Spring mail 邮件发送

1.pom引入依赖包

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

2.配置文件配置

#发件人邮箱服务器相关配置
spring.mail.host=smtp.qq.com
spring.mail.port=587
#配置个人QQ账号和密码（密码是加密后的授权码）
spring.mail.username=995536807@qq.com
spring.mail.password=输入你自己的授权码，不会的在下面获取。
spring.mail.default-encoding=UTF-8
#邮件服务超时时间配置
spring.mail.properties.mail.smtp.connectiontimeout=5000
spring.mail.properties.mail.smtp.timeout=3000
spring.mail.properties.mail.smtp.writetimeout=5000

3.写好邮件发送业务

package com.example.chapter09.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.stereotype.Service;

@Service
public class SendEmailService {
    @Autowired
    private JavaMailSenderImpl mailSender;

    @Value("${spring.mail.username}") //从配置文件中读取属性值赋给from
    private String from;

    public void sendSimpleEmail(String to, String subject, String text) {
        //定制纯文本邮件信息SimpleMailMessage
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);       //发件人地址
        message.setTo(to);           //收件人地址
        message.setSubject(subject); //邮件标题
        message.setText(text);       //邮件内容
        try {
            //发送邮件
            mailSender.send(message);
            System.out.println("纯文本邮件发送成功");
        } catch (MailException e) {
            System.out.println("纯文本邮件发送失败" + e.getMessage());
            e.printStackTrace();
        }
    }
}

补充：获取QQ授权码。