XML和对应实体字段替换用到（XMLHelper和FileHelper）

1.使用方式

 //读取XML
                string hxml = FileHelper.ReadFileToStr(AppDomain.CurrentDomain.BaseDirectory + "Helper\手术状态Header.xml");
                string bxml = FileHelper.ReadFileToStr(AppDomain.CurrentDomain.BaseDirectory + "Helper\手术状态body.xml");
                string hader = XmlHelper.ParseXML(hxml, m, typeof(DataModel));
                //参数1:读取的string类型XML;赋值实体实例；实体类型
                string bobyXml = XmlHelper.ParseXML(XmlHelper.Format(bxml), data, typeof(ScheduleInfo));
                string boby = XmlHelper.ParseXML(XmlHelper.Format(bobyXml), m, typeof(DataModel));

2. XMLHelper

/// <summary>
    /// xml工具类
    /// </summary>
    public class XmlHelper
    {
        /// <summary>
        /// 序列化xml
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static string XmlSerialize<T>(T obj)
        {
            try
            {
                using (StringWriter sw = new StringWriter())
                {
                    Type t = obj.GetType();
                    XmlSerializer serializer = new XmlSerializer(obj.GetType());
                    serializer.Serialize(sw, obj);
                    sw.Close();
                    return sw.ToString();
                }
            }
            catch (Exception ex)
            {
                WriteTxt("实体序列化xml失败:" + ex);
                return string.Empty;
            }

        }

        /// <summary>
        /// 序列化xml到文件
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static void XmlSerialize<T>(T obj, string path)
        {
            try
            {
                string xml = string.Empty;
                using (StringWriter sw = new StringWriter())
                {
                    Type t = obj.GetType();
                    XmlSerializer serializer = new XmlSerializer(obj.GetType());
                    serializer.Serialize(sw, obj);
                    sw.Close();
                    xml = sw.ToString();
                }
                if (string.IsNullOrWhiteSpace(xml))
                {
                    WriteTxt("实体序列化xml为空");
                    return;
                }
                FileHelper.WriteFile(FileHelper.CreateFileAbsolutePath(path, true), xml);
            }
            catch (Exception ex)
            {
                WriteTxt("实体序列化xml文件失败:" + ex);
            }
        }

        /// <summary>
        /// 反序列化xml
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="strXML"></param>
        /// <returns></returns>
        public static T DESerializer<T>(string strXML) where T : class
        {
            try
            {
                using (StringReader sr = new StringReader(strXML))
                {
                    XmlSerializer serializer = new XmlSerializer(typeof(T));
                    return serializer.Deserialize(sr) as T;
                }
            }
            catch (Exception ex)
            {
                WriteTxt("xml反序列化实体失败[" + ex);
                return null;
            }
        }

        /// <summary>
        /// 读取xml文件，反序列化实体
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="path"></param>
        /// <returns></returns>
        public static T DESerializerByFile<T>(string path) where T : class
        {
            try
            {
                if (!FileHelper.FileExistByPath(path))
                {
                    WriteTxt(
                        string.Format("文件{0}不存在", path));
                    return null;
                }
                string strXML = FileHelper.ReadFileToStr(path);
                using (StringReader sr = new StringReader(strXML))
                {
                    XmlSerializer serializer = new XmlSerializer(typeof(T));
                    return serializer.Deserialize(sr) as T;
                }
            }
            catch (Exception ex)
            {
                WriteTxt("xml反序列化实体失败:" + ex);
                return null;
            }
        }

        /// <summary>
        /// 清除xml中指定内容
        /// </summary>
        /// <param name="xml"></param>
        /// <param name="cleraStr"></param>
        /// <returns></returns>
        public static string Clear(string xml, string cleraStr)
        {
            try
            {
                string xml_clear = xml.Replace(cleraStr, string.Empty);
                return xml_clear;
            }
            catch (Exception ex)
            {
                WriteTxt("清除xml中指定内容失败:" + ex);
                return xml;
            }
        }

        /// <summary>
        /// 清除xml中指定内容
        /// </summary>
        /// <param name="xml"></param>
        /// <returns></returns>
        public static string Clear(string xml, List<string> clearList)
        {
            string xml_result = xml;
            try
            {
                if (clearList != null)
                {
                    foreach (string clearItem in clearList)
                    {
                        xml_result = xml.Replace(clearItem.Trim(), string.Empty);
                        xml = xml_result;
                    }
                }
            }
            catch (Exception ex)
            {

            }
            return xml_result;
        }

        /// <summary>
        /// 格式化xml
        /// </summary>
        /// <param name="xml"></param>
        /// <returns></returns>
        public static string Format(string xml)
        {
            string resultXml = xml;
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.LoadXml(xml);

                System.IO.StringWriter sw = new System.IO.StringWriter();
                using (System.Xml.XmlTextWriter writer = new System.Xml.XmlTextWriter(sw))
                {
                    writer.Indentation = 2;  // the Indentation
                    writer.Formatting = System.Xml.Formatting.Indented;
                    doc.WriteContentTo(writer);
                    writer.Close();
                }
                resultXml = sw.ToString();
            }
            catch (Exception ex)
            {
                WriteTxt("格式化xmlm出错:" + ex);
            }
            return resultXml;
        }

        /// <summary>
        /// 解析XML,匹配替换模板中的内容
        /// </summary>
        /// <param name="content">模板内容</param>
        /// <param name="obj">模板对应的对象</param>
        /// <param name="GetType">模板对应的对象的类的类型</param>
        /// <returns></returns>
        public static string ParseXML(string content, object obj, Type GetType)
        {
            //结束贪婪模式
            Regex r = new Regex(@"{(w+?)}");
            MatchCollection matches = r.Matches(content);
            foreach (Match matche in matches)
            {
                #region 匹配替换
                //提取组
                Group g = matche.Groups[1];
                //属性名
                string key = g.Value;
                //属性
                var property = GetType.GetProperty(key);
                //属性里面的值
                string value = "";
                if (property != null)
                {
                    object proobj = property.GetValue(obj, null);
                    if (proobj != null)
                    {
                        value = proobj.ToString();
                    }
                }
                else
                {
                    string nullstr = "";
                }
                Regex r1 = new Regex(@"{" + key + @"}");
                content = r1.Replace(content, value);
                #endregion
            }
            return content;
        }


        /// <summary>
        /// 写日志（日志文件位置与主程序exe位置相同）
        /// </summary>
        /// <param name="strText">日志内容</param>
        /// <param name="strFileName">日志文件名称</param>
        private static void WriteTxt(string strText, string strFileName = null)
        {
            try
            {
                if (strFileName == null || strFileName.Trim() == string.Empty)
                {
                    strFileName = "Log.txt";
                }
                string strFilePath = AppDomain.CurrentDomain.BaseDirectory + strFileName;
                System.IO.StreamWriter sw = new System.IO.StreamWriter(strFilePath, true, System.Text.Encoding.Default);
                sw.WriteLine(strText);
                sw.Close();
            }
            catch (Exception)
            { }
        }
    }

3. FileHelper

 public class FileHelper
    {
        [DllImport("kernel32.dll")]
        public static extern IntPtr _lopen(string lpPathName, int iReadWrite);

        [DllImport("kernel32.dll")]
        public static extern bool CloseHandle(IntPtr hObject);

        public const int OF_READWRITE = 2;
        public const int OF_SHARE_DENY_NONE = 0x40;
        public static readonly IntPtr HFILE_ERROR = new IntPtr(-1);

        /// <summary>
        /// 根据路径判断文件是否存在
        /// </summary>
        /// <param name="path"></param>
        /// <returns>true表示存在,false不存在</returns>
        public static bool FileExistByPath(string path)
        {
            bool result = false;
            try
            {
                if (path.Contains(":"))
                {
                    if (File.Exists(path))
                        result = true;
                }
                else
                {
                    string absolutePath = string.Format("{0}{1}", AppDomain.CurrentDomain.BaseDirectory, path);
                    if (File.Exists(absolutePath))
                        result = true;
                }
            }
            catch (Exception ex)
            {
                if (path.Contains(":"))
                    WriteTxt(string.Format("绝对路径判断文件是否存在出错,绝对路径{0}", path)+ ex);
                else
                    WriteTxt(string.Format("相对路径判断文件是否存在出错,根路径{0}，相对路径{1}", AppDomain.CurrentDomain.BaseDirectory, path)+ ex.Message);
            }
            return result;
        }

        /// <summary>
        /// 创建文件绝对路径
        /// </summary>
        /// <param name="path"></param>
        /// <param name="isRelativePath"></param>
        /// <returns></returns>
        public static string CreateFileAbsolutePath(string path, bool isRelativePath)
        {
            string absolutePath = path;
            try
            {
                if (isRelativePath && !path.Contains(":"))
                    absolutePath = string.Format("{0}{1}", AppDomain.CurrentDomain.BaseDirectory, path);
            }
            catch (Exception ex)
            {
                WriteTxt(ex.Message);
            }
            return absolutePath;
        }

        /// <summary>
        /// 根据文件路径判断文件是否被占用
        /// </summary>
        /// <param name="path"></param>
        /// <returns>true表示正在使用,false没有使用</returns>
        public static bool FileOccupy(string path)
        {
            bool inUse = true;
            try
            {
                if (!FileExistByPath(path))
                {
                    WriteTxt("文件都不存在!");
                    inUse = false;
                    return inUse;
                }
                IntPtr vHandle = _lopen(path, OF_READWRITE | OF_SHARE_DENY_NONE);
                if (vHandle == HFILE_ERROR)
                {
                    
                    WriteTxt("文件被占用！");
                    return inUse;
                }
                CloseHandle(vHandle);
                inUse = false;
            }
            catch (Exception ex)
            {
                WriteTxt("判断文件是否被占用失败"+ex.Message);
            }
            return inUse;
        }

        /// <summary>
        /// 根据文件路径判断文件是否被占用
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns>true表示正在使用,false没有使用</returns>
        public static bool IsFileInUse(string path)
        {
            bool inUse = true;
            FileStream fs = null;
            try
            {
                if (!FileExistByPath(path))
                {
                    WriteTxt("文件都不存在!");
                    inUse = false;
                    return inUse;
                }
                fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.None);
                inUse = false;
            }
            catch (Exception ex)
            {
                WriteTxt("判断文件是否被占用失败"+ ex.Message);
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
            return inUse;
        }

        /// <summary>
        /// 根据文件路径读取string
        /// </summary>
        /// <param name="path"></param>
        /// <returns>true表示正在使用,false没有使用</returns>
        public static string ReadFileToStr(string path)
        {
            string resultStr = string.Empty;
            try
            {
                //打开文件时总写日志，先注释掉
                //int i = 0;
                //int waitTime = 3000;
                //int interval = 100;
                //while (i <= waitTime)
                //{
                //    if (!IsFileInUse(path))
                //        break;
                //    Thread.Sleep(interval);
                //    i += interval;
                //}
                resultStr = File.ReadAllText(path);
            }
            catch (Exception ex)
            {
                WriteTxt("读取文件失败"+ ex);
            }
            return resultStr;
        }

        /// <summary>
        /// 保存字符串到文件
        /// </summary>
        /// <param name="absolutePath"></param>
        /// <param name="contents"></param>
        public static void WriteFile(string absolutePath, string contents)
        {
            try
            {
                string rootPath = Path.GetDirectoryName(absolutePath);
                if (!Directory.Exists(rootPath))
                {
                    DirectoryInfo dirc = Directory.CreateDirectory(rootPath);
                }
                File.WriteAllText(absolutePath, contents);
            }
            catch (Exception ex)
            {
                WriteTxt("写文件失败"+ex);
            }
        }

        /// <summary>
        /// 保存xml
        /// </summary>
        /// <param name="xml"></param>
        /// <param name="path"></param>
        public static void SaveXml(string xml, string path)
        {
            try
            {
                DateTime dt = DateTime.Now;
                //保存xml
                FileHelper.WriteFile(FileHelper.CreateFileAbsolutePath(string.Format("{0}\{1}\{2}\{3}.txt", path, dt.ToString("yyyyMMdd"), dt.ToString("HH"), dt.ToString("yyyyMMddHHmmss")), true), xml);
            }
            catch (Exception ex)
            {
                WriteTxt("保存xml失败"+ex.Message);
            }
        }


        /// <summary>
        /// 写日志（日志文件位置与主程序exe位置相同）
        /// </summary>
        /// <param name="strText">日志内容</param>
        /// <param name="strFileName">日志文件名称</param>
        private static void WriteTxt(string strText, string strFileName = null)
        {
            try
            {
                if (strFileName == null || strFileName.Trim() == string.Empty)
                {
                    strFileName = "Log.txt";
                }
                string strFilePath = AppDomain.CurrentDomain.BaseDirectory + strFileName;
                System.IO.StreamWriter sw = new System.IO.StreamWriter(strFilePath, true, System.Text.Encoding.Default);
                sw.WriteLine(strText);
                sw.Close();
            }
            catch (Exception)
            { }
        }
    }