JSP Custom Tag with Body

JSP- Custom Tag with Body

Introduction:

Custom tags include jsp components such as text, jsp scriptlets, jsp expression within its body tag are called custom tags with body.

< good:GoodMorning >
suresh goodmoring
< /good:GoodMorning >

The output is the body content is converted into the UpperCase.

We specify custom tag contain body when we are creating TLD file. When we create TLD file, we specify < body-content > element of the TLD as JSP. When we create Custom Tag .we specify < body-content > as empty. Now we are going to create custom tag with body so we specify < body-content > as JSP to indicate that container evaluate the body content of the tag.




Note:
We specify < body-content > as tagdependent, the jsp container should not evaluate the body of the tag but instead pass it to the tag handler for evaluation.



Problem:

< good:GoodMorning >
suresh goodmoring
< /good:GoodMorning >

The output is the body content is converted into the UpperCase.

Procedure:

Step 1:

Create Project named as CustomTagProject (Already we have Created CustomTagProject)

If you are new to Custom Tag, Please refer Custom tag Empty Tag Creation.

Custom Tag – Example For Empty Tag

Step 2:

Create TLD file. Named good.tld

How to create TLD, please refer 

Important:

No need to include coding into the TLD file. The content of the TLD file will be automatically included into the TLD file when we create Tag handler Class.

Step 3:

            Create Tag Handler Class named as GoodMorning.

Select BodyTagSupport because we are going to create Custom tag with body.

Note: we have selected Body Content as JSP.

Step 4:

            Create jsp file named as good.jsp.

< %@page contentType="text/html" pageEncoding="UTF-8"% >
< !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
http://www.w3.org/TR/html4/loose.dtd >
< %@taglib uri="/WEB-INF/tlds/good" prefix="good" % >
< html >
< head >
< title > JSP good Page < /title >
< /head >
< body >
< h1 > Hello World! < /h1 >
< good:GoodMorning >
sureshkumar
< /good:GoodMorning >
< /body >
< /html >

Step 5:

            Run the good.jsp

Step 6:

            Get Output

Step 7:

            Structure of the CustomTagProject