java 子目录中的 JSP 标记文件，使用单个 taglib 前缀。那可能吗？
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JSP Tag Files in subdirectories, using a single taglib prefix. Is that possible?
提问by electrotype
I currently have my .tag files declared with:
我目前有我的 .tag 文件声明为：
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>
Example of the path of a tag file :
标签文件路径示例：
/WEB-INF/tags/test.tag
And I use them like so :
我像这样使用它们：
<t:test oneAttributeKey="oneAttributeValue">
some content...
</t:test>
My problem: I don't want to put all my tag files in one singlefolder, "/WEB-INF/tags".
我的问题：我不想将所有标签文件放在一个文件夹中，“/WEB-INF/tags”。
I would prefere to have them in different subdirectories :
我更喜欢将它们放在不同的子目录中：
/WEB-INF/tags/users/
/WEB-INF/标签/用户/
/WEB-INF/tags/widgetsA/
/WEB-INF/标签/小部件A/
/WEB-INF/tags/widgetsB/
/WEB-INF/标签/小部件B/
(...)
(...)
Is this possible, without creating a different taglib prefix for each and everyone of them?
这是可能的，而无需为每个人创建不同的 taglib 前缀吗？
Example of what I'd like to avoid :
我想避免的例子：
<%@taglib prefix="t_users" tagdir="/WEB-INF/tags/users" %>
<%@taglib prefix="t_widgetsA" tagdir="/WEB-INF/tags/widgetsA" %>
<%@taglib prefix="t_widgetsB" tagdir="/WEB-INF/tags/widgetsB" %>
Example of what I would like, using a single "t" prefix :
我想要的示例，使用单个“t”前缀：
<t:users/onetag oneAttributeKey="oneAttributeValue">
some content...
</t:users/onetag>
Does a similar solution exist?
是否存在类似的解决方案？
UPDATE: BalusC showed it's possible to use one prefix only, by defining all the tag files in a single .tld. I guess my question was not clear enough then : I'd like to know if it's possible to use the tag files in multiple subdirectories, without having to specify a path to each of them anywhereexcept in the element that use them (ex: "<t:users/onetag")!
更新：BalusC 表明通过在单个 .tld 中定义所有标签文件，可以只使用一个前缀。我想我的问题还不够清楚：我想知道是否可以在多个子目录中使用标记文件，而不必在使用它们的元素之外的任何地方指定每个标记文件的路径（例如：“ <t:users/onetag")！
What I do not like about JSP Tags is that they act very differently than regular JSP files, even if they actually share very similar content. In fact, I even decided to put all my jsp files inside the /WEB-INF/tags/ folder, so they are side to side with the tag files (I had to choose /WEB-INF/tags/ for that, since this folder is mandatory for the tag files, for some reason)! I don't understand why some of my files containing HTML would go in /WEB-INF/jsp/ and some others in /WEB-INF/tags/!!
我不喜欢 JSP 标签的一点是它们的行为与常规 JSP 文件非常不同，即使它们实际上共享非常相似的内容。事实上，我什至决定将我所有的 jsp 文件放在 /WEB-INF/tags/ 文件夹中，所以它们与标签文件并排（我不得不为此选择 /WEB-INF/tags/，因为这出于某种原因，文件夹对于标记文件是必需的）！我不明白为什么我的一些包含 HTML 的文件会在 /WEB-INF/jsp/ 中，而另一些会在 /WEB-INF/tags/ 中！
I want to be able to groupthe jsp and tag files into directories, depending of what they are related to! Example :
我希望能够将 jsp 和标记文件分组到目录中，具体取决于它们的相关内容！例子 ：
/WEB-INF/tags/users/userProfileLayout.tag
/WEB-INF/tags/users/employeeProfile.jsp
/WEB-INF/tags/users/employerProfile.jsp
/WEB-INF/tags/widgetsA/widgetALayout.tag
/WEB-INF/tags/widgetsA/oldWidgetA.jsp
/WEB-INF/tags/widgetsA/newWidgetA.jsp
But this forces me to declare the path of each of the subdirectories, in multiple @tablib or in a .tld, which I find a little bit inconvenient. I'll live with it, but I think it could be improved.
但这迫使我在多个@tablib 或 .tld 中声明每个子目录的路径，我觉得这有点不方便。我会忍受它，但我认为它可以改进。
回答by BalusC
Define them as <tag-file>in a single .tldfile which you put in /WEB-INFfolder.
将它们定义为放在文件夹<tag-file>中的单个.tld文件中/WEB-INF。
E.g. /WEB-INF/my-tags.tld
例如 /WEB-INF/my-tags.tld
<?xml version="1.0" encoding="UTF-8" ?>
<taglib
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
version="2.1"
>
<display-name>My custom tags</display-name>
<tlib-version>1.0</tlib-version>
<short-name>my</short-name>
<uri>http://example.com/tags</uri>
<tag-file>
<name>foo</name>
<path>/WEB-INF/tags/users/foo.tag</path>
</tag-file>
<tag-file>
<name>bar</name>
<path>/WEB-INF/tags/widgetsA/bar.tag</path>
</tag-file>
<tag-file>
<name>baz</name>
<path>/WEB-INF/tags/widgetsB/baz.tag</path>
</tag-file>
</taglib>
Use it in your JSPs as follows
在您的 JSP 中使用它，如下所示
<%@taglib prefix="my" uri="http://example.com/tags" %>
...
<my:foo />
<my:bar />
<my:baz />
回答by Helder Pereira
A pattern that I follow, even though doesn't address the OP's problem directly, I find it makes the whole situation a lot less painful, which is creating a JSP Fragment where I define all taglibs:
我遵循的一种模式，尽管没有直接解决 OP 的问题，但我发现它使整个情况变得不那么痛苦，它创建了一个 JSP 片段，我在其中定义了所有标签库：
/WEB-INF/views/taglibs.jspf
/WEB-INF/views/taglibs.jspf
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="layout" tagdir="/WEB-INF/tags/layout" %>
<%@ taglib prefix="t_users" tagdir="/WEB-INF/tags/users" %>
<%@ taglib prefix="t_widgetsA" tagdir="/WEB-INF/tags/widgetsA" %>
<%@ taglib prefix="t_widgetsB" tagdir="/WEB-INF/tags/widgetsB" %>
And then include this JSP Fragment at the top of every JSP file:
然后在每个 JSP 文件的顶部包含这个 JSP 片段：
/WEB-INF/views/users/employeeProfile.jsp
/WEB-INF/views/users/employeeProfile.jsp
<%@ include file="/WEB-INF/views/taglibs.jspf" %>
<layout:main>
<h1>Employee Profile</h1>
...
</layout:main>
回答by nitind
Should work. Folder names under the specified tag-dir value become hyphen-separated parts of the tag names you would use.
应该管用。指定 tag-dir 值下的文件夹名称成为您将使用的标签名称的连字符分隔部分。
