将弹簧项目导入另一个弹簧项目

Question

我在eclipse中开发了一个Spring JPA项目，它访问存储在mysql服务器中的数据。现在我需要在Spring @ MVC项目中导入这个项目。所以

1. 我在JPA项目的构建路径配置导出Maven依赖
2. 我添加项目到Tomcat引导类路径，
3. 我加入了JPA/Spring项目到类路径我的Spring @MVC项目
4. 我还将jpa应用程序上下文添加到MVC项目的根上下文中。

导入背景：

<import resource="classpath:/META-INF/spring/app-context.xml"/> 

。但是当我在tomcat上启动项目时出现错误。看来我需要将相同的JPA项目库导入到MVC项目中。以下是错误日志：

GRAVE: Excepción enviando evento inicializado de contexto a instancia de escuchador de 
clase org.springframework.web.context.ContextLoaderListener 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [META-INF/spring/app-context.xml]: Initialization of bean failed; nested exception is java.lang.IllegalStateException: No persistence exception translators found in bean factory. Cannot perform exception translation. 
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor] for bean with name 'org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor#0' defined in class path resource [META-INF/spring/app-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor 
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean] for bean with name 'entityManagerFactory' defined in class path resource [META-INF/spring/app-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean 
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.orm.jpa.JpaTransactionManager] for bean with name 'transactionManager' defined in class path resource [META-INF/spring/app-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.orm.jpa.JpaTransactionManager 

这里是我的根上下文： http://www.springframework.org/schema/beans/spring-beans-3.0.xsd“>

<import resource="classpath:/META-INF/spring/app-context.xml"/> 

    <!-- 
    <import resource="classpath:/META-INF/spring/app-context.xml"/> 
    --> 
    <!-- Root Context: defines shared resources visible to all other web components --> 

</beans> 

这里是JPA项目的我的应用程序上下文：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd 
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 

    <description>Example configuration to get you started.</description> 

    <!-- Generic --> 
    <context:annotation-config /> 
    <tx:annotation-driven transaction-manager="transactionManager" /> 

    <!-- JPA --> 

    <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" /> 
    <tx:annotation-driven /> 
    <bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/> 
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="jpaVendorAdapter"> 
      <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 
       <property name="showSql" value="true" /> <!-- Prints used SQL to stdout --> 
       <property name="generateDdl" value="true" /> <!-- Generates tables. --> 
       <property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" /> 
      </bean> 
     </property> 
    </bean> 
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="com.mysql.jdbc.Driver"/> 
     <property name="url" value="jdbc:mysql://localhost:3306/windydb"/> 
     <property name="username" value="windyuser"/> 
     <property name="password" value="maverick1984"/> 
    </bean> 
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 
     <property name="entityManagerFactory" ref="entityManagerFactory"/> 
     <property name="dataSource" ref="dataSource"/> 
    </bean> 
    <context:component-scan base-package="com.windy.spring" /> 

</beans> 

在此先感谢您的帮助

达尼洛

Answer 1

你已经为你的事务管理器：

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 
    <property name="entityManagerFactory" ref="entityManagerFactory"/> 
    <property name="dataSource" ref="dataSource"/> 
</bean> 

但Tomcat的找不到类org.springframework.orm.jpa.JpaTransactionManager。确保它在你的webapp的类路径中。