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After the ZK libraries have been deployed to a Web application, we have to configure web.xml to install the required Servlets, listener and mapping: DHtmlLayoutServlet, DHtmlUpdateServlet, and HttpSessionListener.

Here is the sample web.xml for servers that support Servlet 2.4 and later.

Notice that if you are using Servlet 3, you generally don't need to set up web.xml unless you'd like to configure it different.
Notice that the ZK demo distribution has several web.xml files under the MyApp/WebContent/WEB-INF directory: web.servlet-3.xml (for servers supporting only Servlet 3), web.servlet-2.4.xml (for servers supporting Servlet 2.4 or later), and web.servlet-2.3.xml (for servers supporting only Servlet 2.3). You could copy one of them instead of creating from scratch.
<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 

	<description><![CDATA[My ZK Application]]></description>
	<display-name>MyApp</display-name>

	<listener>
		<description>ZK listener for session cleanup</description>
		<listener-class>org.zkoss.zk.ui.http.HttpSessionListener</listener-class>
	</listener>
	<servlet>
		<description>ZK loader for ZUML pages</description>
		<servlet-name>zkLoader</servlet-name>
		<servlet-class>org.zkoss.zk.ui.http.DHtmlLayoutServlet</servlet-class>

		<init-param>
			<param-name>update-uri</param-name>
			<param-value>/zkau</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>zkLoader</servlet-name>
		<url-pattern>*.zul</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>zkLoader</servlet-name>
		<url-pattern>*.zhtml</url-pattern>
	</servlet-mapping>
	<!-- Optional. Uncomment it if you want to use richlets.
	<servlet-mapping>
		<servlet-name>zkLoader</servlet-name>
		<url-pattern>/zk/*</url-pattern>
	</servlet-mapping>
	-->
	<servlet>
		<description>The asynchronous update engine for ZK</description>
		<servlet-name>auEngine</servlet-name>
		<servlet-class>org.zkoss.zk.au.http.DHtmlUpdateServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>auEngine</servlet-name>
		<url-pattern>/zkau/*</url-pattern>
	</servlet-mapping>

	<welcome-file-list>
		<welcome-file>index.zul</welcome-file>
		<welcome-file>index.zhtml</welcome-file>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
	</welcome-file-list>
</web-app>

Version History

Last Update : 2012/2/9


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Copyright © Potix Corporation. This article is licensed under GNU Free Documentation License.