SpringBoot整合邮件服务

导入邮件Maven jar包

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

填写配置文件参数（注意：配置文件的参数需要该指定发送邮箱开通POP3/SMTP/IMAP服务）

spring:
  mail:
    host: smtp.163.com	#发送邮件服务器
    username: 18948726396@163.com	#QQ邮箱/其它邮箱
    password: 1qazxsw2	#客户端授权码
    protocol: smtp	#发送邮件协议
    properties:
      mail:
        display:
          sendmail: Javen	#可以任意
          sendname: Spring Boot Guide Email	#可以任意
        smtp:
          auth: true
          port: 994	#端口号465或587
          starttls:
            enable: true
            required: true
          ssl:
            enable: true
    default-encoding: utf-8
    from: 18948726396@163.com	#与上面的username保持一致
    
	#端口号
	#126邮箱SMTP服务器地址:smtp.126.com,端口号:465或者994
	#163邮箱SMTP服务器地址:smtp.163.com,端口号:465或者994
	#yeah邮箱SMTP服务器地址:smtp.yeah.net,端口号:465或者994
	#qq邮箱SMTP服务器地址:smtp.qq.com,端口号:465或587

编写工具类

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

@Component
public class MailUtil {

	 /**
     * 
     */
    @Autowired
    private JavaMailSender mailSender;

    private static final String SEND_MAIL = "填写发送者邮箱地址";

    /**
     * 发送简单邮件
     * @param to 发送给谁
     * @param subject 邮件主题
     * @param content 邮件内容
     */
    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        message.setFrom(SEND_MAIL);
        mailSender.send(message);
    }


    /**
     * 发送html邮件
     * @param to
     * @param subject
     * @param content
     */
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message,true);
            helper.setTo(to);
            helper.setFrom(SEND_MAIL);
            helper.setSubject(subject);
            helper.setText(content,true);
            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }

    }

    /**
     * 发送附件邮件
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
        MimeMessage message = mailSender.createMimeMessage();
        MimeMessageHelper helper = null;
        try {
            helper = new MimeMessageHelper(message,true);
            helper.setTo(to);
            helper.setFrom(SEND_MAIL);
            helper.setSubject(subject);
            helper.setText(content,true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = file.getFilename();
            //此处可以添加多个附件 zjy0910
            helper.addAttachment(fileName,file);

            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

    /**
     * 发送图片邮件
     * @param to
     * @param subject
     * @param content
     * @param rscPath 图片路径
     * @param rscId
     */
    public void sendInlinResourceMail(String to, String subject, String content,
                                      String rscPath, String rscId) {
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setTo(to);
            helper.setFrom(SEND_MAIL);
            helper.setSubject(subject);
            helper.setText(content,true);

            //可以添加多个图片
            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId,res);

            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

}

业务接口直接调取工具类即可