如何在iOS上將圖像數據上傳到服務器？

Question

我想使用swift將我的圖像數據存儲在iOS服務器上。我試過下面的代碼，但它不工作我必須做什麼改變？

想上傳6張圖片。 this is my controller view, after clicking save it want to store at server

func myImageUploadRequest() 
{ 

    let myUrl = NSURL(string: "http://easemyshop.in/upload_test/new.php"); 
    //let myUrl = NSURL(string: "http://easemyshop.in/upload_test/new.php"); 

    let request = NSMutableURLRequest(url:myUrl! as URL); 
    request.httpMethod = "POST"; 

    let param = [ 


     "tag" : "all", 
     "count" : "1", 
     "shopname" : "MayurShop", 
     "partyName" : "Paras", 
     "cur_date" : "14-06-2017", 
     "due_date" : "20-06-2017", 
     "karagir" : "Santra", 
     "remark" : "Urgent", 
     "order_status" : "Order Reccived" 

    /* 
     "firstName" : "Mayur", 
     "lastName" : "Shinde", 
     "userId" : "101" 

     */ 
    ] 

    let boundary = generateBoundaryString() 

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


    let imageData = UIImageJPEGRepresentation((imageView?.image!)!, 1) 

    if(imageData==nil) { return; } 

    request.httpBody = createBodyWithParameters(parameters: param, filePathKey: "file", imageDataKey: imageData! as NSData, boundary: boundary) as Data 

    myActivityIndicator.isHidden = false 
    myActivityIndicator.startAnimating(); 

    let task = URLSession.shared.dataTask(with: request as URLRequest) 
    { 
     data, response, error in 

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

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

     // Print out reponse body 
     let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue) 

     print("\n\n****** response data *******\n\n") 
     print("\(responseString!)") 
     print("\n\n**************************\n\n") 

     do 
     { 
      let json = try JSONSerialization.jsonObject(with: data!, options: []) as? NSDictionary 

      print("\n\n*************\n\n") 
      print(json!) 
      print("\n\n*************\n\n") 

      DispatchQueue.main.async(execute: { 
       self.myActivityIndicator.stopAnimating() 
       self.myActivityIndicator.isHidden = true 
       //self.imageView?.image = nil; 
      }); 

     } 
     catch 
     { 
      print("\n\n*************ERROR******** => \(error)\n\n") 
     } 

    } 

    task.resume() 
} 


func createBodyWithParameters(parameters: [String: String]?, filePathKey: String?, imageDataKey: NSData, boundary: String) -> NSData { 
    let body = NSMutableData(); 

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

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

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



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

    return body 
} 



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

Answer 1

func webServiceImageUploadForMyProfile(image:UIImage,url:String,method:HTTPMethod,parameters : [String:AnyObject]?,completionHandler:@escaping (JSON?,String)->Void) { 

    let url = try! URLRequest(url: url, method: .post, headers: nil) 
    Alamofire.upload(multipartFormData:{ multipartFormData in 
     if let imageData = UIImageJPEGRepresentation(image, 0.6) { 
      multipartFormData.append(imageData, withName: "image", fileName: "Profile.png", mimeType: "image/png") 
     } 
     for (key, value) in parameters! { 
      multipartFormData.append(value.data(using: String.Encoding.utf8.rawValue)!, withName: key) 
     } 
     }, with: url, encodingCompletion: { 
      encodingResult in 
      switch encodingResult { 
      case .success(let upload, ,): 
       upload.uploadProgress(closure: { (progress) in 
        print("Upload Progress: \(progress.fractionCompleted)") 
       }) 
       upload.responseJSON { response in 
        if(response.result.isSuccess){ 
         if let data = response.result.value{ 
          let json = JSON(data) 
          print(json) 
          completionHandler(json,String()) 
          return 
         } 
        }else { 
         completionHandler(nil,(response.result.error?.localizedDescription)!) 
        } 
        } 

      case .failure(_): 

       break 
      } 
    }) 
} 

請嘗試...

Answer 2

請給下面的代碼將圖片上傳您的服務器上一試，也有一個替代文件名變量值要在其中發送將圖像文件發送到您的服務器。

func uploadImage(urlString:String,headers:[String:String]?,params:[String:String]?,image:UIImage?){ 
    let boundary: String = "------VohpleBoundary4QuqLuM1cE5lMwCy" 
    let contentType: String = "multipart/form-data; boundary=\(boundary)" 

    let request = NSMutableURLRequest() 
    if let tHeaders = headers { 
     for (key, value) in tHeaders { 
      request.setValue(value, forHTTPHeaderField: key) 
     } 
    } 
    request.httpShouldHandleCookies = false 
    request.timeoutInterval = 60 
    request.httpMethod = "POST" 
    request.setValue(contentType, forHTTPHeaderField: "Content-Type") 

    let body = NSMutableData() 
    if let parameters = params { 
     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)!) 
     } 
    } 
    //which field you have to sent image on server 
    let fileName: String = "file" 
    if image != nil { 
     body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!) 
     body.append("Content-Disposition: form-data; name=\"\(fileName)\"; filename=\"image.png\"\r\n".data(using: String.Encoding.utf8)!) 
     body.append("Content-Type:image/png\r\n\r\n".data(using: String.Encoding.utf8)!) 
     body.append(UIImagePNGRepresentation(image!)!) 
     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 
     if(error != nil){ 
      print(String(data: data!, encoding: .utf8) ?? "No response from server") 
     } 
    } 
    task.resume() 
} 

在你的PHP服務器，你可以得到你這樣的文件名

<?php 
    echo $_FILES['file']['name']; 
?>