SpringBoot实现163邮箱发送邮件

一.准备工作

创建一个springboot项目，依赖选中web就行，然后添加如下依赖

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-mail</artifactId>

</dependency>

二.再resources目录下新建一个mail.properties

#服务器 （若想使用QQ邮箱，请参考第六步）
mailHost=smtp.163.com
#端口号
mailPort=25
#邮箱账号(改成自己的,此为发送邮件方的账号，注意得是163账号)
mailUsername=xxxxx@163.com
#邮箱密码(改成自己的)我用的163.这里填163邮箱开启pop3/SMTP授权码
mailPassword=xxxxxxx
#时间延迟
mailTimeout=25000

三.创建类

package demo1.controller;



import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;


import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

@PropertySource(value="classpath:mail.properties")
@Configuration
public class MailConfig {
    public static final String PROPERTIES_DEFAULT = "mail.properties";
    public static String host;
    public static Integer port;
    public static String userName;
    public static String passWord;
    public static String emailForm;
    public static String timeout;
    public static String personal;
    public static Properties properties;

    static {
        init();
    }

    private static void init(){
        properties = new Properties();
        try {
            //获取配置文件内容
            InputStream inputStream = MailConfig.class.getClassLoader().getResourceAsStream(PROPERTIES_DEFAULT);
            properties.load(inputStream);
            inputStream.close();
            //给属性赋值
            host = properties.getProperty("mailHost");
            port = Integer.parseInt(properties.getProperty("mailPort"));
            userName = properties.getProperty("mailUsername");
            passWord = properties.getProperty("mailPassword");
            emailForm = properties.getProperty("mailUsername");
            timeout = properties.getProperty("mailTimeout");
            //发送人
            personal = "汤姆猫";
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

package demo1.controller;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.util.Properties;

public class MailUtil {
    private static final String HOST = MailConfig.host;
    private static final Integer PORT = MailConfig.port;
    private static final String USERNAME = MailConfig.userName;
    private static final String PASSWORD = MailConfig.passWord;
    private static final String EMAILFROM = MailConfig.emailForm;
    private static final String TIMEOUT = MailConfig.timeout;
    private static final String PERSONAL = MailConfig.personal;
    private static JavaMailSenderImpl mailSender = createMailsender();

    /**
     * 配置好的工具
     * @return
     */
    private static JavaMailSenderImpl createMailsender(){
        JavaMailSenderImpl sender = new JavaMailSenderImpl();
        sender.setHost(HOST);
        sender.setPort(PORT);
        sender.setUsername(USERNAME);
        sender.setPassword(PASSWORD);
        sender.setDefaultEncoding("UTF-8");
        Properties p = new Properties();
        p.setProperty("mail.smtp.timeout", TIMEOUT);
        p.setProperty("mail.smtp.auth", "false");
        sender.setJavaMailProperties(p);
        return sender;
    }

    /**
     * 发送邮件
     * @param to 接收人
     * @param subject 主题
     * @param html 发送内容
     * @throws MessagingException
     * @throws UnsupportedEncodingException
     */
    public static void sendMail(String to, String subject, String html)
            throws MessagingException,UnsupportedEncodingException {

        MimeMessage mimeMessage = mailSender.createMimeMessage();
        //设置编码
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
        mimeMessageHelper.setFrom(EMAILFROM,PERSONAL);
        mimeMessageHelper.setTo(to);
        mimeMessageHelper.setSubject(subject);
        mimeMessageHelper.setText(html,true);
        mailSender.send(mimeMessage);

    }

}

四.测试类

package demo1.controller;

import javax.mail.MessagingException;
import java.io.UnsupportedEncodingException;
import java.util.Random;

public class Client {
    public static void main(String[] args) {
        try {
            //6位随机数
            Random random = new Random();
            String code = "";
            for (int i = 0; i < 6; i++) {

                code += random.nextInt(10);

            }

            //这里的邮箱是接受者的邮箱，和配置的邮箱不一样,测试是标题，code是内容
            MailUtil.sendMail("1746255930@qq.com","测试",code);
        } catch (MessagingException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }

}

五.结果