异常：Caused by: java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties

参考文章：

使用Log4jdbc-log4j2监听MyBatis中运行的SQL和Connection

使用 log4jdbc格式化输出SQL，maven配置如下：

<dependency>
<groupId>org.bgee.log4jdbc-log4j2</groupId>
<artifactId>log4jdbc-log4j2-jdbc4</artifactId>
<version>1.16</version>
</dependency>

datasouce.xml配置如下：

    <!-- DataSource -->
    <bean id="dataSourceSpied" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${db.driver}"></property>
        <property name="url" value="${db.url}"></property>
        <property name="username" value="${db.username}"></property>
        <property name="password" value="${db.password}"></property>
    </bean>
    <!-- log4jdbc -->
    <bean id="dataSource" class="net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy">
        <constructor-arg ref="dataSourceSpied" />
    </bean>

报以下异常

java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:122) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:312) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:288) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.11.jar:na]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:284) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) [junit-4.11.jar:na]
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) [junit-4.11.jar:na]
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) [junit-4.11.jar:na]
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) [junit-4.11.jar:na]
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) [junit-4.11.jar:na]
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309) [junit-4.11.jar:na]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174) [spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘userDao‘ defined in file [C:\stsworkspace\git\tqc\tqc-common-dal\target\classes\spring\applicationContext-dal.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory‘ defined in URL [file:/C:/stsworkspace/git/tqc/tqc-common-dal/target/classes/spring/datasource.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 URL [file:/C:/stsworkspace/git/tqc/tqc-common-dal/target/classes/spring/datasource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) ~[spring-context-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) ~[spring-context-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:120) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:248) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91) ~[spring-test-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    ... 25 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory‘ defined in URL [file:/C:/stsworkspace/git/tqc/tqc-common-dal/target/classes/spring/datasource.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 URL [file:/C:/stsworkspace/git/tqc/tqc-common-dal/target/classes/spring/datasource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1387) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1128) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByName(AbstractAutowireCapableBeanFactory.java:1146) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1096) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    ... 39 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘dataSource‘ defined in URL [file:/C:/stsworkspace/git/tqc/tqc-common-dal/target/classes/spring/datasource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:288) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1045) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:949) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    ... 51 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:121) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:280) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    ... 60 common frames omitted
Caused by: java.lang.NoClassDefFoundError: Could not initialize class net.sf.log4jdbc.Properties
    at net.sf.log4jdbc.log.SpyLogFactory.getSpyLogDelegator(SpyLogFactory.java:69) ~[log4jdbc-log4j2-jdbc4-1.16.jar:na]
    at net.sf.log4jdbc.sql.jdbcapi.DataSourceSpy.<init>(DataSourceSpy.java:90) ~[log4jdbc-log4j2-jdbc4-1.16.jar:na]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_11]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_11]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_11]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:408) ~[na:1.8.0_11]
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148) ~[spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
    ... 62 common frames omitted
16:44:15.402 [main] DEBUG o.s.t.c.s.DirtiesContextTestExecutionListener - After test class: context [[[email protected] testClass = TestUserDao, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [[email protected] testClass = TestUserDao, locations = ‘{classpath*:/spring/applicationContext*.xml, classpath*:/spring/datasource.xml}‘, classes = ‘{}‘, contextInitializerClasses = ‘[]‘, activeProfiles = ‘{}‘, contextLoader = ‘org.springframework.test.context.support.DelegatingSmartContextLoader‘, parent = [null]]]], dirtiesContext [false].

产生原因：

未找到

解决方案：

未找到