ASP.NET 系統檔案操作和XML配置讀寫
阿新 • • 發佈：2018-11-09
這裡將工作中用到的兩個工具分享一下：（1）、系統檔案操作工具（2）、XML讀寫配置檔案工具。
目錄
檔案操作工具
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; namespace Base { public class FileHelp { public enum GetDirectoryType { ByAppDomain, ByAssembly } public static string GetCurrentDirectory(GetDirectoryType type = GetDirectoryType.ByAppDomain) { switch (type) { case GetDirectoryType.ByAppDomain: return AppDomain.CurrentDomain.BaseDirectory; case GetDirectoryType.ByAssembly: return Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location); default: return AppDomain.CurrentDomain.BaseDirectory; } } public static string GetCurrentDirectoryByAssembly() { return GetCurrentDirectory(GetDirectoryType.ByAssembly); } /// <summary> /// 獲取配置檔案路徑 優先取環境變數中MyDataPath值 如果找不到則取當前路徑 /// </summary> /// <returns></returns> public static string GetMyConfPath() { var path = Environment.GetEnvironmentVariable("MyDataPath"); if (string.IsNullOrWhiteSpace(path)) { path = GetCurrentDirectory(); } if (!path.EndsWith("/") && !path.EndsWith("\\")) { path += "/"; } return path; } /// <summary> ///程式資料路徑- C:\ProgramData /// </summary> /// <returns></returns> public static string GetCommonApplicationData() { return Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData); } /// <summary> /// 使用者資料路徑 /// </summary> /// <returns></returns> public static string GetApplicationData() { return Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); } /// <summary> /// 使用者資料本地路徑 /// </summary> /// <returns></returns> public static string GetLocalApplicationData() { return Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); } /// <summary> /// 使用者路徑 /// </summary> /// <returns></returns> public static string GetUserProfile() { return Environment.GetFolderPath(Environment.SpecialFolder.UserProfile); } /// <summary> /// 使用者的圖片路徑 /// </summary> /// <returns></returns> public static string GetMyPictures() { return Environment.GetFolderPath(Environment.SpecialFolder.MyPictures); } /// <summary> /// 使用者的視訊路徑 /// </summary> /// <returns></returns> public static string GetMyVideos() { return Environment.GetFolderPath(Environment.SpecialFolder.MyVideos); } /// <summary> /// 使用者的文件路徑 /// </summary> /// <returns></returns> public static string GetMyDocuments() { return Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments); } /// <summary> /// IE保護模式下的低許可權操作路徑(Temporary Internet Files/Low) /// 參考：https://blog.csdn.net/xt_xiaotian/article/details/5336809 /// </summary> /// <returns></returns> public static string GetTemporaryInternetFiles() { return GetLocalApplicationData() + "\\Microsoft\\Windows\\Temporary Internet Files\\Low"; } /// <summary> /// IE保護模式下的低許可權操作路徑(%userprofile%/AppData/LocalLow) /// 參考：https://blog.csdn.net/xt_xiaotian/article/details/5336809 /// </summary> /// <returns></returns> public static string GetAppDataLocalLow() { return GetUserProfile() + "\\AppData\\LocalLow"; } /// <summary> /// 獲取系統字型檔案路徑 /// </summary> /// <returns></returns> public static string GetFonts() { return Environment.GetFolderPath(Environment.SpecialFolder.Fonts); } /// <summary> /// 二進位制檔案讀取 /// </summary> /// <param name="FileUrl">檔案路徑</param> /// <returns></returns> public static byte[] BinaryRead(string FileUrl) { List<byte> lst = new List<byte>(); try { //檔案路徑 String filename = FileUrl; //開啟檔案 FileStream FStream; if (File.Exists(filename)) { FStream = new FileStream(filename, FileMode.Open); } else { return null; } int BufferSize = 1048576; //每次讀取的位元組數 每次讀取1MB byte[] Buffer = new byte[BufferSize]; long FileLength = FStream.Length;//檔案流的長度 int ReadCount = (int)(FileLength / BufferSize) + 1; //需要對檔案讀取的次數 //資料讀取 BinaryReader BWrite = new BinaryReader(FStream); //br.BaseStream.Seek(0, SeekOrigin.Begin); //while (br.BaseStream.Position < br.BaseStream.Length){} for (int a = 0; a < ReadCount; a++) { Buffer = BWrite.ReadBytes(BufferSize); lst.AddRange(Buffer); } BWrite.Close(); BWrite.Close(); return lst.ToArray(); } catch (System.Exception ex) { Log.WriteLog4Ex("FileHelp.BinaryRead", ex); return null; } } /// <summary> /// 二進位制檔案寫入 /// </summary> /// <param name="Bts"></param> /// <param name="DirectoryUrl">檔案目錄路徑</param> /// <param name="FileName">檔名稱</param> /// <returns></returns> public static bool BinaryWrite(byte[] Bts, string DirectoryUrl, string FileName) { try { //檔案路徑 string Filepath = DirectoryUrl + "\\" + FileName; //目錄建立 if (!Directory.Exists(DirectoryUrl)) Directory.CreateDirectory(DirectoryUrl); //檔案建立 FileStream FStream; if (File.Exists(Filepath)) { FStream = new FileStream(Filepath, FileMode.Append); } else { FStream = new FileStream(Filepath, FileMode.Create); } //資料寫入 BinaryWriter BWrite = new BinaryWriter(FStream); BWrite.Write(Bts); BWrite.Close(); FStream.Close(); return true; } catch (System.Exception ex) { Log.WriteLog4Ex("FileHelp.BinaryWrite", ex); return false; } } /// <summary> /// 二進位制檔案刪除 /// </summary> /// <param name="FileUrl">檔案路徑</param> public static void FileDelete(string FileUrl) { try { //檔案路徑 String filename = FileUrl; //刪除檔案 if (File.Exists(filename)) { File.Delete(filename); } } catch (System.Exception ex) { Log.WriteLog4Ex("FileHelp.FileDelete", ex); } } } }
XML配置檔案讀寫
泛型是具體的配置檔案屬性
using RTVSWeb.Models; using Base; using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; namespace RTVSWeb.Utils { /// <summary> /// 配置檔案讀取工具類 /// </summary> public class ConfigReader<T> { private string XMLmlFile; public T Config; /// <summary> /// 建構函式 /// </summary> /// <param name="XMLmlFile">如：VersionConfig.xml</param> public ConfigReader(string XMLmlFile) { this.XMLmlFile= XMLmlFile; } /// <summary> /// 讀取配置資訊 /// </summary> /// <returns></returns> public bool ReadConfig() { try { Config = SerializableHelper.DeserializeSetting<T>(FileHelp.GetMyConfPath() + XMLmlFile); return true; } catch (Exception ex) { Log.WriteLog4("ReadConfig:" + ex.ToString(), LOGTYPE.ERRORD); return false; } } /// <summary> /// 儲存配置資訊 /// </summary> /// <returns></returns> public bool SaveConfig(T Config) { try { SerializableHelper.SerializeSetting<T>(Config, FileHelp.GetMyConfPath() + XMLmlFile); return true; } catch (Exception ex) { Log.WriteLog4("SaveConfig:" + ex.ToString(), LOGTYPE.ERRORD); return false; } } } }
XML配置檔案讀取示例
定義一個屬性類：
using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; namespace RTVSWeb.Models { /// <summary> /// 版本管理配置 /// </summary> public class VersionConfig { /// <summary> /// 建構函式初始化 /// </summary> public VersionConfig() { VersionFirst = 1; VersionSecond = 0; VersionThird = 0; UpgradeTag = "VersionThird"; CurrentVersion = "1.0.0"; } /// <summary> /// 一級版本號 /// </summary> public int VersionFirst { get; set; } /// <summary> /// 二級版本號 /// </summary> public int VersionSecond { get; set; } /// <summary> /// 三級版本號 /// </summary> public int VersionThird { get; set; } /// <summary> /// 升級標籤(VersionFirst|VersionSecond|VersionThird) /// </summary> public string UpgradeTag { get; set; } /// <summary> /// 當前版本號 /// </summary> public string CurrentVersion { get; set; } } }
讀取配置：
ConfigReader reader = new ConfigReader(“VersionConfig.xml”);
// 讀取版本配置檔案
if (!reader.ReadConfig())
{
reader.Config = new Models.VersionConfig();
reader.SaveConfig();
}不存在時輸出如下內容：
<?xml version="1.0" encoding="utf-8"?>
<VersionConfig xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<VersionFirst>1</VersionFirst>
<VersionSecond>0</VersionSecond>
<VersionThird>0</VersionThird>
<UpgradeTag>VersionThird</UpgradeTag>
<CurrentVersion>1.0.0</CurrentVersion>
</VersionConfig>