Analysis of spring-related configuration instantiation in web containers, webspring

Analysis of spring-related configuration instantiation in web containers, webspring

This article briefly introduces the configuration of instantiating spring in web containers. Next, let's take a look at the specific content.

Configuration instructions for instantiating spring in web containers:

To load the spring container when the web container is instantiated, configure the following in the web. xml file:

<Context-param> <param-name> contextConfigLocation </param-name> <param-value> classpath: bean. xml </param-value> </context-param> <! -- Instantiate the listener s for the Spring container --> <listener-class> org. springframework. web. context. ContextLoaderListener </listener-class> </listener>

Note:

By default, the applicationContext. xml under/WEB-INF/is loaded during spring instantiation.

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

<Param-value> classpath: bean. xml </param-value> specifies the file to be loaded by spring (the bean. xml file under the class path)

If the configuration file has multiple configurations:

  <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>

Or (use spaces to separate them, as shown below :)

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

Summary

The above is all about parsing spring-related configuration instantiation in web containers. I hope it will be helpful to you. Interested friends can continue to refer to this site:

《Code explanation of Spring bean instantiation Method"

《Spring instance factory method and static factory Method Instance code"

《Differences Between Spring Singleton Bean and Singleton Mode"

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