C# 创建及操作XML文件

XmlDocument doc = new XmlDocument();
            XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "GB2312", null);
            doc.AppendChild(dec);
            //创建一个根节点（一级）
            XmlElement root = doc.CreateElement("First");
            doc.AppendChild(root);
            //创建节点（二级）
            XmlNode node = doc.CreateElement("Seconde");
            //创建节点（三级）
            XmlElement element1 = doc.CreateElement("Third1");
            element1.SetAttribute("Name", "Sam");
            element1.SetAttribute("ID", "665");
            element1.InnerText = "Sam Comment";
            node.AppendChild(element1);

            XmlElement element2 = doc.CreateElement("Third2");
            element2.SetAttribute("Name", "Round");
            element2.SetAttribute("ID", "678");
            element2.InnerText = "Round Comment";
            node.AppendChild(element2);

           

            root.AppendChild(node);
            doc.Save(@"d:\bb.xml");
            Console.Write(doc.OuterXml);

 

 

 

 

写的一个XML操作类，包括读取/插入/修改/删除。

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;

namespace PuTianCheng
{
    /// <summary>
    /// XmlHelper 的摘要说明
    /// </summary>
    public class XmlHelper
    {
        public XmlHelper()
        {
        }

        /// <summary>
        /// 读取数据
        /// </summary>
        /// <param name="path">路径</param>
        /// <param name="node">节点</param>
        /// <param name="attribute">属性名，非空时返回该属性值，否则返回串联值</param>
        /// <returns>string</returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.Read(path, "/Node", "")
         * XmlHelper.Read(path, "/Node/Element[@Attribute='Name']", "Attribute")
         ************************************************/
        public static string Read(string path, string node, string attribute)
        {
            string value = "";
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xn = doc.SelectSingleNode(node);
                value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value);
            }
            catch { }
            return value;
        }

        /// <summary>
        /// 插入数据
        /// </summary>
        /// <param name="path">路径</param>
        /// <param name="node">节点</param>
        /// <param name="element">元素名，非空时插入新元素，否则在该元素中插入属性</param>
        /// <param name="attribute">属性名，非空时插入该元素属性值，否则插入元素值</param>
        /// <param name="value">值</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.Insert(path, "/Node", "Element", "", "Value")
         * XmlHelper.Insert(path, "/Node", "Element", "Attribute", "Value")
         * XmlHelper.Insert(path, "/Node", "", "Attribute", "Value")
         ************************************************/
        public static void Insert(string path, string node, string element, string attribute, string value)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xn = doc.SelectSingleNode(node);
                if (element.Equals(""))
                {
                    if (!attribute.Equals(""))
                    {
                        XmlElement xe = (XmlElement)xn;
                        xe.SetAttribute(attribute, value);
                    }
                }
                else
                {
                    XmlElement xe = doc.CreateElement(element);
                    if (attribute.Equals(""))
                        xe.InnerText = value;
                    else
                        xe.SetAttribute(attribute, value);
                    xn.AppendChild(xe);
                }
                doc.Save(path);
            }
            catch { }
        }

        /// <summary>
        /// 修改数据
        /// </summary>
        /// <param name="path">路径</param>
        /// <param name="node">节点</param>
        /// <param name="attribute">属性名，非空时修改该节点属性值，否则修改节点值</param>
        /// <param name="value">值</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.Insert(path, "/Node", "", "Value")
         * XmlHelper.Insert(path, "/Node", "Attribute", "Value")
         ************************************************/
        public static void Update(string path, string node, string attribute, string value)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xn = doc.SelectSingleNode(node);
                XmlElement xe = (XmlElement)xn;
                if (attribute.Equals(""))
                    xe.InnerText = value;
                else
                    xe.SetAttribute(attribute, value);
                doc.Save(path);
            }
            catch { }
        }

        /// <summary>
        /// 删除数据
        /// </summary>
        /// <param name="path">路径</param>
        /// <param name="node">节点</param>
        /// <param name="attribute">属性名，非空时删除该节点属性值，否则删除节点值</param>
        /// <param name="value">值</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.Delete(path, "/Node", "")
         * XmlHelper.Delete(path, "/Node", "Attribute")
         ************************************************/
        public static void Delete(string path, string node, string attribute)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xn = doc.SelectSingleNode(node);
                XmlElement xe = (XmlElement)xn;
                if (attribute.Equals(""))
                    xn.ParentNode.RemoveChild(xn);
                else
                    xe.RemoveAttribute(attribute);
                doc.Save(path);
            }
            catch { }
        }
    }
}

==================================================

XmlFile.xml：
<?xml version="1.0" encoding="utf-8"?>
<Root />

==================================================

使用方法：

string xml = Server.MapPath("XmlFile.xml");
//插入元素
//XmlHelper.Insert(xml, "/Root", "Studio", "", "");
//插入元素/属性
//XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "小路工作室");
//XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "丁香鱼工作室");
//XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "谱天城工作室");
//XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Master", "", "红尘静思");
//插入属性
//XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='小路工作室']", "", "Url", "http://www.wzlu.com/");
//XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='丁香鱼工作室']", "", "Url", "http://www.luckfish.net/");
//XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "", "Url", "http://www.putiancheng.com/");
//修改元素值
//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']/Master", "", "RedDust");
//修改属性值
//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Url", "http://www.putiancheng.net/");
//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Name", "PuTianCheng Studio");
//读取元素值
//Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site/Master", "") + "</div>");
//读取属性值
//Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site", "Url") + "</div>");
//读取特定属性值
//Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site[@Name='丁香鱼工作室']", "Url") + "</div>");
//删除属性
//XmlHelper.Delete(xml, "/Root/Studio/Site[@Name='小路工作室']", "Url");
//删除元素
//XmlHelper.Delete(xml, "/Root/Studio", "");

 

-----分析XML数据-------

 

<? xml version="1.0" encoding="utf-8"  ?>
< FlowER >  
   < SuccessFlag >True </ SuccessFlag >
   < ReturnInfo >
     < ApproveRow >
       < App_Serial >1 </ App_Serial >
       < App_Emp_ID >057274 </ App_Emp_ID >
       < App_Emp_Name >彭媛(YUAN.PENGY) </ App_Emp_Name >
       < App_YN ></ App_YN >
       < App_Date >2012/06/27 14:55:26 </ App_Date >
       < App_Act_ID >057274 </ App_Act_ID >
       < App_Act_Name >彭媛(YUAN.PENGY)  </ App_Act_Name >
       < App_Remark > <![CDATA[]]> </ App_Remark >
       < App_Assigner >SYS.EMP.0 </ App_Assigner >
       < App_Login_Name >YUAN.PENGY </ App_Login_Name >
       < Form_Approve_ID >ALIFMAP2805633 </ Form_Approve_ID >
       < Form_Kind >SYS.FORM.031 </ Form_Kind >
       < Form_NO >1000024 </ Form_NO >
       < Phase_ID >SYS.FORM.031.APPH.1 </ Phase_ID >
       < App_Type >A </ App_Type >
       < Assign_Type >N </ Assign_Type >
       < App_Status >T </ App_Status >
       < App_Role > <![CDATA[ 财务初审/Finance Initial ]]> </ App_Role >
       < Assign_Reason > <![CDATA[ \r\n转签原因 : 1 ]]> </ Assign_Reason >
     </ ApproveRow >
     < ApproveRow >
       < App_Serial >1 </ App_Serial >
       < App_Emp_ID >045862 </ App_Emp_ID >
       < App_Emp_Name >张建平(JIANPING.ZHANGJP) </ App_Emp_Name >
       < App_YN ></ App_YN >
       < App_Date ></ App_Date >
       < App_Act_ID ></ App_Act_ID >
       < App_Act_Name >张建平(JIANPING.ZHANGJP)  </ App_Act_Name >
       < App_Remark > <![CDATA[]]> </ App_Remark >
       < App_Assigner >057274 </ App_Assigner >
       < App_Login_Name >JIANPING.ZHANGJP </ App_Login_Name >
       < Form_Approve_ID >ALIFMAP2805649 </ Form_Approve_ID >
       < Form_Kind >SYS.FORM.031 </ Form_Kind >
       < Form_NO >1000024 </ Form_NO >
       < Phase_ID >SYS.FORM.031.APPH.1 </ Phase_ID >
       < App_Type >A </ App_Type >
       < Assign_Type >T </ Assign_Type >
       < App_Status >U </ App_Status >
       < App_Role > <![CDATA[ [彭媛(YUAN.PENGY) Transferred] ]]> </ App_Role >
       < Assign_Reason > <![CDATA[]]> </ Assign_Reason >
     </ ApproveRow >
     < ApproveRow >
       < App_Serial >2 </ App_Serial >
       < App_Emp_ID >013307 </ App_Emp_ID >
       < App_Emp_Name >陈春波(CHUNBO.CHENCB) </ App_Emp_Name >
       < App_YN ></ App_YN >
       < App_Date ></ App_Date >
       < App_Act_ID ></ App_Act_ID >
       < App_Act_Name >陈春波(CHUNBO.CHENCB)  </ App_Act_Name >
       < App_Remark > <![CDATA[]]> </ App_Remark >
       < App_Assigner >SYS.EMP.0 </ App_Assigner >
       < App_Login_Name >CHUNBO.CHENCB </ App_Login_Name >
       < Form_Approve_ID >ALIFMAP2805636 </ Form_Approve_ID >
       < Form_Kind >SYS.FORM.031 </ Form_Kind >
       < Form_NO >1000024 </ Form_NO >
       < Phase_ID >SYS.FORM.031.APPH.3 </ Phase_ID >
       < App_Type >A </ App_Type >
       < Assign_Type >N </ Assign_Type >
       < App_Status >W </ App_Status >
       < App_Role > <![CDATA[ 实际需求方上级主管/Actual Requester Manager ]]> </ App_Role >
       < Assign_Reason > <![CDATA[]]> </ Assign_Reason >
     </ ApproveRow >
   </ ReturnInfo >
</ FlowER >

 

 

 分析XML数据C#代码

 方法一

View Code

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

                 string strApproveName =  string.Empty;
                 string strFormStatus =  string.Empty;

                XmlNodeList nodeList = xmlDoc.SelectSingleNode( " /FlowER/ReturnInfo ").ChildNodes;

                 foreach (XmlNode node  in nodeList)
                {
                    strApproveName= string.Empty;
                    strFormStatus= string.Empty;

                    XmlElement xe1 = (XmlElement)node;
                     foreach (XmlNode xd  in xe1.ChildNodes)
                    {
                        XmlElement xe2=(XmlElement)xd;
                         if (xe2.Name.ToUpper() ==  " APP_STATUS ")
                        {
                            strFormStatus = xe2.InnerText.ToUpper();
                        }
                         if (xe2.Name.ToUpper() ==  " APP_EMP_NAME ")
                        {
                            strApproveName = xe2.InnerText;
                        }
                    }
                     if (strFormStatus ==  " U ")
                    {
                         break;
                    }
                }

 方法二

 

View Code

  string approveName =  "";
                 using (XmlReader xmlReader = XmlTextReader.Create( new StringReader(returnXml)))
                {

                     string appEmpName =  "";
                     string appYn =  " appYn ";
                     string appDate =  "";
                     while (xmlReader.Read())
                    {
                         if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName ==  " App_Emp_Name ")
                        {
                            appEmpName = xmlReader.ReadString();
                        }
                         if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName ==  " App_YN ")
                        {
                            appYn = xmlReader.ReadString();
                        }
                         if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName ==  " App_Date ")
                        {
                            appDate = xmlReader.ReadString();
                        }
                         if (xmlReader.NodeType == XmlNodeType.EndElement && xmlReader.LocalName ==  " ApproveRow ")
                        {
                             if (appYn.Length ==  0 && appDate.Length ==  0)
                            {
                                approveName = appEmpName;
                                 break;
                            }
                        }
                    }
                }