87 lines
3.2 KiB
C#
87 lines
3.2 KiB
C#
using System.Text;
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namespace Atomx.Utils.Extension
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{
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public static class PathExtension
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{
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/// <summary>
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/// 是否是绝对路径
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/// windows下判断 路径是否包含 ":"
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/// Mac OS、Linux下判断 路径是否包含 "\"
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static bool IsAbsolute(this string path)
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{
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return Path.VolumeSeparatorChar == ':' ? path.IndexOf(Path.VolumeSeparatorChar) > 0 : path.IndexOf('\\') > 0;
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}
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/// <summary>
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/// 获取文件绝对路径
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static string MapPath(string root, string path)
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{
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return path.IsAbsolute() ? path : Path.Combine(root, path.TrimStart('~', '/').Replace('/', Path.DirectorySeparatorChar));
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}
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/// <summary>
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/// 检测指定路径是否存在
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/// </summary>
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/// <param name="path">路径</param>
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/// <param name="isDirectory">是否是目录</param>
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/// <returns></returns>
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public static bool IsExist(string root, string path, bool isDirectory)
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{
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if (isDirectory)
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{
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return Directory.Exists(path.IsAbsolute() ? path : MapPath(root, path));
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}
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else
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{
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return File.Exists(path.IsAbsolute() ? path : MapPath(root, path));
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}
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}
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/// <summary>
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/// 根据指定目录，当前日期和扩展名，获取一个完整的存储路径和名称
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/// </summary>
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/// <param name="path">指定存储文件根目录，默认 upload，</param>
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/// <param name="fixedpath">是否固定存储在根目录，如果不固定，将自动根据时间生成子文件夹进行存储</param>
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/// <param name="name">存储文件名，如果为空将自动生成文件名</param>
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/// <param name="extension">文件存储后缀，不能为空</param>
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/// <returns></returns>
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public static string GetFileNameByData(string path, bool fixedpath, string name, string extension)
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{
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if (string.IsNullOrEmpty(extension)) throw new ArgumentNullException("extension");
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if (!extension.StartsWith(".")) extension = "." + extension;
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if (string.IsNullOrEmpty(path))
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{
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path = "/uploads";
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}
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if (path.StartsWith("/")) path = path.Substring(1, path.Length - 1);
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if (path.EndsWith("/")) path = path.Substring(0, path.Length - 1);
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StringBuilder fileName = new StringBuilder(path);
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if (!fixedpath)
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{
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fileName.AppendFormat("/{0}/{1}/", DateTime.Now.ToString("yyyyMM"), DateTime.Now.ToString("dd"));
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}
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if (string.IsNullOrEmpty(name))
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{
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Random random = new Random(Guid.NewGuid().GetHashCode());
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fileName.Append(DateTime.Now.ToString("yyyyMMddHHmmss") + random.Next(1000, 10000));
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}
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else
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{
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fileName.Append("/" + name);
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}
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return fileName.ToString() + extension;
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}
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}
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}
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