J2EE Web Fundamentals Lesson 9 JSTL

J2EE Web FundamentalsLesson 9

JSTL

Instructor: Dr. Segun Adekile

Outline

• Objectives• Course Text Book– Basham, Bryan; Sierra, Kathy; Bates, Bert (2012-

10-30). Head First Servlets and JSP (Kindle Location 1349). O'Reilly Media. Kindle Edition.

• JSTL

Objectives

Agenda• <c:forEach>• <c:if>• <c:choose>• <c:out>• <c:set>• <c:remove>• <c:import>• <c:url>• Error pages• <c:catch>

JSTL – JSP Standard Tag Library

<c:forEach>

<c:forEach>

<c:forEach>

<c:if>

<c:if>

<c:choose>

<c:choose>

<c:out>• It is used to output to the current JspWriter. This is

similar to using the JSP expression <%=scripting language expression %> to write dynamic data to the client.

• The value to be written to the JspWriter is specified as a value attribute. You can use expressions in the value attribute. This allows for the resulting evaluation to be sent to the JspWriter. The <c:out> tag can perform XML character-entity encoding for <, >, &, ", and '. This means that a < will be automatically encoded to &lt;.

<c:out> example

<c:out> example

<c:set>

<c:set>

<c:set>

<c:remove>

<c:import>

<c:url>

Error pages

Error pages

Error pages

Error pages

<c:catch>

Recap