Ch. 9 jsp standard tag library
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This document discusses the JSTL (JSP Standard Tag Library) which provides tags for common tasks like looping and flow control. It introduces several core JSTL tags like <c:forEach> for looping, <c:if> for conditional logic, and <c:url> for generating URLs. The document also covers how to define custom tags through a Tag Library Descriptor (TLD) that specifies the tag name, library URI, and other metadata. It questions how custom tags are handled and where TLD files are located.
Ch. 9 jsp standard tag library
- 1. Chapter 9 JSP Standard Tag Library (JSTL) Templates (EL)
- 2. EL and standard actions not enough • Looping • Flow control • … • Install (see page 440 in the book)
- 4. the <c:out> tag • May have attributes too <b>Hello <c:out value=’${user}’ default=’guest’ />.</b> • May save you from cross-site hacking
- 9. <c:if>
- 10. <c:choose>, <c:when> & <c:otherwise>
- 12. <c:remove> & <c:import> include directive or <jsp:include> SA can not do this and many more others
- 13. <c:url>
- 15. Not all errors are catchable
- 17. Custom Libraries • tag name and syntax • library URI • TLD (Tag Library Descriptor)
- 18. DD helps
- 19. Catch them all?
- 20. Using custom tags: the Tag Library Descriptor (TLD)
- 22. Handling a custom tag
- 23. <rtexprvalue>
- 24. How do they match?
- 25. Where are the tld’s?