public void Delete(int id)
{
using var trans = repoService.DbContext.Database.BeginTransaction();
var dbBackupEntity = repoService.FindOne(id);
if (dbBackupEntity != null)
{
hostingEnvironment.DeleteFile(dbBackupEntity.FilePath);
repoService.Delete(dbBackupEntity);
}
trans.Commit();
}
/// <summary>
/// 将文件移动到指定目录
/// </summary>
/// <param name="env"></param>
/// <param name="sourceFilePath">需要移动的源文件的绝对路径</param>
/// <param name="descDirectoryPath">移动到的目录的绝对路径</param>
public static void Move(this IHostingEnvironment env, string sourceFilePath, string descDirectoryPath)
{
//获取源文件的名称
string sourceFileName = Path.GetFileName(sourceFilePath);
if (IsExistDirectory(descDirectoryPath))
{
var destFilePath = Path.Join(descDirectoryPath, sourceFileName);
//如果目标中存在同名文件,则删除
if (IsExistFile(destFilePath))
{
env.DeleteFile(destFilePath);
}
//将文件移动到指定目录
File.Move(sourceFilePath, destFilePath);
}
}
/// <summary>
/// 清空指定目录下所有文件及子目录,但该目录依然保存.
/// </summary>
/// <param name="env"></param>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void ClearDirectory(this IHostingEnvironment env, string directoryPath)
{
directoryPath = Path.Combine(env.ContentRootPath, directoryPath);
if (IsExistDirectory(directoryPath))
{
//删除目录中所有的文件
string[] fileNames = GetFileNames(directoryPath);
foreach (var fileName in fileNames)
{
env.DeleteFile(fileName);
}
//删除目录中所有的子目录
string[] directoryNames = GetDirectories(directoryPath);
foreach (var directoryName in directoryNames)
{
env.DeleteDirectory(directoryName);
}
}
}
