JSP Custom Tag Library

JS What is tag?

Tags are divided into two categories, with body markers, no body markers

<tagname attributename= "somevalue" attributename1= ""/>



A body marker is a pair.
Components that Mark Library



1. Tag Processor: A Java class file

2. Token Library descriptor file (TLD): A XML file (struts-html, Struts-bean, Struts-logic,structs-template)

3. Web.xml

4. JSP Page Declaration



Using tag libraries for struts programs
1.On JSP page:

<%@ taglib uri= "/web-inf/struts-html.tld" prefix= "html"%>

2.On Web.xml:
<taglib>

<taglib-uri>/web-inf/struts-html.tld</taglib-uri>

</tablib>



Use JavaBeans with the struts marker

There are three different ways:

Accessing Simple properties

Accessing nested properties

accessing indexed properties



Access simple properties: <jsp:getproperty name= "Instance" property= "Somepreperty"/>

Access nested properties: property= "User.address.city equals GetUser (). GetAddress (). Getcity ()

Access Index properties: property= "address[2]" equals getaddress (2)