C#对文件、文件夹、Xml等操作
/// <summary> /// 对文件操作类 /// </summary> public class FileOperat { /// <summary> /// 删除指定文件 /// </summary> /// <param name="fileFullPath">要删除的文件路径</param> /// <returns>true/false</returns> public bool DeleteFile(string fileFullPath) { if (File.Exists(fileFullPath)) { if (File.GetAttributes(fileFullPath) == FileAttributes.Normal)//判断文件的属性，属于正常状态 { File.Delete(fileFullPath); } else { File.SetAttributes(fileFullPath, FileAttributes.Normal); File.Delete(fileFullPath); } return true; } else { return false; } } /// <summary> /// 获取文件名 /// </summary> /// <param name="fileFullPath">文件全路径</param> /// <returns>文件名</returns> public string GetFileName(string fileFullPath) { if (File.Exists(fileFullPath)) { FileInfo file = new FileInfo(fileFullPath); return file.Name; } else { return null; } } /// <summary> /// 获取文件名 /// </summary> /// <param name="fileFullPath">文件全路径</param> /// <param name="includingFileExtension">是否包含扩展名</param> /// <returns>string</returns> public string GetFileName(string fileFullPath, bool includingFileExtension) { if (File.Exists(fileFullPath)) { FileInfo fileInfo = new FileInfo(fileFullPath); if (includingFileExtension == true) { return fileInfo.Name; } else { return fileInfo.Name.Replace(fileInfo.Extension, ""); } } else { return null; } } /// <summary> /// 获取文件扩展名 /// </summary> /// <param name="fileFullPath">文件全路径</param> /// <returns>string</returns> public string GetFileExtension(string fileFullPath) { if (File.Exists(fileFullPath)) { FileInfo fileInfo = new FileInfo(fileFullPath); return fileInfo.Extension; } else { return null; } } /// <summary> /// 根据传来的文件全路径,获取新的文件名称全路径(不存在),一般用如临时文件 /// </summary> /// <param name="fileFullPath">文件名称全路径</param> /// <returns>新的文件名称全路径</returns> public string GetNewFileFullName(string fileFullPath) { if (File.Exists(fileFullPath)) { string TempFile = ""; FileInfo fileInfo=new FileInfo(fileFullPath); for (int i = 0; i < 1000; i++) { TempFile = fileInfo.Name.Replace(fileInfo.Extension, ""); fileFullPath = TempFile + i.ToString() + fileInfo.Extension; if (File.Exists(fileFullPath)) { break; //如果文件存在，中断循环 } } } return fileFullPath; } /// <summary> /// 打开文件 /// </summary> /// <param name="fileFullPath"></param> /// <returns></returns> public bool OpenFile(string fileFullPath) { if (File.Exists(fileFullPath)) { System.Diagnostics.Process.Start(fileFullPath); return true; } else { return false; } } /// <summary> /// 得到文件的大小 /// </summary> /// <param name="fileFullPath">文件全路径</param> /// <returns>string</returns> public string GetFileLength(string fileFullPath) { if (File.Exists(fileFullPath)) { FileInfo fileInfo = new FileInfo(fileFullPath); long f = fileInfo.Length; //KB MB GB TB if (f > 1024 * 1024 * 1024)//GB { return Convert.ToString(Math.Round((f + 0.00) / (1024 * 1024 * 1024), 2)) + "GB"; } if (f > 1024 * 1024) //MB { return Convert.ToString(Math.Round((f + 0.00) / (1024 * 1024), 2)) + "MB"; } else { return Convert.ToString(Math.Round((f + 0.00) / 1024,2)) + "KB"; } } else { return null; } } /// <summary> /// 文件转换成二进制流 /// </summary> /// <param name="fileFullPath">要转换的文件全路径</param> /// <returns> Byte[] </returns> /// <remarks></remarks> public Byte[] FileToStreamByte(string fileFullPath) { Byte[] fileData = null; if (File.Exists(fileFullPath)) { FileStream fs = new FileStream(fileFullPath, System.IO.FileMode.Open); fileData = new Byte[fs.Length]; fs.Read(fileData, 0, fileData.Length); fs.Close(); return fileData; } else { return null; } } /// <summary> /// 从二进制转换成文件 /// </summary> /// <param name="createFileFullPath">要转换的文件全路径</param> /// <param name="streamByte">二进制流</param> /// <returns>True/False</returns> /// <remarks>True/False</remarks> public bool ByteSteramToFile(string createFileFullPath, Byte[] streamByte) { try { FileStream fs = null; if (File.Exists(createFileFullPath)) //如果文件存在，先删除 { DeleteFile(createFileFullPath); } fs = File.Create(createFileFullPath); fs.Write(streamByte,0, streamByte.Length); fs.Close(); return true; } catch { return false; } } /// <summary> /// 序列化Xml文件 /// </summary> /// <param name="fileFullPath">要序列化的xml文件路径</param> /// <returns>True/False</returns> public bool SerializeXmlFile(string fileFullPath) { System.Data.DataSet ds = new System.Data.DataSet(); if (File.Exists(fileFullPath)) { try { ds.ReadXml(fileFullPath); FileStream fs = new FileStream(fileFullPath + ".tmp", FileMode.OpenOrCreate); System.Runtime.Serialization.Formatters.Binary.BinaryFormatter BF = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); BF.Serialize(fs, ds);//序例化ds,并将结果赋给fs fs.Close(); DeleteFile(fileFullPath);//删除传入的xml文件 File.Move(fileFullPath + ".tmp", fileFullPath);//将序列化后的文件改为原来的Xml文件 return true; } catch { return false; } } else { return false; } } /// <summary> /// 反序列化Xml /// </summary> /// <param name="fileFullPath">反序列化的Xml文件路径</param> /// <returns>True/False</returns> /// <remarks></remarks> public bool DescSerializeXmlFile(string fileFullPath) { if (File.Exists(fileFullPath)) { try { System.Data.DataSet ds = new System.Data.DataSet(); FileStream fs = new FileStream(fileFullPath, FileMode.Open);//打开xml文件,将内容读入到流中 System.Runtime.Serialization.Formatters.Binary.BinaryFormatter BF = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); object descSeriResult = BF.Deserialize(fs);//反序列化 ((System.Data.DataSet)descSeriResult).WriteXml(fs + ".tmp"); fs.Close();//关闭流 DeleteFile(fileFullPath);//删除传入的xml文件 File.Move(fileFullPath + ".tmp", fileFullPath);//将反序列化后的文件改名传入的xml文件 return true; } catch { return false; } } else { return false; } } } /// <summary> /// 对文件目录操作的公共组件 /// </summary> public class DirOperate { public enum OperateOption { /// <summary> /// 文件夹存在时删除 /// </summary> ExistDelete, /// <summary> /// 文件夹存在时返回 /// </summary> ExistReturn } /// <summary> /// 创建文件夹 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <param name="dirOperateOption">文件夹操作选项</param> /// <returns>True/False</returns> public bool CreateDirOperate(string dirFullPath, OperateOption dirOperateOption) { try { if (!Directory.Exists(dirFullPath)) { Directory.CreateDirectory(dirFullPath); } else if (dirOperateOption == OperateOption.ExistDelete) { Directory.Delete(dirFullPath,true); Directory.CreateDirectory(dirFullPath); } return true; } catch { return false; } } /// <summary> /// 删除文件夹操作 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <returns>True/False</returns> public bool DeleteDirOperate(string dirFullPath) { if (Directory.Exists(dirFullPath)) { Directory.Delete(dirFullPath, true); return true; } else { return false; } } /// <summary> /// 得到文件夹下的所有文件，不包含子文件夹 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <returns>string[]</returns> /// <remarks></remarks> public string[] GetDirFiles(string dirFullPath) { string[] fileList = null; if (Directory.Exists(dirFullPath)) { return fileList = Directory.GetFiles(dirFullPath, "*.*", SearchOption.TopDirectoryOnly); } else { return null; } } /// <summary> /// 得到文件夹下的所有文件，按指定的搜索模式 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <param name="so">搜索类型</param> /// <returns>string[]</returns> /// <remarks></remarks> public string[] GetDirFiles(string dirFullPath,SearchOption so) { string[] fileList = null; if (Directory.Exists(dirFullPath)) { return fileList = Directory.GetFiles(dirFullPath, "*.*",so); } else { return null; } } /// <summary> /// 得到文件夹下所有与文件类型匹配的文件 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <param name="SearchPattern">文件类型</param> /// <returns></returns> public string[] GetDirFiles(string dirFullPath,string SearchPattern) { string[] fileList = null; if (Directory.Exists(dirFullPath)) { return fileList = Directory.GetFiles(dirFullPath, SearchPattern); } else { return null; } } /// <summary> /// 得到文件夹下所有文件 /// </summary> /// <param name="dirFullPath">文件夹路径</param> /// <param name="SearchPattern">文件类型</param> /// <param name="so">搜索类型</param> /// <returns>string[]</returns> /// <remarks></remarks> public string[] GetDirFiles(string dirFullPath, string SearchPattern,SearchOption so) { string[] fileList = null; if (Directory.Exists(dirFullPath)) { return fileList = Directory.GetFiles(dirFullPath, SearchPattern,so); } else { return null; } } }