Early Adopter JSP Standard Tag Library (Paperback)

JavaServer Pages, or JSP, is a Java Enterprise technology which enables web programmers to build pages using special tags which access Java code running on the server. As of JSP 1.1, there has also been the capability to specify custom JSP tag libraries, or taglibs, and many such libraries have been developed to enable developers to integrate different technologies into their JSP applications. The JSP Standard Tag Library, JSTL, is set to standardize the common features of many such libraries into a core set of tags of use to every JSP developer.

The standard tag library provides tags for performing basic decision-making and repetition within a page, as well as localizing messages for the user, handling XML data, and database access. It's also possible to extend the library with our own tags that collaborate with the standard tags. A core element of the library is its support for expression languages, which are used to share and access data between JSP pages.

This book has been developed at the same time as the first release of the JSP standard tag library, and presents a practical overview of what the new tag library allows JSP developers to do.

JavaServer Pages（JSP）是一項Java企業技術，它使網頁程式設計師能夠使用特殊標籤來訪問在伺服器上運行的Java程式碼來建立網頁。從JSP 1.1開始，還可以指定自定義的JSP標籤庫（taglibs），並且已經開發了許多這樣的庫，以便開發人員能夠將不同的技術整合到他們的JSP應用程序中。JSP標準標籤庫（JSTL）旨在將許多這樣的庫的常見功能標準化為一組對每個JSP開發人員有用的核心標籤。

標準標籤庫提供了在頁面內執行基本決策和重複操作的標籤，以及為用戶本地化消息、處理XML數據和數據庫訪問提供的標籤。還可以通過自定義標籤擴展庫，這些標籤與標準標籤協同工作。庫的核心元素是其對表達式語言的支持，該語言用於在JSP頁面之間共享和訪問數據。

本書與JSP標準標籤庫的首個版本同步開發，並提供了新標籤庫允許JSP開發人員執行的實用概述。