How send mail using spring

In Spring, you can send mail using the JavaMailSender interface, which is part of the Spring Framework. Here's a step-by-step guide on how to send mail using Spring:

Step 1: Add dependencies

In your pom.xml file (if you're using Maven) or your build.gradle file (if you're using Gradle), add the following dependencies:

<!-- Maven -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.2.5.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-mail</artifactId>
    <version>5.2.5.RELEASE</version>
</dependency>

<!-- Gradle -->
dependencies {
    implementation 'org.springframework:spring-context:5.2.5.RELEASE'
    implementation 'org.springframework:spring-mail:5.2.5.RELEASE'
}

Step 2: Configure JavaMailSender

Create a configuration class that extends JavaMailSenderConfigurer and configure the JavaMailSender instance:

@Configuration
public class MailConfig extends JavaMailSenderConfigurerAdapter {
    @Override
    public void configureJavaMailSender(JMailSenderBuilder builder) {
        builder
           .setHost("your-smtp-host")
           .setPort(587)
           .setUsername("your-smtp-username")
           .setPassword("your-smtp-password")
           .setProtocol("smtp");
    }
}

Step 3: Send mail

Create a service class that uses the JavaMailSender instance to send mail:

@Service
public class MailService {
    @Autowired
    private JavaMailSender javaMailSender;

    public void sendMail(String to, String subject, String body) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(body);
        javaMailSender.send(message);
    }
}

Step 4: Use the MailService

Inject the MailService instance into your controller or another service class and use it to send mail:

@RestController
public class MyController {
    @Autowired
    private MailService mailService;

    @PostMapping("/send-mail")
    public String sendMail(@RequestParam String to, @RequestParam String subject, @RequestParam String body) {
        mailService.sendMail(to, subject, body);
        return "Mail sent successfully!";
    }
}

That's it! You can now send mail using Spring by calling the sendMail method on the MailService instance.

Note: Make sure to replace the placeholders (your-smtp-host, your-smtp-username, your-smtp-password) with your actual SMTP server credentials.

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How send mail using spring