<if></if>标签

<c:if test="${document.mediaType ==1}">
			<div class="article">${documentContent.content}</div>
		</c:if>
		<c:if test="${document.mediaType ==2}">
			视频
		</c:if>
		<c:if test="${document.mediaType ==3 && document.fileUrl !=null}">
			<audio src="${document.fileUrl }" preload="auto"></audio>
		</c:if>
		<s:if test='document.mediaType ==@com.swt.app.util.Constant@MEDIA_TYPE_ARTICLE'>
			<div class="article">${documentContent.content}</div>
		</s:if>
		<s:if test='document.mediaType ==@com.swt.app.util.Constant@MEDIA_TYPE_VIDEO'>
			视频
		</s:if>
		<s:if test='document.mediaType == @com.swt.app.util.Constant@MEDIA_TYPE_AUDIO 
			&& document.fileUrl != null
			&& !"".equals(document.fileUrl)'>
			<audio src="${document.fileUrl }" preload="auto"></audio>
		</s:if>