我有一个字符串strXml 是xml格式：
XML code:
strXml="
<ListConferenceResponse xmlns="http://mediax.huawei.com/webservice/types">
<code xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xsd:int">200</code>
<description xmlns="">Success</description>
<page xmlns="">
<index>1</index>
<total>1</total>
<hasPrev>false</hasPrev>
<hasNext>false</hasNext>
<hasFirst>false</hasFirst>
<hasLast>false</hasLast>
<data>
<entry>
<key>StartTime</key>
<value>1274137920000</value>
</entry>
<entry>
<key>Subject</key>
<value>voice test</value>
</entry>
<entry>
<key>ConferenceID</key>
<value>1237954196</value>
</entry>
<entry>
<key>SubConferenceID</key>
<value>0</value>
</entry>
<entry>
<key>ConferenceState</key>
<value>Schedule</value>
</entry>
<entry>
<key>Length</key>
<value>121</value>
</entry>
<entry>
<key>organizationID</key>
<value>topOrganization</value>
</entry>
</data>
</page&
