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C#對XmlHelper幫助類操作Xml文檔的通用方法匯總

 更新時間:2022年03月28日 08:31:48   作者:追逐時光者  
該篇文章主要總結(jié)的是自己平時工作中使用頻率比較高的Xml文檔操作的一些常用方法和收集網(wǎng)上寫的比較好的一些通用Xml文檔操作的方法,對C#?XmlHelper幫助類操作Xml文檔相關知識感興趣的朋友一起看看吧

前言

該篇文章主要總結(jié)的是自己平時工作中使用頻率比較高的Xml文檔操作的一些常用方法和收集網(wǎng)上寫的比較好的一些通用Xml文檔操作的方法(主要包括Xml序列化和反序列化,Xml文件讀取,Xml文檔節(jié)點內(nèi)容增刪改的一些通過方法)。當然可能還有很多方法會漏了,假如各位同學好的方法可以在文末留言,我會統(tǒng)一收集起來。

C#XML基礎入門

http://chabaoo.cn/article/104113.htm

Xml反序列化為對象

#region Xml反序列化為對象

        /// <summary>
        /// Xml反序列化為指定模型對象
        /// </summary>
        /// <typeparam name="T">對象類型</typeparam>
        /// <param name="xmlContent">Xml內(nèi)容</param>
        /// <param name="isThrowException">是否拋出異常</param>
        /// <returns></returns>
        public static T XmlConvertToModel<T>(string xmlContent, bool isThrowException = false) where T : class
        {
            StringReader stringReader = null;
            try
            {
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(T));
                stringReader = new StringReader(xmlContent);
                return (T)xmlSerializer.Deserialize(stringReader);
            }
            catch (Exception ex)
                if (isThrowException)
                {
                    throw ex;
                }
                return null;
            finally
                stringReader?.Dispose();
        }
        /// <summary>     
        /// 讀取Xml文件內(nèi)容反序列化為指定的對象  
        /// </summary>    
        /// <param name="filePath">Xml文件的位置(絕對路徑)</param>  
        /// <returns></returns>    
        public static T DeserializeFromXml<T>(string filePath)
                if (!File.Exists(filePath))
                    throw new ArgumentNullException(filePath + " not Exists");
                using (StreamReader reader = new StreamReader(filePath))
                    XmlSerializer xs = new XmlSerializer(typeof(T));
                    T ret = (T)xs.Deserialize(reader);
                    return ret;
                return default(T);
        #endregion

對象序列化為Xml

#region 對象序列化為Xml

        /// <summary>
        /// 對象序列化為Xml
        /// </summary>
        /// <param name="obj">對象</param>
        /// <param name="isThrowException">是否拋出異常</param>
        /// <returns></returns>
        public static string ObjectSerializerXml<T>(T obj, bool isThrowException = false)
        {
            if (obj == null)
            {
                return string.Empty;
            }
            try
                using (StringWriter sw = new StringWriter())
                {
                    Type t = obj.GetType();
                    //強制指定命名空間,覆蓋默認的命名空間  
                    XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
                    //在Xml序列化時去除默認命名空間xmlns:xsd和xmlns:xsi
                    namespaces.Add(string.Empty, string.Empty);
                    XmlSerializer serializer = new XmlSerializer(obj.GetType());
                    //序列化時增加namespaces
                    serializer.Serialize(sw, obj, namespaces);
                    sw.Close();
                    string replaceStr = sw.ToString().Replace(@"<?xml version=""1.0"" encoding=""utf-16""?>", "");
                    return replaceStr;
                }
            catch (Exception ex)
                if (isThrowException)
                    throw ex;
        }
        #endregion

Xml字符處理

#region Xml字符處理

        /// <summary>
        /// 特殊符號轉(zhuǎn)換為轉(zhuǎn)義字符
        /// </summary>
        /// <param name="xmlStr"></param>
        /// <returns></returns>
        public string XmlSpecialSymbolConvert(string xmlStr)
        {
            return xmlStr.Replace("&", "&").Replace("<", "<").Replace(">", ">").Replace("\'", "&apos;").Replace("\"", """);
        }
        #endregion

創(chuàng)建Xml文檔

#region 創(chuàng)建Xml文檔

        /// <summary>
        /// 創(chuàng)建Xml文檔
        /// </summary>
        /// <param name="saveFilePath">文件保存位置</param>
        public void CreateXmlDocument(string saveFilePath)
        {
            XmlDocument xmlDoc = new XmlDocument();
            //創(chuàng)建類型聲明節(jié)點  
            XmlNode node = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", "");
            xmlDoc.AppendChild(node);
            //創(chuàng)建Xml根節(jié)點
            XmlNode root = xmlDoc.CreateElement("books");
            xmlDoc.AppendChild(root);
            XmlNode root1 = xmlDoc.CreateElement("book");
            root.AppendChild(root1);
            //創(chuàng)建子節(jié)點
            CreateNode(xmlDoc, root1, "author", "追逐時光者");
            CreateNode(xmlDoc, root1, "title", "XML學習教程");
            CreateNode(xmlDoc, root1, "publisher", "時光出版社");
            //將文件保存到指定位置
            xmlDoc.Save(saveFilePath/*"D://xmlSampleCreateFile.xml"*/);
        }
        /// <summary>    
        /// 創(chuàng)建節(jié)點    
        /// </summary>    
        /// <param name="xmlDoc">xml文檔</param>    
        /// <param name="parentNode">Xml父節(jié)點</param>    
        /// <param name="name">節(jié)點名</param>    
        /// <param name="value">節(jié)點值</param>    
        ///   
        public void CreateNode(XmlDocument xmlDoc, XmlNode parentNode, string name, string value)
            //創(chuàng)建對應Xml節(jié)點元素
            XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);
            node.InnerText = value;
            parentNode.AppendChild(node);
        #endregion

Xml數(shù)據(jù)讀取

#region Xml數(shù)據(jù)讀取

        /// <summary>
        /// 讀取Xml指定節(jié)點中的數(shù)據(jù)
        /// </summary>
        /// <param name="filePath">Xml文檔路徑</param>
        /// <param name="node">節(jié)點</param>
        /// <param name="attribute">讀取數(shù)據(jù)的屬性名</param>
        /// <returns>string</returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.XmlReadNodeAttributeValue(path, "/books/book", "author")
         ************************************************/
        public static string XmlReadNodeAttributeValue(string filePath, string node, string attribute)
        {
            string value = "";
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(filePath);
                XmlNode xmlNode = doc.SelectSingleNode(node);
                value = (attribute.Equals("") ? xmlNode.InnerText : xmlNode.Attributes[attribute].Value);
            }
            catch { }
            return value;
        }
        /// 獲得xml文件中指定節(jié)點的節(jié)點數(shù)據(jù)
        /// <param name="nodeName">節(jié)點名</param>
        /// <returns></returns>
        public static string GetNodeInfoByNodeName(string filePath, string nodeName)
            string XmlString = string.Empty;
            XmlDocument xml = new XmlDocument();
            xml.Load(filePath);
            XmlElement root = xml.DocumentElement;
            XmlNode node = root.SelectSingleNode("http://" + nodeName);
            if (node != null)
                XmlString = node.InnerText;
            return XmlString;
        /// 獲取某一節(jié)點的所有孩子節(jié)點的值
        /// <param name="node">要查詢的節(jié)點</param>
        public string[] ReadAllChildallValue(string node, string filePath)
            int i = 0;
            string[] str = { };
            XmlDocument doc = new XmlDocument();
            doc.Load(filePath);
            XmlNode xn = doc.SelectSingleNode(node);
            XmlNodeList nodelist = xn.ChildNodes;  //得到該節(jié)點的子節(jié)點
            if (nodelist.Count > 0)
                str = new string[nodelist.Count];
                foreach (XmlElement el in nodelist)//讀元素值
                {
                    str[i] = el.Value;
                    i++;
                }
            return str;
        public XmlNodeList ReadAllChild(string node, string filePath)
            return nodelist;
        #endregion

Xml插入數(shù)據(jù)

#region Xml插入數(shù)據(jù)

        /// <summary>
        /// Xml指定節(jié)點元素屬性插入數(shù)據(jù)
        /// </summary>
        /// <param name="path">路徑</param>
        /// <param name="node">節(jié)點</param>
        /// <param name="element">元素名</param>
        /// <param name="attribute">屬性名</param>
        /// <param name="value">屬性數(shù)據(jù)</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.XmlInsertValue(path, "/books", "book", "author", "Value")
         ************************************************/
        public static void XmlInsertValue(string path, string node, string element, string attribute, string value)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xmlNode = doc.SelectSingleNode(node);
                if (element.Equals(""))
                {
                    if (!attribute.Equals(""))
                    {
                        XmlElement xe = (XmlElement)xmlNode;
                        xe.SetAttribute(attribute, value);
                    }
                }
                else
                    XmlElement xe = doc.CreateElement(element);
                    if (attribute.Equals(""))
                        xe.InnerText = value;
                    else
                    //添加新增的節(jié)點
                    xmlNode.AppendChild(xe);
                //保存Xml文檔
                doc.Save(path);
            }
            catch { }
        }
        #endregion

Xml修改數(shù)據(jù)

#region Xml修改數(shù)據(jù)

        /// <summary>
        /// Xml指定節(jié)點元素屬性修改數(shù)據(jù)
        /// </summary>
        /// <param name="path">路徑</param>
        /// <param name="node">節(jié)點</param>
        /// <param name="attribute">屬性名</param>
        /// <param name="value">屬性數(shù)據(jù)</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.XmlUpdateValue(path, "/books", "book","author","Value")
         ************************************************/
        public static void XmlUpdateValue(string path, string node, string attribute, string value)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xmlNode = doc.SelectSingleNode(node);
                XmlElement xmlElement = (XmlElement)xmlNode;
                if (attribute.Equals(""))
                    xmlElement.InnerText = value;
                else
                    xmlElement.SetAttribute(attribute, value);
                //保存Xml文檔
                doc.Save(path);
            }
            catch { }
        }
        #endregion

Xml刪除數(shù)據(jù)

#region Xml刪除數(shù)據(jù)

        /// <summary>
        /// 刪除數(shù)據(jù)
        /// </summary>
        /// <param name="path">路徑</param>
        /// <param name="node">節(jié)點</param>
        /// <param name="attribute">屬性名</param>
        /// <returns></returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.XmlDelete(path, "/books", "book")
         ************************************************/
        public static void XmlDelete(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 { }
        }
        #endregion

完整的XmlHelper幫助類

注意:有些方法不能保證百分之百沒有問題的,假如有問題可以留言給我,我會驗證并立即修改。

/// <summary>
    /// Xml幫助類
    /// </summary>
    public class XMLHelper
    {
        #region Xml反序列化為對象

        /// <summary>
        /// Xml反序列化為指定模型對象
        /// </summary>
        /// <typeparam name="T">對象類型</typeparam>
        /// <param name="xmlContent">Xml內(nèi)容</param>
        /// <param name="isThrowException">是否拋出異常</param>
        /// <returns></returns>
        public static T XmlConvertToModel<T>(string xmlContent, bool isThrowException = false) where T : class
        {
            StringReader stringReader = null;
            try
            {
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(T));
                stringReader = new StringReader(xmlContent);
                return (T)xmlSerializer.Deserialize(stringReader);
            }
            catch (Exception ex)
                if (isThrowException)
                {
                    throw ex;
                }
                return null;
            finally
                stringReader?.Dispose();
        }
        /// <summary>     
        /// 讀取Xml文件內(nèi)容反序列化為指定的對象  
        /// </summary>    
        /// <param name="filePath">Xml文件的位置(絕對路徑)</param>  
        /// <returns></returns>    
        public static T DeserializeFromXml<T>(string filePath)
                if (!File.Exists(filePath))
                    throw new ArgumentNullException(filePath + " not Exists");
                using (StreamReader reader = new StreamReader(filePath))
                    XmlSerializer xs = new XmlSerializer(typeof(T));
                    T ret = (T)xs.Deserialize(reader);
                    return ret;
                return default(T);
        #endregion
        #region 對象序列化為Xml
        /// 對象序列化為Xml
        /// <param name="obj">對象</param>
        public static string ObjectSerializerXml<T>(T obj, bool isThrowException = false)
            if (obj == null)
                return string.Empty;
                using (StringWriter sw = new StringWriter())
                    Type t = obj.GetType();
                    //強制指定命名空間,覆蓋默認的命名空間  
                    XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
                    //在Xml序列化時去除默認命名空間xmlns:xsd和xmlns:xsi
                    namespaces.Add(string.Empty, string.Empty);
                    XmlSerializer serializer = new XmlSerializer(obj.GetType());
                    //序列化時增加namespaces
                    serializer.Serialize(sw, obj, namespaces);
                    sw.Close();
                    string replaceStr = sw.ToString().Replace(@"<?xml version=""1.0"" encoding=""utf-16""?>", "");
                    return replaceStr;
        #region Xml字符處理
        /// 特殊符號轉(zhuǎn)換為轉(zhuǎn)義字符
        /// <param name="xmlStr"></param>
        public string XmlSpecialSymbolConvert(string xmlStr)
            return xmlStr.Replace("&", "&").Replace("<", "<").Replace(">", ">").Replace("\'", "&apos;").Replace("\"", """);
        #region 創(chuàng)建Xml文檔
        /// 創(chuàng)建Xml文檔
        /// <param name="saveFilePath">文件保存位置</param>
        public void CreateXmlDocument(string saveFilePath)
            XmlDocument xmlDoc = new XmlDocument();
            //創(chuàng)建類型聲明節(jié)點  
            XmlNode node = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", "");
            xmlDoc.AppendChild(node);
            //創(chuàng)建Xml根節(jié)點
            XmlNode root = xmlDoc.CreateElement("books");
            xmlDoc.AppendChild(root);
            XmlNode root1 = xmlDoc.CreateElement("book");
            root.AppendChild(root1);
            //創(chuàng)建子節(jié)點
            CreateNode(xmlDoc, root1, "author", "追逐時光者");
            CreateNode(xmlDoc, root1, "title", "XML學習教程");
            CreateNode(xmlDoc, root1, "publisher", "時光出版社");
            //將文件保存到指定位置
            xmlDoc.Save(saveFilePath/*"D://xmlSampleCreateFile.xml"*/);
        /// <summary>    
        /// 創(chuàng)建節(jié)點    
        /// <param name="xmlDoc">xml文檔</param>    
        /// <param name="parentNode">Xml父節(jié)點</param>    
        /// <param name="name">節(jié)點名</param>    
        /// <param name="value">節(jié)點值</param>    
        ///   
        public void CreateNode(XmlDocument xmlDoc, XmlNode parentNode, string name, string value)
            //創(chuàng)建對應Xml節(jié)點元素
            XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);
            node.InnerText = value;
            parentNode.AppendChild(node);
        #region Xml數(shù)據(jù)讀取
        /// 讀取Xml指定節(jié)點中的數(shù)據(jù)
        /// <param name="filePath">Xml文檔路徑</param>
        /// <param name="node">節(jié)點</param>
        /// <param name="attribute">讀取數(shù)據(jù)的屬性名</param>
        /// <returns>string</returns>
        /**************************************************
         * 使用示列:
         * XmlHelper.XmlReadNodeAttributeValue(path, "/books/book", "author")
         ************************************************/
        public static string XmlReadNodeAttributeValue(string filePath, string node, string attribute)
            string value = "";
                XmlDocument doc = new XmlDocument();
                doc.Load(filePath);
                XmlNode xmlNode = doc.SelectSingleNode(node);
                value = (attribute.Equals("") ? xmlNode.InnerText : xmlNode.Attributes[attribute].Value);
            catch { }
            return value;
        /// 獲得xml文件中指定節(jié)點的節(jié)點數(shù)據(jù)
        /// <param name="nodeName">節(jié)點名</param>
        public static string GetNodeInfoByNodeName(string filePath, string nodeName)
            string XmlString = string.Empty;
            XmlDocument xml = new XmlDocument();
            xml.Load(filePath);
            XmlElement root = xml.DocumentElement;
            XmlNode node = root.SelectSingleNode("http://" + nodeName);
            if (node != null)
                XmlString = node.InnerText;
            return XmlString;
        /// 獲取某一節(jié)點的所有孩子節(jié)點的值
        /// <param name="node">要查詢的節(jié)點</param>
        public string[] ReadAllChildallValue(string node, string filePath)
            int i = 0;
            string[] str = { };
            XmlDocument doc = new XmlDocument();
            doc.Load(filePath);
            XmlNode xn = doc.SelectSingleNode(node);
            XmlNodeList nodelist = xn.ChildNodes;  //得到該節(jié)點的子節(jié)點
            if (nodelist.Count > 0)
                str = new string[nodelist.Count];
                foreach (XmlElement el in nodelist)//讀元素值
                    str[i] = el.Value;
                    i++;
            return str;
        public XmlNodeList ReadAllChild(string node, string filePath)
            return nodelist;
        #region Xml插入數(shù)據(jù)
        /// Xml指定節(jié)點元素屬性插入數(shù)據(jù)
        /// <param name="path">路徑</param>
        /// <param name="element">元素名</param>
        /// <param name="attribute">屬性名</param>
        /// <param name="value">屬性數(shù)據(jù)</param>
         * XmlHelper.XmlInsertValue(path, "/books", "book", "author", "Value")
        public static void XmlInsertValue(string path, string node, string element, string attribute, string value)
                doc.Load(path);
                if (element.Equals(""))
                    if (!attribute.Equals(""))
                    {
                        XmlElement xe = (XmlElement)xmlNode;
                        xe.SetAttribute(attribute, value);
                    }
                else
                    XmlElement xe = doc.CreateElement(element);
                    if (attribute.Equals(""))
                        xe.InnerText = value;
                    else
                    //添加新增的節(jié)點
                    xmlNode.AppendChild(xe);
                //保存Xml文檔
                doc.Save(path);
        #region Xml修改數(shù)據(jù)
        /// Xml指定節(jié)點元素屬性修改數(shù)據(jù)
         * XmlHelper.XmlUpdateValue(path, "/books", "book","author","Value")
        public static void XmlUpdateValue(string path, string node, string attribute, string value)
                XmlElement xmlElement = (XmlElement)xmlNode;
                if (attribute.Equals(""))
                    xmlElement.InnerText = value;
                    xmlElement.SetAttribute(attribute, value);
        #region Xml刪除數(shù)據(jù)
        /// 刪除數(shù)據(jù)
         * XmlHelper.XmlDelete(path, "/books", "book")
        public static void XmlDelete(string path, string node, string attribute)
                XmlNode xn = doc.SelectSingleNode(node);
                XmlElement xe = (XmlElement)xn;
                    xn.ParentNode.RemoveChild(xn);
                    xe.RemoveAttribute(attribute);
    }

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