使用Spring Java配置内部类需要属性sessionFactory

Question

我使用的是Spring 4的纯Java配置（没有web.xml），但内部配置类存在一些问题。我有多个像这样的Spring配置文件

@Profile("dev") 
public @interface Dev {}

因此，在我的DataSourceConfig中，我希望每个弹簧配置文件都有多个@Configuration。类似的东西（假设接口DataSourceSetup用@Configuration注释）

@Configuration
public class DataSourceConfig {

    ... // some common methods to both @Dev & @Prod

    @Dev
    public static class DataSourceDev implements DataSourceSetup {

        @Bean
        @Override
        public DataSource dataSource {
            ...
        }

        @Bean
        @Override
        public LocalSessionFactoryBean sessionFactory() {
            ...
        }

        ...

    }

    @Prod
    public static classs DataSourceProd implements ... {
        ...
    }

    ...

}

有了这个，我可以在我的单元测试中引用一个DataSourceConfig.class并更改
@ActiveProfiles({"dev"})。 然而，当我进行测试时，我得到了一个

IllegalArgumentException: Property 'sessionFactory' is required. 

完整追踪：

java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99)
at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101)
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:155)
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:100)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:319)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:202)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:65)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in class com.myapp.DataSourceConfig$DataSourceDev: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'sessionFactory' is required
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:129)
at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:60)
at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100)
at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:250)
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64)
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91)
... 28 more
Caused by: java.lang.IllegalArgumentException: Property 'sessionFactory' is required
at org.springframework.orm.hibernate4.HibernateTransactionManager.afterPropertiesSet(HibernateTransactionManager.java:329)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 43 more

但它被定义了！不确定我错过了什么。这是我的Dao和使用sessionFactory的实现。

@Repository
@Transactional(readOnly = true)
public class EmployeeService implements EmployeeDao {

    @Resource
    private SessionFactory sessionFactory;

    ...
}

以下是我的WebAppInitializer

的摘录

public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] { ApplicationConfig.class, DataSourceConfig.class, WebSecurityConfig.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[] { WebMvcConfig.class };
    }

    ...
}

这是我的测试课

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(classes = { ApplicationConfig.class, DataSourceConfig.class, WebSecurityConfig.class,
    WebMvcConfig.class })
@ActiveProfiles({ "dev" })
public class HomeControllerTest {

    @Autowired
    private WebApplicationContext wac;

    private MockMvc mockMvc;

    @Before
    public void setup() {
        mockMvc = standaloneSetup(new HomeController()).build();
    }

    @Test
    public void testGetHomePage() throws Exception {
        mockMvc.perform(get("/")).andExpect(status().isOk());
    }

}

Answer 1

我不确定但问题可能是因为DataSourceConfig类中的会话工厂类型..

Answer 2

我想我明白了。在我的Config界面中注释@Controller存在一些问题。因此，我需要注释实现类，而不是注释接口。例如我的DataConfigClass：

@Configuration
public class DataSourceConfig {

    ... // some common methods to both @Dev & @Prod

    @Configuration
    @Dev
    public static class DataSourceDev implements DataSourceSetup {

        @Bean
        @Override
        public DataSource dataSource {
            ...
        }

        @Bean
        @Override
        public LocalSessionFactoryBean sessionFactory() {
            ...
        }

        ...

    }

    @Configuration
    @Prod
    public static classs DataSourceProd implements ... {
        ...
    }

    ...

}

我觉得很奇怪。但是哦，SessionFactory现在正在运作。