控制台应用程序：Environment.CurrentDirectory、Directory.GetCurrentDirectory()
windows服务：Environment.CurrentDirectory
windows服务安装成功后：

/// /// public static string GetWindowsServiceInstallPath(string ServiceName)

{

string key = @"SYSTEM\CurrentControlSet\Services\" + ServiceName;

string path = Registry.LocalMachine.OpenSubKey(key).GetValue("ImagePath").ToString();

//替换掉双引号

path = path.Replace("\"", string.Empty);

FileInfo fi = new FileInfo(path);

return fi.FullName;

//return fi.FullName.Directory.ToString();

}

//windows 服务中使用log4net
string assemblyFilePath = Assembly.GetExecutingAssembly().Location;
string assemblyDirPath = Path.GetDirectoryName(assemblyFilePath);
string configFilePath = assemblyDirPath + "//log4net.config";
DOMConfigurator.ConfigureAndWatch(new FileInfo(configFilePath));

/// <summary> /// 获取应用程序web.config中的文件配置路径，并返回物理路径 /// 适用于web应用程序 /// </summary> /// <param name="key"></param> /// <returns></returns> public static string GetFileFullpath(string key) { if (string.IsNullOrEmpty(key)) return string.Empty; //获取应用程序的web.config中配置的路径 string appSetting = System.Configuration.ConfigurationManager.AppSettings[key].ToString(); //如果到的路径不是物理路径，则映射为物理路径 if (!Path.IsPathRooted(appSetting)) appSetting = System.Web.HttpContext.Current.Server.MapPath(appSetting); return appSetting; }

/// <summary>
/// 获取应用程序.config中的文件配置路径，并返回物理路径
/// 适用于windows服务、控制台等应用程序
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static string GetAssemblyPath(string key)
{
if (string.IsNullOrEmpty(key)) return string.Empty;

//获取应用程序的web.config中配置的路径 string appSetting = System.Configuration.ConfigurationManager.AppSettings[key].ToString(); //如果到的路径不是物理路径，则映射为物理路径 if (!Path.IsPathRooted(appSetting)) { string assemblyPath = System.Reflection.Assembly.GetExecutingAssembly().Location; string dirName = Path.GetDirectoryName(assemblyPath); if (dirName.IndexOf(@"\bin\Debug") > -1) appSetting = dirName.Replace(@"\bin\Debug", appSetting.Substring(1).Replace(@"/", @"\")); else appSetting = dirName + appSetting.Substring(1).Replace(@"/", @"\"); } return appSetting; }

/// <summary>
/// 获取应用程序.config中的文件配置路径，并返回物理路径
/// 适用于windows服务应用程序的成功安装之后
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static string GetInstallPath(string key)
{
if (string.IsNullOrEmpty(key)) return string.Empty;

//获取应用程序的web.config中配置的路径 string appSetting = System.Configuration.ConfigurationManager.AppSettings[key].ToString(); //如果到的路径不是物理路径，则映射为物理路径 if (!Path.IsPathRooted(appSetting)) { string processPath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName; appSetting = processPath.Substring(0, processPath.LastIndexOf(@"\")) + appSetting.Substring(1).Replace(@"/", @"\"); } return appSetting; }