解析XML與C＃

我有這樣的XML響應，我從ARIN獲得：解析XML與C＃

<nets xmlns="http://www.arin.net/whoisrws/core/v1" xmlns:ns2="http://www.arin.net/whoisrws/rdns/v1" xmlns:ns3="http://www.arin.net/whoisrws/netref/v2" termsOfUse="https://www.arin.net/whois_tou.html"> 
    <limitExceeded limit="256">false</limitExceeded> 
    <net termsOfUse="https://www.arin.net/whois_tou.html"> 
     <registrationDate>2003-05-09T16:14:30-04:00</registrationDate> 
     <ref>http://whois.arin.net/rest/net/NET-216-113-160-0-1</ref> 
     <ns2:delegations termsOfUse="https://www.arin.net/whois_tou.html"> 
      <ns2:delegationRef name="186.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/186.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="165.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/165.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="173.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/173.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="189.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/189.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="169.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/169.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="167.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/167.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="171.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/171.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="166.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/166.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="190.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/190.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="188.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/188.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="176.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/176.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="172.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/172.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="170.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/170.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="191.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/191.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="174.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/174.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="162.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/162.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="185.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/185.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="180.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/180.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="168.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/168.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="175.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/175.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="161.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/161.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="179.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/179.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="177.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/177.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="183.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/183.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="181.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/181.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="187.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/187.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="163.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/163.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="184.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/184.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="160.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/160.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="182.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/182.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="178.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/178.113.216.in-addr.arpa.</ns2:delegationRef> 
      <ns2:delegationRef name="164.113.216.in-addr.arpa.">http://whois.arin.net/rest/rdns/164.113.216.in-addr.arpa.</ns2:delegationRef> 
     </ns2:delegations> 
     <endAddress>216.113.191.255</endAddress> 
     <handle>NET-216-113-160-0-1</handle> 
     <name>EBAY-QA-IT-1</name> 
     <netBlocks> 
      <netBlock> 
       <cidrLength>19</cidrLength> 
       <endAddress>216.113.191.255</endAddress> 
       <description>Direct Assignment</description> 
       <type>DS</type> 
       <startAddress>216.113.160.0</startAddress> 
      </netBlock> 
     </netBlocks> 
     <pocs termsOfUse="https://www.arin.net/whois_tou.html"/> 
     <orgRef name="eBay, Inc" handle="EBAY">http://whois.arin.net/rest/org/EBAY</orgRef> 
     <parentNetRef name="NET216" handle="NET-216-0-0-0-0">http://whois.arin.net/rest/net/NET-216-0-0-0-0</parentNetRef> 
     <startAddress>216.113.160.0</startAddress> 
     <updateDate>2012-03-02T08:03:18-05:00</updateDate> 
     <version>4</version> 
    </net> 
</nets>

我想獲得這樣的信息：

http://whois.arin.net/rest/org/EBAY

從這一行：

<orgRef name="eBay, Inc" handle="EBAY">http://whois.arin.net/rest/org/EBAY</orgRef>

如何使用C＃獲取此信息？

來源

2012-10-09 Sugitime

我只是想解析XML w/XmlReader，但它似乎是矯枉過正。也許有人可以幫助我確定我可以使用哪些正則表達式規則？ – Sugitime

@Sugitime正則表達式不適合解析XML。爲什麼不使用Linq-To-XML或XmlReader？這就是他們的目標。 –

@Sugitime，請不要嘗試使用正則表達式來解析XML，這會讓它更難，更不容易。請參閱http://stackoverflow.com/a/1732454/383710 – DaveShaw

使用LINQ的XML（在.net 3.5，並提供更大的），你可以使用下面的代碼片段做：

XNamespace xns = "http://www.arin.net/whoisrws/core/v1"; //The default xmlns from the root element. 

var orgRefHandle = 
    XDocument.Parse(xml) 
    .Root 
    .Element(xns + "net") 
    .Element(xns + "orgRef") 
    .Attribute("handle").Value;

來源

2012-10-09 22:39:57 DaveShaw

太棒了。 Linq輕鬆而好地完成了這個訣竅。非常感謝！ – Sugitime

@Sugitime - 酷。您可能想要查看http://LinqPad.net，以便輕鬆測試Linq-Xml。 – DaveShaw

一種方法是使用XmlDocument：

XmlDocument xmlDoc = new XmlDocument(); 
xmlDoc.LoadXml(xmlString); 

foreach(XmlElement ele in xmlDoc.DocumentElement.GetElementsByTagName("net")) 
{ 
    // Writes value to console. 
    Console.WriteLine(((XmlElement)ele.GetElementsByTagName("orgRef")).Attributes["handle"].Value); 
}

來源

2012-10-09 22:40:28 CrazyCasta

這也行得通，但Linq更容易。 – Sugitime

是的，我也不確定你是否想要處理多個網元的能力。 – CrazyCasta

負載將內容轉換爲XmlDocument，然後您可以使用XPath查詢來使用SelectSingleNode獲取節點的屬性：/nets/limitexceeded/net/orgref/@Name並獲取該值。

來源

2012-10-09 22:40:44

回答

相關問題