Administration and Configuration

5 Administration and Configuration

The following topics provide an overview of administration and configuration tasks for using JSP tag extensions.

You can configure a JSP tag library as well as package a tag library as a JAR file.

To configure JSP tag libraries:

Create a tag library descriptor (TLD).

See Creating a Tag Library Descriptor.
Reference this TLD in the web application deployment descriptor, web.xml. For example:
```
<taglib>
  <taglib-uri>myTLD</taglib-uri>
  <taglib-location>WEB-INF/library.tld</taglib-location>
</taglib>
```
In this example the tag library descriptor is a file called library.tld. Always specify the location of the tld relative to the root of the Web application.
Place the tag library descriptor file in the WEB-INF directory of the Web application.
Reference the tag library in the JSP page.
In your JSP, reference the tag library with a JSP directive. For example:
```
<%@ taglib uri="myTLD" prefix="mytaglib" %>
```
Place the tag handler Java class files for your tags in the WEB-INF/classes directory of your Web application.
Deploy the Web application on WebLogic Server. See Deploying and Packaging from a Split Development Directory in Developing Applications for Oracle WebLogic Server.

Parent topic: Administration and Configuration

You can also package a JSP tag library as a JAR file.

To package a JSP tag library as a JAR file:

Create a TLD (tag library descriptor) file named taglib.tld.

See Creating a Tag Library Descriptor.
Create a directory containing the compiled Java tag handler class files used in your tag library.
Create a subdirectory of the directory you created in step;2 and call it META-INF.
Copy the taglib.tld file you created in step;1 into the META-INF directory you created in step;3.
Archive your compiled Java class files into a jar file by executing the following command from the directory you created in step;2.
```
jar cv0f myTagLibrary.jar
```
(where myTagLibrary.jar is a name you provide)
Copy the jar file into the WEB-INF/lib directory of the Web application that uses your tag library.
Reference the tag library in your JSP.
For example:
```
<%@ taglib uri="taglib.tld" prefix="wl" %>
```
A more flexible alternative would be to perform steps 1 through 6 and then reference the tag library descriptor in the Web application deployment descriptor, web.xml.

For example:
```
. . .
<taglib>
;;;<taglib-uri>myjar.tld</taglib-uri>
;;;<taglib-location>
;;;;;;/WEB-INF/lib/myTagLibrary.jar
;;;</taglib-location>
</taglib>
. . .
```
You can then reference the tag library in your JSP.

For example:

<%@ taglib uri="myjar.tld" prefix="wl" %>

Parent topic: Administration and Configuration