Spring: some basic configurations-you may only be able to understand them.

 

Web. xml

  <  Context-Param  >  
  <  Param-name  >  Contextconfiglocation  </  Param-name  >  
 <  Param-Value  >  /WEB-INF/daocontext. xml/WEB-INF/applicationcontext. xml  </  Param-Value  >  
  </  Context-Param  >  

  <  Listener  >  
 <  Listener-class  >  Org. springframework. Web. Context. contextloaderlistener  </  Listener-class  >  
  </  Listener  >  

  <! -- Or use the contextloaderservlet instead of the above listener
<Servlet>
<Servlet-Name> context </servlet-Name>
<Servlet-class> org. springframework. Web. Context. contextloaderservlet </servlet-class>
<Load-on-startup> 1 </load-on-startup>
</Servlet>
  --> 

 

The listener first checksContextconfiglocationParameter. If it does not exist, it uses/WEB-INF/applicationcontext. xmlAs the default value. If it already exists, it will use a separator (comma, colon, or space) to split the string into the path of the upper and lower file locations for the application. Supports the ant-style path mode, such/WEB-INF/* context. xml(All files ending with "context. xml" under the WEB-INF folder ). Or/WEB-INF/**/* context. xml(The WEB-INF folder and the file ending with "context. xml" under the subfolders ).

ContextloaderservletSameContextloaderlistenerSame use'Textconfiglocation'Parameters.

 

Resource strings

prefix	example	description
classpath:	classpath: COM/MyApp/config. xml	load from classpath.
file:	file:/data/config. xml	load as URL from the file system.
HTTP:	http: // myserver/logo.png	load as URL .
(none)	/data/config. xml	judge by applicationcontext .