Not must be hibernate.properties or hibernate.cfg.xml

最新推荐文章于 2025-09-13 19:01:06 发布

老和与宇华霖

最新推荐文章于 2025-09-13 19:01:06 发布

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分类专栏： STRUTS SPRING HIBERNATE 文章标签： Hibernate XML JDBC Cache log4j

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本文提出了一种通过前缀应用名称的方法来唯一标识jdbc.properties、log4j.properties和hibernate.properties等共享文件名，从而解决在部署多个应用时因文件名相同导致的覆盖问题。具体步骤包括修改Web.xml和applicationContext.xml文件，同时引入额外的hibernate.properties文件进行配置。

Sometimes, Custom have externalized the location of their property files to a location outside of the WARs, so their settings are not wiped out by code updates. The problem is that we have a number of property files that share the same name.

So that would like to propose that we adopt a unique naming construct for the following files:

* jdbc.properties
* log4j.properties
* hibernate.properties

For each application, we should prefix each of these files with an identifier that creates a unique name so that the files can be located in the same directory without overlaying each other. here are my suggestions for prefixing:

* applicationName-jdbc.properties

* applicationName-log4j.properties
* applicationName-hibernate.properties

Step1:Modfiy Web.xml

Old web.xml

<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>classpath:log4j.properties</param-value>
	</context-param>

New web.xml

<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>classpath:applicationName-log4j.properties</param-value>
	</context-param>

Step2:Modify applicationContext.xml

Old applicationContext.xml

<!-- others -->
<context:property-placeholder location="classpath:jdbc.properties"/>    

<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource"
		p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.url}"
		p:username="${jdbc.username}" p:password="${jdbc.password}" />

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

		<property name="dataSource" ref="dataSource" />

		<property name="annotatedClasses">
			<list>
				<!-- others -->
			</list>
		</property>

<!-- others -->

New applicationContext.xml

<!--  others -->
<context:property-placeholder location="classpath:applicationName-jdbc.properties"/>    
<context:property-placeholder location="classpath:applicationName-hibernate.properties"/>    
<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource"
		p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.url}"
		p:username="${jdbc.username}" p:password="${jdbc.password}" />

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

		<property name="dataSource" ref="dataSource" />

		<property name="annotatedClasses">
			<list>
				<!-- others -->
			</list>
		</property>

        <!-- Add Hibernate property -->
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=${hibernate.dialect}
                <!--hibernate.hbm2ddl.auto=${hibernate.dialect} -->
                hibernate.cache.provider_class=${hibernate.cache.provider_class}
                hibernate.cache.use_query_cache=${hibernate.cache.use_query_cache}
                hibernate.generate_statistics=${hibernate.generate_statistics}
                hibernate.show_sql=${hibernate.show_sql}
                hibernate.cache.use_structured_entries=${hibernate.cache.use_structured_entries}
            </value>
        </property>
        <!-- End Hibernate property -->
	</bean>
<!-- others -->

Additional hibernate.properties

## dialect
#hibernate.dialect =org.hibernate.dialect.OracleDialect
hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
#hibernate.dialect = org.hibernate.dialect.SQLServerDialect

## cache
hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
hibernate.cache.use_query_cache=true
hibernate.cache.use_structured_entries=true

#hibernate.hbm2ddl.auto = update
hibernate.generate_statistics=true
hibernate.show_sql =false