1
將XML轉換選擇了一些,我有以下XML文件中的在JSP
<knowledgecases>
<knowledgecase>
<caseid>101000000009</caseid>
<question>What can I put into my brown bin?</question>
<version />
</knowledgecase>
<knowledgecase>
<caseid>101000000006</caseid>
<question>What is ‘Scores on the Doors’?</question>
<version />
</knowledgecase>
</knowledgecases>
我想1添加到caseids。
所以我已經試過這
<c:import var="xml" url="<%=theUrl%>">
<c:param name="param1" value="${param.param1}"/>
<c:param name="param2" value="${param.param2}"/>
</c:import>
<body>
<x:parse xml="${xml}" var="output"/>
<ul class="list">
<x:forEach select="$output/knowledgecases/knowledgecase/caseid" var="newcaseid">
<c:set var="count" value="${newcaseid + 1}"/>
<li>adjacent case <x:out select="$count" /></li>
</x:forEach>
</ul>
</body>
我希望它顯示
101000000010
101000000007
相反,我得到的錯誤
java.lang.IllegalArgumentException: Cannot convert [caseid: null] of type class com.sun.org.apache.xerces.internal.dom.DeferredElementNSImpl to Number
如果我改變
value="${newcaseid + 1} to value="${newcaseid}
它顯示
101000000009
101000000006
不知道我在做什麼錯
感謝,這完美地工作。 – user1554759