Custom tag JSP
Steps for creating custom tag get from here
code for creating jsp custom tag with body
Tag implementation
TagBody.java
package st;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
public class TagBody extends TagSupport
{
public int doStartTag() throws JspException
{
try{
JspWriter out = pageContext.getOut();
out.println( "<table border=1>");
out.println("<tr><td> ");
}
catch(Exception ex)
{
}
return EVAL_BODY_INCLUDE;
}
public int doEndTag() throws JspException
{
try{
JspWriter out = pageContext.getOut();
out.println("</td></tr>");
out.println("</table>");
}
catch(Exception ex)
{
}
return EVAL_PAGE;
}
}
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
public class TagBody extends TagSupport
{
public int doStartTag() throws JspException
{
try{
JspWriter out = pageContext.getOut();
out.println( "<table border=1>");
out.println("<tr><td> ");
}
catch(Exception ex)
{
}
return EVAL_BODY_INCLUDE;
}
public int doEndTag() throws JspException
{
try{
JspWriter out = pageContext.getOut();
out.println("</td></tr>");
out.println("</table>");
}
catch(Exception ex)
{
}
return EVAL_PAGE;
}
}
Tag link library st.tld
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/j2ee/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>st</short-name>
<tag>
<name>time</name>
<tag-class>st.CurrentTime</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>Hello</name>
<tag-class>st.HelloTag</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>myTag</name>
<tag-class>st.myTag</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>bodyTag</name>
<tag-class>st.BodyTag</tag-class>
<body-content>jsp</body-content>
</tag>
<tag>
<name>Tagbody</name>
<tag-class>st.TagBody</tag-class>
<body-content>jsp</body-content>
</tag>
<tag>
<name>formattime</name>
<tag-class>st.FormatCurrentTime</tag-class>
<body-content>empty</body-content>
<attribute>
<name>format</name>
<required>false</required>
</attribute>
</tag>
</taglib>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/j2ee/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>st</short-name>
<tag>
<name>time</name>
<tag-class>st.CurrentTime</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>Hello</name>
<tag-class>st.HelloTag</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>myTag</name>
<tag-class>st.myTag</tag-class>
<body-content>empty</body-content>
</tag>
<tag>
<name>bodyTag</name>
<tag-class>st.BodyTag</tag-class>
<body-content>jsp</body-content>
</tag>
<tag>
<name>Tagbody</name>
<tag-class>st.TagBody</tag-class>
<body-content>jsp</body-content>
</tag>
<tag>
<name>formattime</name>
<tag-class>st.FormatCurrentTime</tag-class>
<body-content>empty</body-content>
<attribute>
<name>format</name>
<required>false</required>
</attribute>
</tag>
</taglib>
JSP code
<%@page language="java" contentType="text/html" %>
<%@ taglib uri="/WEB-INF/tlds/st.tld" prefix="my"%>
<html>
<body>
<my:Tagbody>
SS College
</my:Tagbody>
</body>
</html>
<%@ taglib uri="/WEB-INF/tlds/st.tld" prefix="my"%>
<html>
<body>
<my:Tagbody>
SS College
</my:Tagbody>
</body>
</html>
Output
 |
| JSP custom tag with body |
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