Question

我使用spring jpa数据，扩展JpaRepository，现在我想添加新方法，代码是

public interface HighWayRepository extends JpaRepository<HighWay, String> {

    void updateNewHighWay(List<HighWay> mockedList);

}

public class HighWayRepositoryImpl extends SimpleJpaRepository<HighWay, String>
        implements HighWayRepository {

    private EntityManager entityManager;

    public HighWayRepositoryImpl(Class<HighWay> domainClass, EntityManager em) {
        super(domainClass, em);
        this.entityManager = em;
    }

    @Override
    public void updateNewHighWay(List<HighWay> mockedList) {

    }

}

我使用junit test

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:conf/context.xml" })
@Component
@TransactionConfiguration(defaultRollback = false)
@Transactional
public class HttpTest {
    @Resource
    private HighWayRepository repository;
     @test
     ......}

但它会抛出异常

java.lang.IllegalStateException：无法加载ApplicationContext org.springframework.test.context.DefaultCacheAwareContextLoaderDelegate.loadContext（DefaultCacheAwareContextLoaderDelegate.java:94）在 org.springframework.test.context.DefaultTestContext.getApplicationContext（DefaultTestContext.java:72）在 org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies（DependencyInjectionTestExecutionListener.java:117）在 org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance（DependencyInjectionTestExecutionListener.java:83）在 org.springframework.test.context.TestContextManager.prepareTestInstance（TestContextManager.java:212）在 org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest（SpringJUnit4ClassRunner.java:200）at org.springframework.test.context.junit4.SpringJUnit4ClassRunner $ 1.runReflectiveCall（SpringJUnit4ClassRunner.java:252）在 org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:12）在 org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock（SpringJUnit4ClassRunner.java:254）在 org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:217）在 org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:83）在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 at org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:53）at at org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:229）at at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate（RunBeforeTestClassCallbacks.java:61）在 org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate（RunAfterTestClassCallbacks.java:68）在org.junit.runners.ParentRunner.run（ParentRunner.java:309）at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run（SpringJUnit4ClassRunner.java:163）在 org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:50）在 org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:38）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:459）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:675）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:382）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:192）引起：org.springframework.beans.factory.BeanCreationException：创建名称为＆＃39; httpTest＆＃39;：注入资源的bean时出错依赖失败;嵌套异常是 org.springframework.beans.factory.BeanCreationException：错误创建名为＆＃39; highWayRepositoryImpl＆＃39;的bean在文件中定义 [d：\ WYR \ chinahighway \公路\目标\类\ chinahighway \库\ IMPL \ HighWayRepositoryImpl.class]： bean的实例化失败;嵌套异常是 org.springframework.beans.BeanInstantiationException：失败实例化[chinahighway.repository.impl.HighWayRepositoryImpl]：不找到默认构造函数;嵌套异常是 java.lang.NoSuchMethodException： chinahighway.repository.impl.HighWayRepositoryImpl。（）at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues（CommonAnnotationBeanPostProcessor.java:308）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1202）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:537）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:476）在 org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:303）在 org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230）在 org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:299）在 org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194）在 org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:762）在 org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:757）在 org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:480）在 org.springframework.test.context.support.AbstractGenericContextLoader.loadContext（AbstractGenericContextLoader.java:125）在 org.springframework.test.context.support.AbstractGenericContextLoader.loadContext（AbstractGenericContextLoader.java:60）在 org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading（AbstractDelegatingSmartContextLoader.java:109）在 org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext（AbstractDelegatingSmartContextLoader.java:261）在 org.springframework.test.context.DefaultCacheAwareContextLoaderDelegate.loadContextInternal（DefaultCacheAwareContextLoaderDelegate.java:68）在 org.springframework.test.context.DefaultCacheAwareContextLoaderDelegate.loadContext（DefaultCacheAwareContextLoaderDelegate.java:86） ... 25更多引起： org.springframework.beans.factory.BeanCreationException：错误创建名为＆＃39; highWayRepositoryImpl＆＃39;的bean在文件中定义 [d：\ WYR \ chinahighway \公路\目标\类\ chinahighway \库\ IMPL \ HighWayRepositoryImpl.class]： bean的实例化失败;嵌套异常是 org.springframework.beans.BeanInstantiationException：失败实例化[chinahighway.repository.impl.HighWayRepositoryImpl]：不找到默认构造函数;嵌套异常是 java.lang.NoSuchMethodException： chinahighway.repository.impl.HighWayRepositoryImpl。（）at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean（AbstractAutowireCapableBeanFactory.java:1093）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:1038）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:504）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:476）在 org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:303）在 org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230）在 org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:299）在 org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194）在 org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates（DefaultListableBeanFactory.java:1127）在 org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java:1051）在 org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:949）在 org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource（CommonAnnotationBeanPostProcessor.java:457）在 org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource（CommonAnnotationBeanPostProcessor.java:435）在 org.springframework.context.annotation.CommonAnnotationBeanPostProcessor $ ResourceElement.getResourceToInject（CommonAnnotationBeanPostProcessor.java:559）在 org.springframework.beans.factory.annotation.InjectionMetadata $ InjectedElement.inject（InjectionMetadata.java:169）在 org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java:88）在 org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues（CommonAnnotationBeanPostProcessor.java:305） ... 41更多引起： org.springframework.beans.BeanInstantiationException：失败实例化[chinahighway.repository.impl.HighWayRepositoryImpl]：不找到默认构造函数;嵌套异常是 java.lang.NoSuchMethodException： chinahighway.repository.impl.HighWayRepositoryImpl。（）at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:85）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean（AbstractAutowireCapableBeanFactory.java:1086） ... 57更多引起：java.lang.NoSuchMethodException： chinahighway.repository.impl.HighWayRepositoryImpl。（）at java.lang.Class.getConstructor0（Class.java:2892）at java.lang.Class.getDeclaredConstructor（Class.java:2058）at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:80） ......还有58个

我谷歌异常，原因是HighWayRepositoryImpl类没有参数构造函数，但我无法添加它。怎么可以正常运行测试？或者可能添加配置和注释？

请帮助我，谢谢你的帮助。

spring jpa data没有默认构造函数

0 个答案: