SpringBoot发送邮件

maven配置

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

application.yml配置

## QQ邮箱配置
spring:
  mail:
    host: smtp.qq.com #发送邮件服务器
    username: 1649346712@qq.com    #发送邮件的邮箱地址
    password:  *****#客户端授权码，不是邮箱密码，这个在qq邮箱设置里面自动生成的
    properties.mail.smtp.port: 465 #端口号465或587
    from: 1649346712@qq.com # 发送邮件的地址，和上面username一致
    #可以任意
    properties.mail.smtp.starttls.enable: true
    properties.mail.smtp.starttls.required: true
    properties.mail.smtp.ssl.enable: true
    default-encoding: utf-8

邮件配置工具类

package com.gecko.charging.util;

import com.meenoframework.util.MeenoAssert;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.scheduling.annotation.Async;
import org.springframework.stereotype.Component;

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

/**
 * @description: 邮件工具类
 * @author: Wzq
 * @create: 2020-03-03 17:04
 */
@Component
public class EmailUtils {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    /**
     * Spring Boot 提供了一个发送邮件的简单抽象，使用的是下面这个接口，这里直接注入即可使用
     */
    @Autowired
    private JavaMailSender mailSender;

    /**
     * 配置文件中我的qq邮箱
     */
    @Value("${spring.mail.from}")
    private String from;

    /**
     * 简单文本邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    @Async
    public void sendSimpleMail(String to, String subject, String content) {
        //创建SimpleMailMessage对象
        SimpleMailMessage message = new SimpleMailMessage();
        //邮件发送人
        message.setFrom(from);
        //邮件接收人
        message.setTo(to);
        //邮件主题
        message.setSubject(subject);
        //邮件内容
        message.setText(content);
        //发送邮件
        mailSender.send(message);
    }

    /**
     * html邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    @Async
    public void sendHtmlMail(String to, String subject, String content) {
        //获取MimeMessage对象
        MimeMessage message = mailSender.createMimeMessage();
        MimeMessageHelper messageHelper;
        try {
            messageHelper = new MimeMessageHelper(message, true);
            //邮件发送人
            messageHelper.setFrom(from);
            //邮件接收人
            messageHelper.setTo(subject);
            //邮件主题
            message.setSubject(subject);
            //邮件内容，html格式
            messageHelper.setText(content, true);
            //发送
            mailSender.send(message);
            //日志信息
            logger.info("邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送邮件时发生异常！", e);
            MeenoAssert.isTrue(false,"发送邮件时发生异常！");
        }
    }

    /**
     * 带附件的邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     * @param filePath 附件
     */
    @Async
    public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
        MimeMessage message = mailSender.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);
            mailSender.send(message);
            //日志信息
            logger.info("邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送邮件时发生异常！", e);
            MeenoAssert.isTrue(false,"发送邮件时发生异常！");
        }


    }

}

调用发送邮件

package com.gecko.charging.partner.controller.agent;

import com.gecko.charging.partner.entity.Partner;
import com.gecko.charging.partner.enums.PartnerType;
import com.gecko.charging.partner.model.PartnerModel;
import com.gecko.charging.partner.model.PartnerPageSearchCondModel;
import com.gecko.charging.partner.service.PartnerService;
import com.gecko.charging.partner.view.PartnerManagerView;
import com.gecko.charging.util.EmailUtils;
import com.meeno.boot.uim.common.ResultUtil;
import com.meenoframework.util.PageData;
import com.meenoframework.util.ResponseBean;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @description: 代理商Controller
 * @author: Wzq
 * @create: 2020-03-02 14:20
 */
@RestController
@RequestMapping("/partner/agentManager")
@Slf4j
public class AgentManagerController {


    @Autowired
    EmailUtils emailUtils;

    /**
     * 发送邮件
     * @return
     */
    @RequestMapping("sendEmail.action")
    public ResponseBean sendEmail(){
        String content = "\n" +
                "尊敬的李XX：\n" +
                "      您的代理商账号已开通，请妥善保留好自己的账号密码。登录***平台查看及管理。\n" +
                "      账号：AAAAAAAAAA\n" +
                "      密码：123456\n" +
                "      网址： www.baidu.com\n" ;
        emailUtils.sendSimpleMail("2428465028@qq.com", "【壁虎充电】账号开通成功提醒",content);
        return ResultUtil.success();
    }



}

成功！