new ClassPathXmlApplicationContext()报错

离墨狂客 2016-07-26 05:35:08

今天看教程mybatis整合spring的时候，根据教程做，测试的时候报错
java.lang.ExceptionInInitializerError
at org.springframework.context.support.AbstractRefreshableApplicationContext.createBeanFactory(AbstractRefreshableApplicationContext.java:195)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:128)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at com.alan.dao.UserDaoImplTest.setUp(UserDaoImplTest.java:17)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.NullPointerException
at org.springframework.beans.factory.support.DefaultListableBeanFactory.<clinit>(DefaultListableBeanFactory.java:105)
... 30 more

	private ApplicationContext applicationContext;

	

	//在setup方法中得到spring容器

	@Before

	public void setUp() throws Exception {

		applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext.xml");

	}



	@Test

	public void testFindUserById() throws Exception {

		UserDao userDao = (UserDao)applicationContext.getBean("userDao");

		//调用userDao的方法

		Userinfo user = userDao.findUserById(1);

		System.out.println(user);

	}

就是在new ClassPathXmlApplicationContext的时候出错，请问是什么原因?
下面是applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"

	xmlns:context="http://www.springframework.org/schema/context"

	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"

	xsi:schemaLocation="http://www.springframework.org/schema/beans 

		http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 

		http://www.springframework.org/schema/mvc 

		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 

		http://www.springframework.org/schema/context 

		http://www.springframework.org/schema/context/spring-context-3.2.xsd 

		http://www.springframework.org/schema/aop 

		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 

		http://www.springframework.org/schema/tx

		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">



	<!-- 加载配置文件 -->

	<context:property-placeholder location="classpath:db.properties" />



	<!-- 数据源 使用dbcp -->

	<!-- 数据库连接池 -->

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

		destroy-method="close">

		<property name="driverClassName" value="${jdbc.driver}" />

		<property name="url" value="${jdbc.url}" />

		<property name="username" value="${jdbc.username}" />

		<property name="password" value="${jdbc.password}" />

		<property name="maxActive" value="10" />

		<property name="maxIdle" value="5" />

	</bean>



	<!-- sqlSessionFactory -->

	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

		<!-- 加载mybatis的配置文件 -->

		<property name="configLocation" value="mybatis/SqlMapConfig.xml" />

		<!-- 数据源 -->

		<property name="dataSource" ref="dataSource" />

	</bean>

	<!-- 原始dao接口 -->

	<bean id="userDao" class="com.alan.dao.UserDaoImpl">

		<property name="sqlSessionFactory" ref="sqlSessionFactory" />

	</bean>

</beans>