解决：A component required a bean of type ‘javax.jms.Queue‘ that could not be found.

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1. 情景描述：只是想简单写个 ActiveMQ 的小样，启动服务却报错：

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-08-01 16:10:39.858 ERROR 4928 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : ***************************
APPLICATION FAILED TO START
***************************Description:A component required a bean of type 'javax.jms.Queue' that could not be found.Action:Consider defining a bean of type 'javax.jms.Queue' in your configuration.

2. 原因和解决：

如提示信息中说的一样，Queue 类没有纳入spring 的管理。加上注解： @Bean 就行了。

错误写法：

/*** @author silence* @date 2018/8/1 10:42*/
@Component
public class MessageQueue{public Queue queue(){return new ActiveMQQueue("my-message");}}

正确写法：

package gentle.activemq;import org.apache.activemq.command.ActiveMQQueue;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import javax.jms.Queue;/*** @author silence* @date 2018/8/1 10:42*/
@Component
public class MessageQueue{@Bean //返回一个名为 my-message 的队列,并且注册为 beanpublic Queue queue(){return new ActiveMQQueue("my-message");}}

3. 成功启动服务：

解决：A component required a bean of type ‘javax.jms.Queue‘ that could not be found.相关推荐

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解决：A component required a bean of type ‘javax.jms.Queue‘ that could not be found.

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