spring配备启动报错,求各位大神指点

spring配置启动报错,求各位大神指点
我搭建了一个struts2,spring,myibatis框架在spring的配置中driver的
value='com.mysql.jdbc.Driver'改成value=${jdbc.driver}就报错，
使用的是proxool-0.9.1.jar,proxool-cglib.jar

<!--配置数据源属性文件  -->  
    <context:property-placeholder location="classpath:jdbc.properties"/>  
<!-- config for proxool datasource -->
<bean id="dataSource"  class="org.logicalcobwebs.proxool.ProxoolDataSource">
<property name="alias" value="doo-proxool" />
<property name="driver" value="${jdbc.driver}" />
<property name="driverUrl" value="jdbc:mysql://localhost:3306/doo?useUnicode=true&amp;characterEncoding=UTF-8"/>
<property name="user" value="root" />
<property name="password" value="root" />
</bean>

报错的内容如下:
ERROR 2012-12-17 09:44:04,186 org.logicalcobwebs.proxool.ConnectionPool: Couldn't load class ${jdbc.driver}
java.lang.ClassNotFoundException: ${jdbc.driver}
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.logicalcobwebs.proxool.ConnectionPool.setDefinition(ConnectionPool.java:740)
at org.logicalcobwebs.proxool.ConnectionPool.<init>(ConnectionPool.java:115)
at org.logicalcobwebs.proxool.ConnectionPoolManager.createConnectionPool(ConnectionPoolManager.java:93)
at org.logicalcobwebs.proxool.ProxoolFacade.registerConnectionPool(ProxoolFacade.java:109)
at org.logicalcobwebs.proxool.ProxoolDataSource.registerPool(ProxoolDataSource.java:140)
at org.logicalcobwebs.proxool.ProxoolDataSource.getConnection(ProxoolDataSource.java:94)
at org.apache.ibatis.mapping.DefaultDatabaseIdProvider.getDatabaseProductName(DefaultDatabaseIdProvider.java:63)
at org.apache.ibatis.mapping.DefaultDatabaseIdProvider.getDatabaseName(DefaultDatabaseIdProvider.java:53)
at org.apache.ibatis.mapping.DefaultDatabaseIdProvider.getDatabaseId(DefaultDatabaseIdProvider.java:41)
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:395)
at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:295)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:400)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:612)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:446)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
------解决方案--------------------

你改成${jdbc.driver}了，那你在哪给${jdbc.driver}赋值了？
[解决办法]
又在哪定义了jdbc.driver呢？
[解决办法]
<context:property-placeholder location="classpath:jdbc.properties"/>   

加这条配置后没报错的话，就要看jdbc.properties的内容是不是写对了
[解决办法]
<context:property-placeholder location="classpath:jdbc.properties"/> 

看看你这个属性文件的位置、是放在某个包下面还是直接放在src下面的！
如果放在包下面得把路径写全了！
classpath:com/....../config/jdbc.properties
[解决办法]
你把你的配置数据源属性文件夜放到你的props文件夹下。
[解决办法]

引用:

你把你的配置数据源属性文件夜放到你的props文件夹下。

+1
或者你把 <context:property-placeholder location="classpath:jdbc.properties"/> 
location="classpath*:jdbc.properties"  
[解决办法]
${jdbc.driver}这个值没有取到，检查下jdbc.properties这个文件和他的路径

查看更多 下一篇