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https://beginnersbook.com/2014/01/jsp-custom-tags-with-example-jsp-tutorial/
In the below example we are creating a custom tag MyMsg which will display the message “This is my own custom tag” when used in a JSP page. Tag handler class: A tag handler class should implement Tag / IterationTag / BodyTag interface or it can also extend TagSupport / BodyTagSupport / SimpleTagSupport class.
http://www.devmanuals.com/tutorials/java/jsp/BodyTagSupport.html
BodyTagSupport is a class of package javax.servlet.jsp.tagext that extends the class TagSupport and implements the BodyTag interface. Since this class implements the BodyTag interface so all the methods for supporting a tag handler class is implemented already besides these methods this class provides to add an additional functionality to set the property of bodyContent.
https://www.journaldev.com/2099/jsp-custom-tags-example-tutorial
JSP Custom Tag Handler. This is the first step in creating custom tags in JSP. All we need to do is extend javax.servlet.jsp.tagext.SimpleTagSupport class and override doTag() method. The important point to note is that we should have setter methods for the attributes we need for the tag.
https://www.roseindia.net/jsp/body-tag-support-example.shtml
This example will illustrate you how to make custom tags in JSP along with implementation of BodyTagSupport's methods. To make custom tags in JSP and to use them, we have made an application which have <tbl:stag> </tbl:stag> tag which is being used to convert all contents of body of the tag to Upper case.
http://javaonlineguide.net/2014/10/easy-steps-to-create-custom-tags-in-jsp-example-code-tutorial.html
Easy steps to create custom tags in JSP example code & tutorial. VK October 25, 2014 jsp Writing too much java code in JSP itself may not be a good practice because it makes the code too complex and maintenance becomes more difficult.
https://www.javatpoint.com/custom-tags
There is given two simple examples of JSP custom tag. One example of JSP custom tag, performs action at the start of the tag and second example performs action at the start and end of the tag. Attributes in Custom Tag. Here, we will learn how we can define attributes for the custom tag. Iteration using Custom Tag. In this example, we are iterating the body content of the custom tag. Custom …
https://www.javatpoint.com/example-of-jsp-custom-tag
Create the JSP file that uses the Custom tag defined in the TLD file ; Understanding flow of custom tag in jsp 1) Create the Tag handler class. To create the Tag Handler, we are inheriting the TagSupport class and overriding its method doStartTag().To write data for the jsp, we need to use the JspWriter class.
https://docs.oracle.com/cd/E13222_01/wls/docs100/taglib/quickstart.html
Custom Tag Library JSP tag libraries include one or more custom JSP tags and are defined in a tag library descriptor (.tld) file. To use a custom tag library from a JSP page, reference its tag library descriptor with a <%@ taglib %> directive. For example:
https://www.codeproject.com/articles/31614/jsp-jstl-custom-tag-library
Dec 09, 2008 · A tag handler is an object invoked by the JSP runtime to evaluate a custom tag during the execution of a JSP page that references the tag. The methods of the tag handler are called by the implementation class at various points during the evaluation of the tag.4.9/5(20)
https://www.tutorialspoint.com/jsp/jsp_custom_tags.htm
In this chapter, we will discuss the Custom Tags in JSP. A custom tag is a user-defined JSP language element. When a JSP page containing a custom tag is translated into a servlet, the tag is converted to operations on an object called a tag handler. The Web container then invokes those operations when the JSP page's servlet is executed.
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