java: javamail 1.6.2 Create Receive Email using jdk 19

 尝试获取编码(pop3message.getEncoding())，则会获得此contentType(UTF-8一个)

 

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/**      * 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.");         }            }   /**  * 接收邮件  * 中文是乱码 未解决  * @param pop3Host   pop.163.com  * @param storeType pop3 imap  * @param user  geovindu@163.com  * @param password   * @author geovindu  *  *  * **/ public static void receiveEmail(String pop3Host, String storeType, String user, String password) {            try {             //1) get the session object             Properties properties = new Properties();             properties.put("mail.pop3.host", pop3Host);             Session emailSession = Session.getDefaultInstance(properties);                            //2) create the POP3 store object and connect with the pop server             POP3Store emailStore = (POP3Store) emailSession.getStore(storeType);             emailStore.connect(user, password);                         //3) create the folder object and open it             Folder emailFolder = emailStore.getFolder("INBOX");             emailFolder.open(Folder.READ_ONLY);             //获取邮箱基本信息        //   Map<String, Integer> map = DuMailHelper.emailInfo(emailFolder);             //  System.out.println(map);            //4) retrieve the messages from the folder in an array and print it             Message[] messages = emailFolder.getMessages();            // parseMessage(messages);                         for (int i = 0; i < messages.length; i++) {              Message message = messages[i];              System.out.println("---------------------------------");              System.out.println("Email Number " + (i + 1));              System.out.println("Subject: " + message.getSubject());              System.out.println("From: " + message.getFrom()[0]);              System.out.println("Text: " + message.getContent().toString());             }                         //5) close the store and folder objects             emailFolder.close(false);             emailStore.close();                        } catch (NoSuchProviderException e) {e.printStackTrace();}             catch (MessagingException e) {e.printStackTrace();}            catch (IOException e) {e.printStackTrace();}      }

　　

 

https://javaee.github.io/javamail/FAQ#commonmistakes

https://www.geeksforgeeks.org/sending-email-java-ssltls-authentication/

https://stackoverflow.com/questions/13980922/java-mail-api-encoding-problems

https://www.go4expert.com/articles/send-receive-mails-java-javamail-t3649/

https://community.oracle.com/tech/developers/discussion/1590874/send-an-email-encoded-in-utf-8-with-javamail-character-problems

https://javaee.github.io/javamail/docs/api/

 

 

QQ邮箱的收取邮件支持POP/IMAP两种协议，发送邮件采用SMTP协议，收件和发件均使用SSL协议来进行加密传输，采用SSL协议需要单独对帐户进行设置。采用SSL协议和非SSL协议时端口号有所区别，参照下表的一些常见配置组合:

类型	服务器名称	服务器地址	非SSL协议端口号	SSL协议端口号
发件服务器	SMTP	smtp.qq.com	25	465/587
收件服务器	POP	pop.qq.com	110	995
收件服务器	IMAP	imap.qq.com	143	993

 

 

 

163邮箱的收取邮件支持POP/IMAP两种协议，发送邮件采用SMTP协议，收件和发件均使用SSL协议来进行加密传输，采用SSL协议需要单独对帐户进行设置。采用SSL协议和非SSL协议时端口号有所区别，参照下表的一些常见配置组合:

 

类型	服务器名称	服务器地址	SSL协议端口号	非SSL协议端口号
收件服务器	POP	pop.163.com	995	110
收件服务器	IMAP	imap.163.com	993	143
发件服务器	SMTP	smtp.163.com	465/994	25