public IActionResult ValidateFile([FromBody] ValidateFileModel model)
{
var folder = Path.Combine(_hostingEnvironment.WebRootPath, "chunk\\" + model.uid + "\\");
// 扩展名
var extName = model.fileName.Substring(model.fileName.LastIndexOf('.')).Replace("\"", "");
if (Directory.GetFiles(folder).Length == model.chunks)//总文件数等于总切片数
{
model.extName = extName;
var filename = MergeFiles(model);
return(Ok(new { isValid = true }));
}
else
{
return(Ok(new { isValid = false }));
}
}
public string MergeFiles(ValidateFileModel model)
{
string sourcePath = Path.Combine(_hostingEnvironment.WebRootPath, "chunk\\" + model.uid + "\\"); //源数据文件夹
string fileName = Guid.NewGuid().ToString();
string targetPath = Path.Combine(_hostingEnvironment.WebRootPath, $"{fileName}.{model.extName}"); //合并后的文件
DirectoryInfo dicInfo = new DirectoryInfo(sourcePath);
if (Directory.Exists(Path.GetDirectoryName(sourcePath)))
{
FileInfo[] files = dicInfo.GetFiles();
foreach (FileInfo file in files.OrderBy(f => int.Parse(f.Name)))
{
FileStream addFile = new FileStream(targetPath, FileMode.Append, FileAccess.Write);
BinaryWriter AddWriter = new BinaryWriter(addFile);
//获得上传的分片数据流
Stream stream = file.Open(FileMode.Open);
BinaryReader TempReader = new BinaryReader(stream);
//将上传的分片追加到临时文件末尾
AddWriter.Write(TempReader.ReadBytes((int)stream.Length));
//关闭BinaryReader文件阅读器
TempReader.Close();
stream.Close();
AddWriter.Close();
addFile.Close();
TempReader.Dispose();
stream.Dispose();
AddWriter.Dispose();
addFile.Dispose();
}
DeleteFolder(sourcePath);
return(fileName);
}
else
{
throw new IOException("找不到数据块");
}
}
