Spring Boot -创建名为'jmsConnectionFactory‘的bean时出错

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-activemq</artifactId>
</dependency>

spring.activemq.broker-url=your-activemq-broker-url
spring.activemq.user=your-activemq-username
spring.activemq.password=your-activemq-password

@Configuration
public class JmsConfig {

    @Value("${spring.activemq.broker-url}")
    private String brokerUrl;

    @Value("${spring.activemq.user}")
    private String username;

    @Value("${spring.activemq.password}")
    private String password;

    @Bean
    public ConnectionFactory jmsConnectionFactory() {
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
        connectionFactory.setBrokerURL(brokerUrl);
        connectionFactory.setUserName(username);
        connectionFactory.setPassword(password);
        return connectionFactory;
    }
}