java Hibernate空指针位于AbstractUserTypeHibernateIntegrator用户类型
下面是我的hibernate spring配置的一个片段
<bean id="adminDataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.postgresql.Driver"/>
<property name="url" value="org.postgresql.Driver"/>
<property name="username" value="username"/>
<property name="password" value="password"/>
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="adminDataSource"/>
<property name="packagesToScan" value = "mypackage.model"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">true</prop>
<prop key="hibernate.dialect">${hibernate.sql.dialect}</prop>
<prop key="hibernate.connection.pool_size">${hibernate.connection.pool_size}</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</prop>
<prop key="hibernate.connection.driver_class">org.postgresql.Driver</prop>
<prop key="hibernate.multiTenancy">SCHEMA</prop>
<prop key="hibernate.tenant_identifier_resolver">mypackage.SchemaResolver</prop>
<prop key="hibernate.multi_tenant_connection_provider"mypackage.MultitenantConnectionProvider</prop>
</props>
</property>
</bean>
<bean id = "transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
这是我的SchemaResolver课程
public class SchemaResolver implements CurrentTenantIdentifierResolver {
@Override
public String resolveCurrentTenantIdentifier() {
return "public"; //TODO: Implement service to identify tenant like: userService.getCurrentlyAuthUser().getTenantId();
}
@Override
public boolean validateExistingCurrentSessions() {
return false;
}
}
这是我的多租户连接提供商
public class MultitenantConnectionProvider implements MultiTenantConnectionProvider, ServiceRegistryAwareService {
private static final long serialVersionUID = 4368575201221677384L;
private C3P0ConnectionProvider connectionProvider = null;
@Override
public boolean supportsAggressiveRelease() {
return false;
}
@Override
public void injectServices(ServiceRegistryImplementor serviceRegistry) {
Map lSettings = serviceRegistry.getService(ConfigurationService.class).getSettings();
connectionProvider = new C3P0ConnectionProvider();
connectionProvider.injectServices(serviceRegistry);
connectionProvider.configure(lSettings);
}
@Override
public boolean isUnwrappableAs(Class clazz) {
return false;
}
@Override
public <T> T unwrap(Class<T> clazz) {
return null;
}
@Override
public Connection getAnyConnection() throws SQLException {
final Connection connection = connectionProvider.getConnection();
return connection;
}
@Override
public Connection getConnection(String tenantIdentifier) throws SQLException {
final Connection connection = getAnyConnection();
try {
connection.createStatement().execute("SET SCHEMA '" + tenantIdentifier + "'");
}
catch (SQLException e) {
throw new HibernateException("Could not alter JDBC connection to specified schema [" + tenantIdentifier + "]", e);
}
return connection;
}
@Override
public void releaseAnyConnection(Connection connection) throws SQLException {
try {
connection.createStatement().execute("SET SCHEMA 'public'");
}
catch (SQLException e) {
throw new HibernateException("Could not alter JDBC connection to specified schema [public]", e);
}
connectionProvider.closeConnection(connection);
}
@Override
public void releaseConnection(String tenantIdentifier, Connection connection) throws SQLException {
releaseAnyConnection(connection);
}
}
在运行我的应用程序时，我得到了一个例外
java.lang.NullPointerException
at org.jadira.usertype.spi.shared.AbstractUserTypeHibernateIntegrator.use42Api(AbstractUserTypeHibernateIntegrator.java:80)
at org.jadira.usertype.spi.shared.AbstractUserTypeHibernateIntegrator.integrate(AbstractUserTypeHibernateIntegrator.java:61)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:312)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1857)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:843)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:842)
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:341)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1627)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:540)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:798)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:789)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1341)
at org.eclipse.jetty.maven.plugin.JettyWebAppContext.startWebapp(JettyWebAppContext.java:296)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1334)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:497)
at org.eclipse.jetty.maven.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:365)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.server.Server.start(Server.java:387)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.server.Server.doStart(Server.java:354)
at org.eclipse.jetty.maven.plugin.JettyServer.doStart(JettyServer.java:73)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.maven.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:534)
at org.eclipse.jetty.maven.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:357)
at org.eclipse.jetty.maven.plugin.JettyRunMojo.execute(JettyRunMojo.java:167)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
2014-12-05 21:26:45.136:WARN:oejsh.RequestLogHandler:main: !RequestLog
我使用的是Hibernate4.3.6最终版本，JodaTime2.4，SpringFramework为4.1.1。发布，JDK版本JavaC1.8.0_20，我正在使用Postgresql和Postgresql驱动程序9.3-1102-jdbc41
# 1 楼答案
我在使用Hibernate4.3.6和JadiraUserType 4.0.0时也出现了同样的错误。GA
我猜库Jadira用户类型是4.0.0。GA与Hibernate的多租户模式不兼容
我的解决方案是删除用户类型依赖项，显然不在代码中使用它。 现在，您必须选择使用hibernate多租户或使用usertype
有关详细信息，usertype使用已弃用的API
ConnectionProvider getConnectionProvider()，该API在多租户模式下返回null，因为MultiTenantConnectionProvider不是ConnectionProvider的实例。在多租户模式下，没有类型为ConnectionProvider的服务。用户类型应该使用JdbcConnectionAccess我希望它能在下一个版本中修复
# 2 楼答案
这是Usertype 3.2.0中引入的回归。GA.降级至3.1.0版。GA消除了这个异常
请参阅https://github.com/JadiraOrg/jadira/issues/19以获取错误报告
# 3 楼答案
我同意@Chris Pheby，您可以通过将Jadira版本升级到5.0.0来修复它。GA