org.springframework.boot
                  
      
       spring-boot-starter-mail
              
     

service

package com.ykmimi.job.service;import org.springframework.stereotype.Service;import java.util.Map;@Servicepublic interface MailService {    /**     * TODO 发送带附件的邮件 , 需要进行重载方法     */    Map
     
       sendAttachmentsMail(String to, String subject, String content, String filePath);}
     

service实现

package com.ykmimi.job.service.impl;import com.ykmimi.job.service.MailService;import org.springframework.beans.factory.annotation.Value;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.mail.javamail.MimeMessageHelper;import org.springframework.stereotype.Service;import org.springframework.util.ResourceUtils;import javax.annotation.Resource;import javax.mail.MessagingException;import javax.mail.internet.MimeMessage;import java.io.File;import java.io.FileNotFoundException;import java.util.HashMap;import java.util.Map;@Servicepublic class MailServiceImpl implements MailService {    @Resource    private JavaMailSender mailSender;    //发送者    @Value("${mail.fromMail.addr}")    private String from;    //TODO 设置发送邮件重载方式    @Override    public Map
     
       sendAttachmentsMail(String to, String subject, String content, String filePath) {        System.out.println("in sendAttachmentsMail");        System.out.println(filePath);        MimeMessage message = mailSender.createMimeMessage();        Map
      
        map = new HashMap<>();        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));            // 发送附件            File file = new File(filePath);            file = ResourceUtils.getFile(file.getAbsolutePath());            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));//            String fileName = filePath.substring(filePath.lastIndexOf("/"));//            String fileName = "附件";            System.out.println(fileName);            //添加多个附件可以使用多条 helper.addAttachment(fileName,file);            //helper.addAttachment(fileName,file);            helper.addAttachment(fileName, file);            mailSender.send(message);            map.put("code", 1);            map.put("message", "发送成功");            return map;        } catch (MessagingException e) {            e.printStackTrace();            map.put("code",0);            map.put("message","发送失败");            return map;        } catch (FileNotFoundException e) {            e.printStackTrace();            map.put("code",-1);            map.put("message","没有文件");            return map;        } finally {        }    }}
      
     

或将邮件内容及邮件地址等封装为EmailContent的bean实体

通过Controll而接受. 

下面是我的邮件主机配置,大家可以拿去用 

##上传文件限制大小spring.servlet.multipart.max-file-size=10MBspring.servlet.multipart.max-request-size=10MB##发送email设置spring.application.name=spring-boot-mailspring.mail.host=smtp.126.comspring.mail.username=hostinbj@126.comspring.mail.password=1314520jyspring.mail.default-encoding=UTF-8##邮件主机地址mail.fromMail.addr=hostinbj@126.comspring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory#邮件端口spring.mail.properties.mail.smtp.socketFactory.port=465spring.mail.properties.mail.smtp.auth=truespring.mail.properties.mail.smtp.starttls.enable=truespring.mail.properties.mail.smtp.starttls.required=true