我已尝试过此代码，但无法正确上传文件。
// string constant for the post parameter 'file'. My server uses this name: `file`. Your's may differ
NSString* FileParamConstant = @"file";
// the server url to which the image (or video) is uploaded. Use your server url here
url = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@%d",baseURL,@"posts/post/update/",createPostObject.PostID]];
// create request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setTimeoutInterval:120];
[request setHTTPMethod:@"POST"];
[request addValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
[request setURL:url];
// set Content-Type in HTTP header
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", BoundaryConstant];
[request setValue:contentType forHTTPHeaderField: @"Content-Type"];
if([[NSUserDefaults standardUserDefaults] objectForKey:@"accessToken"]){
[request setValue:[[NSUserDefaults standardUserDefaults] objectForKey:@"accessToken"] forHTTPHeaderField:AccessTokenKey];
}
// post body
NSMutableData *body = [NSMutableData data];
// add params (all params are strings)
for (NSString *param in self.postParams) {
NSLog(@"param is %@",param);
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", param] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"%@\r\n", [self.postParams objectForKey:param]] dataUsingEncoding:NSUTF8StringEncoding]];
}
// add video file name to body
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"file.mp4\"\r\n", FileParamConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Type: video/mp4\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
// [body appendData:self.dataToPost];
[body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the request
[request setHTTPBody:body];
// set the content-length
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[body length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
NSLog(@"Request body %@", [[NSString alloc] initWithData:[request HTTPBody] encoding:NSUTF8StringEncoding]);
NSURLSessionConfiguration * backgroundConfig = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:@"backgroundtask1"];
NSURLSession *backgroundSeesion = [NSURLSession sessionWithConfiguration: backgroundConfig delegate:self delegateQueue: [NSOperationQueue mainQueue]];
答案 0 :(得分：0)
我找到了解决方案
-(void)multipleimageandstring
{
NSString *urlString=@"http://52.221.232.12/bca/banner_add.php";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSMutableData *body = [NSMutableData data];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
[request addValue:contentType forHTTPHeaderField:@"Content-Type"];
// file
float low_bound = 0;
float high_bound =5000;
float rndValue = (((float)arc4random()/0x100000000)*(high_bound-low_bound)+low_bound);//image1
int intRndValue = (int)(rndValue + 0.5);
NSString *str_image1 = [@(intRndValue) stringValue];
UIImage *chosenImage1=[UIImage imageNamed:@"air.png"];
NSData *imageData = UIImageJPEGRepresentation(chosenImage1, 90);
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"banner_image\"; filename=\"%@.png\"\r\n",str_image1] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"banner_title\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Nilesh" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"admin_id\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"1" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
// close form
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// set request body
[request setHTTPBody:body];
//return and test
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"%@", returnString);
}
答案 1 :(得分：0)
func addAppointment() -> Void {
let parameters = ["user_id":"68","subject":txtSubject.text!,"admin_id":"21","appointment_by":"1","appoinment_date":txtAppointmentDate.text!,"appoinment_time":txtAppointmentTime.text!]
EZLoadingActivity.show("", disableUI: true)
Alamofire.upload(multipartFormData: { multipartFormData in
multipartFormData.append(self.imageData as Data, withName: "appointment_attachment",fileName: "file.jpg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
}
},
to:"http://52.221.232.10/BCA/appointment_booking.php")
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
print(response.result.value!)
EZLoadingActivity.hide()
let dataDic = response.result.value! as! NSDictionary
let msg = dataDic.value(forKey: "message")
let alert = UIAlertController(title: "", message: msg as? String, preferredStyle: .alert)
let alertActionOk = UIAlertAction(title: "Ok", style: .default, handler: nil)
alert.addAction(alertActionOk)
self.present(alert, animated: true, completion: nil)
}
case .failure(let encodingError):
print(encodingError)
let msg = encodingError
let alert = UIAlertController(title: "", message: msg as? String, preferredStyle: .alert)
let alertActionOk = UIAlertAction(title: "Ok", style: .default, handler: nil)
alert.addAction(alertActionOk)
self.present(alert, animated: true, completion: nil)
EZLoadingActivity.hide()
}
}
}
答案 2 :(得分：0)
func addCaseDetail() -> Void {
let parameters = ["user_id":"68","subject":txtSubject.text!,"admin_id":"21","added_by":"1","case_title":txtTitle.text!,"case_description":txtDescription.text!]
EZLoadingActivity.show("", disableUI: true)
Alamofire.upload(multipartFormData: { multipartFormData in
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
}
for i in (0..<self.choosenImageArray.count){
var imageData = Data()
let resizedImage = self.resizeImage(image: self.choosenImageArray[i] as! UIImage, targetSize: CGSize(width:500.0 ,height:500.0))
imageData = (UIImagePNGRepresentation(resizedImage )! as NSData) as Data
multipartFormData.append(imageData as Data, withName: "case_image[]",fileName: "file\(i).png", mimeType: "image/png")
}
},
to:"http://52.221.232.10/CBCA/case_details_add.php")
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
print(response.result.value!)
EZLoadingActivity.hide()
let dataDic = response.result.value! as! NSDictionary
let msg = dataDic.value(forKey: "message")
let alert = UIAlertController(title: "", message: msg as? String, preferredStyle: .alert)
let alertActionOk = UIAlertAction(title: "Ok", style: .default, handler: nil)
alert.addAction(alertActionOk)
self.present(alert, animated: true, completion: nil)
}
case .failure(let encodingError):
print(encodingError)
let msg = encodingError
let alert = UIAlertController(title: "", message: msg as? String, preferredStyle: .alert)
let alertActionOk = UIAlertAction(title: "Ok", style: .default, handler: nil)
alert.addAction(alertActionOk)
self.present(alert, animated: true, completion: nil)
EZLoadingActivity.hide()
}
}
}
答案 3 :(得分：0)
let USER_LIST_FIRMWISE_URL = "\(BASE_URL2)user_list_firm_wise.php"
func userListFirmwiseRequest(firmid:String) -> URLRequest {
let Url = URL(string: (utility?.USER_LIST_FIRMWISE_URL)!)
var request = URLRequest(url: Url!)
request.httpMethod = "POST"
request.cachePolicy = .reloadIgnoringCacheData
let paramString = "firm_id=\(firmid)"
request.httpBody = paramString.data(using: String.Encoding.utf8)
return request
}
func getuserList() -> Void {
var request = mainApp.reqRes?.userListFirmwiseRequest(firmid: firmID)
request?.httpMethod = "POST"
print("request")
EZLoadingActivity.show("", disableUI: true)
let task = URLSession.shared.dataTask(with: request!) { (data: Data?, response: URLResponse?, error: Error?) in
DispatchQueue.main.async
{
do {
guard let data = data, error == nil else {
print("Error=\(String(describing: error))")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200{
print("Status code should be 200, but is \(httpStatus.statusCode)")
print("Response String:\(String(describing: response))")
}
let jsonString = try? JSONSerialization.jsonObject(with: data, options: [])
guard let JsonObject = try? jsonString as AnyObject else{
return
}
guard let Success = try? JsonObject["success"] as! Int else{
return
}
print("Succee Resul :\(Success)")
if Success > 0{
guard let Message = try? JsonObject["message"] as Any else{
return
}
guard let JsonObjectForUser = try? Message as? AnyObject else {
return
}
}
let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? NSDictionary ?? nil
if let parseJSON = json {
let dataDic = parseJSON.value(forKey: "message") as! NSMutableArray
self.arrayUserNameList = dataDic.value(forKey: "user_name") as! [String]
self.arrayUserData = dataDic
print(self.arrayUserNameList)
self.picker.reloadAllComponents()
EZLoadingActivity.hide()
}
} catch{
print(error)
EZLoadingActivity.hide()
}
}
}
task.resume()
}
答案 4 :(得分：0)
用于通过URL会话，Swift 4.0上传多个图像
func callJSONMethod(_ methodName: String?, withFilePathArray imagePathArray: [String],imageDataArray: [Data], andParams params: [String : Any]?) {
var imagePathArray = imagePathArray
let params = params
SVProgressHUD.show()
let url = URL(string: Constant.shared.WEBSERVICE_URL)
var request: URLRequest? = nil
if let url = url {
request = URLRequest(url: url)
}
request?.httpMethod = "POST"
let boundary = "\("---------------------------14737809831466499882746641449")"
let contentType = "multipart/form-data; boundary=\(boundary)"
request?.addValue(contentType, forHTTPHeaderField: "Content-Type")
var body = Data()
var requestDict: [AnyHashable : Any] = [:]
requestDict["method_name"] = methodName
requestDict["body"] = params
let jjson = try? JSONSerialization.data(withJSONObject: requestDict, options: [])
let jsonString = String(data: jjson!, encoding: .utf8)!
print(jsonString)
if let data = "--\(boundary)\r\n".data(using: .utf8) {
body.append(data)
}
let paramsFormat = "Content-Disposition: form-data; name=\"\("json")\"\r\n\r\n"
if let data = "\(paramsFormat)".data(using: .utf8) {
body.append(data)
}
if let data = "\(jsonString)".data(using: .utf8){
body.append(data)
}
if let data = "\("\r\n")".data(using: .utf8) {
body.append(data)
}
// file
for i in 0..<imagePathArray.count {
if let data = "--\(boundary)\r\n".data(using: .utf8) {
body.append(data)
}
let filePath = imagePathArray[i] as? NSString
let fileName = filePath?.lastPathComponent
let strKeyName = "docName[]"
if let data = "Content-Disposition: attachment; name=\"\(strKeyName)\"; filename=\"\(fileName ?? "")\"\r\n".data(using: .utf8) {
body.append(data)
}
if let data = "\("Content-Type: application/octet-stream\r\n\r\n")".data(using: .utf8) {
body.append(data)
}
let data = imageDataArray[i]
body.append(data)
if let data = "\("\r\n")".data(using: .utf8) {
body.append(data)
}
}
if let data = "--\(boundary)--\r\n".data(using: .utf8) {
body.append(data)
}
let strBody = String(decoding: body, as: UTF8.self)
print("body\(strBody)")
//request?.httpBody = body
let session = URLSession.shared
request?.httpBody = body
let task = session.dataTask(with: request!, completionHandler: { data, response, error -> Void in
// print(response!)
SVProgressHUD.dismiss()
let strResponse = String(decoding: data!, as: UTF8.self)
print("body\(strResponse)")
do {
let json = try JSONSerialization.jsonObject(with: data!, options: []) as! [String: AnyObject]
print(json.description)
if methodName == Constant.shared.APPLY_OFFER_LETTER{
self.delegate?.passApplyOfferData!(data: json)
}
}catch {
print("error" + self.debugDescription)
}
})
task.resume()
}