项目重建后 Hibernate H2 数据库锁定

Question

我正在设置 Spring 休眠 H2 应用程序。当服务器启动时一切正常，但在更新后（在不重新启动 Tomcat 的情况下在 eclipse 中重建项目）我收到以下错误消息，指出无法访问数据库文件。

错误信息：

java.lang.IllegalStateException: The file is locked: nio:/home/bob/dataStore.mv.db [1.4.187/7]

java.nio.channels.OverlappingFileLockException

org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Database may be already in use:

谷歌搜索此错误后，我尝试将 File_LOCK=NO 和 DB_CLOSE_ON_EXIT=TRUE 添加到 URL 但没有成功。

Context.xml 文件

<context:annotation-config />
    <context:component-scan base-package="com" />

    <mvc:annotation-driven />

    <mvc:resources mapping="/resources/**" location="/resources/" />


    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="org.h2.Driver" />
<!--       <property name="url" value="jdbc:h2:tcp://localhost/~/dataStore;FILE_LOCK=NO;DB_CLOSE_ON_EXIT=TRUE" /> -->
        <property name="url" value="jdbc:h2:file:~/dataStore;FILE_LOCK=NO;DB_CLOSE_ON_EXIT=TRUE;MVCC=TRUE" />

        <property name="username" value="" />
        <property name="password" value="" />
    </bean>

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="com.entities" />
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.enable_lazy_load_no_trans">true</prop>
                <prop key="format_sql">true</prop>
                <prop key="use_sql_comments">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager" />

    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

我该怎么做才能避免每次重建项目时都锁定数据库。

此外，每次更新数据库后，eclipse 都会重建应用程序。我该如何阻止它？

Answer 1

如果需要创建多个连接，则需要使用以下代码：

<property name="javax.persistence.jdbc.url" value="jdbc:h2:tcp://localhost/C:\Database\Data\production;"/>

Answer 2

尝试 DB_CLOSE_ON_EXIT=FALSE，从 Spring docs

If, for whatever reason, you do configure the connection URL for an embedded database, care should be taken to ensure that the database’s automatic shutdown is disabled. If you’re using H2 you should use DB_CLOSE_ON_EXIT=FALSE to do so.

项目重建后 Hibernate H2 数据库锁定

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java

spring

hibernate

h2

tomcat7