如何使用动态凭据使用Spring4发送电子邮件

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>javax.mail-api</artifactId>
    <version>1.6.2</version>
</dependency>

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="smtp.exmail.qq.com"/>
    <property name="port" value="465"/>
    <property name="username" value="your-email@example.com"/>
    <property name="password" value="your-password"/>
    <property name="javaMailProperties">
        <props>
            <prop key="mail.smtp.auth">true</prop>
            <prop key="mail.smtp.starttls.enable">true</prop>
            <prop key="mail.smtp.starttls.required">true</prop>
            <prop key="mail.smtp.ssl.enable">true</prop>
        </props>
    </property>
</bean>

@Autowired
private JavaMailSender mailSender;

public void sendEmail(String to, String subject, String content) {
    SimpleMailMessage message = new SimpleMailMessage();
    message.setTo(to);
    message.setSubject(subject);
    message.setText(content);
    mailSender.send(message);
}

sendEmail("recipient@example.com", "Hello", "This is a test email.");