在Google Appengine上使用Spring Data JPA [英] Using Spring Data JPA on Google Appengine
本文介绍了在Google Appengine上使用Spring Data JPA的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图在GAE上使用Spring 3.2和Spring Data，并且在正确配置我的配置时遇到了一些麻烦。这是微不足道的，但从Spring Data文档看来，您不需要比entitymanagerfactory bean更多的东西。
这是我的配置和我在启动时遇到的异常。有人可以为Datanucleus JPA 2.0提供的异常提供解决方案吗？
pom.xml
<？xml version =1.0encoding =UTF-8？>
< project xmlns =http://maven.apache.org/POM/4.0.0xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance
xsi：schemaLocation =http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd\">
< modelVersion> 4.0.0< / modelVersion>
<包装>战争< / packaging>
< version> 1.0.0-SNAPSHOT< / version>
< groupId> com.foo< / groupId>
< artifactId>栏< / artifactId>
<属性>
< appengine.version> 1.7.5< /appengine.version>
< project.build.sourceEncoding> UTF-8< /project.build.sourceEncoding>
< slf4j.version> 1.7.2< /slf4j.version>
< datanucleus.version> 3.0.6< /datanucleus.version>
< spring.version> 3.2.1.RELEASE< /spring.version>
< spring-data.version> 1.3.0.RELEASE< /spring-data.version>
< / properties>
<依赖关系>
<！ - 编译/运行时依赖关系 - >
< dependency>
< groupId> com.google.appengine< / groupId>
< artifactId> appengine-api-1.0-sdk< / artifactId>
< version> $ {appengine.version}< / version>
< /依赖关系>
< dependency>
< groupId> javax.servlet< / groupId>
< artifactId> servlet-api< / artifactId>
< version> 2.5< / version>
< scope>提供< / scope>
< /依赖关系>
< dependency>
< groupId> jstl< / groupId>
< artifactId> jstl< / artifactId>
< version> 1.2< / version>
< /依赖关系>
<！ - Spring - >>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-core< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-web< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-webmvc< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework.data< / groupId>
< artifactId> spring-data-jpa< / artifactId>
< version> $ {spring-data.version}< / version>
< /依赖关系>
<！ - 记录相关性 - >
< dependency>
< groupId> org.slf4j< / groupId>
< artifactId> slf4j-jdk14< / artifactId>
< version> $ {slf4j.version}< / version>
< /依赖关系>
<！ - GAE的JPA 2.0 - >
< dependency>
< groupId> com.google.appengine.orm< / groupId>
< artifactId> datanucleus-appengine< / artifactId>
< version> 2.0.0< / version>
< /依赖关系>
< dependency>
< groupId> org.datanucleus< / groupId>
< artifactId> datanucleus-api-jpa< / artifactId>
< version> $ {datanucleus.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.datanucleus< / groupId>
< artifactId> datanucleus-core< / artifactId>
< version> $ {datanucleus.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.apache.geronimo.specs< / groupId>
< artifactId> geronimo-jpa_2.0_spec< / artifactId>
< version> 1.0< / version>
< /依赖关系>
<！ - Test Dependencies - >
< dependency>
< groupId> junit< / groupId>
< artifactId> junit< / artifactId>
< version> 4.10< / version>
< scope> test< / scope>
< /依赖关系>
< dependency>
< groupId> org.mockito< / groupId>
< artifactId> mockito-all< / artifactId>
< version> 1.9.0< / version>
< scope> test< / scope>
< /依赖关系>
< dependency>
< groupId> com.google.appengine< / groupId>
< artifactId> appengine-testing< / artifactId>
< version> $ {appengine.version}< / version>
< scope> test< / scope>
< /依赖关系>
< dependency>
< groupId> com.google.appengine< / groupId>
< artifactId> appengine-api-stubs< / artifactId>
< version> $ {appengine.version}< / version>
< scope> test< / scope>
< /依赖关系>
< /依赖关系>
< build>
< plugins>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< version> 2.5.1< / version>
< artifactId> maven-compiler-plugin< / artifactId>
<配置>
< source> 1.6< / source>
< target> 1.6< / target>
< / configuration>
< / plugin>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-war-plugin< / artifactId>
< version> 2.3< / version>
<配置>
< archiveClasses> true< / archiveClasses>
< webResources>
<！ - - 为了从pom中插入版本到appengine-web.xml - >
< resource>
<目录> $ {basedir} / src / main / webapp / WEB-INF< / directory>
<过滤>真实< /过滤>
< targetPath> WEB-INF< / targetPath>
< / resource>
< / webResources>
< / configuration>
< / plugin>
< plugin>
< groupId> com.google.appengine< / groupId>
< artifactId> appengine-maven-plugin< / artifactId>
< version> $ {appengine.version}< / version>
< / plugin>
< / plugins>
< / build>
< / project>
JPA配置
@Configuration
@EnableJpaRepositories（com.foo.bar.domain）
@EnableTransactionManagement
class JpaApplicationConfig {
private static最终记录器记录器=记录器
.getLogger（JpaApplicationConfig.class.getName（））;
@Bean
public EntityManagerFactory entityManagerFactory（）{
logger.info（Loading Entity Manager ...）;
返回持久性
.createEntityManagerFactory（eventual-reads-short-deadlines）;
$ b $Bean
Public PlatformTransactionManager transactionManager（）{
logger.info（Loading Transaction Manager ...）;
final JpaTransactionManager txManager = new JpaTransactionManager（）;
txManager.setEntityManagerFactory（entityManagerFactory（））;
返回txManager;
}
}
例外
[INFO] SEVERE：上下文初始化失败
[INFO] org.springframework.beans.factory.BeanCreationException：名称'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor＃0'：bean初始化失败;嵌套异常是java.lang.IllegalStateException：没有在bean工厂中发现的持久性异常转换器。无法执行异常翻译。
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:532）
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（ AbstractAutowireCapableBeanFactory.java:461）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:295）
[INFO] at org.springframework.beans.factory .support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:223）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:292）
[org] at org .bringframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:198）
[INFO] at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors（AbstractApplicationContext.java:741）
[ INFO] at org.springframework.context.support.AbstractAppl icyContext.refresh（AbstractApplicationContext.java:464）
[信息]在org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:389）
[信息]在org.springframework.web。 context.ContextLoader.initWebApplicationContext（ContextLoader.java:294）
[信息]在org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:112）
[信息]在org.mortbay。 jetty.handler.ContextHandler.startContext（ContextHandler.java:548）
[INFO] at org.mortbay.jetty.servlet.Context.startContext（Context.java:136）
[INFO] at org。
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart（ContextHandler.java:517）
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart（WebAppContext.java:467）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[INFO] at org.mortbay.jetty.handler.Han dlerWrapper.doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[INFO] at org.mortbay.jetty.handler。 HandlerWrapper.doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.jetty.Server.doStart（Server.java:224）
[INFO] at org.mortbay.component.AbstractLifeCycle。 （com.google.appengine.tools.development.JettyContainerService.startContainer（JettyContainerService.java:228）
[INFO]在com.google.appengine处启动（AbstractLifeCycle.java:50）
[INFO]。 tools.development.AbstractContainerService.startup（AbstractContainerService.java:255）
[INFO] at com.google.appengine.tools.development.AbstractServer.startup（AbstractServer.java:79）
[INFO] at com.google.appengine.tools.development.DevAppServerImpl $ Servers.startup（DevAppServerImpl.java:451）
[INFO]位于com.google.appengine.tools.development.DevAppServerImpl.start（DevAppServerImpl.java:198）
[INFO]，位于com.google.appengine.tools.developme nt.DevAppServerMain $ StartAction.apply（DevAppServerMain.java:333）
[INFO] at com.google.appengine.tools.util.Parser $ ParseResult.applyArgs（Parser.java:48）
[INFO] ]在com.google.appengine.tools.development.DevAppServerMain。< init>（DevAppServerMain.java:269）
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main（DevAppServerMain.java ：245）
[INFO]引起：java.lang.IllegalStateException：在bean工厂中找不到持久性异常转换程序。无法执行异常翻译。
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators（PersistenceExceptionTranslationInterceptor.java:142）
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor。< init>（PersistenceExceptionTranslationInterceptor .java：79）
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor。< init>（PersistenceExceptionTranslationAdvisor.java:70）
[INFO] at org.springframework.dao.annotation。在org.springframework上
[INFO]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods（AbstractAutowireCapableBeanFactory.java:1506）上的PersistenceExceptionTranslationPostProcessor.setBeanFactory（PersistenceExceptionTranslationPostProcessor.java:103）
[INFO] beans.factory.support.AbstractAutowireCapableBeanFactory.access $ 000（AbstractAutowireCapableBeanFactory.java:116）
[INFO] at org.springframework.be
[INFO] at org.springframework.beans。java.security.AccessController.doPrivileged（Native Method）
[INFO] at org.springframework.beans。
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:524）
[INFO]。 .. 30 more
[INFO]
[INFO] Mar 12，2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger警告
[信息]警告：失败上下文的启动com.google.appengine.tools.development.DevAppEngineWebAppContext@2912ee3c {/，/ home / tim / workspace-me / Dating / target / dating-1.0.0-SNAPSHOT}
[INFO] org.springframework .beans.factory.BeanCreationException：使用名称'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor＃0'创建bean时出错：初始化o f豆失败;嵌套异常是java.lang.IllegalStateException：没有在bean工厂中发现的持久性异常转换器。无法执行异常翻译。
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:532）
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（ AbstractAutowireCapableBeanFactory.java:461）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:295）
[INFO] at org.springframework.beans.factory .support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:223）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:292）
[org] at org .bringframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:198）
[INFO] at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors（AbstractApplicationContext.java:741）
[ INFO] at org.springframework.context.support.AbstractAppl icyContext.refresh（AbstractApplicationContext.java:464）
[信息]在org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:389）
[信息]在org.springframework.web。 context.ContextLoader.initWebApplicationContext（ContextLoader.java:294）
[信息]在org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:112）
[信息]在org.mortbay。 jetty.handler.ContextHandler.startContext（ContextHandler.java:548）
[INFO] at org.mortbay.jetty.servlet.Context.startContext（Context.java:136）
[INFO] at org。
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart（ContextHandler.java:517）
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart（WebAppContext.java:467）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[INFO] at org.mortbay.jetty.handler.Han dlerWrapper.doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[INFO] at org.mortbay.jetty.handler。 HandlerWrapper.doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.jetty.Server.doStart（Server.java:224）
[INFO] at org.mortbay.component.AbstractLifeCycle。 （com.google.appengine.tools.development.JettyContainerService.startContainer（JettyContainerService.java:228）
[INFO]在com.google.appengine处启动（AbstractLifeCycle.java:50）
[INFO]。 tools.development.AbstractContainerService.startup（AbstractContainerService.java:255）
[INFO] at com.google.appengine.tools.development.AbstractServer.startup（AbstractServer.java:79）
[INFO] at com.google.appengine.tools.development.DevAppServerImpl $ Servers.startup（DevAppServerImpl.java:451）
[INFO]位于com.google.appengine.tools.development.DevAppServerImpl.start（DevAppServerImpl.java:198）
[INFO]，位于com.google.appengine.tools.developme nt.DevAppServerMain $ StartAction.apply（DevAppServerMain.java:333）
[INFO] at com.google.appengine.tools.util.Parser $ ParseResult.applyArgs（Parser.java:48）
[INFO] ]在com.google.appengine.tools.development.DevAppServerMain。< init>（DevAppServerMain.java:269）
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main（DevAppServerMain.java ：245）
[INFO]引起：java.lang.IllegalStateException：在bean工厂中找不到持久性异常转换程序。无法执行异常翻译。
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators（PersistenceExceptionTranslationInterceptor.java:142）
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor。< init>（PersistenceExceptionTranslationInterceptor .java：79）
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor。< init>（PersistenceExceptionTranslationAdvisor.java:70）
[INFO] at org.springframework.dao.annotation。在org.springframework上
[INFO]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods（AbstractAutowireCapableBeanFactory.java:1506）上的PersistenceExceptionTranslationPostProcessor.setBeanFactory（PersistenceExceptionTranslationPostProcessor.java:103）
[INFO] beans.factory.support.AbstractAutowireCapableBeanFactory.access $ 000（AbstractAutowireCapableBeanFactory.java:116）
[INFO] at org.springframework.be
[INFO] at org.springframework.beans。java.security.AccessController.doPrivileged（Native Method）
[INFO] at org.springframework.beans。
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:524）
[INFO]。 .. 30 more
[INFO]
[INFO] Mar 12，2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO]警告：嵌套org.springframework.beans.factory.BeanCreationException中的错误：创建名为'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor＃0'的bean时出错：Bean初始化失败;嵌套异常是java.lang.IllegalStateException：没有在bean工厂中发现的持久性异常转换器。无法执行异常转换。：
[INFO] java.lang.IllegalStateException：在bean工厂中找不到持久性异常转换程序。无法执行异常翻译。
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators（PersistenceExceptionTranslationInterceptor.java:142）
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor。< init>（PersistenceExceptionTranslationInterceptor .java：79）
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor。< init>（PersistenceExceptionTranslationAdvisor.java:70）
[INFO] at org.springframework.dao.annotation。在org.springframework上
[INFO]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods（AbstractAutowireCapableBeanFactory.java:1506）上的PersistenceExceptionTranslationPostProcessor.setBeanFactory（PersistenceExceptionTranslationPostProcessor.java:103）
[INFO] beans.factory.support.AbstractAutowireCapableBeanFactory.access $ 000（AbstractAutowireCapableBeanFactory.java:116）
[INFO] at org.springframework.be
[INFO] at org.springframework.beans。java.security.AccessController.doPrivileged（Native Method）
[INFO] at org.springframework.beans。
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:524）
[INFO] at atg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:524）
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:461）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:295）
[INFO] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:223）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFacto ry.java:292）
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:198）
[INFO] at org.springframework.context.support。 AbstractApplicationContext.registerBeanPostProcessor（AbstractApplicationContext.java:741）
[INFO] at org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:464）
[INFO] at org.springframework.web。
[INFO] at org.springframework.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:294）
[INFO] at org.springframework。 web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:112）
[INFO] at org.mortbay.jetty.handler.ContextHandler.startContext（ContextHandler.java:548）
[INFO] at org。 mortbay.jetty.servlet.Context.startContext（Context.java:136）
[INFO] at org.mortbay.jetty.webapp.WebAppContext.startContext（
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart（ContextHandler.java:517）
[INFO] at org.mortbay.jetty.webapp.WebAppContext。 doStart（WebAppContext.java:467）
[信息]在org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[信息]在org.mortbay.jetty.handler.HandlerWrapper。 doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）
[INFO] at org.mortbay.jetty.handler.HandlerWrapper。 doStart（HandlerWrapper.java:130）
[INFO] at org.mortbay.jetty.Server.doStart（Server.java:224）
[INFO] at org.mortbay.component.AbstractLifeCycle.start（ AbstractLifeCycle.java:50）
[com.google.appengine.tools.development.JettyContainerService.startContainer（JettyContainerService.java:228）上的[INFO]
[com.google.appengine.tools上的INFO]。 development.AbstractContainerService.startup（AbstractContainerService.java:255）
[com.google.appengine.t [INFO]） ools.development.AbstractServer.startup（AbstractServer.java:79）
[INFO]位于com.google.appengine.tools.development.DevAppServerImpl $ Servers.startup（DevAppServerImpl.java:451）
[INFO ]在com.google.appengine.tools.development.DevAppServerImpl.start（DevAppServerImpl.java:198）
[INFO]的com.google.appengine.tools.development.DevAppServerMain $ StartAction.apply（DevAppServerMain.java： 333）
[INFO]，位于com.google.appengine.tools.util.Parser $ ParseResult.applyArgs（Parser.java:48）
[INFO]，位于com.google.appengine.tools.development。 DevAppServerMain。< init>（DevAppServerMain.java:269）
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main（DevAppServerMain.java:245）
[INFO]
[INFO] Mar 12，2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger debug
<在独立环境中，我们推荐使用Spring支持类来设置 EntityManagerFactory 。因此，如果将配置更改为以下内容，则不需要额外的bean声明：
@Bean
public AbstractEntityManagerFactoryBean entityManagerFactory（）{
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean（）;
factory.setPersistenceUnitName（eventual-reads-short-deadlines）;
退货工厂;
$ b $Bean
public PlatformTransactionManager transactionManager（）{
JpaTransactionManager txManager = new JpaTransactionManager（）;
txManager.setEntityManagerFactory（entityManagerFactory（）。getObject（））;
返回txManager;
}
关键部分是制作 FactoryBean 作为Spring bean实现的可用实现 PersistenceExceptionTranslator 。
I'm trying to use Spring 3.2 and Spring Data on GAE and having some trouble getting my configuration right. It's minimal but from the Spring Data documentation it seems like you don't need much more than just the entitymanagerfactory bean.
Here's my configuration and the exception I am getting at startup. Can someone please provide a solution for the exception I am receiving with Datanucleus JPA 2.0?
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<packaging>war</packaging>
<version>1.0.0-SNAPSHOT</version>
<groupId>com.foo</groupId>
<artifactId>bar</artifactId>
<properties>
<appengine.version>1.7.5</appengine.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<slf4j.version>1.7.2</slf4j.version>
<datanucleus.version>3.0.6</datanucleus.version>
<spring.version>3.2.1.RELEASE</spring.version>
<spring-data.version>1.3.0.RELEASE</spring-data.version>
</properties>
<dependencies>
<!-- Compile/runtime dependencies -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>${appengine.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>${spring-data.version}</version>
</dependency>
<!-- Logging dependencies -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- JPA 2.0 for GAE -->
<dependency>
<groupId>com.google.appengine.orm</groupId>
<artifactId>datanucleus-appengine</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-api-jpa</artifactId>
<version>${datanucleus.version}</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>${datanucleus.version}</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jpa_2.0_spec</artifactId>
<version>1.0</version>
</dependency>
<!-- Test Dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.9.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${appengine.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${appengine.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<version>2.5.1</version>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<archiveClasses>true</archiveClasses>
<webResources>
<!-- in order to interpolate version from pom into appengine-web.xml -->
<resource>
<directory>${basedir}/src/main/webapp/WEB-INF</directory>
<filtering>true</filtering>
<targetPath>WEB-INF</targetPath>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>${appengine.version}</version>
</plugin>
</plugins>
</build>
</project>
JPA Configuration
@Configuration
@EnableJpaRepositories("com.foo.bar.domain")
@EnableTransactionManagement
class JpaApplicationConfig {
private static final Logger logger = Logger
.getLogger(JpaApplicationConfig.class.getName());
@Bean
public EntityManagerFactory entityManagerFactory() {
logger.info("Loading Entity Manager...");
return Persistence
.createEntityManagerFactory("eventual-reads-short-deadlines");
}
@Bean
public PlatformTransactionManager transactionManager() {
logger.info("Loading Transaction Manager...");
final JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory());
return txManager;
}
}
Exception
[INFO] SEVERE: Context initialization failed
[INFO] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:532)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
[INFO] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
[INFO] at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741)
[INFO] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
[INFO] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
[INFO] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
[INFO] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
[INFO] at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
[INFO] at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.jetty.Server.doStart(Server.java:224)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:228)
[INFO] at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:255)
[INFO] at com.google.appengine.tools.development.AbstractServer.startup(AbstractServer.java:79)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl$Servers.startup(DevAppServerImpl.java:451)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:198)
[INFO] at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:333)
[INFO] at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:269)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:245)
[INFO] Caused by: java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:142)
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:103)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1506)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.access$000(AbstractAutowireCapableBeanFactory.java:116)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$5.run(AbstractAutowireCapableBeanFactory.java:1468)
[INFO] at java.security.AccessController.doPrivileged(Native Method)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1466)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
[INFO] ... 30 more
[INFO]
[INFO] Mar 12, 2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: Failed startup of context com.google.appengine.tools.development.DevAppEngineWebAppContext@2912ee3c{/,/home/tim/workspace-me/Dating/target/dating-1.0.0-SNAPSHOT}
[INFO] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:532)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
[INFO] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
[INFO] at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741)
[INFO] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
[INFO] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
[INFO] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
[INFO] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
[INFO] at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
[INFO] at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.jetty.Server.doStart(Server.java:224)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:228)
[INFO] at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:255)
[INFO] at com.google.appengine.tools.development.AbstractServer.startup(AbstractServer.java:79)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl$Servers.startup(DevAppServerImpl.java:451)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:198)
[INFO] at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:333)
[INFO] at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:269)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:245)
[INFO] Caused by: java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:142)
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:103)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1506)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.access$000(AbstractAutowireCapableBeanFactory.java:116)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$5.run(AbstractAutowireCapableBeanFactory.java:1468)
[INFO] at java.security.AccessController.doPrivileged(Native Method)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1466)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
[INFO] ... 30 more
[INFO]
[INFO] Mar 12, 2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: Nested in org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.:
[INFO] java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation.
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:142)
[INFO] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70)
[INFO] at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:103)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1506)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.access$000(AbstractAutowireCapableBeanFactory.java:116)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$5.run(AbstractAutowireCapableBeanFactory.java:1468)
[INFO] at java.security.AccessController.doPrivileged(Native Method)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1466)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
[INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
[INFO] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
[INFO] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
[INFO] at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:741)
[INFO] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
[INFO] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
[INFO] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
[INFO] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
[INFO] at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
[INFO] at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.jetty.Server.doStart(Server.java:224)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:228)
[INFO] at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:255)
[INFO] at com.google.appengine.tools.development.AbstractServer.startup(AbstractServer.java:79)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl$Servers.startup(DevAppServerImpl.java:451)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:198)
[INFO] at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:333)
[INFO] at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:269)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:245)
[INFO]
[INFO] Mar 12, 2013 11:10:49 AM com.google.apphosting.utils.jetty.JettyLogger debug
解决方案
In standalone environments we recommend to use the Spring support classes to set up a EntityManagerFactory. So if you change your configuration to the following the additional bean declaration should not be necessary:
@Bean
public AbstractEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setPersistenceUnitName("eventual-reads-short-deadlines");
return factory;
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory().getObject());
return txManager;
}
The crucial part is making the FactoryBean implementation available as Spring bean as it implements PersistenceExceptionTranslator.
这篇关于在Google Appengine上使用Spring Data JPA的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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