java - Spring 4 - Hibernate 5 - 创建 LocalSessionFactoryBean 时出错

Question

已经挣扎了一晚，昨天一切都好。我想我在某个地方搞砸了。

有人知道问题出在哪里吗？下面的日志并不能帮助我找到罪魁祸首。

请告诉我您希望我在这里分享什么。

WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with
        name 'agentPointDao': Unsatisfied dependency expressed through method 'init' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating
        bean with name 'localSessionFactoryBean' defined in xxx.sma.engine.ConfigurationRepository: Invocation of init method failed; nested exception is java.lang.NullPointer
        Exception
        Mar 16, 2017 7:16:56 AM org.springframework.web.context.ContextLoader initWebApplicationContext
        SEVERE: Context initialization failed
        org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'agentPointDao': Unsatisfied dependency expressed through method 'init' parameter 0; n
        ested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'localSessionFactoryBean' defined in xxx.sma.engine.Configura
        tionRepository: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:671)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4937)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
        Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'localSessionFactoryBean' defined in xxx.sma.engine.ConfigurationRepo
        sitory: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:663)
        ... 24 more
        Caused by: java.lang.NullPointerException
        at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1674)
        at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1583)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
        at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
        at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726)
        at org.springframework.orm.hibernate5.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:511)
        at org.springframework.orm.hibernate5.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:495)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579)
        ... 34 more

        Mar 16, 2017 7:16:56 AM org.apache.catalina.core.StandardContext listenerStart
        SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
        org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'agentPointDao': Unsatisfied dependency expressed through method 'init' parameter 0; n
        ested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'localSessionFactoryBean' defined in xxx.sma.engine.Configura
        tionRepository: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:671)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4937)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
        Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'localSessionFactoryBean' defined in xxx.sma.engine.ConfigurationRepo
        sitory: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:663)
        ... 24 more
        Caused by: java.lang.NullPointerException
        at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1674)
        at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1583)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
        at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
        at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726)
        at org.springframework.orm.hibernate5.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:511)
        at org.springframework.orm.hibernate5.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:495)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579)
        ... 34 more

        Mar 16, 2017 7:16:56 AM org.apache.catalina.core.StandardContext startInternal
        SEVERE: Error listenerStart

这是我的一些代码:

ConfigurationRepository.java

import com.zaxxer.hikari.HikariDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

@Configuration
@EnableTransactionManagement
@ComponentScan({"xxx.sma.engine"})
public class ConfigurationRepository {

    //development
    public final static String DB_URL = "jdbc:oracle:thin:@xx.xxx.xx.x:1521:orcl";
    public final static String DB_USERNAME = "XXX";
    public final static String DB_PASSWORD = "xxx";
    public final static Integer DB_MAX_POOL = 2;

    @Bean
    public LocalSessionFactoryBean localSessionFactoryBean() {
        LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean();
        localSessionFactoryBean.setDataSource(dataSource());
        localSessionFactoryBean.setHibernateProperties(properties());
        localSessionFactoryBean.setPackagesToScan(new String[]{"xxx.sma.engine.model"});
        return localSessionFactoryBean;
    }

    @Bean
    public HibernateTransactionManager hibernateTransactionManager() {
        HibernateTransactionManager hibernateTransactionManager = new HibernateTransactionManager();
        hibernateTransactionManager.setSessionFactory(localSessionFactoryBean().getObject());
        return hibernateTransactionManager;
    }

    private DataSource dataSource() {
        HikariDataSource hikariDataSource = new HikariDataSource();
        hikariDataSource.setMaximumPoolSize(DB_MAX_POOL);
        hikariDataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
        hikariDataSource.setJdbcUrl(DB_URL);
        hikariDataSource.setUsername(DB_USERNAME);
        hikariDataSource.setPassword(DB_PASSWORD);
        return hikariDataSource;
    }

    private Properties properties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", "org.hibernate.dialect.Oracle10gDialect");
        properties.put("hibernate.show_sql", true);
        return properties;
    }

}

AgentPointDao.java

import com.genevacons.h3i.sma.engine.model.AgentPoint;
public interface AgentPointDao extends HibernateDao {
    AgentPoint getByUserId(Integer userId);
}

AgentPointDaoImpl.java

import com.genevacons.h3i.sma.engine.dao.AgentPointDao;
import com.genevacons.h3i.sma.engine.dao.BgDao;
import com.genevacons.h3i.sma.engine.model.AgentPoint;
import com.genevacons.h3i.sma.engine.model.Bg;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository("agentPointDao")
public class AgentPointDaoImpl extends HibernateDaoImpl<AgentPoint> implements AgentPointDao {
    private SessionFactory sessionFactory;

    public AgentPointDaoImpl() {
        super(AgentPoint.class);
    }

    @Autowired
    public void init(SessionFactory sessionFactory) {
        setSessionFactory(sessionFactory);
        this.sessionFactory = sessionFactory;
    }
    public AgentPoint getByUserId(Integer userId) {
        List<AgentPoint> agentPointList = sessionFactory.getCurrentSession().createQuery("from AgentPoint where user.userId = :userId", AgentPoint.class)
                .setParameter("userId", userId)
                .getResultList();
        return agentPointList.isEmpty() ? null : agentPointList.get(0);
    }
}

Answer 1

从 stacktrace 中您可以看到它可能与配置有关(即 FK - 外键 - 未找到):

    Caused by: java.lang.NullPointerException
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1674)
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1583)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726)
    at org.springframework.orm.hibernate5.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:511)

因此，请仔细检查您的实体配置不包含一些悬空的外键/确保您的包扫描包含所有实体。

以下是 stackoverflow 中的一些类似问题:link 1 , link 2