springboot整合javaMail_springboot javamail

SMTP:简单邮件传输协议，用于发送电子邮件的协议
POP3 ( Post Office Protocol - Version3) :用于接收电子邮件的标准协议
IMAP ( Internet Mail Access Protocol) :互联网消息协议，是POP3的替代协议

第一步，引入依赖

   <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
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第二步 写接口与实现类

public interface MailService {
    void sendSimpleMail(String from,String to,String cc,String subject,String content);
}
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import com.example.rabbitmq.service.MailService;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service
public class tomailimpl  implements MailService {

        @Resource
        JavaMailSender javaMailSender;

        /**
         * 最简单的邮件发送
         * @param from  发送方
         * @param to    接收方
         * @param cc    第三方(非必填)
         * @param subject   标题
         * @param content   内容
         */
        @Override
        public void sendSimpleMail(String from, String to, String cc, String subject, String content){
            SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
            simpleMailMessage.setFrom(from);
            simpleMailMessage.setTo(to);
            simpleMailMessage.setCc(cc);
            simpleMailMessage.setSubject(subject);
            simpleMailMessage.setText(content);
            javaMailSender.send(simpleMailMessage);
        }
}
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第三步 配置文件

spring:
  mail:
    host: smtp.qq.com
    port: 465
    username: 发送方@qq.com
    password: QQ邮箱秘钥 不是QQ密码 
    default-encoding: UTF-8
    properties:
      mail:
        smtp:
          socketFactory:
            class: javax.net.ssl.SSLSocketFactory
        debug: true
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测试

import com.example.rabbitmq.service.MailService;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

import javax.annotation.Resource;

@SpringBootTest
class RabbitmqApplicationTests {

    @Resource
    MailService mailService;
    @Test
    public void sendSimpleMail(){
        mailService.sendSimpleMail("自己@qq.com","发送方@qq.com","发送方@qq.com","标题111","Hello World");
    }
}
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