tailieunhanh - Head First Servlets and JSP phần 8

Tham khảo tài liệu 'head first servlets and jsp phần 8', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chapter 10. When even JSTL is not enough. iterating with lassie tags J But how do you loop over the body It looks like doStartTagO is called too early and doEndTagO is too late and I don t have any way to keep re-invoking the body evaluation. _ Simple tag package and imports public class SimpleTagTest extends SimpleTagSupport public void doTagO throws JspException lOException null 1 1 ó Simp e tao 1 ỈC body withib dolijO. Classic tag package and imports public class ClassicTest extends TagSupport public int doStartTagO throws JspException return EVAL-BODY INCLUDE 17 .ii th i d 2 Í ibrtoad 4 IN a mrfhod like doTajO public int doEndTagO throws JspException return EVAL_PAGE 524 chapterio Chapter 10. When even JSTL is not enough. Head First Servlets and JSP By Bert Bates Kathy Sierra Bryan Basham ISBN 0596005407 Publisher Prepared for Augusto Jaramillo Forcada Safari ID O Reilly Print Publication Date 8 1 2004 User number 729515 Copyright 2007 Safari Books Online LLC. This PDF is exclusively for your use in accordance with the Safari Terms of Service. No part of it may be reproduced or transmitted in any form by any means without the prior written permission for reprints and excerpts from the publisher. Redistribution or other use that violates the fair use priviledge under . copyright laws see 17 USC107 or that otherwise violates the Safari Terms of Service is strictly prohibited. Chapter 10. When even JSTL is not enough. custom tag svelopment Classic tags have a different lifecycle Simple tags are simple it s all about doTagO- Butwith classic tags there s a doSíaríTagO and a doEWTagO. And that brings up an interesting problem when and how is the body evaluated There s no doBodyO method but there is a doẠ ỉerBodyO method that s called after the body is evaluated and before the doEndTagO runs. Web Container Classic tag class Tag Handler Object Container 101101 10101000010 1010 10 0 01010 1 1010101 10101010 1001010101 Load .

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