无法在 Maven 项目中加载 JDBC 驱动程序类 [com.microsoft.sqlserver.jdbc.SQLServerDriver]

Question

我已经通过此链接安装了 sqljdbc4.jar，mvn install。它完全成功，并且 sqljdbc4.jar 已加载到我的库中，下面还有我的 spring bean、依赖项和部署时遇到的错误。任何人都可以帮助我解决我所缺少的地方。该怎么办？

我的 Spring bean 是：

<bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">

        <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
        <property name="url" value="jdbc:sqlserver://vinodh-pc:1433" />
        <property name="username" value="sa" />
        <property name="password" value="vinodh" />
    </bean>

我的依赖是：

<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>sqljdbc4</artifactId>
    <version>${sql.jdbc.version}</version>
    <scope>runtime</scope>
</dependency>

当我部署时，出现以下错误：

ERROR [org.springframework.web.context.ContextLoader] (MSC service thread 1-7) Context initialization failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txmanager' defined in class path resource [db-spring-config.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [db-spring-config.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [com.microsoft.sqlserver.jdbc.SQLServerDriver]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) [spring-context-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) [spring-context-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) [spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) [spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) [spring-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]
    at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3392) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:3850) [jbossweb-7.0.13.Final.jar:]
    at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:90) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
    at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]

Answer 1

我不知道确切的原因，为什么它的行为与 cmd 和通过 eclipse 不同，但我尝试通过从 cmd 运行 mvn 命令，然后通过 eclipse IDE 运行。然后就可以正常工作了。

Answer 2

我最近遇到了这个错误。当我将

spring-boot-starter-parent

版本更改为更新版本时，问题得到解决。

因此，每当您确定依赖项但出现错误时，我建议您也检查依赖项的版本。