參考文章：
使用Log4jdbc-log4j2監聽MyBatis中運行的SQL和Connection
使用 log4jdbc格式化輸出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>
異常信息：
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 [[TestContext@8a9f61 testClass = TestUserDao, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [MergedContextConfiguration@16905e 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].
產生原因：
我的日志環境使用的是slf4j，log4jdbc-log4j2默認只支持log4j2，如果想要支持slf4j，則需要增加如下配置：
Configure log4jdbc-log4j2 options
log4jdbc-log4j2 can be configured in the exact same way than log4jdbc (see below). Please note two changes as compared to log4jdbc:
log4jdbc.spylogdelegator.name: this is a new option, allowing to provide the qualified class name of the logger to use. Notably, if you want to use the SLF4J logger rather than Log4j 2, you must set this option to the valuenet.sf.log4jdbc.log.slf4j.Slf4jSpyLogDelegator.
解決方案：
在classpath的jdbc.properties中增加如下配置：
#jdbc settings #db.driver=com.mysql.jdbc.Driver #db.url=jdbc:mysql://127.0.0.1:3306/tqc db.driver=net.sf.log4jdbc.sql.jdbcapi.DriverSpy db.url=jdbc:log4jdbc:mysql://127.0.0.1:3306/tqc db.username=aaa db.password=aaa
log4jdbc.log4j2.properties中增加如下配置
dbc.spylogdelegator.name=net.sf.log4jdbc.log.slf4j.Slf4jSpyLogDelegator log4jdbc.debug.stack.prefix= log4jdbc.sqltiming.warn.threshold= log4jdbc.sqltiming.error.threshold= log4jdbc.dump.booleanastruefalse= log4jdbc.dump.sql.maxlinelength= log4jdbc.dump.fulldebugstacktrace= log4jdbc.statement.warn= log4jdbc.dump.sql.select= log4jdbc.dump.sql.insert= log4jdbc.dump.sql.update= log4jdbc.dump.sql.delete= log4jdbc.dump.sql.create= log4jdbc.dump.sql.addsemicolon= log4jdbc.auto.load.popular.drivers= log4jdbc.trim.sql= log4jdbc.trim.sql.extrablanklines= log4jdbc.suppress.generated.keys.exception= log4jdbc.drivers=