springboot发送邮件（1）：发送简单邮件

电玩女神 2022-05-25 01:39 328阅读 0赞

### springboot实现邮件发送功能： ###

### 1.整体目录结构： ###

![70][]

### 2.新建一个springboot项目：在pom.xml添加依赖： ###

<parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.0.1.RELEASE</version>
    </parent>
    
    <properties>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <java.version>1.8</java.version>
    </properties>
    
    <dependencies>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
      </dependency>
    
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
      </dependency>
    
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
      </dependency>
    
    </dependencies>

### 3.在resources文件目录下写application.properties配置文件如下： ###

spring.application.name=spirng-boot-mail
    
    spring.mail.host=smtp.qq.com
    spring.mail.username=xxx@qq.com
    spring.mail.password=授权码
    spring.mail.default-encoding=UTF-8
    
    mail.fromMail.addr=xxx@qq.com //表明发送者（可以不写，个人喜好）
    
    //如果不加下面3句,会报530错误
    spring.mail.properties.mail.smtp.auth=true
    spring.mail.properties.mail.smtp.starttls.enable=true
    spring.mail.properties.mail.smtp.starttls.required=true

记得在qq邮箱，设置-》账户-》**POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务**开启pop3/smtp服务，获得授权码。

![70 1][]

### 4.编写发送邮件服务接口，实现发送邮件功能： ###

/**
     * 邮件服务接口
     * Created by ASUS on 2018/5/5
     *
     * @Authod Grey Wolf
     */
    public interface MailService {
    
        /**
         * 发送简单邮件
         * @param to
         * @param subject
         * @param content
         */
        void sendMail(String to,String subject,String content);
    }

/**
     *
     * 邮件服务类
     * Created by ASUS on 2018/5/5
     *
     * @Authod Grey Wolf
     */
    
    @Service("mailService")
    public class MailServiceImpl implements MailService {
    
        @Autowired
        private JavaMailSender mailSender;
        
    //读取application.properties的内容
      @Value("${mail.fromMail.addr}")
        private String form;
        /**
         * 发送简单邮件
         * @param to 接受者
         * @param subject 主题
         * @param content 内容
         */
        @Override
        public void sendMail(String to, String subject, String content) {
            SimpleMailMessage mailMessage=new SimpleMailMessage();
            mailMessage.setFrom(form);//发起者
            mailMessage.setTo(to);//接受者
    
        //如果发给多个人的：
        //mailMessage.setTo("1xx.com","2xx.com","3xx.com");     
            mailMessage.setSubject(subject);
            mailMessage.setText(content);
            try {
                mailSender.send(mailMessage);
                System.out.println("发送简单邮件");
            }catch (Exception e){
                System.out.println("发送简单邮件失败");
            }
        }
    }

### 5.编写邮件测试类： ###

/**
     * 发送邮件测试类
     * Created by ASUS on 2018/5/5
     *
     * @Authod Grey Wolf
     */
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class MailTest {
    
        @Autowired
        private MailService mailService;
    
        @Value("${mail.fromMail.addr}")
        private String form;
    
        @Test
        public  void sendSimpleMail() throws Exception{
            mailService.sendMail(form,"简单邮件","springboot实现邮件发送");
        }
    }

### 6.记得在根目录下编写个springboot的启动类，如果没写的，会报错哦。 ###

/**
     * 启动类
     */
    @SpringBootApplication
    public class Application {
    
       public static void main(String[] args) {
          SpringApplication.run(Application.class, args);
       }
    
    }

### 7.run测试类MailTest:,查看结果： ###

![70 2][]

我的座右铭：不会，我可以学；落后，我可以追赶；跌倒，我可以站起来；我一定行。

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