有一个着名的Apple Developer blog也支持.但还不清楚NSURLSession API是否支持ftp上传？ (我尝试以建议和获得错误的方式).

以常规方式CFFTPStreamRef,ftp上传工作正常,但在9.0中已被弃用.标题说：CF_DEPRECATED(10_3,10_11,2_0,9_0,“使用NSURLSessionAPI作为ftp请求”)

任何想法,例子或链接来获得帮助.我现在正在尝试这样的事情：

NSURL *url_upload = [NSURL URLWithString:@"ftp://username:password@thelink/myfolder/filename.zip"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url_upload];
    [request setHTTPMethod:@"PUT"];
NSURL *docsDirURL = [NSURL fileURLWithPath:filePath];

NSURLProtectionSpace * protectionSpace = [[NSURLProtectionSpace alloc] initWithHost:url_upload.host port:[url_upload.port integerValue] protocol:url_upload.scheme realm:nil authenticationMethod:nil];

NSURLCredential *cred = [NSURLCredential
                         credentialWithUser:userId
                         password:password
                         persistence:NSURLCredentialPersistenceForSession];


NSURLCredentialStorage * cred_storage ;
[cred_storage setCredential:cred forProtectionSpace:protectionSpace];
NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
sessionConfig.URLCredentialStorage = cred_storage;
sessionConfig.timeoutIntervalForRequest = 30.0;
sessionConfig.timeoutIntervalForResource = 60.0;
sessionConfig.allowsCellularAccess = YES;
sessionConfig.HTTPMaximumConnectionsPerHost = 1;
NSURLSession *upLoadSession = [NSURLSession sessionWithConfiguration:sessionConfig delegate:self delegateQueue:nil];
NSURLSessionUploadTask *uploadTask = [upLoadSession uploadTaskWithRequest:request fromFile:docsDirURL];
[uploadTask resume];