var carData:NSMutableDictionary = NSMutableDictionary();

var request:NSMutableURLRequest = NSMutableURLRequest();

    request.URL = NSURL(string: "YOUR URL ADDR");

    request.HTTPMethod = "POST";

    request.timeoutInterval = 10;

    var body:NSMutableData = NSMutableData();

    //设置表单分隔符

    var boundary:NSString = "----------------------1465789351321346";

    var contentType = NSString(format: "multipart/form-data;boundary=%@",boundary);

    request.addValue(contentType,forHTTPHeaderField: "Content-Type");

    //写入Info内容

    var keys:NSArray = carData.allKeys;

    for key in keys{

      body.appendData(NSString(format: "--%@rn",boundary).dataUsingEncoding(NSUTF8StringEncoding)!);

      body.appendData(NSString(format: "Content-Disposition:form-data;name="%@"rnrn",key as NSString).dataUsingEncoding(NSUTF8StringEncoding)!);

//如果有中文进行UTF8编码
      body.appendData("(carData.objectForKey(key) as String)rn".dataUsingEncoding(NSUTF8StringEncoding)!)

    }

    //写入图片内容

    var ImgPath = NSHomeDirectory()+(carData.valueForKey("imageSrc") as String);

    println(ImgPath)

    body.appendData(NSString(format: "--%@rn",243); white-space:pre-wrap; word-wrap:break-word; margin-top:0px; margin-bottom:0px; padding:0.5em 1em">    body.appendData(NSString(format: "Content-Disposition:form-data;name="%@";filename="(ImgPath)"rn","userfile").dataUsingEncoding(NSUTF8StringEncoding)!);

    var imageData:NSData = UIImageJPEGRepresentation(UIImage(contentsOfFile: ImgPath),1);

    body.appendData("Content-Type:image/jpegrnrn".dataUsingEncoding(NSUTF8StringEncoding)!)

    body.appendData(imageData);

    body.appendData("rn".dataUsingEncoding(NSUTF8StringEncoding)!)

    //写入尾部

    body.appendData(NSString(format: "--%@--rn",boundary).dataUsingEncoding(NSUTF8StringEncoding)!);

    request.HTTPBody = body;

    var urlResponse:NSHTTPURLResponse? = nil;

    var error:NSError? = NSError();

//第三方判断网络是否连接

    if IJReachability.isConnectedToNetwork() {

      NSURLConnection.sendAsynchronousRequest(request,queue: NSOperationQueue()) { (response,data,error) -> Void in

        if(error == nil){

          var json:NSDictionary = NSJSONSerialization.JSONObjectWithData(data,options: NSJSONReadingOptions.MutableContainers,error: nil) as NSDictionary;

          dispatch_async(dispatch_get_main_queue(),{

            loading.mode = MBProgressHUDMode.Text;

            if(json["success"] != nil){

//MBProgressHUD提示插件

              loading.mode = MBProgressHUDMode.CustomView;

              loading.customView = UIImageView(image: UIImage(named: "37x-Checkmark"))

              loading.labelText = "上传成功";

            }else if(json["failed"] != nil){

              loading.labelText = json["failed"] as String;

            }

            loading.hide(true,afterDelay: 1);

           // println(json);

          })

        }else{

            loading.labelText = error.localizedDescription;

            println(error.localizedDescription);

        }

      }

    }else{

      loading.mode = MBProgressHUDMode.CustomView;

      loading.customView = UIImageView(image: UIImage(named: "Wrongmark"))

      loading.labelText = noNetworkMsg;

      loading.hide(true,243); white-space:pre-wrap; word-wrap:break-word; margin-top:0px; margin-bottom:0px; padding:0.5em 1em">    }

效果图: