无法使用JNDI数据源在JUnit中加载ApplicationContext(Failed to load ApplicationContext in JUnit with JNDI datasource)

 我在测试我的应用程序时遇到了一些麻烦，而在正常执行中它运行良好。 我认为它来自未找到的JNDI资源，但我不明白为什么以及如何解决它。 
 
 当我开始我的Junit测试时，我收到了这个错误： 
 
java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99)
    at ...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'DAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource com.sample.DAOImpl.myDatasource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myDatasource' defined in URL [file:src/test/resources/spring/test-dao-config.xml]: Invocation of init method failed; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
    at ...
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource com.sample.DAOImpl.myDatasource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
    at ...
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
    at ..
 
 这是我的配置： 
 
 的context.xml 
 
<Resource name="jdbc/myDatasource" auth="Container" type="javax.sql.DataSource"
    driverClassName="oracle.jdbc.OracleDriver"
    url="jdbc:oracle:thin:@database:99999:instance"
    username="user"
    password="password"
    validationQuery="select 1 from dual"
    testOnBorrow ="true"
    maxActive="5"
    maxIdle="1"
    maxWait="-1" />
 
 测试的DAO-config.xml中 
 
<bean id="myDatasource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/jdbc/myDatasource" />
</bean>
 
 DaoImpl 
 
@Repository
public class DacsDAOImpl implements DacsDAO
{
    private final static Logger LOGGER = LoggerFactory.getLogger(DAOImpl.class);

    @Autowired
    @Qualifier("myDatasource")
    private DataSource myDatasource;

    ....
}
 
 而我的测试 
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "file:src/test/resources/spring/test-dao-config.xml" })
public class MyDAOImplTest
{
    private MyDAO dao;

    @BeforeClass
    public static void initJndi() throws IllegalStateException, NamingException
    {
        //some test, but doesn't work

//      SimpleNamingContextBuilder builder = SimpleNamingContextBuilder.emptyActivatedContextBuilder();
//      builder.bind("java:comp/env/jdbc/myDatasource", "myDatasource");
//      builder.activate();
    }

    @Before
    public void setUp() throws IllegalStateException, NamingException
    {
        dao = new MyDAOImpl();
    }

    @Test
    public void testTotalUser()
    {
        int result = dao.getTotalUser();
        Assert.assertEquals(0, result);
    }
}
 
 谢谢 

I have some troubles testing my application, whereas it works well in normal execution. I think it comes from JNDI resources which are not found, but I don't understand why and how to fix it.
 
When I start my Junit test, I got this error:
 
java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99)
    at ...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'DAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource com.sample.DAOImpl.myDatasource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myDatasource' defined in URL [file:src/test/resources/spring/test-dao-config.xml]: Invocation of init method failed; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
    at ...
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource com.sample.DAOImpl.myDatasource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
    at ...
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=myDatasource)}
    at ..
 
Here is my configuration:
 
Context.xml
 
<Resource name="jdbc/myDatasource" auth="Container" type="javax.sql.DataSource"
    driverClassName="oracle.jdbc.OracleDriver"
    url="jdbc:oracle:thin:@database:99999:instance"
    username="user"
    password="password"
    validationQuery="select 1 from dual"
    testOnBorrow ="true"
    maxActive="5"
    maxIdle="1"
    maxWait="-1" />
 
test-dao-config.xml
 
<bean id="myDatasource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/jdbc/myDatasource" />
</bean>
 
DaoImpl
 
@Repository
public class DacsDAOImpl implements DacsDAO
{
    private final static Logger LOGGER = LoggerFactory.getLogger(DAOImpl.class);

    @Autowired
    @Qualifier("myDatasource")
    private DataSource myDatasource;

    ....
}
 
And my tests
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "file:src/test/resources/spring/test-dao-config.xml" })
public class MyDAOImplTest
{
    private MyDAO dao;

    @BeforeClass
    public static void initJndi() throws IllegalStateException, NamingException
    {
        //some test, but doesn't work

//      SimpleNamingContextBuilder builder = SimpleNamingContextBuilder.emptyActivatedContextBuilder();
//      builder.bind("java:comp/env/jdbc/myDatasource", "myDatasource");
//      builder.activate();
    }

    @Before
    public void setUp() throws IllegalStateException, NamingException
    {
        dao = new MyDAOImpl();
    }

    @Test
    public void testTotalUser()
    {
        int result = dao.getTotalUser();
        Assert.assertEquals(0, result);
    }
}
 
Thanks

原文：https://stackoverflow.com/questions/22461501