5 Administration and Configuration

The following sections provide an overview of administration and configuration tasks for using JSP tag extensions:

Configuring JSP Tag Libraries
Packaging a JSP Tag Library as JAR File

Configuring JSP Tag Libraries

The following steps describe how to configure a JSP tag library. You can also package a tag library as a jar file (see Packaging a JSP Tag Library as JAR File).

Create a tag library descriptor (TLD).

For more information, see Chapter 3, "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. For more information, see "Deploying and Packaging from a Split Development Directory" in Oracle Fusion Middleware Developing Applications for Oracle WebLogic Server.

Packaging a JSP Tag Library as JAR File

In addition to the procedure described in the previous section Configuring JSP Tag Libraries you can also package a JSP tag library as a jar file:

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

For more information, see Chapter 3, "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 this 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>

Reference the tag library in your JSP. For example:
```
<%@ taglib uri="myjar.tld" prefix="wl" %>
```