JAVA发送邮件学习笔记_java代码使用阿里邮箱发送邮件

maven pom引入依赖

<dependency>
	<groupId>com.sun.mail</groupId>
	<artifactId>javax.mail</artifactId>
	<version>1.6.0</version>
</dependency>
<dependency>
	<groupId>com.sun.mail</groupId>
	<artifactId>mailapi</artifactId>
	<version>1.6.0</version>
</dependency>
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设置邮箱

邮箱发送者需要开启POP3/SMTP服务，各大公司的邮箱网上都有开启的方法，我这里使用的是SSL加密，使用的的阿里邮箱的服务器

java代码示例

public static void main(String[] args) {
	  // 接收人的邮箱
	  String mail = "123456@qq.com";
	  // 发送邮件的标题
	  String subject = "邮箱标题";
	  // 发送的邮件内容
	  String text= "这是邮件内容";
	  // 邮件服务器，这里我是用的是阿里邮箱
	  String smtpHost = "smtp.aliyun.com";
	  // 服务器端口号
	  int smtpHost = 465;
       // 发件人的邮箱
       String userName = "填发件人的邮箱";
       // 发件人的邮箱密码
       String password = "发件人的邮箱密码";
       sendText(mail, subject, text, smtpHost, smtpPort, userName, password);
}

private static void sendText(String mail, String subject, String text, String smtpHost, int smtpPort, String userName, String password) {
        try {
            Properties properties = new Properties();
            // SSL
            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
            final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
            properties.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
            properties.setProperty("mail.smtp.socketFactory.fallback", "false");
            properties.put("mail.smtp.auth", "true");
            properties.setProperty("mail.smtp.socketFactory.port", String.valueOf(smtpPort));
            properties.setProperty("mail.smtp.host", smtpHost);
            properties.put("mail.smtp.port", String.valueOf(smtpPort));

            Session session = Session.getInstance(properties, new Authenticator() {
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(userName, password);
                }
            });
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(userName));
            message.addRecipients(Message.RecipientType.TO, mail);

            message.setSubject(subject);
            message.setText(text);
            Transport.send(message);
        } catch (Exception e) {
            // 可根据具体业务抛出对应的异常
        }
    }
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