Java ????? ?? ???? ??? ?? ???? ?? ???????. ????? ???? ?????? Java ?? ??? ????? ? ?? ?? ??? JavamailAPI? JAF ????????. ?? Java?? ???? ???? ? ?? ?? ?????. ? ??? Java ?? ???????? ??? ?? ????? ? ???? ????. Java ?? API? JAF? ?? Java ?? ?????? ????? ? ????. ???? ??? ??? smtp ??? ??? ? ????. ? SMTP ?? ??? ??? ??? ?? ?????. Podcast ??, Apache James ??? ?? SMTP ??? ???? ???? ?? ??? ?????.
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Java ??? ?? ??
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1) ?? ??? ?????.
2) ???? ???? ?????.
3) ???? ????.
??? ? ??? ??? ???????. ?? ?? ??? ? ?? ??? ?? ?? ??? ???? ??? ?????. ??? ?? ???? ??? ??? ?? ? ????. ??? ??? ??? ??? ??? ???? ?????. ??? ???? ??? ????? javax. mail.Session ???? ???? ???. ? ????? ?? ???? ?? ??? ???? ?? ? ?? ??? ????. ??? ?? ???? ?? ??? ???? ? ???? ? ?? ?? ???? Session???. getdefaultinstance() ??? ? Session. getinstance() ???. ?? ??? ??? ?? ??? ???? ? ?? ?? ?????. ??? ?? ?? ?? ??? ????? ?? ?? ? ??? ??? ? ????.
s.no | Method details | Description |
1 | public static Session getDefaultInstance(Properties p) | default session value will be returned |
2 | public static Session getDefaultInstance(Properties p,Authenticator a) | default session value will be returned |
3 | public static Session getInstance(Properties prop) | Value associated to the new session will be returned |
4 | public static Session getInstance(Properties prop,Authenticator a) | Value associated to the new session will be returned |
??? ??: ?? ? ???? ???? ? ?? ??? ?????. ? ???? ???? ?? ??? ???? ????? ????? ?????. ??? ? ??? ?? ???? ??? ??? ???? ? ?? ??? ?????. ??? ????? ????? javax.mail.message? ?????. ? ???? ???? ???? ???? ??? ? ????. ? ???? ?? ?? ??? ???? javax.mail.internet.MimeMessage?? ?? ???? ? ????? ? ????? ?????. ??? ??? ???? ?? ?? ????? ???? ????. ??? ? ??? ???? ?? ?? ??? ???? ? ?????. MimeMessage message=new MimeMessage(session);
??? ???: ? ??? ??? ????? ???? ??? ????. ????. ??. ?? ???? ??? ???? ?????. ? ???? ??? ??? ?? ????? ????? ????. ??? ????? ??? ???? ??? ????? javax? ?? ?? ????? ??? ? ????. mail.transport ???? ??????. ?? ???? ?? Transport? ?? ?????. ???(???); ? ??? ?? ?????.
No. | Method | Description |
1 | public static void send(Message m) | The given method is used for sending the message. So transport of the message can be achieved by means of this method. |
2 | public static void send(Message m, Address[] address) | For sending the message to one specific address this method is used. |
Javax ?? ???? ??
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import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; public class Initiateemail { public static void main(String [] args) { // email id of the recipient has to be mentioned in this field String to = "[email?protected]"; // email id of the sender needs to be mentioned here String from = "[email?protected]"; // Assuming you are sending email from localhost String host = "localhost"; // All details associated to the property are mentioned here Properties prop = System.getProperties(); // this is the step were the property setup can be eastablished prop.setProperty("mail.smtp.host", host); Session ses = Session.getDefaultInstance(prop); try { // onject associated to the message is initiated here MimeMessage mess = new MimeMessage(ses); // header details are decided and set here. mes.setFrom(new InternetAddress(from)); // header field details are created here mes.addRecipient(Mes.RecipientType.TO, new InternetAddress(to)); // subject details of the message are given here mes.setSubject("Hello world message . . . . . . . . . . . subject starts "); // Actual message of the email is given here message.setText("Hello world . . . . . . . . . . . . . . . Message Ends"); // transport object is used for initiating the message Transport.send(mes); System.out.println("message has been sent successfully . . . . . "); } catch (MessagingException mex) { mex.printStackTrace(); } } }
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JavaMail ?? ??? ???? ???
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import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; public class SendEmail { public static void main(String [] args) { String to = "[email?protected]"; String from = "[email?protected]"; String host = "localhost"; Properties prop = System.getProperties(); prop.setProperty("mail.smtp.host", host); Session ses = Session.getDefaultInstance(prop); try { MimeMessage mess = new MimeMessage(ses); mes.setFrom(new InternetAddress(from)); mes.addRecipient(Mes.RecipientType.TO, new InternetAddress(to)); mes.setSubject("Hello world message . . . . . . . . . . . subject starts "); message.setText("Hello world . . . . . . . . . . . . . . . Message Ends"); mp.addBodyPart(mbp); mbp = new MimeBodyPart(); String fl = "newfile.txt"; DataSource src= new FileDataSource(fl); mbp.setDataHandler(new DataHandler(src)); mbp.setFileName(filename); mp.addBodyPart(mbp); messetContent(mp ); Transport.send(mes); System.out.println("message has been sent successfully . . . . . "); } catch (MessagingException mex) { mex.printStackTrace(); } } }
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Java??? ?? ??? ????? ? ?? ?? ???? ????. ??, ?? ??? ??? ??? ?? ? ? ???, ?? ?? ?? ??? ?? ?? ?? ???? ??? ?????. Runnable? run () ????? ?? ?? ??? ??? ?? ?? ? ????? ??? ?????. ??, Callable? ?? ??? ?????? ?? ?? ? ??? ?? ? ????. ?? ????? ????? ??? ???????. ??, Runnable? ??? ?? ExecutorService? ?? ?? ? ? ??? Callable? ExecutorService?? ??? ? ??? ?? ??? ?? ? ? ????.

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Java? ????? ????? ??? ??? ?? ???? ?? ?? ??????, ?? ? ???? ? ??? ????. ?? ???? ??? ??? ???? ??? ??? ???? ?? ??? ??? ????. ???? ???? ??? ??, ?? ??? ???? ???? ?? ??? ?? ???? ?? ?????. ???? ?? ?? ??? ?? ?? ??? ?????. ?????? ?? ??? ??? ???? ?? ??? ??? ?? ??? ???? ???? ??? ?? ??? ?????? ???? ????? ??? ?? ?? ???, ?? ? ?? ???? ??? ??? ?????. ???? urlclassl? ?? ??? ??? ??? ?? ? ? ????

Java ?? ??? ??? ?? ? ??? ???? ?? ??? ???? Try-Catch? ???? ????? ????? ???? ????. 1. IoException? ?? ?? ? ??? ???? ?? ??? ??? ?? ???????. 2. NullPointerException? ?? ???? ?? ??? ????? ???? ?? ??? ?? ???? ??? ?????. 3. ??? ?? ? ?? ??? ???? ??? ??? ?? ????? ???????. 4. CODE? ?? ??? ??? ?? ??? ???? ??? ???? ??? ???? ?? ?? ????. 5. ?? ???? ??? ??? ?? ??? ??? ?? ???? ??? ???????.

Java? ??? ?? ??, ?? ? ??? (? : Projectreactor) ? Java19? ?? ???? ??? ??? ?????? ?????. 1. CompletableFuture? ?? ??? ?? ?? ??? ? ?? ??? ????? ?? ??????? ? ?? ??? ?????. 2. Projectreactor? ?? ? ??? ??? ???? ?? ???? ? ??? ???? ?? ? ?????? ?????. 3. ?? ???? ??? ??? ??? I/O ??? ? ??? ???? ?? ??? ????? ??? ???? ????. ? ???? ?? ??? ????? ??? ??? ??? ?? ??? ??? ?????? ???? ???? ?? ?? ??? ??????.

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