Struts2 控制标签之 if elseif else

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我是靠谱客的博主简单乌龟，最近开发中收集的这篇文章主要介绍Struts2 控制标签之 if elseif else，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

创建 JSP 页面 IfControlTag.jsp

Set a property 'technologyName' with a value 'Java' as

<s:set name="technologyName" value="%{'Java'}"/>

IfControlTag.jsp

 
 <%@ taglib prefix="s" uri="/struts-tags" %>

<html>
  <head> 
  <title>Struts 2 Control Tag Example</title>
  </head>
  <body>
  <s:set name="technologyName" value="%{'Java'}"/>

 <s:if test="%{#technologyName=='Java'}">
  <div><s:property value="%{#technologyName}" /></div>
  </s:if>

  <s:elseif test="%{#technologyName=='Jav'}">
  <div><s:property value="%{#technologyName}" /></div>
  </s:elseif>
  
  <s:else>
  <div>Technology Value is not Java</div>
  </s:else>

  </body>
</html>

struts.xml: Add the following xml snippet in the struts.xml file

<action name="doIf" >
<result>/pages/genericTags/IfControlTag.jsp</result>
</action>

In the IfControlTag.jsp only <s:if> tag evaluates to true <s:if test="%{#technologyName=='Java'}"> <div><s:property value="%{#technologyName}" /></div> </s:if>