实用篇:spring boot+jdk1.8+mail 发送邮件

项目中,经常会有发送邮件的业务需求,本篇就以smtp为例,说明下使用中需要注意的问题.

1.首先,项目中引入依赖,编辑pom.xml:

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
        <relativePath/>
    </parent>
<java.version>1.8</java.version>

        <!--发送邮件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>

2.然后,修改application.properties配置,这里注意区分开发,生产等环境

#邮件发送配置

spring.mail.host=smtp.qq.com
spring.mail.username=账号
spring.mail.password=授权码
spring.mail.protocol=smtp
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.port=465
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.properties.mail.smtp.ssl.enable=true
spring.mail.default-encoding=UTF-8
spring.mail.from=账号

这里需要注意几个细节问题:
1)授权码,需要自行获取和设置
2).端口号,这里开启了ssl
3).空格和拼写错误问题,检查确认账号配置

3.编写邮件发送代码,示例如下:

@Component
public class EmailServiceImpl implements EmailService {
    @Value("${spring.mail.from}")
    private String email = "";
    @Autowired
    private JavaMailSender mailSender;

    @Override
    public SimpleMailMessage sendSimpleMessage(String to, String subject, String text) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(email);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(text);
        mailSender.send(message);
        return message;
    }
}