把Spring和Hibernate的配置文件统一配置到一个目录里

为了项目文件结构清晰和统一管理，我把Spring的配置文件统一放到WEB-INF/conf/spring目录里 把Hibernate的配置文件统一放到WEB-INF/conf/hibernate目录里.

这里需要配置web.xml文件


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




<web-app version="2.4"


xmlns="http://java.sun.com/xml/ns/j2ee"


xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"


xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee

http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >




<context-param>


<param-name>contextConfigLocation</param-name>


<param-value>/WEB-INF/conf/spring/applicationContext.xml</param-value>


</context-param>






<!-- 配置spring,不能用listener,版本问题 -->


<servlet>


<servlet-name>SpringContextServlet</servlet-name>


<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>


<load-on-startup>1</load-on-startup>


</servlet>




<servlet>


<servlet-name>springapp</servlet-name>


<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>


<init-param>


<param-name>contextConfigLocation</param-name>


<param-value>/WEB-INF/conf/spring/springapp-servlet.xml</param-value>


</init-param>


<load-on-startup>2</load-on-startup>


</servlet>




......




</web-app>

可以看到,需要加入contextConfigLocation参数,用它指定applicationContext.xml的位置.

如果要是用Spring-MVC,则需要在org.springframework.web.servlet.DispatcherServlet里指定contextConfigLocation. 如果有多个servlet文件则用逗号分隔.

applicationContext.xml里的SessionFactory:


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


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


<property name="mappingDirectoryLocations">


<list>


<value>/WEB-INF/conf/hibernate</value>


</list>


</property>


<property name="hibernateProperties">


<props>


<prop key="hibernate.dialect">


org.hibernate.dialect.Oracle9Dialect


</prop>


<prop key="hibernate.show_sql">true</prop>


<prop key="hibernate.generate_statistics">true</prop>


<prop key="hibernate.hbm2ddl.auto">update</prop>


</props>


</property>


</bean>

对于hibernate,在spring的applicationContext.xml的sessionFactory里要添加mappingDirectoryLocations指定hibernate的map文件目录.