We can break struts.xml file into multiple small files. At runtime there can be only one struts.xml for an application so other files have to be included in the default struts.xml file.
Syntax:
<struts> //Other attributes <include file="strutsfile1.xml"/> <include file="strutsfile2.xml"/> //Other attributes </struts> |
Example:
login.jsp
<%@ taglib uri="/struts-tags" prefix="s"%> <html> <head> <title>Struts 2 Multiple Struts configuration files example</title> </head> <body> <h3>This is a Multiple Struts configuration files example.</h3> <h4>For Admin page <a href="adminUser" >click here</a>.</h4> <h4>For User page <a href="normalUser" >click here</a>.</h4> </body> </html> |
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.ng. filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> </web-app> |
struts.xml
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="user" extends="struts-default"> </package> <include file="struts-admin.xml"></include> <include file="struts-user.xml"></include> </struts> |
struts-admin.xml
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="adminUser" extends="struts-default"> <action name="adminUser" class="com.w3spoint.action.AdminUser"> <result name="success">/admin.jsp</result> </action> </package> </struts> |
struts-user.xml
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="normalser" extends="struts-default"> <action name="normalUser" class="com.w3spoint.action.NormalUser"> <result name="success">/user.jsp</result> </action> </package> </struts> |
AdminUser.java
/** * This class is used as an action class for Admin User. * @author w3spoint */ public class AdminUser{ //data member private String message; //business logic public String execute(){ setMessage("Hello Admin."); return "success"; } //getter setters public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } } |
NormalUser.java
/** * This class is used as an action class for normal User. * @author w3spoint */ public class NormalUser{ //data member private String message; //business logic public String execute(){ setMessage("Hello user."); return "success"; } //getter setters public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } } |
admin.jsp
<%@ taglib uri="/struts-tags" prefix="s"%> <html> <head> <title>Struts 2 Multiple Struts configuration files example</title> </head> <body> <h3>This is a Multiple Struts configuration files example.</h3> <s:property value="message" /> </body> </html> |
user.jsp
<%@ taglib uri="/struts-tags" prefix="s"%> <html> <head> <title>Struts 2 Multiple Struts configuration files example</title> </head> <body> <h3>This is a Multiple Struts configuration files example.</h3> <s:property value="message" /> </body> </html> |
Output:
If admin page link is clicked. 
If user page link is clicked. 
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