一、浩言
生活永远不可能像我们想象的那样好，但也不会想象的那样糟糕，无论是好的时候，还是糟糕的时候，都一定要坚强。
二、背景
人都是对时间铭感的，特别是这个时间，也正是去年的这个时候，自己遇到了一些事情，那个时候刚果毕业不久，经历了哪些事情自己也算事成熟不少，又到了去年的今日，突然觉得好怀念；好了继续问题，最近在在代码里面加队列，但是加了包整个项目的启动就报错，主要是一个加载问题，这就是jar包冲突问题。具体如下：
三、maven问题
在说jar包冲突之前，先说说这个maven编译的时候出现的问题
3.1、 error in opening zip file
今天我的maven项目报打不开jar包，然后在网上搜了下，网上说可以把这个打不开的jar的包目录删掉然后重新编译即可，实验了下果然可以。
3.2、jar冲突问题
maven中可以使用如下命令查看jar的依赖关系
mvn dependency:tree -Dverbose
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说说我的jar问题，在引入了activemq版本为5.14.2之后，主要jar版本如下
<spring.version>4.2.3.RELEASE</spring.version>
<spring.data.redis>1.7.6.RELEASE</spring.data.redis>
<activemq.version>5.14.2</activemq.version>
<redis.clients>>2.6.2</redis.clients>
然后启动的时候就报错如下：
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.mangocity.common.redis.RedisServer com.mangocity.mbr.service.impl.CASServiceImpl.redisServer; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisServer': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisTemplate' defined in class path resource [applicationContext-bean.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.springframework.core.serializer.support.DeserializingConverter.<init>(Ljava/lang/ClassLoader;)V
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 26 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisServer': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisTemplate' defined in class path resource [applicationContext-bean.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.springframework.core.serializer.support.DeserializingConverter.<init>(Ljava/lang/ClassLoader;)V
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:308)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
... 28 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisTemplate' defined in class path resource [applicationContext-bean.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.springframework.core.serializer.support.DeserializingConverter.<init>(Ljava/lang/ClassLoader;)V
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1572)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.f
actory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:461)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:435)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:559)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:169)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:305)
... 39 more
Caused by: java.lang.NoSuchMethodError: org.springframework.core.serializer.support.DeserializingConverter.<init>(Ljava/lang/ClassLoader;)V
at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.<init>(JdkSerializationRedisSerializer.java:53)
at org.springframework.data.redis.core.RedisTemplate.afterPropertiesSet(RedisTemplate.java:119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1631)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)
... 51 more
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最后我首先修改了redis.clients的版本，但是5.14.2的activemq还是不支持，只要是5.11.3之上的都会报错。
最后项目相关的几个包版本如下
<spring.version>4.2.3.RELEASE</spring.version>
<spring.data.redis>1.7.6.RELEASE</spring.data.redis>
<activemq.version>5.11.3</activemq.version>
<redis.clients>>2.9.0</redis.clients>
配置activeMQ的jar包如下：
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.5</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.2</version>
</dependency>
在开发工具中查看activemq-all的依赖是没有显示的
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四、思考
有关jar的冲突在maven中还是会经常遇到的，我的这个本身是没有依赖的，是改了其他jar的版本来实现功能的，但是有的jar是需要排除其他的依赖才行的。此时就需要这种依赖jar的版本信息了。
五：浩语
__
__ _ ____ __| |__ _____ ___
\ \/ \/ / | \ | \\__ \ / _ \
\ /| | / Y \/ __ \( <_> )
\/\_/ |____/|___| (____ /\____/
\/ \/
任何事情都是要靠努力和用心。
