在 swift 中使用 httprequest 发送带有图像上传的字符串数据

Question

我只想通过此请求发送日期：

var variables:String = "picture_title=" + pictit + "&"
variables += "picture_desc=" + picdes + "&"
variables += "category=" + tagfinal

我想将上述值与图像文件一起传递。以下代码可以正常上传图片，但我无法向用于将字符串数据发送到 php 文件的此代码添加其他参数。

var imageData :NSData = UIImageJPEGRepresentation(imagenReduced, 1.0);       
var request: NSMutableURLRequest?
let HTTPMethod: String = "POST"
var timeoutInterval: NSTimeInterval = 60
var HTTPShouldHandleCookies: Bool = false

request = NSMutableURLRequest(URL: url)
request!.HTTPMethod = HTTPMethod
request!.timeoutInterval = timeoutInterval
request!.HTTPShouldHandleCookies = HTTPShouldHandleCookies

let boundary = "----------SwIfTeRhTtPrEqUeStBoUnDaRy"
let contentType = "multipart/form-data; boundary=\(boundary)"
request!.setValue(contentType, forHTTPHeaderField:"Content-Type")
var body = NSMutableData();

let tempData = NSMutableData()
let fileName = filenames + ".jpg" //"prueba.jpg"
let parameterName = "userfile"

let mimeType = "application/octet-stream"

tempData.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
let fileNameContentDisposition = fileName != nil ? "filename=\"\(fileName)\"" : ""
let contentDisposition = "Content-Disposition: form-data; name=\"\(parameterName)\"; \(fileNameContentDisposition)\r\n"
tempData.appendData(contentDisposition.dataUsingEncoding(NSUTF8StringEncoding)!)
tempData.appendData("Content-Type: \(mimeType)\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
tempData.appendData(imageData)
tempData.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

body.appendData(tempData)

body.appendData("\r\n--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

request!.setValue("\(body.length)", forHTTPHeaderField: "Content-Length")
request!.HTTPBody = body

var vl_error :NSErrorPointer = nil
var responseData  = NSURLConnection.sendSynchronousRequest(request,returningResponse: nil, error:vl_error)

var results = NSString(data:responseData, encoding:NSUTF8StringEncoding)
println("finish \(results)")

Answer 1

只需尝试使用著名的 Alomafire 库即可。 Mattt 和社区在完善该库方面做得很好。在那里你会找到你正在寻找的方法，包括使用一些参数将图像传递给服务器。您特别要找的是：

    Alamofire.upload(
    .POST,
    "http://httpbin.org/post",
    multipartFormData: { multipartFormData in
        multipartFormData.appendBodyPart(fileURL: unicornImageURL, name: "unicorn")
        multipartFormData.appendBodyPart(fileURL: rainbowImageURL, name: "rainbow")
    },
    encodingCompletion: { encodingResult in
        switch encodingResult {
        case .Success(let upload, _, _):
            upload.responseJSON { response in
                debugPrint(response)
            }
        case .Failure(let encodingError):
            print(encodingError)
        }
    }
)

在 swift 中使用 httprequest 发送带有图像上传的字符串数据

Send the string data with the image upload using httprequest in swift

nsurlconnection

ios

swift