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Bael 7807 (#16400) 

* BAEL-7490 read write file in separate thread

* Change the to try resources

* Update the code to sync with article

* Skeleton

* Update validation

* update send mail

* reformat and structure
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Wynn Teo 2024-04-19 09:22:33 +08:00 committed by GitHub
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commit 9c4a0b79d5
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6
libraries-io/pom.xml
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@ -48,6 +48,11 @@
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.simplejavamail</groupId>
<artifactId>simple-java-mail</artifactId>
<version>${simplejavamail.version}</version>
</dependency>
</dependencies>
<build>
@ -71,6 +76,7 @@
<zip4j.version>2.11.5</zip4j.version>
<opencsv.version>5.9</opencsv.version>
<spring.version>6.1.4</spring.version>
<simplejavamail.version>8.7.0</simplejavamail.version>
</properties>
</project>

136
libraries-io/src/main/java/com/baeldung/java/io/simplemail/SimpleMailExample.java Normal file
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@ -0,0 +1,136 @@
package com.baeldung.java.io.simplemail;
import java.util.ArrayList;
import java.util.List;
import org.simplejavamail.api.email.AttachmentResource;
import org.simplejavamail.api.email.Email;
import org.simplejavamail.api.email.Recipient;
import org.simplejavamail.api.mailer.Mailer;
import org.simplejavamail.email.EmailBuilder;
import org.simplejavamail.mailer.MailerBuilder;
import org.simplejavamail.MailException;
import jakarta.activation.FileDataSource;
import jakarta.mail.Message;
public class SimpleMailExample {
public static void sendPlainTextEmail() {
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with Plain Text!")
.withPlainText("This is a test email sent using SJM.")
.buildEmail();
sendEmail(email);
}
public static void sendPlainTextEmailToMultipleRecipient() {
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient1@example.com, recipient2@example.com, recipient3@example.com")
.withSubject("Email with Plain Text!")
.withPlainText("This is a test email sent using SJM to multiple recipients.")
.buildEmail();
sendEmail(email);
}
public static void sendEmailWithAttachment() {
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with Plain Text and Attachment!")
.withPlainText("This is a test email with attachment sent using SJM.")
.withAttachment("important_document.pdf", new FileDataSource("path/to/important_document.pdf"))
.buildEmail();
sendEmail(email);
}
public static void sendEmailWithMultipleAttachment() {
List<AttachmentResource> arList = new ArrayList<>();
arList.add(new AttachmentResource("important_document.pdf", new FileDataSource("path/to/important_document.pdf")));
arList.add(new AttachmentResource("company_logo.png", new FileDataSource("path/to/company_logo.png")));
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with Plain Text and multiple Attachments!")
.withPlainText("This is a test email with attachment sent using SJM.")
.withAttachments(arList)
.buildEmail();
sendEmail(email);
}
public static void sendHTMLTextWithEmbeddedImageEmail() {
String htmlContent = "<h1>This is an email with HTML content</h1>" + "<p>This email body contains additional information and formatting.</p>" +
"<img src=\"cid:company_logo\" alt=\"Company Logo\">";
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with HTML and Embedded Image!")
.withHTMLText(htmlContent)
.withEmbeddedImage("company_logo", new FileDataSource("path/to/company_logo.png"))
.buildEmail();
sendEmail(email);
}
public static void replyingToEmail(Email receivedEmail) {
EmailBuilder.replyingTo(receivedEmail)
.from("sender@example.com")
.prependText("This is a Reply Email. Original email included below:")
.buildEmail();
}
public static void forwardingEmail(Email receivedEmail) {
Email email = EmailBuilder.forwarding(receivedEmail)
.from("sender@example.com")
.prependText("This is an Forward Email. See below email:")
.buildEmail();
}
public static void handleExceptionWhenSendingEmail() {
try {
sendPlainTextEmail();
System.out.println("Email sent successfully!");
} catch (MailException e) {
System.err.println("Error: " + e.getMessage());
}
}
public static void setCustomHeaderWhenSendingEmail() {
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with Custom Header")
.withPlainText("This is an important message.")
.withHeader("X-Priority", "1")
.buildEmail();
sendEmail(email);
}
private static void sendEmailWithDeliveryReadRecipient() {
Email email = EmailBuilder.startingBlank()
.from("sender@example.com")
.to("recipient@example.com")
.withSubject("Email with Delivery/Read Receipt Configured!")
.withPlainText("This is an email sending with delivery/read receipt.")
.withDispositionNotificationTo(new Recipient("name", "address@domain.com", Message.RecipientType.TO))
.withReturnReceiptTo(new Recipient("name", "address@domain.com", Message.RecipientType.TO))
.buildEmail();
sendEmail(email);
}
private static void sendEmail(Email email) {
Mailer mailer = MailerBuilder.withSMTPServer("smtp.example.com", 25, "username", "password")
.withMaximumEmailSize(1024 * 1024 * 5) // 5 Megabytes
.buildMailer();
boolean validate = mailer.validate(email);
if (validate) {
mailer.sendMail(email);
} else {
System.out.println("Invalid email address.");
}
}
}