spring整合mybatis步骤_spring整合了哪些框架

大家好，又见面了，我是你们的朋友全栈君。

配置redis.clients.jedis.JedisPool时报错如下：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘jedisPool’ defined in class path resource [beans.xml]: Could not resolve matching constructor (hint: specify index/type/name arguments for simple parameters to avoid type ambiguities)

at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:250)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1114)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1017)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:445)

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:419)

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:544)

at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:304)

… 42 more

使用的是jedis-2.9.0.jar，原因：

	<bean id="jedisPool" class="redis.clients.jedis.JedisPool" destroy-method="destroy"  
	    depends-on="poolCfg">
        <constructor-arg name="poolConfig" ref="poolCfg" /> 
        <constructor-arg name="host" value="${redis.host}" />
        <constructor-arg name="port" value="${redis.port}"/> 
        <constructor-arg name="password" value="${redis.pass}"/>
        <constructor-arg name="database" value="${redis.database}"/>
        <!--<constructor-arg name="timeout" value="${redis.timeout}"/> 连接超时 -->
    </bean>

查看JedisPool的源码，可以发现它有N多个重载的构造函数：

image.png

而找了个遍，就是没有我配置里面写的poolConfig,host,port,password,database的，再加个timeout的倒是有，那就多加个timeout吧，也不知道怎么这么有运气，正好碰到了没有的构造函数，所以在spring中配置JedisPool之前最好还是去看下这个类的结构，找一个适合自己的构造函数去配置就行了，我修改之后的配置如下：

	<bean id="jedisPool" class="redis.clients.jedis.JedisPool" destroy-method="destroy"  
	    depends-on="poolCfg">
        <constructor-arg name="poolConfig" ref="poolCfg" /> 
        <constructor-arg name="host" value="${redis.host}" />
        <constructor-arg name="port" value="${redis.port}"/> 
        <constructor-arg name="password" value="#{'${redis.pass}'!=''?'${redis.pass}':null}"/>
        <constructor-arg name="database" value="#{'${redis.database}'!=''?'${redis.database}':0}"/>
        <constructor-arg name="timeout" value="${redis.timeout}"/>
    </bean>

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