/// <summary>
/// 删除文件
/// </summary>
/// <param name="file">要删除的文件路径和名称</param>
public static void DeleteFile(string file)
{
if (System.IO.File.Exists(PathHelper.CombineWithBaseDirectory(file)))
{
System.IO.File.Delete(PathHelper.CombineWithBaseDirectory(file));
}
}
public static bool SaveFile(this IFormFile file)
{
try
{
var filename = ContentDispositionHeaderValue
.Parse(file.ContentDisposition)
.FileName
.Trim('"');
string newFileName = Path.GetFileNameWithoutExtension(filename) + "-" + DateTime.Now.ToString("yyyyMMddHHmmss") + Path.GetExtension(filename);
filename = PathHelper.CombineWithBaseDirectory(newFileName);
using (FileStream fs = System.IO.File.Create(filename))
{
file.CopyTo(fs);
fs.Flush();
}
return(true);
}
catch (Exception)
{
throw;
}
return(false);
}
/// <summary>
/// 复制文件
/// </summary>
/// <param name="dir1">要复制的文件的路径已经全名(包括后缀)</param>
/// <param name="dir2">目标位置,并指定新的文件名</param>
public static void CopyFile(string dir1, string dir2)
{
dir1 = dir1.Replace("/", "\\");
dir2 = dir2.Replace("/", "\\");
if (System.IO.File.Exists(PathHelper.CombineWithBaseDirectory(dir1)))
{
System.IO.File.Copy(PathHelper.CombineWithBaseDirectory(dir1), PathHelper.CombineWithBaseDirectory(dir2), true);
}
}
/// <summary>
/// 创建文件
/// </summary>
/// <param name="dir">相对路径</param>
/// <param name="pagestr">文件内容</param>
public static void CreateFile(string dir, string pagestr)
{
dir = dir.Replace("/", "\\");
if (dir.IndexOf("\\") > -1)
{
CreateDir(dir.Substring(0, dir.LastIndexOf("\\")));
}
System.IO.StreamWriter sw = new System.IO.StreamWriter(PathHelper.CombineWithBaseDirectory(dir), false, System.Text.Encoding.GetEncoding("utf-8"));
sw.Write(pagestr);
sw.Close();
}
/// <summary>
/// 删除目录
/// </summary>
/// <param name="dir">要删除的目录路径和名称</param>
public static void DeleteDir(string dir)
{
if (dir.Length == 0)
{
return;
}
if (Directory.Exists(PathHelper.CombineWithBaseDirectory(dir)))
{
Directory.Delete(PathHelper.CombineWithBaseDirectory(dir));
}
}
public string GetLogPath(string customDirectory, string preFile)
{
string newFilePath = string.Empty;
//String logDir = string.IsNullOrEmpty(customDirectory) ? Path.Combine(Environment.CurrentDirectory, "logs") : customDirectory;
String logDir = string.IsNullOrEmpty(customDirectory) ? PathHelper.CombineWithBaseDirectory("logs") : customDirectory;
if (!Directory.Exists(logDir))
{
Directory.CreateDirectory(logDir);
}
string extension = ".log";
string fileNameNotExt = String.Concat(preFile, DateTime.Now.ToString("yyyyMMdd"));
String fileName = String.Concat(fileNameNotExt, extension);
string fileNamePattern = string.Concat(fileNameNotExt, "(*)", extension);
List <string> filePaths = new List <string>(Directory.GetFiles(logDir, fileNamePattern, SearchOption.TopDirectoryOnly));
List <string> correctFilePaths = new List <string>();
if (filePaths.Count > 0)
{
foreach (string fPath in filePaths)
{
string no = new Regex(@"(?is)(?<=\()(.*)(?=\))").Match(Path.GetFileName(fPath)).Value;
int tempno = 0;
if (int.TryParse(no, out tempno))
{
correctFilePaths.Add(fPath);
}
}
}
if (correctFilePaths.Count > 0)
{
correctFilePaths.Sort((x, y) => x.CompareTo(y));
int fileMaxLen = 0;
for (int i = 0; i < correctFilePaths.Count; i++)
{
int itemLength = correctFilePaths[i].Length;
fileMaxLen = itemLength > fileMaxLen ? itemLength : fileMaxLen;
}
string lastFilePath = correctFilePaths.FindLast(d => d.Length == fileMaxLen);
long actualSize = new FileInfo(lastFilePath).Length;
long maxSize = 10 * 1024 * 1024;//(1 * 1024 * 1024 = 1M);
if (actualSize < maxSize)
{
newFilePath = lastFilePath;
}
else
{
string no = new Regex(@"(?is)(?<=\()(.*)(?=\))").Match(Path.GetFileName(lastFilePath)).Value;
int tempno = 0;
bool parse = int.TryParse(no, out tempno);
string formatno = String.Format("({0})", parse ? (tempno + 1) : tempno);
string newFileName = String.Concat(fileNameNotExt, formatno, extension);
newFilePath = Path.Combine(logDir, newFileName);
}
}
else
{
string newFileName = String.Concat(fileNameNotExt, String.Format("({0})", 0), extension);
newFilePath = Path.Combine(logDir, newFileName);
}
return(newFilePath);
}