問題、取得実行時例外

Question

私はを休止状態を使用してMySQLデータベースへの私のJavaオブジェクトをマップしようとしていますが、私は次の例外を取得しています

Exception in thread "main" org.springframework.dao.InvalidDataAccessResourceUsageException: could not retrieve snapshot: [hibernate.Employee#125]; SQL [select employee_.Id, employee_.version as version0_, employee_.Name as Name0_, employee_.Age as Age0_, employee_.Salary as Salary0_ from Employee employee_ where employee_.Id=?]; nested exception is org.hibernate.exception.SQLGrammarException: could not retrieve snapshot: [hibernate.Employee#125] 
    at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:629) 
    at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412) 
    at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411) 
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) 
    at hibernate.EmployeeDao.saveOrUpdate(EmployeeDao.java:41) 
    at hibernate.SpringHibernateTest.main(SpringHibernateTest.java:24) 
Caused by: org.hibernate.exception.SQLGrammarException: could not retrieve snapshot: [hibernate.Employee#125] 
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92) 
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) 
    at org.hibernate.persister.entity.AbstractEntityPersister.getDatabaseSnapshot(AbstractEntityPersister.java:1137) 
    at org.hibernate.engine.StatefulPersistenceContext.getDatabaseSnapshot(StatefulPersistenceContext.java:292) 
    at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:211) 
    at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:531) 
    at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:103) 
    at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) 
    at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685) 
    at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677) 
    at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.orm.hibernate3.HibernateTemplate$CloseSuppressingInvocationHandler.invoke(HibernateTemplate.java:1282) 
    at $Proxy0.saveOrUpdate(Unknown Source) 
    at hibernate.EmployeeDao$2.doInHibernate(EmployeeDao.java:37) 

いくつかのいずれかがエラーの解決に私を助けてくださいすることができ、私はhibernate.hbm2ddl.auto =ここに更新は私の春-hibernate.xmlファイルです

<?xml version="1.0" encoding="UTF-8"?> 

<beans xmlns="http://www.springframework.org/schema/beans" 
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-2.0.xsd"> 

<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" > 
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/> 
    <property name="url" value="jdbc:mysql://localhost/subhash"/> 
    <property name="username" value="root"/> 
    <property name="password" value="pass"/> 
</bean> 
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 
    <property name="dataSource" ref="myDataSource"/> 
    <property name="mappingResources"> 
     <list> 
      <value>employee.hbm.xml</value> 
     </list> 
    </property> 
    <!-- <property name="hibernateProperties"> 
     <value>hibernate.dialect=org.hibernate.dialect.HSQLDialect</value> 
    </property> --> 
    <property name="hibernateProperties"> 
     <props> 
     <prop key="hibernate.dialect"> org.hibernate.dialect.HSQLDialect</prop> 
     <prop key="hibernate.show_sql">true</prop> 
     <prop key="hibernate.hbm2ddl.auto">update</prop> 
     </props> 
    </property> 
</bean> 
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"> 
    <property name="sessionFactory"> 
     <ref bean="mySessionFactory"/> 
    </property> 
</bean> 
<bean id="employeeDao" class="hibernate.EmployeeDao"> 
    <property name="hibernateTemplate"> 
     <ref bean="hibernateTemplate"/>  
    </property> 
</bean> 
</beans> 

を使用している

Answer 1

は、次の解決策を試してください

• 溶液＃1

  "作成" するために、構成プロパティ "hibernate.hbm2ddl.autoを" 冬眠変更してみてください。

• ソリューション＃2

  グラントの挿入/更新/ Employeeテーブルの上に選択/削除。

GRANT SELECT、INSERT、UPDATEは、あなたがオブジェクトを保存HOW TO "USER_NAME"