java: imap Receive Email

 

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/**  * 版权所有 2022 涂聚文有限公司  * 许可信息查看：  * 描述：  *  * 数据库：Ms SQL server 2019  * IDE: Eclipse IDE for Enterprise Java and Web Developers - 2021-09  * OS: Windows 10 x64  * IDE: Eclipse IDE for Enterprise Java and Web Developers - 2021-09  * 历史版本： JDK 19  * 2022-1-12 创建者 geovindu  * 2022-1-15 添加 Lambda  * 2022-1-15 修改：date  * 接口类 mssql-jdbc-9.4.1.jre16.jar.  * 数据库：MSSQL Server 2019  * 2022-1-25 修改者：Geovin Du  * 生成API帮助文档的指令：  *javadoc - -encoding Utf-8 -d apidoc DuMailPopHelper.java  *  *  *https://github.com/eclipse-ee4j/mail  *https://eclipse-ee4j.github.io/mail/docs/api/index.html  *https://mvnrepository.com/artifact/com.sun.mail/jakarta.mail/2.0.1  Jakarta Mail  *https://javaee.github.io/javamail/#Samples  *https://github.com/javaee/javamail/releases/tag/JAVAMAIL-1_6_2  *https://mvnrepository.com/artifact/javax.activation/activation/1.1.1  *https://www.thymeleaf.org/download.html https://github.com/thymeleaf https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf  *https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf https://mvnrepository.com/artifact/org.springframework/spring-core http://www.java2s.com/Code/Jar/s/Downloadspringframework515jar.htm https://github.com/apache/tomcat/blob/main/java/org/apache/tomcat/Jar.java https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-util  *https://tomcat.apache.org/download-10.cgi  *  *  * **/       import javax.mail.*; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; import javax.mail.internet.MimeUtility; import com.sun.mail.pop3.*;   import java.io.*; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.Map; import java.util.*;   import javax.mail.Flags.Flag; import javax.mail.Folder; import javax.mail.Message; import javax.mail.Session; import javax.mail.Store; import  com.sun.mail.imap.*; //.IMAPFolder import com.sun.mail.imap.IMAPMessage;   import com.sun.mail.imap.IMAPFolder; import com.sun.mail.imap.protocol.IMAPProtocol; import org.apache.tomcat.util.http.fileupload.IOUtils; //import org.apache.tomcat.util.*; import org.springframework.util.ObjectUtils;     /**  * 接收邮件  * @author geovindu  * @version 1.0  *  *  * ***/   /**          *          *          *          * **/         public static  void DuReceiveEmailImap(String pop3Host,String port,String storeType, String user, String password)throws MessagingException, IOException         {                             // 准备连接服务器的会话信息             Properties props = new Properties();             props.put("mail.store.protocol", storeType); //imap             props.put("mail.pop3.starttls.enable", "false");             props.put("mail.imap.host",pop3Host );//"imap.163.com"             props.put("mail.imap.port", port); //"143"  imap.163.com                       // 创建Session实例对象             //Session session = Session.getInstance(props);             Session session =Session.getDefaultInstance(props,null);//             // 创建IMAP协议的Store对象             Store store = session.getStore("imap");                           // 连接邮件服务器             store.connect(pop3Host,user, password); //"geovindu@163.com"                                         Folder folder = store.getFolder("Inbox");            // folder.open(Folder.READ_ONLY);             //Message messages[] = folder.getMessages();            // FlagTerm ft = new FlagTerm(new Flags(Flags.Flag.SEEN), false);            // Message messages[] = folder.search(ft);                           if (folder instanceof IMAPFolder) {                             IMAPFolder imapFolder = (IMAPFolder)folder;                             //javamail中使用id命令有校验checkOpened, 所以要去掉id方法中的checkOpened();                             imapFolder.doCommand(new IMAPFolder.ProtocolCommand()                             {                                 public Object doCommand(IMAPProtocol p) throws com.sun.mail.iap.ProtocolException {                                      p.id("FUTONG");                                      return null;                                  }                              });             }             // 获得收件箱             //Folder folder = store.getFolder("whatever");//INBOX              //Folder folder = store.getFolder("whatever");             // IMAPFolder ifolder = (IMAPFolder)folder;            //  List<MailEvent> events = ifolder.open(Folder.READ_WRITE,                        // new ResyncData(prevUidValidity, prevModSeq));             // 以读写模式打开收件箱             //folder.open(Folder.READ_ONLY);              //ifolder.open(ifolder.READ_WRITE);                                                                                      if(folder != null) {                  folder.open(Folder.READ_WRITE);              }             // 获得收件箱的邮件列表             //Message[] messages = folder.getMessages();             Message[] messages =getWEMessage(pop3Host,user,password,storeType);// folder.getMessages();             // 打印不同状态的邮件数量                           String str = new String(("收件箱中共" + Integer.toString(messages.length) + "封邮件!").getBytes(),"utf-8");             System.out.println("收件箱中共" + Integer.toString(messages.length) + "封邮件!");             String str1="收件箱中共" +  Integer.toString(folder.getUnreadMessageCount()) + "封未读邮件!";             System.out.println(str1);             System.out.println("收件箱中共" +  Integer.toString(folder.getNewMessageCount()) + "封新邮件!");             System.out.println("收件箱中共" +  Integer.toString(folder.getDeletedMessageCount()) + "封已删除邮件!");                           System.out.println("------------------------开始解析邮件----------------------------------");             DuMailHelper helper=new DuMailHelper();                                         // 解析邮件             for (Message message : messages) {                 IMAPMessage msg = (IMAPMessage) message;                 String subject = MimeUtility.decodeText(msg.getSubject());                 System.out.println("[" + subject + "]未读，是否需要阅读此邮件（yes/no）？");                 BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));                 String answer = reader.readLine();                 if ("yes".equalsIgnoreCase(answer)) {                     parseImapMessage(msg);  // 解析邮件                     // 第二个参数如果设置为true，则将修改反馈给服务器。false则不反馈给服务器                     msg.setFlag(Flag.SEEN, true);   //设置已读标志                 }             }                           // 关闭资源             folder.close(false);             store.close();                                     }         /**          * 获取163邮箱信息          *          * @param host          * @param username          * @param password          * @param protocol          * @return          * @throws MessagingException          */         public static Message[] getWEMessage(String host, String username, String password, String protocol) throws MessagingException {             Properties props = System.getProperties();             props.setProperty("mail.store.protocol", protocol);             Session session = Session.getDefaultInstance(props, null);             Store store = session.getStore(protocol);             store.connect(host, username, password);             Folder folder = store.getFolder("INBOX");               if (folder instanceof IMAPFolder) {                 IMAPFolder imapFolder = (IMAPFolder)folder;                 //javamail中使用id命令有校验checkOpened, 所以要去掉id方法中的checkOpened();                 imapFolder.doCommand(new IMAPFolder.ProtocolCommand() {                     public Object doCommand(IMAPProtocol p) throws com.sun.mail.iap.ProtocolException {                         p.id("FUTONG");                         return null;                     }                 });             }               if(folder != null) {                 folder.open(Folder.READ_WRITE);             }               return folder.getMessages();         }            /**          *          *          *          * **/         public static  void  parseImapMessage(IMAPMessage... messages) throws MessagingException, IOException {             //判断邮件是否为空             if (messages == null || messages.length < 1) {                 throw new MessagingException("未找到要解析的邮件!");             }               // 解析所有邮件             for (int i = 0, count = messages.length; i < count; i++) {                 MimeMessage msg = (MimeMessage) messages[i];                 System.out.println("-----------解析第" + msg.getMessageNumber() + "封邮件---------------");                 System.out.println("主题: " + DuMailHelper.getSubject(msg));                 System.out.println("发件人: " + DuMailHelper.getFrom(msg));                 System.out.println("收件人：" + DuMailHelper.getReceiveAddress(msg, Message.RecipientType.TO));                 System.out.println("发送时间：" + DuMailHelper.getSentDate(msg, null));                 System.out.println("是否已读：" + DuMailHelper.isSeen(msg));                 System.out.println("邮件优先级：" + DuMailHelper.getPriority(msg));                 System.out.println("是否需要回执：" + DuMailHelper.isReplySign(msg));                 System.out.println("邮件大小：" + msg.getSize() * 1024 + "kb");                 boolean isContainerAttachment = DuMailHelper.isContainAttachment(msg);                 System.out.println("是否包含附件：" + isContainerAttachment);                 if (isContainerAttachment) {                     //获取文件的存储目录                     String path = JavaxJavaMailClient.class.getClassLoader().getResource("").getPath();                     //获取文件的前缀                     String strFile = UUID.randomUUID().toString().replace("-", "").substring(0, 8);                     DuMailHelper.saveAttachment(msg, path + strFile + "_"); //保存附件                 }                 //用来存储正文的对象                 StringBuffer content = new StringBuffer();                 //处理邮件正文                 DuMailHelper.getMailTextContent(msg, content);                 System.out.println("邮件正文：" + content);                 System.out.println("-----------第" + msg.getMessageNumber() + "封邮件解析结束------------");                 System.out.println();             }         }                    /**          * 接收邮件          * 中文是乱码 未解决          * @param pop3Host   pop.163.com          * @param storeType pop3          * @param user  geovindu@163.com          * @param password  geovindu          * @author geovindu          * @serialData@          *          *          * **/         public static void DuReceiveEmail(String pop3Host,String storeType, String user, String password){             Properties props = new Properties();             props.put("mail.pop3.host", pop3Host);             props.put("mail.pop3.port", "110");             props.put("mail.pop3.starttls.enable", "false");             props.put("mail.store.protocol", "pop3");                    Session session = Session.getInstance(props);           try {              Store mailStore = session.getStore(storeType);             mailStore.connect(pop3Host, user, password);                        Folder folder = mailStore.getFolder("INBOX");             folder.open(Folder.READ_ONLY);                        Message[] emailMessages = folder.getMessages();             System.out.println("Total Message - "                     + emailMessages.length);                       //Iterate the messages           for (int i = 0; i < emailMessages.length; i++) {            Message message = emailMessages[i];            Address[] toAddress =            message.getRecipients(Message.RecipientType.TO);            System.out.println();             System.out.println("Email " + (i+1) + "-");             System.out.println("Subject - " + message.getSubject());             System.out.println("From - " + message.getFrom()[0]);                       System.out.println("To - ");            for(int j = 0; j < toAddress.length; j++){                System.out.println(toAddress[j].toString());            }            System.out.println("Text - " +                    message.getContent().toString());            }                       folder.close(false);            mailStore.close();         } catch (Exception e) {             e.printStackTrace();             System.err.println("Error in receiving email.");             }                }