SpringBoot学习－（二十三）SpringBoot发送邮件

曾经终败给现在 2022-05-28 02:56 128阅读 0赞

**基本步骤：**

*  添加pom文件依赖
 *  配置邮件相关
 *  书写代码
 *  测试

## 添加pom文件依赖 ##

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>

## 配置邮件相关 ##

**配置application.yml相关**

spring:
      mail:
        host: smtp.aliyun.com
        username: xxxxxx@aliyun.com
        password: xxxxxx
        properties:
          mail:
            smtp:
              auth: true
              starttls:
                enable: false
                required: false

## 书写代码 ##

**实体类**

package com.ahut.email;
    
    import java.io.Serializable;
    import java.util.HashMap;
    
    public class Email implements Serializable { 
        /** * 序列化 */
        private static final long serialVersionUID = 1L;
        // 必填参数
        private String email;// 接收方邮件
        private String subject;// 主题
        private String content;// 邮件内容
        // 选填
        private String template;// 模板
        private HashMap<String, String> kvMap;// 自定义参数
    
        public String getEmail() {
            return email;
        }
    
        public void setEmail(String email) {
            this.email = email;
        }
    
        public String getSubject() {
            return subject;
        }
    
        public void setSubject(String subject) {
            this.subject = subject;
        }
    
        public String getContent() {
            return content;
        }
    
        public void setContent(String content) {
            this.content = content;
        }
    
        public String getTemplate() {
            return template;
        }
    
        public void setTemplate(String template) {
            this.template = template;
        }
    
        public HashMap<String, String> getKvMap() {
            return kvMap;
        }
    
        public void setKvMap(HashMap<String, String> kvMap) {
            this.kvMap = kvMap;
        }
    
    }

**工具类**

package com.ahut.email;
    
    import java.util.concurrent.Executors;
    import java.util.concurrent.ScheduledExecutorService;
    import java.util.concurrent.atomic.AtomicInteger;
    
    import javax.mail.internet.MimeMessage;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSender;
    
    public class MailUtil { 
        private Logger logger = LoggerFactory.getLogger(MailUtil.class);
    
        private ScheduledExecutorService service = Executors.newScheduledThreadPool(6);
    
        private final AtomicInteger count = new AtomicInteger(1);
    
        public void start(final JavaMailSender mailSender, final SimpleMailMessage message) {
            service.execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        if (count.get() == 2) {
                            service.shutdown();
                            logger.info("the task is down");
                        }
                        logger.info("start send email and the index is " + count);
                        mailSender.send(message);
                        logger.info("send email success");
                    } catch (Exception e) {
                        logger.error("send email fail", e);
                    }
    
                }
            });
        }
    
        public void startHtml(final JavaMailSender mailSender, final MimeMessage message) {
            service.execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        if (count.get() == 2) {
                            service.shutdown();
                            logger.info("the task is down");
                        }
                        logger.info("start send email and the index is " + count);
                        mailSender.send(message);
                        logger.info("send email success");
                    } catch (Exception e) {
                        logger.error("send email fail", e);
                    }
    
                }
            });
        }
    
    }

**发送类**

package com.ahut.email;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSender;
    import org.springframework.stereotype.Service;
    
    import com.ahut.action.LoginAction;
    
    /** * * @ClassName: MailService * @Description: 发送邮件 * @author cheng * @date 2018年3月28日 上午11:40:54 */
    @Service
    public class MailService { 
    
        private Logger log = LoggerFactory.getLogger(LoginAction.class);
    
        @Autowired
        private JavaMailSender mailSender;// 执行者
    
        @Value("${spring.mail.username}")
        public String USER_NAME;// 发送者
    
        public void send(Email mail) throws Exception {
            log.info("发送邮件");
            MailUtil mailUtil = new MailUtil();
            SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom(USER_NAME);
            message.setTo(mail.getEmail());
            message.setSubject(mail.getSubject());
            message.setText(mail.getContent());
            mailUtil.start(mailSender, message);
        }
    
    }

## 测试 ##

package mail;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringRunner;
    
    import com.ahut.AhutApplication;
    import com.ahut.email.Email;
    import com.ahut.email.MailService;
    
    @SpringBootTest(classes = AhutApplication.class)
    @RunWith(SpringRunner.class)
    public class MailTest {
    
        @Autowired
        private MailService mailService;
    
        @Test
        public void testSend() throws Exception {
            Email mail = new Email();
            mail.setEmail("xxxxx@163.com");
            mail.setSubject("注册验证");
            mail.setContent("多发一封应该没事");
            mailService.send(mail);
        }
    
    }

详细请参考这位博主的文章：[SpringBoot开发案例之整合mail发送服务][SpringBoot_mail]

[SpringBoot_mail]: https://yq.aliyun.com/articles/136451