Spring：“NoSuchBeanDefinitionException：未定义名为'dataSource'的bean”测试时

我一直在尝试测试应用程序的DAO层，但是我一直收到此错误。Spring：“NoSuchBeanDefinitionException：未定义名为'dataSource'的bean”测试时

下面是测试类

RegionDAOTest.java

import static org.junit.Assert.assertEquals; 
import static org.junit.Assert.assertNotNull; 

import org.junit.After; 
import org.junit.Before; 
import org.junit.Test; 
import org.junit.runner.RunWith; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.boot.test.SpringApplicationConfiguration; 
import org.springframework.jdbc.core.JdbcTemplate; 
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; 

import com.teamw.ibt.dao.impl.RegionDAOImpl; 
import com.teamw.ibt.model.Region; 

@RunWith(SpringJUnit4ClassRunner.class) 
@SpringApplicationConfiguration(locations = "classpath:app-context.xml") 
public class RegionDAOTest extends AbstractDAOTest { 

@Autowired 
private JdbcTemplate jdbcTemplate; 
@Autowired 
private RegionDAOImpl regionDAOImpl; 

@Before 
public void setUp(){ 
} 

@After 
public void tearDown(){ 
} 

@Test 
    public void testContext() { 
     assertNotNull(regionDAOImpl); 
    } 

@Test 
public void FindByCodeTest() { 
    Region region = regionDAOImpl.findByCode("1"); 
    assertEquals('1', region.getCode()); 
    assertEquals("Region 1", region.getName()); 
} 
}

RegionDAOImpl.java

@Repository 
public class RegionDAOImpl implements RegionDAO { 

@Autowired 
private JdbcTemplate jdbcTemplate; 

public RegionDAOImpl() { 
} 

public RegionDAOImpl(JdbcTemplate jdbcTemplate) { 
    this.jdbcTemplate = jdbcTemplate; 
} 

public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { 
    this.jdbcTemplate = jdbcTemplate; 
} 


public void insert(Region region) { 
    String query = "INSERT INTO IBT.REGION (code, name) VALUES ('" + region.getCode() + "','" + region.getName() + "');"; 
    jdbcTemplate.update(query); 
} 

public Region findByCode(String code) { 
    String query = "SELECT * FROM IBT.REGION WHERE CODE = '" + code + "';"; 
    return jdbcTemplate.query(query, new ResultSetExtractor<Region>() { 
     @Override 
     public Region extractData(ResultSet rs) throws SQLException, DataAccessException { 
      if (rs.next()) { 
       return new Region(
        rs.getString("code"), 
        rs.getString("name") 
       ); 
      } 

      return null; 
     } 
    }); 
} 
}

APP-context.xml中

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd "> 

<!-- Initialization for data source --> 
<bean id="dataSource" 
    class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="org.h2.Driver"/> 
    <property name="url" value="jdbc:h2:mem"/> 
    <property name="username" value="SA"/> 
    <property name="password" value="test"/> 
</bean> 

<bean id="JdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> 
    <property name="dataSource" ref="dataSource"></property> 
</bean> 

<bean id="regionDAOImpl" name="regionDAOImpl" class="com.teamw.ibt.dao.impl.RegionDAOImpl"> 
    <constructor-arg ref="jdbcTemplate"/> 
</bean> 
</beans>

据我所知，我已经成立了每一个正确，但由于某种原因，它说dataSource没有定义。

编辑：这里是日志

java.lang.IllegalStateException: Failed to load ApplicationContext 
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) ~[spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) ~[spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73] 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73] 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73] 
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_73] 
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:216) ~[spring-core-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:201) ~[spring-core-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at com.github.springtestdbunit.DbUnitTestExecutionListener$DbUnitTestContextAdapter.getApplicationContext(DbUnitTestExecutionListener.java:256) ~[spring-test-dbunit-1.2.1.jar:na] 
at com.github.springtestdbunit.DbUnitTestExecutionListener.getDatabaseConnectionUsingCommonBeanNames(DbUnitTestExecutionListener.java:135) ~[spring-test-dbunit-1.2.1.jar:na] 
at com.github.springtestdbunit.DbUnitTestExecutionListener.prepareTestInstance(DbUnitTestExecutionListener.java:112) ~[spring-test-dbunit-1.2.1.jar:na] 
at com.github.springtestdbunit.DbUnitTestExecutionListener.prepareTestInstance(DbUnitTestExecutionListener.java:87) ~[spring-test-dbunit-1.2.1.jar:na] 
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:228) ~[spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:230) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit.jar:4.12] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:249) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit.jar:4.12] 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit.jar:4.12] 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit.jar:4.12] 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit.jar:4.12] 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit.jar:4.12] 
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit.jar:4.12] 
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193) [spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.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 'regionDAOImpl' defined in class path resource [app-context.xml]: Cannot resolve reference to bean 'jdbcTemplate' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdbcTemplate' defined in class path resource [app-context.xml]: Cannot resolve reference to bean 'dataSource' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'dataSource' is defined 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:140) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1143) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) ~[spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT] 
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) ~[spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT] 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) ~[spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT] 
at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:98) ~[spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT] 
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ~[spring-test-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
... 33 common frames omitted 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdbcTemplate' defined in class path resource [app-context.xml]: Cannot resolve reference to bean 'dataSource' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'dataSource' is defined 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:140) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1143) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
... 53 common frames omitted 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'dataSource' is defined 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:698) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1175) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:284) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
... 65 common frames omitted

来源

2016-02-26 Morti

1）你为什么不用@autowire RegionDAOImpl进入测试？你真的不想使用new（） –

2）你应该在你的sql字符串中真正使用占位符而不是字符串连接。可能是一个潜在的安全/ SQL注入... –

3）你不需要在3个地方将@dbctemplate自动装入dao。只需@ autowire它在一次，即字段OR设置器或构造函数 –

你必须RegionDao的JdbcTemplate的许多布线，你将需要改变。

在app-context中，您只是将dataSource引用为构造函数arg。如果这是你想要做的事情，那么应用程序上下文保持原样，你将需要摆脱下面的方法 -

public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { 
    this.jdbcTemplate = jdbcTemplate; 
}

或者，你可以摆脱与JdbcTemplate的构造和然后将dataSource作为应用上下文中的“属性”连线。

<bean id="regionDAOImpl" name="regionDAOImpl" class="com.teamw.ibt.dao.impl.RegionDAOImpl"> 
    <!-- constructor-arg ref="jdbcTemplate" --> 
    <property name="jdbcTemplate" ref="jdbcTemplate"></property> 
</bean>

来源

2016-02-26 16:53:10 r2d2

Spring：“NoSuchBeanDefinitionException：未定义名为'dataSource'的bean”测试时

回答

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