如何从此XML的特定元素中检索文本？
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我试图第一次弄清楚Xmldocument。我无法弄清楚如何从xml文件中提取单个元素。我需要在xml文档中找到某个网址，并确定用户是否有权访问该网址，如果用户没有访问权限，则删除与该文章相关的xml。
我需要知道如何在以下xml中从
<url></url>
<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<searchdoc><results hits=\"3226\" time=\"0.33\" query=\"test\" suggest=\"test1\" filter=\"\" sort=\"relevance\" sortdir=\"desc\" start=\"1\" end=\"10\" currentpage=\"1\" lastpage=\"323\" startdate=\"0\" enddate=\"0\" xsl=\"Trane.xsl\">
<result no=\"1\"><url>c:\\RECYCLER\\S-1-5-21-3289705215-1832128825-2807327032-470872\\Dc115
\\test-files\\test.ppt</url><col>3</col><lastmodified>25 Feb 2011 20:14:41
GMT</lastmodified><indexdate>11 Mar 2011 20:40:17 GMT</indexdate><size>75264</size>
<title><highlight>Test</highlight></title><alpha>Test</alpha><keywords
/><contenttype>PPT</contenttype><context>Nutch Parser <highlight>Test</highlight> My
initial <highlight>test</highlight> file for the PowerPoint parser of nutch Second
page <highlight>Test</highlight> Of PowerPoint Extraction Some Unicode I do not know
the content and I can not read it, just gathered from other ppt-files: áéíóú Stephan
Strittmatter</context><description>Nutch Parser <highlight>Test</highlight> My initial
<highlight>test</highlight> file for the PowerPoint parser of nutch ...</description>
<language>en</language><score>100</score></result>
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