Configuring JSP engine parameters
Learn about how to add, change or delete JSP engine configuration parameters.
About this task
The following note applies to the file references with
a .xmi extension in this topic:
Supported configurations: For IBM® extension
and binding files, the .xmi or .xml file name extension is different
depending on whether you are using a pre-Java EE 5 application or
module or a Java™ EE 5 or later
application or module. An IBM extension
or binding file is named ibm-*-ext.xmi or ibm-*-bnd.xmi where * is
the type of extension or binding file such as app, application, ejb-jar,
or web. The following conditions apply:
WebSphere® Application Server does not support
the modification of deployment descriptor extension parameters through
the Administrative Console or through administrative scripting. 
However, a Java EE 5 or later module can exist within an application that includes pre-Java EE 5 files and uses the .xmi file name extension.
The ibm-webservices-ext.xmi, ibm-webservices-bnd.xmi, ibm-webservicesclient-bnd.xmi, ibm-webservicesclient-ext.xmi, and ibm-portlet-ext.xmi files continue to use the .xmi file extensions.
sptcfg
To add, change or delete JSP engine configuration parameters, complete the following steps:
Procedure
Example
The following is a sample of the WEB-INF/ibm-web-ext.xmi file.
The lines in bold text are JSP engine configuration parameters.
<?xml version="1.0" encoding="UTF-8"?>
<webappext:WebAppExtension xmi:version="2.0" xmlns:xmi=http://www.omg.org/XMI
xmlns:webappext="webappext.xmi" xmlns:webapplication="webapplication.xmi" xmi:id="WebAppExtension_1"
reloadInterval="9" reloadingEnabled="true" defaultErrorPage="error.jsp" additionalClassPath=""
fileServingEnabled="true" directoryBrowsingEnabled="false" serveServletsByClassnameEnabled="true"
autoRequestEncoding="true" autoResponseEncoding="false">
<webApp href="WEB-INF/web.xml#WebApp_1"/>
<jspAttributes xmi:id="JSPAttribute_1" name="useThreadTagPool" value="true"/>
<jspAttributes xmi:id="JSPAttribute_2" name="verbose" value="false"/>
<jspAttributes xmi:id="JSPAttribute_3" name="deprecation" value="false"/>
<jspAttributes xmi:id="JSPAttribute_4" name="reloadEnabled" value="true"/>
<jspAttributes xmi:id="JSPAttribute_5" name="reloadInterval" value="5"/>
<jspAttributes xmi:id="JSPAttribute_6" name="keepgenerated" value="true"/>
<!--<jspAttributes xmi:id="JSPAttribute_7" name="trackDependencies" value="true"/> -->
</webappext:WebAppExtension>
The following is a sample of the WEB-INF/ibm-web-ext.xml file.
The lines in bold text are JSP engine configuration parameters.
<?xml version="1.0" encoding="UTF-8"?>
<web-ext
xmlns="http://websphere.ibm.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://websphere.ibm.com/xml/ns/javaee http://websphere.ibm.com/xml/ns/javaee/ibm-web-ext_1_0.xsd"
version="1.0">
<default-error-page uri="error.jsp"/>
<jsp-attribute name="useThreadTagPool" value="true" />
<jsp-attribute name="verbose" value="false" />
<jsp-attribute name="deprecation" value="false" />
<jsp-attribute name="reloadEnabled" value="true" />
<jsp-attribute name="reloadInterval" value="5" />
<jsp-attribute name="keepgenerated" value="true" />
<jsp-attribute name="trackDependencies" value="true" />
<reload-interval value="9"/>
<auto-encode-requests value="true"/>
<auto-encode-responses value="false"/>
<enable-directory-browsing value="false"/>
<enable-file-serving value="false"/>
<pre-compile-jsps value="false"/>
<enable-reloading value="true"/>
<enable-serving-servlets-by-class-name value="true"/>
</web-ext>
Attention: The integer n in JSPattribute_n has
to be unique within the file.