javax.mail使用

工具类

import java.util.Properties;

import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

public class MailUtils {
    private static String smtp_host = "smtp.163.com"; // 网易
    private static String username = "邮箱号码"; // 邮箱账户
    private static String password = "邮箱授权码"; // 邮箱授权码

    private static String from = "邮箱号码"; // 使用当前账户
    public static String activeUrl = "激活路径";

    public static void sendMail(String subject, String content, String to) {
        Properties props = new Properties();
        props.setProperty("mail.smtp.host", smtp_host);
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.smtp.auth", "true");
        Session session = Session.getInstance(props);
        Message message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress(from));
            message.setRecipient(RecipientType.TO, new InternetAddress(to));
            message.setSubject(subject);
            message.setContent(content, "text/html;charset=utf-8");
            Transport transport = session.getTransport();
            transport.connect(smtp_host, username, password);
            transport.sendMessage(message, message.getAllRecipients());
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("邮件发送失败...");
        }
    }
}
//测试类
// 生成激活码
public static void main(String[]args){
            // 发送一封激活邮件
        // 生成激活码
        String activecode = RandomStringUtils.randomNumeric(32);

        // 将激活码保存到redis，设置24小时失效
        redisTemplate.opsForValue().set(model.getTelephone(), activecode, 24,
                TimeUnit.HOURS);

        // 调用MailUtils发送激活邮件
        String content = "尊敬的客户您好，请于24小时内，进行邮箱账户的绑定，点击下面地址完成绑定:<br/><a href='"
                + MailUtils.activeUrl + "?telephone=" + model.getTelephone()
                + "&activecode=" + activecode + "'>绑定地址</a>";
        MailUtils.sendMail("激活邮件", content, model.getEmail());
}

//pom文件导入坐标
<!-- 邮件发送工具 -->
        <dependency>
            <groupId>javamail</groupId>
            <artifactId>mail</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.xbean</groupId>
            <artifactId>xbean-spring</artifactId>
            <version>3.7</version>
        </dependency>

导入maven坐标

        <!-- 邮件发送工具 -->
        <dependency>
            <groupId>javamail</groupId>
            <artifactId>mail</artifactId>
            <version>1.3.2</version>
        </dependency>

方法调用

MailUtils.sendMail("标题", "正文", "接收邮箱号");