如何在.net中读取不同层次结构的xml文件
本文关键字：层次结构 xml 文件 读取 net | 更新日期: 2023-09-27 18:09:51
我有一个大的7GB的xml文件，我在这里粘贴了一小部分
<?xml version="1.0" encoding="UTF-8"?>
<bulkFile xmlns:un="utranNrm.xsd"
xmlns:es="Attributes.15.25.xsd"
xmlns:xn="generic.xsd" xmlns:gn="geran.xsd" xmlns="configData.xsd">
<fileHeader fileFormatVersion="32.615 V4.5" Name="Wmart"/>
<configData dnPrefix="Undefined">
<xn:SubNetwork id="M_ROOT">
<xn:VsDataContainer id="1">
<xn:attributes>
<xn:vsDataType>vsDataAreas</xn:vsDataType>
<xn:vsDataFormatVersion>SpecificAttributes</xn:vsDataFormatVersion>
<es:vsDataAreas/>
</xn:attributes>
<xn:VsDataContainer id="424_2_2">
<xn:attributes>
<xn:vsDataType>vsDataPlmn</xn:vsDataType>
<xn:vsDataFormatVersion>SpecificAttributes</xn:vsDataFormatVersion>
<es:vsDataPlmn>
<es:userLabel></es:userLabel>
<es:mcc>424</es:mcc>
<es:mnc>2</es:mnc>
<es:mncLength>2</es:mncLength>
<es:aliasPlmnIdentities>
<es:mcc>424</es:mcc>
<es:mnc>2</es:mnc>
<es:mncLength>2</es:mncLength>
</es:aliasPlmnIdentities>
</es:vsDataPlmn>
</xn:attributes>
<xn:VsDataContainer id="10">
<xn:attributes>
<xn:vsDataType>vsDataLocationArea</xn:vsDataType>
<xn:vsDataFormatVersion>SpecificAttributes</xn:vsDataFormatVersion>
<es:vsDataLocationArea>
<es:userLabel></es:userLabel>
<es:lac>10</es:lac>
<es:t3212>10</es:t3212>
<es:att>1</es:att>
</es:vsDataLocationArea>
</xn:attributes>
</xn:VsDataContainer>
</xn:VsDataContainer>
</xn:VsDataContainer>
<xn:SubNetwork id="G-Mum">
<xn:attributes>
<xn:userDefinedNetworkType>SiteSolutions</xn:userDefinedNetworkType>
<xn:userLabel>G-Mum</xn:userLabel>
</xn:attributes>
<xn:MeContext id="32509_I_East">
<xn:VsDataContainer id="23502_I_AAN_UAEU_Crescent_East">
<xn:attributes>
<xn:vsDataType>vsDataMeContext</xn:vsDataType>
<xn:vsDataFormatVersion>EricssonSpecificAttributes.15.25</xn:vsDataFormatVersion>
<es:vsDataMeContext>
<es:userLabel>23502_I_AAN_UAEU_Crescent_East</es:userLabel>
<es:ipAddress>10.235.20.10</es:ipAddress>
<es:neMIMversion>vF.1.108</es:neMIMversion>
<es:lostSynchronisation>SYNCHRONISED</es:lostSynchronisation>
<es:bcrLastChange>1474785017888</es:bcrLastChange>
<es:bctLastChange>1470699087457</es:bctLastChange>
<es:multiStandardRbs6k>false</es:multiStandardRbs6k>
<es:mixedModeRadio>false</es:mixedModeRadio>
<es:mirrorMIBversion>F.1.100.S.1.6</es:mirrorMIBversion>
<es:stnNodes></es:stnNodes>
</es:vsDataMeContext>
</xn:attributes>
</xn:VsDataContainer>
<xn:ManagedElement id="1">
<xn:attributes>
</xn:attributes>
<xn:VsDataContainer id="1">
<xn:attributes>
<xn:vsDataType>vsDataManagedElement</xn:vsDataType>
<xn:vsDataFormatVersion>Attributes.15.25.xsd</xn:vsDataFormatVersion>
<es:vsDataManagedElement>
<es:siteRef>SubNetwork=M_ROOT,Site=32509_I_East</es:siteRef>
<es:productType>Node</es:productType>
<es:productName>RBS6601L</es:productName>
<es:productNumber></es:productNumber>
<es:productRevision></es:productRevision>
<es:prodDesignation>0</es:prodDesignation>
</es:vsDataManagedElement>
</xn:attributes>
</xn:VsDataContainer>
.
.
<xn:VsDataContainer id="1">
<xn:attributes>
<xn:vsDataType>vsDataENodeBFunction</xn:vsDataType>
<xn:vsDataFormatVersion>Attributes.15.25.xsd</xn:vsDataFormatVersion>
<es:vsDataENodeBFunction>
<es:userLabel></es:userLabel>
<es:dscpLabel>24</es:dscpLabel>
<es:dnsLookupOnTai>1</es:dnsLookupOnTai>
<es:eNBId>32509</es:eNBId>
</es:vsDataENodeBFunction>
</xn:attributes>
<xn:VsDataContainer id="BC_3250_32509_L1_B">
<xn:attributes>
<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
<es:earfcndl>1651</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
..
<xn:VsDataContainer id="BD_4250_32509_L1_B">
<xn:attributes>
<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
<es:earfcndl>1651</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
<xn:VsDataContainer id="eNBId250_32509_L1_C">
<xn:attributes>
<xn:vsDataType>testranCellFDD</xn:vsDataType>
<es:earfcndl>165</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
</xn:VsDataContainer>
..
</xn:ManagedElement>
</xn:MeContext>
<xn:MeContext id="32509_I_west">
<xn:VsDataContainer id="32509_I_AAN_UAEU_Crescent_East">
<xn:attributes>
<xn:vsDataType>vsDataMeContext</xn:vsDataType>
<xn:vsDataFormatVersion>Attributes.15.25</xn:vsDataFormatVersion>
<es:vsDataMeContext>
<es:userLabel>32509_I_AAN_UAEU_Crescent_East</es:userLabel>
<es:ipAddress>10.235.20.10</es:ipAddress>
<es:neMIMversion>vF.1.108</es:neMIMversion>
<es:lostSynchronisation>SYNCHRONISED</es:lostSynchronisation>
<es:bcrLastChange>1474785017888</es:bcrLastChange>
<es:bctLastChange>1470699087457</es:bctLastChange>
<es:multiStandardRbs6k>false</es:multiStandardRbs6k>
<es:mixedModeRadio>false</es:mixedModeRadio>
<es:mirrorMIBversion>F.1.100.S.1.6</es:mirrorMIBversion>
<es:stnNodes></es:stnNodes>
</es:vsDataMeContext>
</xn:attributes>
</xn:VsDataContainer>
<xn:ManagedElement id="1">
<xn:attributes>
</xn:attributes>
<xn:VsDataContainer id="1">
<xn:attributes>
<xn:vsDataType>vsDataManagedElement</xn:vsDataType>
<xn:vsDataFormatVersion>Attributes.15.25.xsd</xn:vsDataFormatVersion>
<es:vsDataManagedElement>
<es:siteRef>SubNetwork=M_ROOT,Site=32509_I_East</es:siteRef>
<es:productType>Node</es:productType>
<es:productName>RBS6601L</es:productName>
<es:productNumber></es:productNumber>
<es:productRevision></es:productRevision>
<es:prodDesignation>0</es:prodDesignation>
</es:vsDataManagedElement>
</xn:attributes>
</xn:VsDataContainer>
.
.
<xn:VsDataContainer id="1">
<xn:attributes>
<xn:vsDataType>vsDataENodeBFunction</xn:vsDataType>
<xn:vsDataFormatVersion>Attributes.15.25.xsd</xn:vsDataFormatVersion>
<es:vsDataENodeBFunction>
<es:userLabel></es:userLabel>
<es:dscpLabel>24</es:dscpLabel>
<es:dnsLookupOnTai>1</es:dnsLookupOnTai>
<es:eNBId>32509</es:eNBId>
</es:vsDataENodeBFunction>
</xn:attributes>
<xn:VsDataContainer id="CC_3250_32509_L1_B">
<xn:attributes>
<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
<es:earfcndl>1651</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
..
<xn:VsDataContainer id="CD_4250_32509_L1_B">
<xn:attributes>
<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
<es:earfcndl>1651</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
<xn:VsDataContainer id="DC_3250_32509_L1_C">
<xn:attributes>
<xn:vsDataType>testranCellFDD</xn:vsDataType>
<es:earfcndl>165</es:earfcndl>
<es:earfcnul>19651</es:earfcnul>
</xn:attributes>
</xn:VsDataContainer>
</xn:VsDataContainer>
..
</xn:ManagedElement>
</xn:MeContext>
</xn:SubNetwork>
</xn:SubNetwork>
</configData>
</bulkFile>
这里我想获得我声明的c#变量的值，如subnetwork, sitename, CC_3, cellname, earfcndl和earfcnul所有的信息都在根标签<xn:SubNetwork id="M_ROOT">标签下，所有的网站都在根下，这里我只粘贴一个网站的详细信息。逻辑是
subnetwork = <xn:SubNetwork id > attribute value
sitename = <xn:MeContext id> attribute value
eNBId = <es:eNBId> value, here the important thing is, there will be huge number of `<xn:VsDataContainer id="1">` parent tag,but the filtration is based on `<xn:vsDataType>` inner tag which is of `vsDataENodeBFunction`.
cellname = `<xn:VsDataContainer id>` attribute value and
`earfcndl` and `earfcnul` is values for `<es:earfcndl> and <es:earfcnul>` tag .Here also filtration is based on <xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
所以我想得到subnetwork = G-Mum,,sitename = 32509_I_East,,eNBId=32509,,cellname=BC_3250_32509_L1_B,,earfcndl=1651,,earfcnul=19651。
这里我做了下面的代码，但卡住了，不知道该怎么做。但我可以保证这是唯一的方法(xmlreader和(XElement)XNode.ReadFrom方法)，我们可以读取7Gb的Xml文件，其余的都将抛出"内存异常"
using (XmlReader xr = XmlReader.Create(path))
{
xr.MoveToContent();
XNamespace un = xr.LookupNamespace("un");
while (xr.Read())
{
while (xr.NodeType == XmlNodeType.Element && xr.NamespaceURI == un && xr.LocalName == "M_ROOT")
{
XElement pin = (XElement)XNode.ReadFrom(xr);
var data = from atts in pin.Elements(un + "attributes")
select new
{
eNBId= (string)atts.Element(es + "eNBId"),
}
}
}
编辑层次结构只有一个xn:SubNetwork id="M_ROOT"标签它包含了所有的区域像它又包含了所有的站点信息标签下又包含了所有的单元格信息类型vsDataEUtranCellFDD
编辑@jdweng感谢您的帮助，现在他们又增加了xml，现在我们使用(XElement)XElement. readfrom (reader)获取的xml片段;抛出内存不足异常。我如何删除不必要的xml部分。我的层次是
<xn:SubNetwork id="M_ROOT">--------------Root
<xn:SubNetwork id="G-Mum">---------Region
<xn:MeContext id="32509_I_East">-----sites
<xn:VsDataContainer id="BC_3250_32509_L1_B"> ---Cells
<xn:attributes>
<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>
</xn:MeContext>
</xn:SubNetwork>
</xn:SubNetwork>
所以我在我的问题上发表的任何东西都是必要的数据，其余的都是不必要的
编辑@jdweng，是的，我发布的内容都是必需的，我正在重新编辑我的问题。等级秩序是
`<xn:SubNetwork>` --------Root and only one
然后几行之后<xn:SubNetwork>包含的区域将作为组出现，但这里只有id以G-开头是有效的，所以这里是G-Mum然后<xn:MeContext>包含的站点将作为组出现，这些组再次包含大量<xn:VsDataContainer>，但这里一个包含子节点<xn:vsDataType>vsDataManagedElement</xn:vsDataType>是有效的，以便获得<es:eNBId>。然后再经过几行<xn:VsDataContainer>的子节点<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>包含细胞，这(细胞)是最内部的一个。因此将会有大量的<xn:VsDataContainer>，从中只有子节点<xn:vsDataType>vsDataENodeBFunction</xn:vsDataType>用于获取Enbid和<xn:vsDataType>vsDataEUtranCellFDD</xn:vsDataType>用于导入
编辑在分析了大文件后，我知道细胞是在网站下，但我把它贴在外面，即vsDataEUtranCellFDD是在标签vsDataENodeBFunction下。我已经编辑了我发布的xml
编辑10/10/16 xml的变化很小，在<xn:vsDataType>vsDataENodeBFunction</xn:vsDataType>的VsDataContainer之前有一个VsDataContainer，因为vsDataENodeBFunction没有被捕获。我使用Skip(1)，但没有工作vsDataManagedElement
您有一个非常大的文件，所以最好使用XmlReader。试试这段代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication16
{
class Program
{
const string FILENAME = @"c:'temp'test.xml";
enum State
{
GET_SUBNETWORK,
GET_MECONTEXT,
GET_CONTAINERS,
GET_SUBNETWORK_OR_MECONTEXT
}
static void Main(string[] args)
{
XmlReaderSettings settings = new XmlReaderSettings() { IgnoreWhitespace = true };
XmlReader reader = XmlReader.Create(FILENAME, settings);
reader.ReadToFollowing("SubNetwork", "generic.xsd");
Network.network.name = reader.GetAttribute("id");
Network.network.subnetworks = new List<SubNetwork>();
string xnNameSpace = reader.LookupNamespace("xn");
reader.ReadToFollowing("SubNetwork", xnNameSpace);
Sites newSite = null;
SubNetwork subNetWork = null;
Boolean endElement = false;
State state = State.GET_SUBNETWORK;
while (!reader.EOF)
{
switch (state)
{
case State.GET_SUBNETWORK:
if (reader.Name != "xn:SubNetwork")
{
reader.ReadToFollowing("SubNetwork", xnNameSpace);
}
if (!reader.EOF)
{
subNetWork = new SubNetwork();
Network.network.subnetworks.Add(subNetWork);
subNetWork.name = reader.GetAttribute("id");
subNetWork.sites = new List<Sites>();
state = State.GET_MECONTEXT;
}
break;
case State.GET_MECONTEXT :
if (reader.Name != "xn:MeContext")
{
if (reader.NodeType == XmlNodeType.EndElement)
{
endElement = true;
state = State.GET_SUBNETWORK;
}
else
{
endElement = false;
reader.ReadToFollowing("MeContext", xnNameSpace);
}
}
if (!reader.EOF && !endElement)
{
state = State.GET_CONTAINERS;
newSite = new Sites();
subNetWork.sites.Add(newSite);
newSite.sitename = reader.GetAttribute("id");
reader.ReadToFollowing("ManagedElement", xnNameSpace);
reader.ReadToFollowing("VsDataContainer", xnNameSpace);
}
break;
case State.GET_CONTAINERS:
if (!reader.EOF)
{
switch (reader.NodeType)
{
case XmlNodeType.EndElement:
state = State.GET_SUBNETWORK_OR_MECONTEXT;
break;
case XmlNodeType.Text:
string text = reader.ReadContentAsString();
break;
case XmlNodeType.Element:
string elementName = reader.Name;
XElement element = (XElement)XElement.ReadFrom(reader);
if (elementName == "xn:VsDataContainer")
{
XElement vsDataENodeBFunction = element.Descendants().Where(a => a.Name.LocalName == "vsDataENodeBFunction").FirstOrDefault();
if (vsDataENodeBFunction != null)
{
XElement eNBId = element.Descendants().Where(a => a.Name.LocalName == "eNBId").FirstOrDefault();
if (eNBId != null)
{
newSite.eNBId = (int)eNBId;
}
}
List<XElement> vsDataContainers = element.Descendants().Where(a => a.Name.LocalName == "VsDataContainer").ToList();
List<XElement> vsDataEUtranCellFDD = vsDataContainers.Where(x => x.Descendants().Where(a => (a.Name.LocalName == "vsDataType") && ((string)a == "vsDataEUtranCellFDD")).Any()).ToList();
if (vsDataEUtranCellFDD.Any())
{
List<CellName> cells = vsDataEUtranCellFDD.Select(x => new CellName()
{
id = (string)x.Attribute("id"),
earfcndl = (int)x.Descendants().Where(a => a.Name.LocalName == "earfcndl").FirstOrDefault(),
earfcnul = (int)x.Descendants().Where(a => a.Name.LocalName == "earfcnul").FirstOrDefault()
}).ToList();
if (newSite.cellName == null)
{
newSite.cellName = new List<CellName>();
}
newSite.cellName.AddRange(cells);
}
}
break;
default:
Console.WriteLine("Unexpected Results");
string elementText = reader.ReadContentAsString();
Console.ReadLine();
break;
}
}
break;
case State.GET_SUBNETWORK_OR_MECONTEXT :
switch(reader.NodeType)
{
case XmlNodeType.Element :
switch(reader.Name)
{
case "xn:MeContext" :
state = State.GET_MECONTEXT;
break;
case "xn:SubNetwork" :
state = State.GET_SUBNETWORK;
break;
default :
reader.ReadStartElement();
break;
}
break;
case XmlNodeType.Text:
string text = reader.ReadContentAsString();
break;
case XmlNodeType.EndElement:
reader.ReadEndElement();
break;
default:
Console.WriteLine("Unexpected Results");
string elementText = reader.ReadContentAsString();
Console.ReadLine();
break;
}
break;
}
}
}
}
public class Network
{
public static Network network = new Network();
public string name { get; set; }
public List<SubNetwork> subnetworks { get; set; }
}
public class SubNetwork
{
public string name { get; set; }
public List<Sites> sites { get; set; }
}
public class Sites
{
public string sitename { get; set; }
public int eNBId { get; set; }
public List<CellName> cellName { get; set; }
}
public class CellName
{
public string id { get; set; }
public int earfcndl { get; set; }
public int earfcnul { get; set; }
}
}
使用以下代码获取一小部分xml
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
namespace ConsoleApplication17
{
class Program
{
const string inputFilename = @"c:'temp'test.xml";
const string outputFilename = @"c:'temp'test.txt";
const int COPY_LINES = 10000;
static void Main(string[] args)
{
StreamReader reader = new StreamReader(inputFilename, Encoding.UTF8);
StreamWriter writer = new StreamWriter(outputFilename, false, Encoding.UTF8);
Boolean start = false;
int i = 0;
while (i < COPY_LINES)
{
string inputLine = reader.ReadLine();
if(inputLine.Contains("xn:SubNetwork id='"G-Mum'""))
{
start = true;
}
if (start)
{
writer.WriteLine(inputLine);
i++;
}
}
writer.Flush();
writer.Close();
MemoryStream stream = new MemoryStream(1000000);
}
}
}
下面应该修复earfcndl和earfcnl的问题
List<CellName> cells = new List<CellName>(); ;
foreach (XElement xelement in vsDataEUtranCellFDD)
{
CellName newCell = new CellName();
newCell.id = (string)xelement.Attribute("id");
XElement attribute = xelement.Descendants().Where(a => a.Name.LocalName == "vsDataEUtranCellFDD").FirstOrDefault();
newCell.earfcndl = (int?)attribute.Elements().Where(a => a.Name.LocalName == "earfcndl").FirstOrDefault();
newCell.earfcnul = (int)attribute.Elements().Where(a => a.Name.LocalName == "earfcnul").FirstOrDefault();
cells.Add(newCell);
}
}