在Swift中使用其他参数上传多张图片 [英] Uploading multiple images with other parameters in Swift

问题描述

现在，我通过下面给出的代码仅将一个图像上传到服务器端脚本上的服务器.现在我有一个UIImage数组，我想知道如何使用UIImageJPEGRepresentation(myImageView.image!, 0.1)将所有图像发布到UIImageView数组中?

Right now I've been uploading only one image to a server on a server side script through the code given below. Now I have an array of UIImage, I want to know how can I use UIImageJPEGRepresentation(myImageView.image!, 0.1) to post all the images in a UIImageView array?

func uploadImage()
{
    let postPictureUrl = NSURL(string: "http://www.23look.com/merchant/verify")
    let request = NSMutableURLRequest(URL: postPictureUrl!)
    request.HTTPMethod="POST"

    let param=[
        "mer_name" : shopNameUITF.text!,
        "mer_tel" : shopTelephoneUITF.text!,
        "mer_address" : shopAddressUITF.text!,
        "lat" : "39.6892",
        "lng" : "115.9239",
        "token": KeychainWrapper.stringForKey("tokenValue")!,
        "mer_type": "smalll"
    ]

    let abc =  KeychainWrapper.stringForKey("tokenValue")!

    let boundary = generateBoundaryString()

    request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")

    let imageData = UIImageJPEGRepresentation(myImageView.image!, 0.1)

    if imageData==nil { print("image data is nil"); return }

    request.HTTPBody = createBodyWithParameters(param, filePathKey: "mer_license", imageDataKey: imageData!, boundary: boundary)

    let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
        data, response, error in

        if error != nil {
            print("error=\(error)")
            return
        }

        //You can print out response object
        print("***** response = \(response)")

        // Print out reponse body
        let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
        print("**** response data = \(responseString!)")

        do {

            let json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary

            dispatch_async(dispatch_get_main_queue(), {
                print(NSString(data: data!, encoding:NSUTF8StringEncoding)!)
                print(json)
            })

        } catch let err {
            print(err)
        }
    }
    task.resume()
}

func generateBoundaryString() -> String {
    return "Boundary-\(NSUUID().UUIDString)"
}

func createBodyWithParameters(parameters:[String:String]?, filePathKey: String?, imageDataKey:NSData, boundary: String) -> NSData {

    var body=NSMutableData()

    if parameters != nil {
        for(key, value) in parameters! {
            body.appendString("--\(boundary)\r\n")
            body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
            body.appendString("\(value)\r\n")
        }
    }

    let filename = "user-profile.jpg"
    let mimetype = "image/jpg"

    body.appendString("--\(boundary)\r\n")
    body.appendString("Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename)\"\r\n")
    body.appendString("Content Type: \(mimetype)\r\n\r\n")
    body.appendData(imageDataKey)
    body.appendString("\r\n")

    body.appendString("-\(boundary)-\r\n")

    return body
}

它具有以下参数:

mer_name-字符串

mer_name - String

mer_tel-字符串

mer_tel - String

mer_address-字符串

mer_address - string

lng-字符串

lat-字符串

mer_licence-文件类型(这是我的图像将被上传到的位置)

mer_licence - file type (This is where my images will be uploaded)

令牌-字符串

mer_type-字符串

mer_type - string

推荐答案

您应该在createBodyWithParameters中进行如下更改.........

You should do changes in createBodyWithParameters like below.........

当您有多张图片时...

When you have multiple images...

  func createBodyWithParameters(parameters: NSMutableDictionary?,boundary: String) -> NSData {
    let body = NSMutableData()

    if parameters != nil {
        for (key, value) in parameters! {

            if(value is String || value is NSString){
                body.appendString("--\(boundary)\r\n")
                body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
                body.appendString("\(value)\r\n")
            }
            else if(value is [UIImage]){
                var i = 0;
                for image in value as! [UIImage]{
                    let filename = "image\(i).jpg"
                    let data = UIImageJPEGRepresentation(image,1);
                    let mimetype = mimeTypeForPath(filename)

                    body.appendString("--\(boundary)\r\n")
                    body.appendString("Content-Disposition: form-data; name=\"\(key)\"; filename=\"\(filename)\"\r\n")
                    body.appendString("Content-Type: \(mimetype)\r\n\r\n")
                    body.appendData(data!)
                    body.appendString("\r\n")
                    i++;
                }


            }
        }
    }
    body.appendString("--\(boundary)--\r\n")
    //        NSLog("data %@",NSString(data: body, encoding: NSUTF8StringEncoding)!);
    return body
}

func generateBoundaryString() -> String {
    return "Boundary-\(NSUUID().UUIDString)"

}

func mimeTypeForPath(path: String) -> String {
    let pathExtension = path.pathExtension
    var stringMimeType = "application/octet-stream";
    if let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension!, nil)?.takeRetainedValue() {
        if let mimetype = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)?.takeRetainedValue() {
            stringMimeType = mimetype as NSString as String
        }
    }
    return stringMimeType;
}



func createRequest (param : NSMutableDictionary , strURL : String) -> NSURLRequest {

    let boundary = generateBoundaryString()

    let url = NSURL(string: strURL)
    let request = NSMutableURLRequest(URL: url!)

    request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
    request.HTTPMethod = "POST"
    request.HTTPBody = createBodyWithParameters(param, boundary: boundary)

    return request
}

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