How to search for a taglib's code （from wiki）

最新推荐文章于 2017-02-22 09:01:39 发布

转载最新推荐文章于 2017-02-22 09:01:39 发布 · 525 阅读

文章标签：

#search #javadoc #path #resources #jsp #basic

本文介绍了一种在Java Server Pages (JSP) 中查找特定TagLib实现代码的方法。以<liferay-ui:search-iterator>为例，详细展示了如何通过liferay-ui.tld文件找到对应的Java类及JSP文件路径。

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This page describes how to search for the code that implements a taglib that is being used in a JSP. Let's use the following as an example:

<liferay-ui:search-iterator searchContainer="<%= searchContainer %>" />

First break down the tag a little into its separate parts:

liferay-ui
search-iterator
searchContainer

You can find the liferay-ui param with this path (version 4.2):

util-taglib/classes/META-INF/liferay-ui.tld

In liferay-ui.tld, search for search-iterator:

<tag>
   <name>search-iterator</name>
   <tagclass>com.liferay.taglib.ui.SearchIteratorTag</tagclass>
   <bodycontent>JSP</bodycontent>
   <attribute>
       <name>page</name>
       <required>false</required>
       <rtexprvalue>true</rtexprvalue>
   </attribute>
   <attribute>
       <name>searchContainer</name>
       <required>true</required>
       <rtexprvalue>true</rtexprvalue>
   </attribute>
</tag>

searchContainer is one of the attributes.

To find the path to the JSP, its stored in the tagclass.

<tagclass>com.liferay.taglib.ui.SearchIteratorTag</tagclass>

In the java class, you'll see a variable with the path to the JSP:

private static final String _PAGE = "/html/taglib/ui/search_iterator/page.jsp";

Another great way to do this is to use Javadoc. You can find the Javadoc API online in the developer section of the liferay site. Just choose the UTIL-TAGLIB sub project and browse the packages, till you find the tag you are looking for, Select it, then select the "View Source" link.

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