWarnings("value={"unchecked", "rawtypes"}")
    public class PraseMimeMessage {
        private MimeMessage mimeMessage = null;
        private String saveAttachPath = "";// 附件下载后的存放目录
        private StringBuffer bodytext = new StringBuffer();
        // 存放邮件内容的StringBuffer对象
        private String dateformat = "yy-MM-dd HH:mm";// 默认的日前显示格式
    
        /**
         * 构造函数,初始化一个MimeMessage对象
         */
        public PraseMimeMessage() {
        }
    
        public PraseMimeMessage(MimeMessage mimeMessage) {
            this.mimeMessage = mimeMessage;
            System.out.println("创建一个PraseMimeMessage对象........");
        }
    
        public void setMimeMessage(MimeMessage mimeMessage) {
            System.out.println(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("错误的电子邮件地址类型!");
            }
            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 {
            System.out.println(mimeMessage.getMessageID().toString());
            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的长度: " + 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);
                        }
                        if (fileName.toLowerCase().indexOf("gbk") != -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("下载文件的地址: " + storefile.toString());
            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
         */
        static String pdf_Url;
    
        public static void main(String args[]) throws Exception {
            String host = "pop.qq.com"; // 【pop.mail.yahoo.com.cn】
            String username = "3887537@qq.com";
            String password = "skvtezboajgfgfgfgfghjhjgfdcvncpvbide";
            Properties p = new Properties();
            p.setProperty("mail.pop3.host", "pop.qq.com"); // 按需要更改
            p.setProperty("mail.pop3.port", "995");
            // SSL安全连接参数
            p.setProperty("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
            p.setProperty("mail.pop3.socketFactory.fallback", "true");
            p.setProperty("mail.pop3.socketFactory.port", "995");
    
            Session session = Session.getDefaultInstance(p, null);
            Store store = session.getStore("pop3");
            store.connect(host, username, password);
            Folder folder = store.getFolder("INBOX");
            folder.open(Folder.READ_ONLY);
            Message message[] = folder.getMessages();
            System.out.println("Messages's length: " + message.length);
            PraseMimeMessage pmm = null;
    
            for (int i = 0; i < message.length; i++) {
                pmm = new PraseMimeMessage((MimeMessage) message[i]);
                System.out.println("Message " + i + " 主题: " + pmm.getSubject());
                System.out.println("Message " + i + " 是否有附件: " + pmm.isContainAttach((Part) message[i]));
                System.out.println("Message " + i + " 发件人: " + pmm.getFrom());
                System.out.println("Message " + i + " 收件人: " + pmm.getMailAddress("to"));
                pmm.setDateFormat("yy年MM月dd日 HH:mm");
                pmm.getMailContent((Part) message[i]);
                // System.out.println("Message " + i + " 内容: 
    " + pmm.getBodyText());
                String email_Body = pmm.getBodyText();
    
    
                if (pmm.getSubject().contains("20KG")) {
                    //下载附件
                    File file = new File("C:\tmp\");
                    if (!file.exists()) {
                        file.mkdirs();
                    }
                    pmm.setAttachPath(file.toString());
                    pmm.saveAttachMent((Part) message[i]);
    
                }
    
    
    
    
                String aa = pmm.getSubject();
                        
                if (aa.contains("Tigerair")) {   //如果是这是名字叫"Tigerair",就进行获取URL
                    Document doc =Jsoup.parse(email_Body);
                    Elements es = doc.select("table[class=em_main_table]").select("table[style=border-collapse: collapse;]").select("table[align=center]").select("a");
                    System.out.println("我是URL"+es.attr("href"));//
                }
        }
     
           
    
    
    }
    
    
    }
    
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  • 原文地址:https://www.cnblogs.com/iitxt/p/8985417.html
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