JSTL (c-tag) vs. STRUTS2 (S-label) label Common features

1. Condition label

Jstl

<c:ifTest= "${user.password = = ' Hello '}">      <C:choose>          <C:whenTest= "${user.age <=}">              <FontColor= "Blue"/>          </C:when>          <C:whenTest= "${user.age <= && user.age >">              <FontColor= "Red"/>         </C:when>          <c:otherwise>             <FontColor= "Green"/>          </c:otherwise>      </C:choose></c:if>

STRUTS2:

<s:ifTest= "#user. Age <=">     <FontColor= "Blue"/></s:if><S:elseifTest= "#user. Age <= && user.age >">     <FontColor= "Red"/></S:elseif>     <FontColor= "Green"/></S:else>

2. Iteration Labels
Jstl:

<C:foreachvar= "User"Items= "${users}">      <C:outvalue= "${user.username}"/></C:foreach><!--number of iterations fixed -<C:foreachvar= "I"begin= "1"End= "Ten"Step= "3">    <C:outvalue= "${i}"/></C:foreach><!--this loop is equivalent to the for (int i=1; i<10; i++), where step is the step of the iteration, which defaults to 1. -

STRUTS2:

<S:iteratorvalue= "#users"Status= "Stuts">     <s:ifTest= "#stuts. Odd = = True">   <!--determine if it is an odd line -          <S:propertyvalue= "UserName"/>      </s:if>      <S:else>          <S:propertyvalue= "PassWord"/></S:else></S:iterator>

3. URL-related tags

Jstl:

<!--Absolute Path -<C:importURL= "http://127.0.0.1:8080/hello/hello.jsp"/><!--relative Path -<C:importURL= "hello.jsp"/><!--Encode -<ahref= "<c:url value= ' hello.jsp ' ><c:param name= ' userName ' value= ' cyanbomb '/></c:url> '></a><!--passing parameters to the specified URL -<C:importURL= "hello.jsp"charencoding= "gb2312">      <C:paramname= "UserName"value= "Cyanbomb"/></C:import><!--URL Redirection -<C:redirectURL= "${myurl}"/><!--construct URL -<C:urlvalue= "Myurl"var= "hello.jsp"Scope= "Session"><C:paramname= "UserName"value= "Cyanbomb"/></C:url>

STRUTS2:

<ahref= ' <s:urlvalue= "/hello.jsp" />' >hello</a><BR/><S:urlID= "url"value= "/hello.jsp"><S:paramname= "Name">Cyanbomb</S:param></S:url><s:ahref= "%{url}">Hello</s:a>

Dismiss the question, list traversal problem

Like such a list, there are 3 records, each record contains two objects, I put the result set (lstrooms) request to the page, I want to traverse the display Rrmrooms ID, and rrmroomtype name. I use JSTL to achieve the following:

<Table>      <C:foreachvar= "rm"Items= "${lstrooms}">          <TR>              <TD>${rm[0].id}</TD>              <TD>${rm[1].name}</TD>          <TR>      </C:foreach></Table>

The STRUTS2 is implemented as follows:

<Table>      <S:iteratorvalue= "#lstRooms"Status= "Stat">          <TR>              <TD><S:propertyvalue= "#lstRooms [#stat. Index][0].id"/></TD>              <TD><S:propertyvalue= "#lstRooms [#stat. Index][1].name"/></TD>         <TR>      </S:iterator></Table>

JSTL (c-tag) vs. STRUTS2 (S-label) label Common features