邮箱发送验证码

pom.xml文件中引入依赖jar包

 <!-- Javamail -->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.4</version>
        </dependency>
        <!--引入redis依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

package com.creatunion.portal.common.utils;


import javax.mail.Address;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;

public class MailUtil {


    /**
     * 实现邮件发送的方法
     *
     * @param to      邮件的接受者
     * @param subject 主体
     * @param content 正文
     * @throws Exception
     */
    public static void sendMail(String to, String subject, String content) throws Exception {
        Properties props = new Properties();
        props.setProperty("mail.smtp.host", "smtp.163.com");  //设置主机地址   smtp.qq.com    smtp.sina.com

        props.setProperty("mail.smtp.auth", "true");//认证

        //阿里云服务器禁用25端口，所以服务器上改为465端口
        props.put("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.setProperty("mail.smtp.socketFactory.fallback", "false");
        props.setProperty("mail.smtp.socketFactory.port", "465");

        //2.产生一个用于邮件发送的Session对象
        Session session = Session.getInstance(props);

        //3.产生一个邮件的消息对象
        MimeMessage message = new MimeMessage(session);

        //4.设置消息的发送者
        Address fromAddr = new InternetAddress("15711200144@163.com");
        message.setFrom(fromAddr);

        //5.设置消息的接收者
        Address toAddr = new InternetAddress(to);
        //TO 直接发送  CC抄送    BCC密送
        message.setRecipient(MimeMessage.RecipientType.TO, toAddr);

        //6.设置主题
        message.setSubject(subject);
        //7.设置正文
        message.setText(content);
        //8.准备发送，得到火箭
        Transport transport = session.getTransport("smtp");
        //9.设置火箭的发射目标
        transport.connect("smtp.163.com", "15711200144@163.com", "CTNOCVIAYAYTXRWD");
        //10.发送
        transport.sendMessage(message, message.getAllRecipients());
        //11.关闭
        transport.close();
    }

    public static void main(String[] args) throws Exception {
        String code = Utils.getRandom(6);
        MailUtil.sendMail("499722834@qq.com", "测试发送邮件",
                "欢迎使用石家庄市正定新区社保中心网上服务平台，您的验证码是：" + code +
                        "，该验证码15" +
                        "分钟有效！");
        System.out.println("发送成功！！！");
    }

}

public class Utils {
    public static String getRandom(Integer length) {
        String num = "";
        for (int i = 0; i < length; i++) {
            num = num + String.valueOf((int) Math.floor(Math.random() * 9 + 1));
        }
        return num;
    }
}

public Result sendCodeToEmail(String email) {
        try {
            if (org.springframework.util.StringUtils.isEmpty(email)) {
                return new Result(false, ResultCode.ERROR_CODE.getCode(),
                        ResultCode.ERROR_CODE.getMessage());
            }
            if (!email.matches(REGEX_EMAIL)) {
                return new Result(false, ResultCode.ERROR_CODE.getCode(),
                        ResultCode.ERROR_CODE.getMessage());
            }
            //邮件主题
            String subject = "欢迎使用石家庄市正定新区社保中心网上服务平台";
            //验证码
            String code = Utils.getRandom(6);
            //邮件内容
            String text = "欢迎使用石家庄市正定新区社保中心网上服务平台，您的验证码为：" + code + "，该验证码15分钟内有效，请勿泄露给其他人！！";
            MailUtil.sendMail(email, subject, text);
            //将验证码以邮箱为key，验证码为value存入redis，15分钟有效
            stringRedisTemplate.opsForValue().set(email, code, 60 * 15, TimeUnit.SECONDS);
            return new Result(true, ResultCode.SUCCESS_CODE.getCode(), ResultCode.SUCCESS_CODE.getMessage());
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, ResultCode.ERROR_CODE.getCode(),
                    ResultCode.ERROR_CODE.getMessage());
        }
    }