SpringBoot中activeMq的用法实例介绍

本篇内容主要讲解“SpringBoot中activeMq的用法实例介绍”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“SpringBoot中activeMq的用法实例介绍”吧!

SpringBoot 中使用activeMq的步骤：

1、pom中引入jar包：

  <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-web</artifactId>   </dependency>   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-activemq</artifactId>   </dependency>   <dependency>   <groupId>org.apache.activemq</groupId>   <artifactId>activemq-pool</artifactId>   <!-- <version>5.7.0</version> -->   </dependency>

2、spring boot配置文件中配置activeMq

spring.activemq.broker-url=tcp://localhost:61616 spring.activemq.user=admin spring.activemq.password=admin spring.activemq.in-memory=true spring.activemq.pool.enabled=false

3、Application 中添加对应的bean生成规则

package com.telligen.ascertain;  import org.apache.activemq.ActiveMQConnectionFactory; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.jms.core.JmsMessagingTemplate; import org.springframework.jms.core.JmsTemplate;  import javax.jms.ConnectionFactory;   @SpringBootApplication public class ApproveApplication {  	public static void main(String[] args) {	SpringApplication.run(ApproveApplication.class, args);	}  	@Bean	public ConnectionFactory connectionFactory(){	System.out.println("aaaaaaaaaaaaaaaaaaaaaa");	ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();	connectionFactory.setBrokerURL("tcp://localhost:61616");	connectionFactory.setUserName("admin");	connectionFactory.setPassword("admin");	return connectionFactory;	}	@Bean	public JmsTemplate genJmsTemplate(){	System.out.println("aaaaaaaaaaaaaaaaaaaaaabbbbbbbbb");	return new JmsTemplate(connectionFactory());	}	@Bean	public JmsMessagingTemplate jmsMessageTemplate(){	System.out.println("ccccccccccccc");	return new JmsMessagingTemplate(connectionFactory());	}   }

4、发送消息

package com.telligen.ascertain.approve.common.util.network; import org.apache.log4j.Logger; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.jms.core.JmsMessagingTemplate; import org.springframework.stereotype.Component;   @Component @Scope("singleton") public class ActiveMqUtil   {     private Logger logger = Logger.getLogger(ActiveMqUtil.class);       @Autowired     private JmsMessagingTemplate jmsMessagingTemplate;       public void sendMsg(String destinationName ,String message){         logger.info("发送 消息到消息队列");         jmsMessagingTemplate.convertAndSend(destinationName,message);     } }

遇到的问题：

jmsMessagingTemplate 注入不成功，spring初始化错误，异常如下，只要按照步骤三就可以了：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [org/springframework/boot/autoconfigure/jms/JmsAutoConfiguration$JmsTemplateConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.jms.core.JmsTemplate]: Factory method 'jmsTemplate' threw exception; nested exception is java.lang.NoSuchMethodError: org.springframework.jms.core.JmsTemplate.setDeliveryDelay(J)V	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1256)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1105)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503)	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)	at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$112/1129944640.getObject(Unknown Source)	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395)	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:139)	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117)	... 29 more Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.jms.core.JmsTemplate]: Factory method 'jmsTemplate' threw exception; nested exception is java.lang.NoSuchMethodError: org.springframework.jms.core.JmsTemplate.setDeliveryDelay(J)V	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582)	... 47 more Caused by: java.lang.NoSuchMethodError: org.springframework.jms.core.JmsTemplate.setDeliveryDelay(J)V	at java.lang.invoke.MethodHandleNatives.resolve(Native Method)	at java.lang.invoke.MemberName$Factory.resolve(MemberName.java:965)	at java.lang.invoke.MemberName$Factory.resolveOrFail(MemberName.java:990)	at java.lang.invoke.MethodHandles$Lookup.resolveOrFail(MethodHandles.java:1385)	at java.lang.invoke.MethodHandles$Lookup.linkMethodHandleConstant(MethodHandles.java:1726)	at java.lang.invoke.MethodHandleNatives.linkMethodHandleConstant(MethodHandleNatives.java:442)	at org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration$JmsTemplateConfiguration.mapTemplateProperties(JmsAutoConfiguration.java:91)	at org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration$JmsTemplateConfiguration.jmsTemplate(JmsAutoConfiguration.java:83)	at org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration$JmsTemplateConfiguration$$EnhancerBySpringCGLIB$$654aefcc.CGLIB$jmsTemplate$0(<generated>)	at org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration$JmsTemplateConfiguration$$EnhancerBySpringCGLIB$$654aefcc$$FastClassBySpringCGLIB$$6b82ee57.invoke(<generated>)	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361)	at org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration$JmsTemplateConfiguration$$EnhancerBySpringCGLIB$$654aefcc.jmsTemplate(<generated>)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:483)	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)	... 48 more

Springboot整合activemq时报jmsMessagingTemplate未加载错误

错误现象

Bean method ‘jmsMessagingTemplate' in ‘JmsAutoConfiguration.MessagingTemplateConfiguration' not loaded because Ancestor org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration did not match

网上解决方案

网上最多的方案是：application.properties中配置项的行尾有空格。检查没有，排除了这种可能。

第二种解决方案是：按如下方式将配置spring.activemq.pool.enabled改为false

spring.activemq.pool.enabled=false

启动springboot是不报错了，但是要发的消息也没进队列。至于为什么就不报错了，还没搞明白。如有高人请指点一二。

解决方案

查看ActiveMQConnectionFactoryConfiguration类,自动配置发现需要引入下面这个依赖：

 <dependency>          <groupId>org.messaginghub</groupId>         <artifactId>pooled-jms</artifactId>         <version>1.0.3</version>  </dependency>

将依赖引入pom，再启动springboot，搞定！

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