Invalid bean definition with name 'dataSource' defined in class path resource [applicationContext.xml]
启动tomcat,访问一个web项目失败,查看日志,发现异常信息:
18-Jul-2019 15:22:16.822 严重 [main] org.apache.catalina.core.StandardContext.listenerStart 异常将上下文初始化事件发送到类的侦听器实例.[org.springframework.web.context.ContextLoaderListener] org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'dataSource' defined in class path resource [applicationContext.xml]: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}"; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}" at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:223) at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.processProperties(PropertySourcesPlaceholderConfigurer.java:180) at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.postProcessBeanFactory(PropertySourcesPlaceholderConfigurer.java:152) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:166) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4682) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5150) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1133) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1867) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(Unknown Source) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1045) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:429) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:929) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:831) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1377) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1367) at java.util.concurrent.FutureTask.run(Unknown Source) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:902) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:423) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:932) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:633) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492) Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'jdbc.driver' in string value "${jdbc.driver}" at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:174) at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:204) at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:178) at org.springframework.context.support.PropertySourcesPlaceholderConfigurer$2.resolveStringValue(PropertySourcesPlaceholderConfigurer.java:172) at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveStringValue(BeanDefinitionVisitor.java:282) at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveValue(BeanDefinitionVisitor.java:204) at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitPropertyValues(BeanDefinitionVisitor.java:141) at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitBeanDefinition(BeanDefinitionVisitor.java:82) at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:220) ... 50 more
网上找了类似的问题,有的是xml中名称写错,有的是注释掉了对应的变量名,但我这边配置xml肯定是对的,在另一台电脑上(自己测试用的电脑)运行正常(两台电脑,相同的操作系统win 2012 r2, 同样版本及配置的tomcat,同样的jre8,tomcat与jre8都是从相同的地方copy解压的,web项目文件也一样),但就是本电脑上(阿里云的服务器)报错,用的是druid数据库连接池,看到有这样一段(可配可不配)
<!--这一项可配可不配,如果不配置druid会根据url自动识别dbType,然后选择相应的driverClassName--> <property name="driverClassName" value="${jdbc.driver}"/>
试着将这段隐藏,重启tomcat,访问正常,不得其解。
以上为jdbc_sqlserver.properties内容:
jdbc.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver #jdbc:sqlserver://<server>:<port>;databaseName=AdventureWorks;user=<user>;password=<password> jdbc.url=jdbc:sqlserver://xxx.xxx.xxx.xxx;databaseName=MyTest jdbc.username=test jdbc.password=test #最大连接数 maxPoolSize=20 #最小连接数 minPoolSize=10 #连接超时时间 checkoutTimeout=60000 #失败重连次数 acquireRetryAttempts=3
applicationContext.xml内容:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--druid 此段摘自 https://github.com/alibaba/druid/wiki/DruidDataSource%E9%85%8D%E7%BD%AE%E5%B1%9E%E6%80%A7%E5%88%97%E8%A1%A8--> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <!--置这个属性的意义在于,如果存在多个数据源,监控的时候可以通过名字来区分开来。如果没有配置,将会生成一个名字,格式是:"DataSource-" + System.identityHashCode(this). 另外配置此属性至少在1.0.5版本中是不起作用的,强行设置name会出错--> <!--<property name="name" value=""/>--> <!--连接数据库的url,不同数据库不一样--> <property name="url" value="${jdbc.url}" /> <!--连接数据库的用户名--> <property name="username" value="${jdbc.username}" /> <!--连接数据库的密码。如果你不希望密码直接写在配置文件中--> <property name="password" value="${jdbc.password}" /> <!--这一项可配可不配,如果不配置druid会根据url自动识别dbType,然后选择相应的driverClassName--> <property name="driverClassName" value="${jdbc.driver}"/> <!--初始化时建立物理连接的个数。初始化发生在显示调用init方法,或者第一次getConnection时--> <property name="initialSize" value="10" /> <!--最大连接池数量--> <property name="maxActive" value="20" /> <!--最小连接池数量--> <property name="minIdle" value="1" /> <!--获取连接时最大等待时间,单位毫秒。配置了maxWait之后,缺省启用公平锁,并发效率会有所下降,如果需要可以通过配置useUnfairLock属性为true使用非公平锁。--> <property name="maxWait" value="60000" /> <!--是否缓存preparedStatement,也就是PSCache。PSCache对支持游标的数据库性能提升巨大,比如说oracle。在mysql下建议关闭--> <property name="poolPreparedStatements" value="true" /> <!--要启用PSCache,必须配置大于0,当大于0时,poolPreparedStatements自动触发修改为true。在Druid中,不会存在Oracle下PSCache占用内存过多的问题,可以把这个数值配置大一些,比如说100--> <property name="maxOpenPreparedStatements" value="20" /> <!--用来检测连接是否有效的sql,要求是一个查询语句,常用select 'x'。如果validationQuery为null,testOnBorrow、testOnReturn、testWhileIdle都不会起作用。--> <!--<property name="validationQuery" value="select 'x'" />--> <!--单位:秒,检测连接是否有效的超时时间。底层调用jdbc Statement对象的void setQueryTimeout(int seconds)方法--> <!--<property name="validationQueryTimeout" value="3" />--> <!--申请连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能--> <property name="testOnBorrow" value="false" /> <!--归还连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能。--> <property name="testOnReturn" value="false" /> <!--建议配置为true,不影响性能,并且保证安全性。申请连接的时候检测,如果空闲时间大于timeBetweenEvictionRunsMillis,执行validationQuery检测连接是否有效。--> <property name="testWhileIdle" value="true" /> <!--连接池中的minIdle数量以内的连接,空闲时间超过minEvictableIdleTimeMillis,则会执行keepAlive操作--> <property name="keepAlive" value="true" /> <!--有两个含义:--> <!--1) Destroy线程会检测连接的间隔时间,如果连接空闲时间大于等于minEvictableIdleTimeMillis则关闭物理连接。--> <!--2) testWhileIdle的判断依据,详细看testWhileIdle属性的说明--> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!--连接保持空闲而不被驱逐的最小时间--> <property name="minEvictableIdleTimeMillis" value="300000" /> <!--物理连接初始化的时候执行的sql--> <!--<property name="connectionInitSqls" value="" />--> <!--当数据库抛出一些不可恢复的异常时,抛弃连接, 默认根据dbType自动识别--> <!--<property name="exceptionSorter" value="" />--> <!--属性类型是字符串,通过别名的方式配置扩展插件,常用的插件有:--> <!--监控统计用的filter:stat--> <!--日志用的filter:log4j--> <!--防御sql注入的filter:wall--> <property name="filters" value="stat" /> <!--类型是List<com.alibaba.druid.filter.Filter>,如果同时配置了filters和proxyFilters,是组合关系,并非替换关系--> <!--<property name="proxyFilters" value="" />--> <!--属性asyncInit是在建议的帮助文档中写的,但在实际介绍时没有说明 https://github.com/alibaba/druid/wiki/DruidDataSource%E9%85%8D%E7%BD%AE--> <!--<property name="asyncInit" value="true" />--> </bean> <!--配合MyBatis--> <bean id="vendorProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"> <property name="properties"> <props> <prop key="SQL Server">sqlserver</prop> <prop key="MySQL">mysql</prop> </props> </property> </bean> <bean id="databaseIdProvider" class="org.apache.ibatis.mapping.VendorDatabaseIdProvider"> <property name="properties" ref="vendorProperties"/> </bean> <!-- 配置 SqlSessionFactory 对象,spring和MyBatis完美整合,不需要mybatis的配置映射文件--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--注入数据库连接池--> <property name="dataSource" ref="dataSource"/> <!-- 配置 MyBaties 全局配置⽂件:mybatis-config.xml --> <property name="configLocation" value="classpath:mybatis-config.xml"/> <!-- 扫描 model 包 使⽤别名 --> <property name="typeAliasesPackage" value="com.zrensoft.model"/> <property name="databaseIdProvider" ref="databaseIdProvider" /> <!-- 扫描 sql 配置⽂件:mapper 需要的 xml ⽂件 --> <property name="mapperLocations" value="classpath:mapper/*.xml"/> </bean> <!-- 配置扫描 dao 接⼝包, 动态实现 dao 接⼝, 注⼊到 Spring 容器中 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 注⼊ sqlSessionFactory --> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 给出需要扫描 dao 接⼝包 --> <property name="basePackage" value="com.xxxx.dao"/> </bean> <!--spring-service--> <!-- 扫描 service 包下所有使⽤注解的类型 --> <context:component-scan base-package="com.xxxx.service"/> <!-- 配置事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!-- 注⼊数据库连接池 --> <property name="dataSource" ref="dataSource"/> </bean> <beans profile="sqlserver"> <context:property-placeholder location="classpath:jdbc_sqlserver.properties"/> </beans> <beans profile="mysql"> <context:property-placeholder location="classpath:jdbc_mysql.properties"/> </beans> </beans>
如有哪位发现问题是哪里,请告知,tks