The Web Application Deployment Descriptor in Struts Framework
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The Web Application Deployment Descriptor in Struts Framework is important part because The Struts-config.xml file location is specified by the config init parameter in web.xml file.
This web application gets a request with "/login.do. LoginAction class will be invoked.The web.xml file maps request that end in *.do to the Struts ActionServlet. Struts ActionServlet will invoke our action based on the path attribute of the action mapping. The ActionServlet will handle all requests that end in *.do.
WEb.xml file contain <load-on-startup> sub element that causes the ActionServlet to be loaded when the application is started.web.xml<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>3</param-value> </init-param> <init-param> <param-name>detail</param-name> <param-value>3</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
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