如何快速处理xml文件信息
这个范例是帮一个朋友做的，他写的处理代码速度是1笔/0.3秒，我重新写的代码运行数据1000笔/0.3秒。速度提升1000倍。代码如下。
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1、待处理的xml字符串数据
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<Positions from="51Job">
<Company>
<CorpName><![CDATA[北京XXXX有限公司]]></CorpName>
<OfficeAddr1><![CDATA[北京市海淀区XXX大厦XXX座XXX层]]></OfficeAddr1>
<OffPostCode1><![CDATA[100086]]></OffPostCode1>
<CompanySize><![CDATA[XXX人以上]]></CompanySize>
<TradeCodes>
<TradeCode><![CDATA[办公用品及设备]]></TradeCode>
<TradeCode><![CDATA[计算机硬件]]></TradeCode>
</TradeCodes>
<AboutUs><![CDATA[XXX数码办公企业创建于XXXX年XX月，历经XXXX年的发展，目前已成为以XXXX为中心的全国性股份制公司，旗下拥有XX家专业公司，分布于北京、上海、广州、武汉、成都、西安、长沙和南昌等核心城市，注册资金5000万元，在职员工近500名。 秉承“先进的技术、优质的产品、完善的服务、合理的价格”的经营理念，自公司创立以来，本公司的销售、技术服务、研发等高素质人才为各行各业的客户提供着从需求分析、产品咨询、专业培训、网络建设、软件开发、软件应用培训及维护、硬件销售、保养及维修、各种消耗品供应等一条龙的量身定做的专业化、规范化、人性化服务。 泰和数码办公企业重视培养人才，实行任人唯贤的人力资源政策，积极培养有理想、有道德、有责任感、有协作精神的现代化员工队伍，同时积极引进先进的管理理念，采用规范化、科学化的管理方法不断壮大自身实力。 公司始终坚持人才与企业共同发展的理念，关注员工的技能培训及发展，并不断加强企业文化的营建。公司业务的持续高速发展，也为员工担供了极大的发展空间。多元化的企业文化、以人为本的经营管理理念证明了泰和是一个良好的发展平台。 公司网站 http://www.XXXX.com.cn]]></AboutUs>
<Websites>
<Website><![CDATA[http://www.techhero.com.cn]]></Website>
</Websites>
<Informations>
<Information>
<Contact><![CDATA[人力资源部]]></Contact>
<Addr><![CDATA[XXX市XXX区XX路XXX号XXX大厦A座10层]]></Addr>
<OffPostCode><![CDATA[100086]]></OffPostCode>
</Information>
</Informations>
</Company>
<Position>
<ReleaseDate><![CDATA[2011-04-14]]></ReleaseDate>
<Description><![CDATA[岗位职责：１，主要负责杭州市内复印机等办公设备的日常保养和故障处理，维系客情关系；２，在为所负责区域的客户做保养或维修的同时进行硒鼓、纸张等办公耗材的销售工作。岗位要求：１，中专以上学历，计算机或电子类相关专业；２，熟悉杭州地形，能吃苦，有上进心；３，喜欢动手，有相关工作经验者优先。薪资福利：底薪＋提成＋工作餐＋五险一金＋高温补贴＋带薪培训＋免费体检＋节日费等]]></Description>
<PositionName><![CDATA[复印机维修工程师]]></PositionName>
<Number><![CDATA[5]]></Number>
<Education><![CDATA[中专]]></Education>
<Salary><![CDATA[2000-2999]]></Salary>
<Citys>
<City><![CDATA[杭州]]></City>
</Citys>
<Emails>
<Email><![CDATA[zhouqiaoyan@techhero.com.cn]]></Email>
</Emails>
<URLFrom>http://search.51job.com/job/45205821,c.html</URLFrom>
<SnapshoAddr>{117BD768-CA9A-4D75-9C47-BB30E638FCE2}.html</SnapshoAddr>
</Position>
</Positions>
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2、test01.aspx.cs代码如下
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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Collections.Generic;
using System.Xml;
namespace Test.xml
{
public partial class test01 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DateTime begin = System.DateTime.Now;
TimeSpan span = begin - begin;
Positions obj = new Positions();
int num = 10000;
for (int i = 0; i < num; i++)
{
this.MakeData(Server.MapPath("~/Xml/work.xml"), ref obj);
obj.Dispose();
}
DateTime end = DateTime.Now;
span = end - begin;
this.Page.Response.Write(string.Format("span = {0}<br/> begin = {1}<br/> end = {2}<br/>"
, span.ToString()
, begin.ToString("yyyy/MM/dd HH:mm:ss:fff")
, end.ToString("yyyy/MM/dd HH:mm:ss:fff")
));
}
}
/// <summary>
/// 处理xml数据主函数
/// 1、可以处理xml文件，见xdoc.Load(string xmlPath)
/// 2、可以处理xml字符串，见xdoc.Load(string xmlInfo)
/// 自己根据需要，调整函数参数和注释代码
/// </summary>
private void MakeData(string fpath,ref Positions obj)
{
string fpah = Server.MapPath("~/Xml/work.xml");
// xdoc.LoadXml(strXml);
System.Xml.XmlDocument xdoc = null;
try
{
xdoc = new System.Xml.XmlDocument();
xdoc.Load(fpah);
if (xdoc.ChildNodes.Count > 0)
{
obj = new Positions();
foreach (XmlNode node in xdoc.ChildNodes[0].ChildNodes)
{
this.MakePoints(node, obj);
}
}
}
catch (Exception ex)
{
//
}
finally
{
xdoc = null;
}
}
/// <summary>
/// 根据xml借点，处理该节点的子节点和属性，并将数据保存到自定义对象中
/// </summary>
/// <param name="node"></param>
/// <param name="obj"></param>
private void MakePoints(XmlNode node, Positions obj)
{
string name = node.Name.Trim();
switch (name)
{
case "Company":
{
this.Fun_Company(node, obj);
break;
}
case "Position":
{
this.Fun_Position(node, obj);
break;
}
}
}
/// <summary>
/// Company大节点解析处理数据，并且保存数据到自定义对象Company
/// </summary>
/// <param name="node"></param>
/// <param name="obj"></param>
protected void Fun_Company(XmlNode node, Positions obj)
{
obj.MyCompany = new Company
{
CorpName = node.SelectSingleNode("descendant::CorpName").InnerText,
OfficeAddr1 = this.Fun_Single(node, "OfficeAddr1", obj),
OffPostCode1 = this.Fun_Single(node, "OffPostCode1", obj),
CompanySize = this.Fun_Single(node, "CompanySize", obj),
AboutUs = this.Fun_Single(node, "AboutUs", obj),
};
this.Fun_Multi(node.SelectSingleNode("descendant::TradeCodes"), obj);
this.Fun_Multi(node.SelectSingleNode("descendant::Websites"), obj);
this.Fun_Multi(node.SelectSingleNode("descendant::Informations"), obj);
}
/// <summary>
/// Position大节点解析处理数据，并且保存数据到自定义对象Position
/// </summary>
/// <param name="node"></param>
/// <param name="obj"></param>
private void Fun_Position(XmlNode node, Positions obj)
{
obj.MyPosition = new Position
{
ReleaseDate = this.Fun_Single(node, "ReleaseDate", obj),
Description = this.Fun_Single(node, "Description", obj),
PositionName = this.Fun_Single(node, "PositionName", obj),
Number = this.Fun_Single(node, "Number", obj),
Education = this.Fun_Single(node, "Education", obj),
Salary = this.Fun_Single(node, "Salary", obj),
URLFrom = this.Fun_Single(node, "URLFrom", obj),
SnapshoAddr = this.Fun_Single(node, "SnapshoAddr", obj),
};
this.Fun_Multi(node.SelectSingleNode("descendant::Citys"), obj);
this.Fun_Multi(node.SelectSingleNode("descendant::Emails"), obj);
}
/// <summary>
/// 处理没有子节点的xml节点，并且保留所有数据到自定义对象
/// </summary>
/// <param name="node"></param>
/// <param name="child"></param>
/// <param name="obj"></param>
/// <returns></returns>
private string Fun_Single(XmlNode node, string child, Positions obj)
{
string resutl = "";
resutl = node.SelectSingleNode(string.Format("descendant::{0}", child)).InnerText;
return resutl;
}
/// <summary>
/// 处理有若干子节点的xml节点，并且保留所有数据到自定义对象
/// </summary>
/// <param name="node"></param>
/// <param name="obj"></param>
private void Fun_Multi(XmlNode node, Positions obj)
{
switch (node.Name)
{
case "TradeCodes":
{
foreach (XmlNode i in node.ChildNodes)
{
obj.MyCompany.TradeCodes.Add(i.InnerText);
}
break;
}
case "Informations":
{
foreach (XmlNode i in node.ChildNodes)
{
Dictionary<string, string> item = new Dictionary<string, string>();
obj.MyCompany.Informations.Add(item);
foreach (XmlNode j in i.ChildNodes)
{
item.Add(j.Name, j.InnerText);
}
}
break;
}
case "Websites":
{
foreach (XmlNode i in node.ChildNodes)
{
obj.MyCompany.Websites.Add(i.InnerText);
}
break;
}
case "Citys":
{
foreach (XmlNode i in node.ChildNodes)
{
obj.MyPosition.Citys.Add(i.InnerText);
}
break;
}
case "Emails":
{
foreach (XmlNode i in node.ChildNodes)
{
obj.MyPosition.Emails.Add(i.InnerText);
}
break;
}
}
}
}
/// <summary>
/// 根据Xml属性定义的类
/// </summary>
public class Positions : BaseClass
{
public Positions()
{
this.MyCompany = new Company();
this.MyPosition = new Position();
}
public Company MyCompany
{
get;
set;
}
public Position MyPosition
{
get;
set;
}
}
public class Company : BaseClass
{
public Company()
{
this.TradeCodes = new List<string>();
this.Websites = new List<string>();
this.Informations = new List<Dictionary<string, string>>();
}
public string CorpName
{
get;
set;
}
public string OfficeAddr1
{
get;
set;
}
public string OffPostCode1
{
get;
set;
}
public string CompanySize
{
get;
set;
}
public List<string> TradeCodes
{
get;
set;
}
public string AboutUs
{
get;
set;
}
public List<string> Websites
{
get;
set;
}
public List<Dictionary<string, string>> Informations
{
get;
set;
}
}
public class Position : BaseClass
{
public Position()
{
this.Citys = new List<string>();
this.Emails = new List<string>();
}
public string ReleaseDate
{
get;
set;
}
public string Description
{
get;
set;
}
public string PositionName
{
get;
set;
}
public string Number
{
get;
set;
}
public string Education
{
get;
set;
}
public string Salary
{
get;
set;
}
public List<string> Citys
{
get;
set;
}
public List<string> Emails
{
get;
set;
}
public string URLFrom
{
get;
set;
}
public string SnapshoAddr
{
get;
set;
}
}
public class BaseClass:IDisposable
{
public void Dispose()
{
}
}
}
3、测试结果：1000笔/0.3秒
