Spring configuration file

The spring profile is the core of the project that integrates the spring framework, where the engine starts, what is done in the middle, and a little talk about its execution process.

The container first loads the Web. xml

Followed by Applicationcontext.xml's registration in Web. xml

One way is to join Contextloaderservlet, the servlet.

 <Context-param>            <Param-name>Contextconfiglocation</Param-name>            <Param-value>/web-inf/applicationcontext.xml</Param-value>        </Context-param>         <servlet>            <Servlet-name>Context</Servlet-name>            <Servlet-class>Org.springframework.web.context.ContextLoaderServlet</Servlet-class>           <Load-on-startup>0</Load-on-startup>       </servlet>  

Another is to add contextloaderlistener this listener

<Context-param>       <Param-name>Contextconfiglocation</Param-name>       <Param-value>/web-inf/applicationcontext.xml</Param-value>   </Context-param>      <Listener>       <Listener-class>Org.springframework.web.context.ContextLoaderListener</Listener-class>   </Listener>  

Both Contextloaderservlet and Contextloaderlistener are an object that creates Contextloader first. It then calls its Initwebapplicationcontex method to initialize the Webapplicationcontext to obtain an object;

Spring loads multiple configuration files in Web. xml

<Context-param>          <Param-name>Contextconfiglocation</Param-name>          <Param-value>Classpath*:spring/*.xml</Param-value>  </Context-param>    <servlet>          <Servlet-name>Springcontextservlet</Servlet-name>          <Servlet-class>Org.springframework.web.context.ContextLoaderServlet</Servlet-class>         <Load-on-startup>3</Load-on-startup> </servlet>

Article derived from: http://www.cnblogs.com/mabaishui/archive/2010/07/14/1777233.html

Spring configuration file