Spring with JPA not persisting objects

我已經閱讀了很多教程，用JPA配置spring。我使用的是本地MySQL數據庫和我有這個背景：Spring with JPA not persisting objects

<?xml version="1.0" encoding="UTF-8" standalone="no"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="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"> 

    <!-- DataSource Setup --> 
    <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/test" /> 
     <property name="username" value="vitornobrega" /> 
     <property name="password" value="" /> 
    </bean> 

    <!-- Entity Manager Factory --> 
    <bean id="entityManagerFactory" 
     class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="packagesToScan" value="com.vitornobrega.myapp.entities" /> 
     <property name="jpaVendorAdapter"> 
      <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 
       <property name="showSql" value="true" /> 
       <property name="generateDdl" value="true" /> 
       <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" /> 
      </bean> 
     </property> 
    </bean> 

    <bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 
     <property name="entityManagerFactory" ref="entityManagerFactory" /> 
    </bean> 
    <tx:annotation-driven transaction-manager="txManager" /> 
</beans>

我有JUnit的測試來測試我DAO和工作良好，但是當我試圖堅持實體與此配置，我從來沒有在休眠記錄插入命令，但在測試的情況下，我看到它。如果我試圖做一個entitymanager.flush我得到一個異常，因爲任何事務正在運行。

我應該改變什麼可以堅持我的本地數據庫與此實體？謝謝

來源

2013-02-27 Vítor Nóbrega

你能分享請你的堆棧跟蹤，看看錯誤是什麼？所以我們可以更好地分析它並幫助你。 – 2013-02-27 23:36:08