Struts 2 中使用虚拟数据的通配符动作映射 [英] Wildcard action mapping with dummy data in Struts 2
问题描述
我正在尝试使用通配符映射我的 Struts 操作.
I'm trying to map my Struts actions using wildcards.
之前，我使用了 Tuckey 的 UrlRewrite 过滤器.但是这个问题改变了我的想法.
Before, I used UrlRewrite Filter by Tuckey. But this question changed my mind.
所以这是我的问题:我的 URL 如下所示:
So here's my problem: My URL's look like the following:
www.example.com/promoties/category-123www.example.com/promoties/category-123/subcategory-456
在这些示例中，词 category 和 subcategory 是用于使 URL 与搜索引擎更相关的虚拟数据.
In these examples, the words category and subcategory are dummy data used to make the URL more relevant for search engines.
现在我想忽略这个虚拟数据，因为我只对(最后一个)ID 感兴趣.第一种情况 123 最后一种情况 456.
Now I'd like to ignore this dummy data, as I'm just interested in the (last) ID. In the first case 123 in the last case 456.
我尝试了以下方法但没有成功:
<package name="promoties" namespace="/promoties" extends="struts-default">
<action name="([0-9a-zA-Z\-_]+)-{id:([0-9]+)}$" class="CategoryAction">
<result type="tiles">categorydetail</result>
</action>
</package>
在我的 struts.xml 中使用以下选项:
Using following options in my struts.xml:
<constant name="struts.enable.SlashesInActionNames" value="true"/>
<constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/>
<constant name="struts.patternMatcher" value="regex" />
有没有人试过这个?我将如何在 Struts2 中执行此操作?
Has anyone tried this before? How would I go about doing this in Struts2?
推荐答案
一种方法是使用简单的通配符映射，并将 id 组件的验证规范为 struts2 验证.这是一个经过测试但未经验证的示例.
One way is to use simple wild card mapping and regulate the validation of the id component to struts2 validation. Here is an example which has been tested, but without validation.
struts.xml 你会在第二个我们看到为 category-* 和 category-*/subcategory-* 定义的动作将只保留第二个通配符.
struts.xml you'll see an action defined for category-* and category-*/subcategory-* in the second we'll just keep the second wild card.
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />
<constant name="struts.ognl.allowStaticMethodAccess" value="true"/>
<constant name="struts.enable.SlashesInActionNames" value="true"/>
<constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/>
<package namespace="" name="default" extends="struts-default">
<action name="category-*" class="test.TestBean">
<param name="id">{1}</param>
<result>/WEB-INF/content/test/results.jsp</result>
</action>
<action name="category-*/subcategory-*" class="test.TestBean">
<param name="id">{2}</param>
<result>/WEB-INF/content/test/results.jsp</result>
</action>
</package>
</struts>
test.TestBean 在这里我使用了一个字符串，但在您的情况下，您将其更改为 int 或 Integer.您需要使用验证 xml 或简单地实现 com.opensymphony.xwork2.Validateable 来验证我们确实获得了一个整数.
test.TestBean here I used a String but in your case you'll change this to int or Integer. You'll want to validate that we did get an integer using validation xml or simply implementing com.opensymphony.xwork2.Validateable.
package test;
import com.opensymphony.xwork2.ActionSupport;
public class TestBean extends ActionSupport{
//public to avoid get/set to make example shorter
public String id;
}
/WEB-INF/content/test/results.jsp
/WEB-INF/content/test/results.jsp
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
<body>
<h1>Wild Card Value</h1>
id: <s:property value="id"/>
</body>
</html>
示例 1网址:example.com/category-helloBart 产生...
Example 1 The url: example.com/category-helloBart produces...
外卡值
id: helloBart
id: helloBart
示例 2网址:example.com/category-helloBart/subcategory-123 产生...
Example 2 The url: example.com/category-helloBart/subcategory-123 produces...
外卡值
编号:123
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