[SpringBoot] - 发送带附件的邮件

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

service

package com.ykmimi.job.service;

import org.springframework.stereotype.Service;

import java.util.Map;

@Service
public interface MailService {

    /**
     * TODO 发送带附件的邮件 , 需要进行重载方法
     */
    Map<String, Object> 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;

@Service
public 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<String, Object> sendAttachmentsMail(String to, String subject, String content, String filePath) {

        System.out.println("in sendAttachmentsMail");
        System.out.println(filePath);
        MimeMessage message = mailSender.createMimeMessage();
        Map<String, Object> 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=10MB
spring.servlet.multipart.max-request-size=10MB
##发送email设置
spring.application.name=spring-boot-mail
spring.mail.host=smtp.126.com
spring.mail.username=hostinbj@126.com
spring.mail.password=1314520jy
spring.mail.default-encoding=UTF-8
##邮件主机地址
mail.fromMail.addr=hostinbj@126.com

spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
#邮件端口
spring.mail.properties.mail.smtp.socketFactory.port=465

spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true