前一段时间做花旗的接口，返回的xml格式是带有命名空间的，可是难倒了我，找了好久才找到解决办法，给大家分享下，少走弯路。
1，直接进入正题，先看一段带有命名空间的xml，这段xml大概的意思是，前面是header信息，后面是body中的信息，body中有不少的节点，主要的是
<ns6:RewardDetail>节点，这个节点包含了很多的<ns8:RedemptionDetails>节点，和一个<ns8:CurrentRewardStatementDetails>节点以及后续以ns8开头的节点。
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"> <SOAP-ENV:Header> <ns0:RsHeader xmlns:ns0="http://www.citi.com/gcgi/shared/system/header"> <ns0:DateAndTimeStamp>2014-05-29T02:17:07.634-04:00</ns0:DateAndTimeStamp> <ns0:UUID>55555461</ns0:UUID> <ns0:ESBUUID>8dc47a89-3e3b-4b17-a631-938b848447ed</ns0:ESBUUID> <ns0:ResponseCode>EC_6000_0</ns0:ResponseCode> </ns0:RsHeader> </SOAP-ENV:Header> <SOAP-ENV:Body> <ns6:RewardDetailInqRs xmlns:ns="http://www.citi.com/gcgi/services/common/addressandcontact/v5_5_0_0" xmlns:ns5="http://www.citi.com/gcgi_prov/services/cards/reward/v6_0_0_0" xmlns:ns6="http://www.citi.com/gcgi/services/cards/reward/v6_0_0_0" xmlns:pfx="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns7="http://www.citi.com/gcgi_prov/entities/cards/reward/v6_0_0_0" xmlns:ns8="http://www.citi.com/gcgi/entities/cards/reward/v6_0_0_0" xmlns:ns2="http://www.citi.com/gcgi/entities/common/customer/v5_9_0_0" xmlns:pd="http://xmlns.tibco.com/bw/process/2003" xmlns:ns1="http://www.citi.com/gcgi/services/common/addressandcontact/v6_0_0_0" xmlns:ns4="http://www.citi.com/gcgi/shared/system/systemtypes" xmlns:ns3="http://www.citi.com/gcgi/shared/system/header" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:pfx2="http://www.citi.com/gcgi/entities/common/customer/v6_0_0_0"> <ns6:Base> <ns3:RsHeader> <ns3:DateAndTimeStamp>2014-05-29T02:17:07.634-04:00</ns3:DateAndTimeStamp> <ns3:UUID>55555461</ns3:UUID> <ns3:ESBUUID>8dc47a89-3e3b-4b17-a631-938b848447ed</ns3:ESBUUID> <ns3:ResponseCode>EC_6000_0</ns3:ResponseCode> </ns3:RsHeader> <ns6:RewardDetail> <ns8:RedemptionDetails> <ns8:RedemptionNo>99798493499998</ns8:RedemptionNo> <ns8:RedemptionStatus>F</ns8:RedemptionStatus> <ns8:RedemptionDetails> <ns8:RedemptionNo>99798496299998</ns8:RedemptionNo> <ns8:RedemptionStatus>F</ns8:RedemptionStatus> <ns8:RedemptionMiniDetails> <ns8:RedemptionProgram>1</ns8:RedemptionProgram> <ns8:RedemptionBonusProgram>0</ns8:RedemptionBonusProgram> <ns8:RedemptionLevel>00006</ns8:RedemptionLevel> <ns8:RedemptionQuantity>99900</ns8:RedemptionQuantity> </ns8:RedemptionMiniDetails> <ns8:RedemptionPoints>9.9995E8</ns8:RedemptionPoints> <ns8:RedemptionAmount>0.0E0</ns8:RedemptionAmount> <ns8:RedemptionDescription>50 RMB CASH REBATE</ns8:RedemptionDescription> <ns8:CreatorId>RWBGBD08</ns8:CreatorId> <ns8:RedemptionDate>2015-02-06</ns8:RedemptionDate> </ns8:RedemptionDetails> <ns8:RedemptionDetails> <ns8:RedemptionNo>99798499299998</ns8:RedemptionNo> <ns8:RedemptionStatus>F</ns8:RedemptionStatus> <ns8:RedemptionMiniDetails> <ns8:RedemptionProgram>1</ns8:RedemptionProgram> <ns8:RedemptionBonusProgram>0</ns8:RedemptionBonusProgram> <ns8:RedemptionLevel>00006</ns8:RedemptionLevel> <ns8:RedemptionQuantity>2480</ns8:RedemptionQuantity> </ns8:RedemptionMiniDetails> <ns8:RedemptionPoints>1.24E6</ns8:RedemptionPoints> <ns8:RedemptionAmount>0.0E0</ns8:RedemptionAmount> <ns8:RedemptionDescription>50 RMB CASH REBATE</ns8:RedemptionDescription> <ns8:CreatorId>RWBGBD08</ns8:CreatorId> <ns8:RedemptionDate>2015-01-07</ns8:RedemptionDate> </ns8:RedemptionDetails> <ns8:CurrentRewardStatementDetails> <ns8:Sales>0.0E0</ns8:Sales> <ns8:Beginning>9.80000008E10</ns8:Beginning> <ns8:Earned>0.0E0</ns8:Earned> <ns8:Bonus>0.0E0</ns8:Bonus> <ns8:Adjusted>0.0E0</ns8:Adjusted> <ns8:Redeemed>1.914E5</ns8:Redeemed> <ns8:Available>9.79998094E10</ns8:Available> </ns8:CurrentRewardStatementDetails> <ns8:EnrolProgram>1</ns8:EnrolProgram> <ns8:Description>YUPPIES</ns8:Description> <ns8:EnrolmentIndicator>Y</ns8:EnrolmentIndicator> <ns8:FlagTime>00:00:00</ns8:FlagTime> <ns8:MembershipStatus>A</ns8:MembershipStatus> </ns6:RewardDetail> </ns6:Base> </ns6:RewardDetailInqRs> </SOAP-ENV:Body> </SOAP-ENV:Envelope>
2，这一步我们,要开始解析xml，当然准备工作也是要做的，命名空间一定要引用using System.Xml，怎么处理命名空间这一步也将处理。
实例化一个xml命名空间管理器，然后将不同的命名空间加入管理器中，这些命名空间我们从哪里找呢？很显然我们要从xml文档中把他们找出来
xml文档中只要是带有这种 （xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"）的都是命名空间，要把解析时候要用的
命名空间加入命名空间管理器。
XmlDocument doc = new XmlDocument(); doc.LoadXml(“xml字符串”); XmlNamespaceManager nsMgr = new XmlNamespaceManager(doc.NameTable);//这一步实例化一个xml命名空间管理器 nsMgr.AddNamespace("SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/"); nsMgr.AddNamespace("ns", "http://www.citi.com/gcgi/services/common/addressandcontact/v5_5_0_0"); nsMgr.AddNamespace("ns0", "http://www.citi.com/gcgi/shared/system/header"); nsMgr.AddNamespace("ns1", "http://www.citi.com/gcgi/services/common/addressandcontact/v6_0_0_0"); nsMgr.AddNamespace("ns2", "http://www.citi.com/gcgi/entities/common/customer/v5_9_0_0"); nsMgr.AddNamespace("ns3", "http://www.citi.com/gcgi/shared/system/header"); nsMgr.AddNamespace("ns4", "http://www.citi.com/gcgi/shared/system/systemtypes"); nsMgr.AddNamespace("ns5", "http://www.citi.com/gcgi_prov/services/cards/reward/v6_0_0_0"); nsMgr.AddNamespace("ns6", "http://www.citi.com/gcgi/services/cards/reward/v6_0_0_0"); nsMgr.AddNamespace("ns7", "http://www.citi.com/gcgi_prov/entities/cards/reward/v6_0_0_0"); nsMgr.AddNamespace("ns8", "http://www.citi.com/gcgi/entities/cards/reward/v6_0_0_0");
3，为了接收xml中的值，我新建了一个类
public class RedemptionDetails { public string RedemptionNo { get; set; } public string RedemptionStatus { get; set; } public string RedemptionPoints { get; set; } public string RedemptionAmount { get; set; } public string RedemptionDescription { get; set; } public string CreatorId { get; set; } public string RedemptionDate { get; set; } public string RedemptionProgram { get; set; } public string RedemptionBonusProgram { get; set; } public string RedemptionLevel { get; set; } public string RedemptionQuantity { get; set; } }
4，下面的代码是我具体的实现解析到我需要的具体值，这些也不做过多的解释，直接上代码
XmlNode ss = doc.SelectSingleNode("SOAP-ENV:Envelope/SOAP-ENV:Body/ns6:RewardDetailInqRs/ns6:Base", nsMgr); if (ss != null) { XmlNode code = ss.SelectSingleNode("ns3:RsHeader/ns3:ResponseCode", nsMgr); detail.ResponseCode = code.InnerText.Split('_')[2] == "0" ? "0000" : code.InnerText.Split('_')[2]; ; XmlNode current = ss.SelectSingleNode("ns6:RewardDetail", nsMgr).SelectSingleNode("ns8:CurrentRewardStatementDetails", nsMgr); string Avaliable = current.SelectSingleNode("ns8:Available", nsMgr).InnerText; detail.Available = ConvertToPoint(Avaliable); string Redeemed = current.SelectSingleNode("ns8:Redeemed", nsMgr).InnerText; detail.Redeemed = ConvertToPoint(Redeemed); XmlNodeList RedemptionDetailsList = ss.SelectSingleNode("ns6:RewardDetail", nsMgr).SelectNodes("ns8:RedemptionDetails", nsMgr); List<RedemptionDetails> ListDetail = new List<RedemptionDetails>(); for (int i = 0; i < RedemptionDetailsList.Count; i++) { RedemptionDetails redemptionDetails = new RedemptionDetails(); redemptionDetails.RedemptionNo = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionNo", nsMgr).InnerText; if (RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionStatus", nsMgr) != null) { redemptionDetails.RedemptionStatus = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionStatus", nsMgr).InnerText; } else { redemptionDetails.RedemptionStatus = ""; } string RedemptionPoints = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionPoints", nsMgr).InnerText; redemptionDetails.RedemptionPoints = ConvertToPoint(RedemptionPoints); string RedemptionAmount = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionAmount", nsMgr).InnerText; redemptionDetails.RedemptionAmount =ConvertToPoint(RedemptionAmount); redemptionDetails.RedemptionDescription = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionDescription", nsMgr).InnerText; redemptionDetails.CreatorId = RedemptionDetailsList[i].SelectSingleNode("ns8:CreatorId", nsMgr).InnerText; redemptionDetails.RedemptionDate = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionDate", nsMgr).InnerText; redemptionDetails.RedemptionProgram = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionMiniDetails/ns8:RedemptionProgram", nsMgr).InnerText; redemptionDetails.RedemptionBonusProgram = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionMiniDetails/ns8:RedemptionBonusProgram", nsMgr).InnerText; redemptionDetails.RedemptionLevel = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionMiniDetails/ns8:RedemptionLevel", nsMgr).InnerText; redemptionDetails.RedemptionQuantity = RedemptionDetailsList[i].SelectSingleNode("ns8:RedemptionMiniDetails/ns8:RedemptionQuantity", nsMgr).InnerText; ListDetail.Add(redemptionDetails); } detail.ListDetail = ListDetail; }
5，本例子到此结束，没有什么高深的东西，很简单的东西可能之前没用过而已，希望对大家有所帮助，这也是我现实中遇到的问题，和大家分享下。
shixudong3@yeah.net