Illegal use of <when>-style tag without <choose> as its direct parent
2015-05-21 15:06
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在jsp页面用报错Illegal use of <when>-style tag without <choose> as its direct parent
原因是：必须在里面使用。
具体用法如下：
原因是：必须在里面使用。
具体用法如下：
<c:choose>
<c:when test="${book.compareToday=='0'}">
<h5>预约过期</h5>
</c:when>
<c:otherwise>
取消预约
</c:otherwise>
</c:choose>
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