我正在使用Alamofire向服务器发送请求。现在，我必须使用其他参数将图像数组（多个图像）发送到服务器。我最多必须发送4张图像。请有人帮我，如何解决这个任务。我检查了StackOverflow的解决方案，但所有解决方案都像将单个图像发送到服务器。但是我想使用Alamofire发送多个图像，因为我有图像数组。
这是我的代码
func clockOutFor(userId: NSNumber, projectId: NSNumber, taskId: NSNumber, latitude: CLLocationDegrees, longitude: CLLocationDegrees, deviceClockOutTime: String, actualEndTime: String, clockOutNetworkInfo: String, clockOutBatteryStatus: String, totalDistance: NSNumber, durationTime: String, customeLabel1: String, customeLabel2: String, customeLabel3: String, customeLabel4: String, customeLabel5: String, imageDataArray: NSArray, completionHandler: @escaping CompletionBlock ) -> Void
{
let parameter : Parameters = ["gs_userId":userId, "gs_taskId":taskId, "gs_project_id":projectId, "gs_actual_end":actualEndTime, "gs_actual_end_lattitude":latitude, "gs_actual_end_longitude":longitude, "gs_clockout_device_time":deviceClockOutTime, "gs_clockout_network_status":clockOutNetworkInfo, "gs_clockout_battery_status":clockOutBatteryStatus, "gs_distance":totalDistance, "gs_time_taken":durationTime, "gs_custom1_label":customeLabel1, "gs_custom1_labe2":customeLabel2, "gs_custom1_labe3":customeLabel3, "gs_custom1_labe4":customeLabel4, "gs_custom1_labe5":customeLabel5] as [String : AnyObject]
let url = "clockout-update"
let fullUrl = baseUrl?.appendingPathComponent(url)
let headers: HTTPHeaders = [
"Authorization" : "Bearer \(token!)",
"Accept": "application/json",
"Connection": "keep-alive",
"Content-type": "multipart/form-data"
]
if token != nil {
Alamofire.upload(multipartFormData: { multipartFormData in
for i in 0..<imageDataArray.count{
let imageData1 = UIImageJPEGRepresentation(imageDataArray[i] as! UIImage, 1.0)!
multipartFormData.append(imageData1, withName: "morephoto[\(i)]" , fileName: "photo" + String(i) + ".jpg", mimeType: "image/jpeg")
}
for (key, value) in parameter {
print("Key and Value = ",key, value)
if let data = (value as AnyObject).data(using: String.Encoding.utf8.rawValue) {
multipartFormData.append(data, withName: key)
}
}
},
to: fullUrl!,method:HTTPMethod.post,
headers:headers, encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload
.validate()
.responseJSON { response in
print(response.request as Any) // original URL request
print(response.response as Any) // URL response
print(response.data as Any) // server data
print("Result",response.result) // result of response serialization
print("parameters = \(parameter)")
switch response.result {
case .success(let value):
completionHandler(value as AnyObject, "No error found")
print("responseObject: \(value)")
case .failure(let responseError):
print("responseError: \(responseError)")
}
}
case .failure(let encodingError):
print("encodingError: \(encodingError)")
let errorDesc = (encodingError as NSError).localizedDescription
completionHandler(errorDesc as NSString,"Some error found")
}
})
}
}
我在此行遇到一个错误
if let data = (value as AnyObject).data(using: String.Encoding.utf8.rawValue)
我认为只期望字符串参数，但是我同时具有String和NSNumber。所以这是我的问题，如何对值string和NSNumber进行编码。请有人帮助/建议我。
答案 0 :(得分：0)
使用此方法在服务器上上传图像数组。 （如果您的服务器接受它们）。
class func uploadImageCall(arrayOfImageToUpload:[UIImage]){
Alamofire.upload(multipartFormData: { (multipartFormData : MultipartFormData) in
let count = arrayOfImageToUpload.count
for i in 0..<count{
multipartFormData.append(arrayOfImageToUpload[i], withName: "morephoto[\(i)]", fileName: "photo\(i).jpeg" , mimeType: "image/jpeg")
}
for (key, value) in parameterrs {
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
}
print(multipartFormData)
}, to: url!) { (result) in
switch result {
case .success(let upload, _ , _):
upload.uploadProgress(closure: { (progress) in
print("uploding: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
print(response.result.value!)
}
case .failure(let encodingError):
print("failed")
print(encodingError)
}
}
}
使用arrayOfImageToUpload作为参数。并在您要上传图像的类中调用此方法。
答案 1 :(得分：0)
使用下方方法通过Alamofire发送具有不同参数的多张图像。
this.carSection = this.car.sections[iSectionIndex]
答案 2 :(得分：0)
func mulipartImageupload()
{
doOnMain {
Loading.sharedInstance.startloading()
}
let url = NSURL(string:"\(Constant.BaseURL)")
let request = NSMutableURLRequest(url: url! as URL)
request.httpMethod = "POST"
var headers = ["Content-Type":"application/x-www-form-urlencoded"]
let boundary = generateBoundaryString()
//define the multipart request type
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
if !GlobalClass.sharedInstance.getCustomerKey().isEmpty {
headers = ["Accept-Language": "en",
"Authorization" : "Token"]
}
request.allHTTPHeaderFields = headers
let image_data = productImage.jpeg(.lowest)
if(image_data == nil){
return
}
let image_data1 = productImage1.jpeg(.lowest)
if(image_data1 == nil){
return
}
let body = NSMutableData()
let fname = "parameter1"
let fname1 = "parameter2"
let mimetype = "image/png"
let parameters = dict
if parameters != nil {
for (key, value) in parameters {
body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append("\(value)\r\n".data(using: String.Encoding.utf8)!)
}
}
if isFrontImage == true {
body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"test\"\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append("hi\r\n".data(using: String.Encoding.utf8)!)
body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"parameter1\"; filename=\"\(fname)\"\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Type: \(mimetype)\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append(image_data!)
}
if isBackImage == true {
body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"test\"\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append("hi\r\n".data(using: String.Encoding.utf8)!)
body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"parameter2\"; filename=\"\(fname1)\"\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Type: \(mimetype)\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append(image_data1!)
}
body.append("\r\n".data(using: String.Encoding.utf8)!)
body.append("--\(boundary)--\r\n".data(using: String.Encoding.utf8)!)
request.httpBody = body as Data
let session = URLSession.shared
let task = session.dataTask(with: request as URLRequest) {
(
data, response, error) in
guard let _:NSData = data! as NSData, let _:URLResponse = response, error == nil else {
print("error")
return
}
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("****** response data = \(responseString!)")
do {
let json = try JSONSerialization.jsonObject(with: data!, options: []) as? NSDictionary
let dict = json?.value(forKey: "data") as? NSDictionary ?? [:]
print("****** response json = \(json!)")
if json?.value(forKeyPath: "status") as? Int == 200 {
let dict = json?.value(forKey: "data") as? NSDictionary ?? [:]
DispatchQueue.main.async {
Loading.sharedInstance.stoploading()
}
}
else{
Loading.sharedInstance.stoploading()
}
}catch{
print(error)
Loading.sharedInstance.stoploading()
}
}
task.resume()
}
func generateBoundaryString() -> String {
return "Boundary-\(NSUUID().uuidString)"
}
extension UIImage {
enum JPEGQuality: CGFloat {
case lowest = 0
case low = 0.25
case medium = 0.5
case high = 0.75
case highest = 1
}
/// Returns the data for the specified image in JPEG format.
/// If the image object’s underlying image data has been purged, calling this function forces that data to be reloaded into memory.
/// - returns: A data object containing the JPEG data, or nil if there was a problem generating the data. This function may return nil if the image has no data or if the underlying CGImageRef contains data in an unsupported bitmap format.
func jpeg(_ jpegQuality: JPEGQuality) -> Data? {
return jpegData(compressionQuality: jpegQuality.rawValue)
}
}