使用Swift将数据发布到服务器
问题描述：
在swift中我一直面对这个问题，我不知道我在这里开始的错误是我的viewcontroller.swift
In swift i have been facing this issue since days and i dont know what error i am commencing here is my viewcontroller.swift
import UIKit
import Foundation
var otp=0
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate,UITextFieldDelegate
,HomeModelProtocol{
@IBOutlet weak var nameField: UITextField!
@IBOutlet weak var dobField: UITextField!
@IBOutlet weak var genderField: UITextField!
@IBOutlet weak var phoneField: UITextField!
@IBOutlet weak var emailField: UITextField!
//Properties
var feedItems: NSArray = NSArray()
var selectedLocation : LocationModel = LocationModel()
@IBOutlet weak var listTableView: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
//set delegates and initialize homeModel
//self.listTableView.delegate = self
//self.listTableView.dataSource = self
let homeModel = HomeModel()
homeModel.delegate = self as HomeModelProtocol
homeModel.downloadItems()
/* do
{
self.dobField.delegate = self
}
catch {
print("empty")
}
do
{
self.emailField.delegate = self
}
catch{
print("Empty")
}
do{ self.nameField.delegate = self
}
catch{
print("Empty")
}
do{
self.genderField.delegate = self
}
catch{
print("Empty")
}
do
{
self.phoneField.delegate = self
}
catch{
print("Empty")
}*/
}
func itemsDownloaded(items: NSArray)
{
feedItems = items
//self.listTableView.reloadData()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
// Return the number of feed items
return feedItems.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
// Retrieve cell
let cellIdentifier: String = "BasicCell"
let myCell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)!
// Get the location to be shown
let item: LocationModel = feedItems[indexPath.row] as! LocationModel
// Get references to labels of cell
myCell.textLabel!.text = item.countryname
return myCell
}
@IBAction func onPostTapped2(_ sender: Any)
{
/*let parameters = ["name": "Lakshmi ILLe", "dob": "1234567890","gender": "Male","email": "Laksmhi@gmail.com","password":"iamille","contact": "1234567890"]*/
/*let parameters = "name=ALoke Nath"
guard let url = URL(string: "http://192.168.85.115/assignment5/public/dataInsert") else { return }
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
guard let httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: []) else { return }
request.httpBody = httpBody
let session = URLSession.shared
session.dataTask(with: request) { (data, response, error) in
if let response = response {
print(response)
}
if let data = data {
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
print(json)
} catch {
print(error)
}
}
}.resume()
*/
let name = nameField.text!
let dob = dobField.text!
let gender = genderField.text!
let phone = phoneField.text!
let email = emailField.text!
let password=phoneField.text!
let contact = phoneField.text!
let countryId=2
let data = Data()
let headers = [
"content-type": "application/x-www-form-urlencoded",
"cache-control": "no-cache"
]
print(headers)
let postData = NSMutableData(data: ("name="+String(name)).data(using: String.Encoding.utf8)!)
postData.append(("&dob="+String(dob)).data(using: String.Encoding.utf8)!)
postData.append(("&gender="+String(gender)).data(using: String.Encoding.utf8)!)
postData.append(("&email="+String(email)).data(using: String.Encoding.utf8)!)
postData.append(("&password="+String(phone)).data(using: String.Encoding.utf8)!)
postData.append(("&contact="+String(phone)).data(using: String.Encoding.utf8)!)
postData.append(("&countryId=2").data(using: String.Encoding.utf8)!)
print(postData)
let requestnew = NSMutableURLRequest(url: NSURL(string: "http://192.168.85.115/assignment5/public/dataInsert")! as URL,
cachePolicy: .useProtocolCachePolicy,
timeoutInterval: 10.0)
requestnew.httpMethod = "POST"
requestnew.allHTTPHeaderFields = headers
requestnew.httpBody = postData as Data
print(requestnew.httpBody!)
let sessionnew = URLSession.shared
let dataTasknew = sessionnew.dataTask(with: requestnew as URLRequest, completionHandler: { (data, responsenew, errornew) -> Void in
if (errornew != nil) {
print(errornew!)
} else {
let httpResponsenew = responsenew as? HTTPURLResponse
print(httpResponsenew!)
//print(data!)
}
})
let A: UInt32 = 100000
let B: UInt32 = 999999
otp = Int(arc4random_uniform(B - A + 1) + A)
print(otp)
dataTasknew.resume()
}
@IBOutlet weak var otpField: UITextField!
@IBAction func Otptapped(_ sender: Any) {
print(otp)
let otp2=Int(otpField.text!)
print(otp2!)
if otp2==otp{
print("Verified")
}
else{
print("Recheck otp")
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
self.view.endEditing(true)
}
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return(true)
}
}
尝试将数据提交到位于URL的服务器时，我不断得到这个错误对我来说是胡言乱语
While trying to submit the data to server located at the URL i continuously get this errors which is gibberish to me
第一部分我打印了标题和附加的postdata
但最后当响应部分给了我laravel_session的东西不是对我来说很清楚
the first part i have printed the header and the appended postdata but at last when the response part gives me the laravel_session thing which is not clear to me
//这个标题
["cache-control": "no-cache", "content-type": "application/x-www-form-urlencoded"]
//这是postdata
//This is the postdata
<6e616d65 3d616263 26646f62 3d343537 38373738 37393626 67656e64 65723d4d 616c6526 656d6169 6c3d7177 65406665 642e636f 6d267061 7373776f 72643d37 38353437 34313132 3326636f 6e746163 743d3738 35343734 31313233 26636f75 6e747279 49643d32>
104 bytes
//这是otp不需要或发送
104 bytes //this is otp not required or sent
855494
//这是回复
<NSHTTPURLResponse: 0x604000231620> { URL: http://192.168.85.115/assignment5/public/dataInsert } { status code: 400, headers {
"Cache-Control" = "no-cache";
Connection = close;
"Content-Type" = "application/json";
Date = "Mon, 02 Apr 2018 11:48:01 GMT";
Server = "Apache/2.4.29 (Win32) OpenSSL/1.0.2n PHP/5.6.33";
"Set-Cookie" = "laravel_session=eyJpdiI6IldEdFFscW1WcTRDcGdTZDBHcUxuSlE9PSIsInZhbHVlIjoiVDBwRkl4b2tISm5CbEdLQkJOdTZOYytzMFRIVWZRK1QyVXRRWkp1OVhuZkJCNXQxODlwTkp3S1lzNmpjaFc0QjlHT2R1dkFVZXdCd1B1MWFINDVmeHc9PSIsIm1hYyI6IjI5OTE3MWNjMzJjYjNiZDcxZTE1Mjc0OGE5OGY5ZGZhMjQwNTI2NmVlOWEwNTA4NDg2MTk2MjM5YjBkNjdjN2QifQ%3D%3D; expires=Mon, 02-Apr-2018 13:48:01 GMT; Max-Age=7200; path=/; httponly";
"Transfer-Encoding" = Identity;
"X-Powered-By" = "PHP/5.6.33";
} }
13819 bytes
Data downloaded
13819 bytes
Xcode：9.0
Swift：4.0
Xcode :9.0 Swift : 4.0
请帮助！
答
func ServiceCall(url: String, Parameters: String, Method: String, Completion: @escaping(_ dictionary: Any?, _ error: Error?)-> Void) {
DispatchQueue.global(qos: .background).async {
var request = URLRequest(url: URL(string: url)!) // add your url here
request.httpMethod = Method // Method GET/POST
let param = Parameters.data(using: .utf8) // Parameters to pass to server
request.httpBody = param
print("task created")
let task = URLSession.shared.dataTask(with: request){ data, response, error in
guard let _ = data, error == nil else{
print("Error : \(String(describing: error))")
Completion(nil,error)
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(String(describing: response))")
// make error here and then
Completion(nil, error)
return
}
DispatchQueue.main.async {
do{
let jsonReponse = try JSONSerialization.jsonObject(with: data!, options: [])
Completion(jsonReponse,nil)
}
catch{
Completion(nil, error)
}
}
}
task.resume()
}
}
通过调用上述函数，您将在完成处理程序中获得响应和错误（如果有）。
By calling above function you will get response and error(if any) in completion handler.