有人可以帮助了解发生了什么问题吗？？？
我将使用 multipart/formdata 请求将我的 .db 文件上传到服务器。我正在使用 ASIFormdataRequest 来形成请求，并且我得到了成功的响应。但是当我尝试下载文件时，我的磁盘映像格式错误。我正在粘贴代码
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
NSString* path = [self FilePath];
NSData *dataBaseData = [NSData alloc];
dataBaseData = [NSData dataWithContentsOfFile:path];
NSLog(@"databaselength %d",dataBaseData.length);
NSString* authHeader = [self returnAuthHeader];
NSLog(@"Auth Header %@", authHeader);
[request addRequestHeader:@"Accept" value:@"application/xml"];
[request addRequestHeader:@"Authorization" value:authHeader];
[request addRequestHeader:@"Content-Type" value:@"multipart/form-data"];
// [request setFile:dataBaseData withFileName:@"sample.db" andContentType:@"multipart/form-data" forKey:@"filedata"];
[request addData:dataBaseData withFileName:@"sample.db" andContentType:@"application/octet-stream" forKey:@"filedata"];
[request setPostFormat:ASIMultipartFormDataPostFormat];
[request setDelegate:self];
NSLog(@"Request %@",request);
[request updateUploadProgress];
[request startAsynchronous];