java 邮件发送的几种方式_java 发送邮件

1、使用JavaMail发送邮件

1.1 添加依赖

<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4.3</version>
</dependency>

1.2 简单邮件发送

@Test()
    public void testSend() throws Exception {
        // 连接邮件服务器的参数配置
        Properties props = new Properties();
        // 设置用户的认证方式
        props.setProperty("mail.smtp.auth", "true");
        props.put("mail.smtp.host", host);
        props.put("mail.smtp.port", port);
        // 创建定义整个应用程序所需的环境信息的 Session 对象
        Session session = Session.getInstance(props,new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(name, pwd);
            }
        });
        // 创建消息对象
        MimeMessage message = new MimeMessage(session);
        // 邮件消息头
        message.setFrom(new InternetAddress(name)); // 发件人
        message.setRecipient(Message.RecipientType.TO, new InternetAddress(to)); // 收件人
        message.setSubject("邮件测试1");
        message.setText("Hello, java mail!");
        // 发送邮件
        Transport.send(message);
    }

2、使用Spring的JavaMailSenderImpl发送邮件

2.1 添加依赖

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <version>4.3.14.RELEASE</version>
</dependency>
 
<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4.3</version>
</dependency>

2.2 简单邮件发送

@Test
    public void testSend2() throws MessagingException {
        JavaMailSenderImpl sendService = new JavaMailSenderImpl();
        sendService.setHost(host);
        sendService.setPort(port);
        sendService.setUsername(name);
        sendService.setPassword(pwd);
        MimeMessage msg = sendService.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(msg, true, "UTF-8");
        helper.setTo(to);
        helper.setFrom(name);
        helper.setSubject("邮件测试2");
        helper.setText("Hello, spring!", true);
        sendService.send(msg);
    }

3、使用Apache commons-email发送邮件

3.1 添加依赖

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-email</artifactId>
    <version>1.4</version>
</dependency>
 
<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4.3</version>
</dependency>

3.2 简单邮件发送

@Test
    public void testSend3() throws EmailException {
        Email email = new SimpleEmail();
        email.setHostName(host);
        email.setSmtpPort(port);
        email.setAuthenticator(new DefaultAuthenticator(name, pwd));
        email.setCharset("UTF-8");
        email.setFrom(name);
        email.addTo(to);
        email.setSubject("测试邮件3");
        email.setMsg("Hello, commons-email!");
        email.send();
    }