Struts标签库-----外文翻译.docVIP

外文资料 所译外文资料： 作者：Ted Husted 书名：Struts in Action 所译章节：10.3 10.3 The Struts taglibs First, your application is not constrained to using only the Struts tags. Tag extensions are a standard Java technology. Other standard libraries are available,including Sun’s JSP Standard Tag Library [Sun, JSTL], the Jakarta Taglibs [ASF,Taglibs], and Struts-Layout tags by Improve [Improve], to name a few. All of these,and more, can be used in your application alongside the Struts taglibs. If you have needs that are not met by a prewritten extension, or would like to streamline a tag’s processing, you can also write your own custom tags. Your own tags can then be mixed and matched with those from other sources. The Struts distribution includes four key tag libraries: bean, html, logic, and nesting,as listed in table 10.2. Most of the tags in the html library (org.apache. struts.taglibs.html) depend on the framework. Most of the tags in the other libraries do not rely on the framework and could be used in other applications. In this section, we look at common features shared by the Struts taglib, and then introduce each of the libraries. This material is not meant to replace the Struts Table 10.2 The four key Struts tag libraries Library Description bean Tags useful in accessing JavaBeans and their properties, as well as defining new beans html Tags used to create HTML input forms that can interact with the Struts framework, and related html Tags logic Tags for managing the conditional generation of output, looping over object collections for repetitive generation of output, and application flow management nested Tags that provide enhanced nesting capabilities to the other Struts tags Developer Guides and technical documentation. For detailed specifics regarding each tag, we refer you to the technical documentation. This section is designed to build a foundation for section 10.4, where we explore putting the Struts tag to work. 10.3.1 Features common to Struts tags The JSP