环境

产品中经常用到密码修改、验证等发送邮箱
pom.xml

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

配置文件

#mail
spring.mail.host=smtp.163.com
[email protected]
spring.mail.password=znvr123
spring.mail.default-encoding=UTF-8
[email protected]

代码

package com.mhm.mail;

/**
 * Created by Ma*g on 2018/11/5.
 */
public interface MailService {
    /**
     * 送文本文件
     * @param to
     * @param subject
     * @param content
     */
    void sendSimpleMail(String to, String subject, String content);

    /**
     * 发送网页邮件
     * @param to
     * @param subject
     * @param content
     */
    void sendHtmlMail(String to, String subject, String content);

    /**
     * 发送带附件邮件
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    void sendAttachmentsMail(String to, String subject, String content, String filePath);

    /**
     * 发送正文中有静态资源（图片）的邮件
     * @param to
     * @param subject
     * @param content
     * @param rscPath
     * @param rscId
     */
    void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId);
}

实现类

package com.mhm.mail;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
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;

/**
 * Created by MHm on 2018/11/5.
 */
@Component
@Slf4j
public class MailServiceImpl implements MailService{
    @Autowired
    private JavaMailSender javaMailSender;
    @Value("${mail.fromMail.addr}")
    private String from;

    /**
     * 发送文本文件
     * @param to
     * @param subject
     * @param content
     */
    @Override
    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);

        try {
            javaMailSender.send(message);
        } catch (Exception e) {
            log.error("send simple Mail error:{}",e);
        }
    }

    /**
     * 发送网页邮件
     * @param to
     * @param subject
     * @param content
     */
    @Override
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = javaMailSender.createMimeMessage();
        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            javaMailSender.send(message);
        } catch (MessagingException e) {
            log.error("send html Mail error:{}",e);
        }
    }

    /**
     * 发送带附件邮件
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    @Override
    public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
        MimeMessage message = javaMailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);

            javaMailSender.send(message);
        } catch (MessagingException e) {
            log.error("send Attachments Mail error:{}",e);
        }
    }

    /**
     * 发送正文中有静态资源（图片）的邮件
     * @param to
     * @param subject
     * @param content
     * @param rscPath
     * @param rscId
     */
    @Override
    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId) {
        MimeMessage message = javaMailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);

            javaMailSender.send(message);
        } catch (MessagingException e) {
            log.error("send resources Mail error:{}",e);
        }
    }
}

发送邮件controller

package com.mhm.controller;

import com.mhm.mail.MailService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * 测试发送邮件
 * Created by MHM on 2018/11/5.
 */
@RestController
public class MailController {

    @Resource
    private MailService mailService;
    @RequestMapping(value = "/sendMail")
    public String sendMail(@RequestParam(value = "mailAddress", required = true) String mailAddress,@RequestParam(value = "title", required = true) String title,
    @RequestParam(value = "content", required = true) String content){
        mailService.sendSimpleMail(mailAddress,title,content);
        return "success";
    }
}

验证

Github

Github