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我的 Spring Boot Restservice 应用程序在正常的 Spring 应用程序上下文中运行得很好。但是当我尝试在 Google App Engine 上运行它时，会抛出以下异常:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.PlatformTransactionManager]: Factory method 'transactionManager' threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
这是我的异常的堆栈跟踪:
D:\Progs\JAVA\jdk1.7.0_80\bin\java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:50742,suspend=y,server=n -javaagent:D:/Progs/appengine-java-sdk/lib/agent/appengine-agent.jar -Xbootclasspath/p:D:/Progs/appengine-java-sdk/lib/override/appengine-dev-jdk-overrides.jar -Dfile.encoding=windows-1252 -classpath "D:\Progs\appengine-java-sdk\lib\appengine-tools-api.jar;D:\Progs\JAVA\jdk1.7.0_80\lib\tools.jar;D:\Progs\IntelliJ IDEA 14.1.1\lib\idea_rt.jar" com.google.appengine.tools.development.DevAppServerMain -p 8080 --disable_update_check C:\Users\pk\Documents\ItelliJProjects\gps-trackman\target\gps-trackman-0.0.1-SNAPSHOT
Connected to the target VM, address: '127.0.0.1:50742', transport: 'socket'
Apr 18, 2015 11:38:05 AM java.util.prefs.WindowsPreferences <init>
WARNUNG: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
Apr 18, 2015 11:38:06 AM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
INFORMATION: Successfully processed C:\Users\pk\Documents\ItelliJProjects\gps-trackman\target\gps-trackman-0.0.1-SNAPSHOT\WEB-INF/appengine-web.xml
Apr 18, 2015 11:38:06 AM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml
INFORMATION: Successfully processed C:\Users\pk\Documents\ItelliJProjects\gps-trackman\target\gps-trackman-0.0.1-SNAPSHOT\WEB-INF/web.xml
Apr 18, 2015 11:38:06 AM com.google.apphosting.utils.jetty.JettyLogger info
INFORMATION: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Connected to server
Apr 18, 2015 11:38:07 AM com.google.apphosting.utils.jetty.JettyLogger info
INFORMATION: jetty-6.1.x
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.2.3.RELEASE)
Apr 18, 2015 11:38:09 AM com.google.appengine.tools.development.ApiProxyLocalImpl log
INFORMATION: javax.servlet.ServletContext log: Initializing Spring embedded WebApplicationContext
2015-04-18 11:38:09.421 INFO ??? --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1429349889417 ms
2015-04-18 11:38:09.439 INFO ??? --- [ main] o.s.boot.SpringApplication : Starting application on KABUL with PID ??? (C:\Users\pk\Documents\ItelliJProjects\gps-trackman\target\gps-trackman-0.0.1-SNAPSHOT\WEB-INF\lib\spring-boot-1.2.3.RELEASE.jar started by pk in C:\Users\pk\Documents\ItelliJProjects\gps-trackman\target\gps-trackman-0.0.1-SNAPSHOT)
2015-04-18 11:38:09.529 INFO ??? --- [ main] onConfigNonEmbeddedWebApplicationContext : Refreshing org.springframework.boot.legacy.context.web.AnnotationConfigNonEmbeddedWebApplicationContext@73bad293: startup date [Sat Apr 18 11:38:09 CEST 2015]; root of context hierarchy
2015-04-18 11:38:14.349 INFO ??? --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2015-04-18 11:38:14.627 INFO ??? --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'entityManagerFactory': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=appConfig; factoryMethodName=entityManagerFactory; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/pekam/AppConfig.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=true; factoryBeanName=org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration; factoryMethodName=entityManagerFactory; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]]
2015-04-18 11:38:18.744 INFO ??? --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2015-04-18 11:38:21.493 INFO ??? --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$563a5e93] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-04-18 11:38:21.629 INFO ??? --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionAttributeSource' of type [class org.springframework.transaction.annotation.AnnotationTransactionAttributeSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-04-18 11:38:21.670 INFO ??? --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionInterceptor' of type [class org.springframework.transaction.interceptor.TransactionInterceptor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-04-18 11:38:21.691 INFO ??? --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.config.internalTransactionAdvisor' of type [class org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-04-18 11:38:23.695 INFO ??? --- [ main] o.s.j.d.DriverManagerDataSource : Loaded JDBC driver: org.h2.Driver
2015-04-18 11:38:23.696 INFO ??? --- [ main] o.s.j.d.DriverManagerDataSource : Loaded JDBC driver: com.mysql.jdbc.Driver
2015-04-18 11:38:23.696 INFO ??? --- [ main] o.s.j.d.DriverManagerDataSource : Loaded JDBC driver: com.mysql.jdbc.Driver
2015-04-18 11:38:29.289 INFO ??? --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2015-04-18 11:38:29.371 INFO ??? --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2015-04-18 11:38:29.759 INFO ??? --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {4.3.8.Final}
2015-04-18 11:38:29.764 INFO ??? --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2015-04-18 11:38:29.770 INFO ??? --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
2015-04-18 11:38:30.586 INFO ??? --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
2015-04-18 11:38:30.858 INFO ??? --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2015-04-18 11:38:31.435 INFO ??? --- [ main] o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
2015-04-18 11:38:36.502 INFO ??? --- [ main] o.s.b.f.config.PropertiesFactoryBean : Loading properties file from class path resource [rest-default-messages.properties]
2015-04-18 11:38:37.111 WARN ??? --- [ main] onConfigNonEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in class path resource [com/pekam/AppConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.PlatformTransactionManager]: Factory method 'transactionManager' threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:139)
at org.springframework.boot.legacy.context.web.SpringBootContextLoaderListener.initWebApplicationContext(SpringBootContextLoaderListener.java:61)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:266)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:288)
at com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:26)
at com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:87)
at com.google.appengine.tools.development.Modules.startup(Modules.java:105)
at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:258)
at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:47)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:213)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:211)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:211)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:284)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:226)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:217)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.PlatformTransactionManager]: Factory method 'transactionManager' threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver$3.run(ConstructorResolver.java:582)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579)
... 42 common frames omitted
Caused by: java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.entityManagerFactory(<generated>)
at com.pekam.AppConfig.transactionManager(AppConfig.java:125)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.CGLIB$transactionManager$2(<generated>)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662$$FastClassBySpringCGLIB$$97c35f17.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:309)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.transactionManager(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:130)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 45 common frames omitted
2015-04-18 11:38:37.125 INFO ??? --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2015-04-18 11:38:37.139 WARN ??? --- [ main] o.s.boot.SpringApplication : Error handling failed (Error creating bean with name 'delegatingApplicationListener' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration': Initialization of bean failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry' is defined)
2015-04-18 11:38:37.154 ERROR ??? --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in class path resource [com/pekam/AppConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.PlatformTransactionManager]: Factory method 'transactionManager' threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:139)
at org.springframework.boot.legacy.context.web.SpringBootContextLoaderListener.initWebApplicationContext(SpringBootContextLoaderListener.java:61)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:266)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:288)
at com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:26)
at com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:87)
at com.google.appengine.tools.development.Modules.startup(Modules.java:105)
at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:258)
at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:47)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:213)
at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:211)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:211)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:284)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:226)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:217)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.PlatformTransactionManager]: Factory method 'transactionManager' threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver$3.run(ConstructorResolver.java:582)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579)
... 42 common frames omitted
Caused by: java.lang.ClassCastException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean$$EnhancerBySpringCGLIB$$1c05fbf5 cannot be cast to javax.persistence.EntityManagerFactory
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.entityManagerFactory(<generated>)
at com.pekam.AppConfig.transactionManager(AppConfig.java:125)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.CGLIB$transactionManager$2(<generated>)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662$$FastClassBySpringCGLIB$$97c35f17.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:309)
at com.pekam.AppConfig$$EnhancerBySpringCGLIB$$9c2ce662.transactionManager(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:130)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 45 common frames omitted
这是我的代码
package com.pekam;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaDialect;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import javax.annotation.Resource;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
@Configuration
@ComponentScan("com.pekam")
@EnableAutoConfiguration
@EnableJpaRepositories
public class AppConfig {
@Resource
Environment env;
@Bean
public DataSource MyDataSource() {
//String str = com.pekam.Settings.this.dbUser;
DriverManagerDataSource H2DataSource = new DriverManagerDataSource();
H2DataSource.setDriverClassName("org.h2.Driver");
H2DataSource.setUrl("jdbc:h2:file:h2\\db");
H2DataSource.setUsername("sa");
H2DataSource.setPassword("");
MsSqlDataSource.setDriverClassName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
DriverManagerDataSource MySqlDataSource = new DriverManagerDataSource();
MySqlDataSource.setDriverClassName("com.mysql.jdbc.Driver");
String url = null;
MySqlDataSource.setDriverClassName("com.mysql.jdbc.Driver");
url = "jdbc:mysql://localhost:3306/test";
MySqlDataSource.setUsername("pk");
MySqlDataSource.setPassword("f7ka1");
MySqlDataSource.setUrl(url);
return MySqlDataSource;
}
@Bean
public EntityManagerFactory entityManagerFactory() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setShowSql(true);
vendorAdapter.setDatabasePlatform("org.hibernate.dialect.MySQLDialect");
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setJpaVendorAdapter(vendorAdapter);
factory.setJpaDialect(new HibernateJpaDialect());
factory.setPackagesToScan("com.pekam");
factory.setDataSource(MyDataSource());
factory.afterPropertiesSet();
return factory.getObject();
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory());
return txManager;
}
}
最佳答案
我今天在将 Spring 应用程序的一部分转换为 Spring Boot 应用程序时遇到了同样的问题。问题是 Spring 一直在加载默认的 entityManagerFactory bean。
为了使用我的 entityManagerFactory bean，我必须直接返回 LocalContainerEntityManagerFactoryBean 的实例，而不是返回 LocalContainerEntityManagerFactoryBean 的 getObject():
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setShowSql(true);
vendorAdapter.setDatabasePlatform("org.hibernate.dialect.MySQLDialect");
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setJpaVendorAdapter(vendorAdapter);
factory.setJpaDialect(new HibernateJpaDialect());
factory.setPackagesToScan("com.pekam");
factory.setDataSource(MyDataSource());
factory.afterPropertiesSet();
return factory;
}
然后在 transactionManager bean 的配置中调用 entityManagerFactory().getObject():
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory().getObject());
return txManager;
}
关于GAE 上的 Spring Boot Rest App 抛出异常无法转换为 javax.persistence.EntityManagerFactory”，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29715863/
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