我有一个要求,我希望有 if else 语句来检查节点是否具有属性或它只有字符串。
例如:1个节点有0 File(s) found
另一个具有 <autoincludesystem_info mdate='08/23/2011' mtime='09:51' ampm='PM' filesize='64' filename='AFP_p.tgp' />
等属性
下面是两个节点的示例
<product>
<autoIncludeUser>0 File(s) found</autoIncludeUser>
<autoIncludeSystem>
<autoincludesystem_info mdate='08/23/2011' mtime='09:51' ampm='PM' filesize='64' filename='AFP_p.tgp' />
<autoincludesystem_info mdate='08/23/2011' mtime='09:51' ampm='PM' filesize='3,879' filename='AnalystsExpressionMacros.tgp' />
<autoincludesystem_info mdate='08/23/2011' mtime='09:51' ampm='PM' filesize='475' filename='base64Converter.tgp' />
<autoincludesystem_info mdate='08/23/2011' mtime='09:51' ampm='PM' filesize='<DIR>' filename='codePages' />
</autoIncludeSystem>
<autoIncludeStudio>0 File(s) found</autoIncludeStudio>
<externalLibrarySystem>
<externalLibrarySystem_info mdate='08/23/2011' mtime='09:52' ampm='PM' filesize='196,608' filename='AFPtoXML_DP.dll' />
<externalLibrarySystem_info mdate='08/23/2011' mtime='09:52' ampm='PM' filesize='13,259' filename='ASN1toXSDRunner.jar' />
<externalLibrarySystem>
</product>
我如何确定一个节点是否只有字符串或属性,并基于此我可以获得值 String
或 attrib values
分别。
最佳答案
我们可以通过下面的代码实现if else
<xsl:choose>
<xsl:when test="something to test">
</xsl:when>
<xsl:otherwise>
</xsl:otherwise>
</xsl:choose>
这就是我所做的
<h3>System</h3>
<xsl:choose>
<xsl:when test="autoIncludeSystem/autoincludesystem_info/@mdate"> <!-- if attribute exists-->
<p>
<dd><table border="1">
<tbody>
<tr>
<th>File Name</th>
<th>File Size</th>
<th>Date</th>
<th>Time</th>
<th>AM/PM</th>
</tr>
<xsl:for-each select="autoIncludeSystem/autoincludesystem_info">
<tr>
<td valign="top" ><xsl:value-of select="@filename"/></td>
<td valign="top" ><xsl:value-of select="@filesize"/></td>
<td valign="top" ><xsl:value-of select="@mdate"/></td>
<td valign="top" ><xsl:value-of select="@mtime"/></td>
<td valign="top" ><xsl:value-of select="@ampm"/></td>
</tr>
</xsl:for-each>
</tbody>
</table>
</dd>
</p>
</xsl:when>
<xsl:otherwise> <!-- if attribute does not exists -->
<dd><pre>
<xsl:value-of select="autoIncludeSystem"/><br/>
</pre></dd> <br/>
</xsl:otherwise>
</xsl:choose>
我的输出
关于xml - XSL if else 条件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7239308/