C#-XML操作类的代码实例详解

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{    ///     /// XmlHelper 的摘要说明    /// 
    public class XmlHelper    {        public XmlHelper()        {        }        ///         /// 读取数据        /// 
        /// 路径        /// 节点        /// 属性名，非空时返回该属性值，否则返回串联值        /// string                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;        }        ///         /// 插入数据        /// 
        /// 路径        /// 节点        /// 元素名，非空时插入新元素，否则在该元素中插入属性        /// 属性名，非空时插入该元素属性值，否则插入元素值        /// 值        ///                 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 { }        }        ///         /// 修改数据        /// 
        /// 路径        /// 节点        /// 属性名，非空时修改该节点属性值，否则修改节点值        /// 值        ///                 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 { }        }        ///         /// 删除数据        /// 
        /// 路径        /// 节点        /// 属性名，非空时删除该节点属性值，否则删除节点值        /// 值        ///                 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 { }        }    }}

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XmlFile.xml：

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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", "五月软件");//XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='五月软件]", "Master", "", "五月");//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='五月软件]", "", "Url", "http://www.vs2005.com.cn/");//修改元素值//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='五月软件]/Master", "", "Wuyue");//修改属性值//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='五月软件]", "Url", "http://www.vs2005.com.cn/");//XmlHelper.Update(xml, "/Root/Studio/Site[@Name='五月软件]", "Name", "MaySoft");//读取元素值//Response.Write("" + XmlHelper.Read(xml, "/Root/Studio/Site/Master", "") + "
");//读取属性值//Response.Write("" + XmlHelper.Read(xml, "/Root/Studio/Site", "Url") + "
");//读取特定属性值//Response.Write("" + XmlHelper.Read(xml, "/Root/Studio/Site[@Name='丁香鱼工作室']", "Url") + "
");//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", "");

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C#-XML操作类的代码实例详解

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