web容器中实例化spring相关配置说明

web容器中实例化spring相关配置说明：

要想在web容器实例化时加载spring容器，web.xml文件中配置如下：

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:bean.xml</param-value>
</context-param>
<!-- 对Spring容器进行实例化的监听器s -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

说明：

默认情况下spring实例化时加载的是/WEB-INF/下的applicationContext.xml

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

<param-value>classpath:bean.xml</param-value>指定了spring需要加载的文件（类路径下的bean.xml文件）

如果配置文件有多个配置如下：

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath*:conf/spring/applicationContext_core*.xml,
classpath*:conf/spring/applicationContext_dict*.xml,
classpath*:conf/spring/applicationContext_hibernate.xml,
classpath*:conf/spring/applicationContext_staff*.xml,
classpath*:conf/spring/applicationContext_security.xml
classpath*:conf/spring/applicationContext_modules*.xml
classpath*:conf/spring/applicationContext_cti*.xml
classpath*:conf/spring/applicationContext_apm*.xml
</param-value>
</context-param>

或者（使用空格隔开，如下配置：）

<CONTEXT-PARAM>
<PARAM-NAME>contextConfigLocation</PARAM-NAME>
<PARAM-VALUE>
applicationContext-database.xml applicationContext.xml
</PARAM-VALUE>
</CONTEXT-PARAM>