我创建了 5 个类，其中包括 ProfileHomeModel、ProfileLocationModel、ProfileRequestManager、ProfileTableUserViewController 和 ProfileTableViewCell。我的目标是正确解析 json 并显示数据。我在请求管理器类中遇到了问题。我对 swift 完全陌生。我想在不使用 swiftyJSON 和 Alamofire 的情况下做到这一点。

import Foundation
class ProfileRequestManager{


    let urlPath = "*********"

    let url = NSURL(string: urlPath)
    let data = NSData(contentsOfURL: url!)

    do {
        let jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options: .AllowFragments) as? NSDictionary

        print(jsonData)
        let results = jsonData!.objectForKey("strengths") as? [NSDictionary] ?? []

    for result in results {
        print(result)
    }


    }
    catch {
        print("Something went wrong while parsing json data fetched from the API")
    }


}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {


    if indexPath.row == 0 {

        let cell = tableView.dequeueReusableCellWithIdentifier("ProfileCell", forIndexPath: indexPath) as! ProfileUserTableViewCell
        cell.firstName?.text = firstName
        cell.lastName?.text = lastName
        cell.title?.text = title

        return cell

}
}

override func viewDidLoad() {
    super.viewDidLoad()
    tableView.reloadData()
    //retrieving json from server

    let requestURL: NSURL = NSURL(string: "https:******************")!

    //Your baseURL
    let urlRequest: NSMutableURLRequest = NSMutableURLRequest(URL: requestURL)
    let session = NSURLSession.sharedSession()
    let task = session.dataTaskWithRequest(urlRequest) {
        (data, response, error) -> Void in

        let httpResponse = response as! NSHTTPURLResponse
        let statusCode = httpResponse.statusCode

        if (statusCode == 200) {
            print("Everyone is fine")

            do {
                let JSON = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions(rawValue: 0))
                guard let JSONDictionary :NSDictionary = JSON as? NSDictionary else {
                    print("Not a Dictionary")

                    return
                }
                //  print("JSONDictionary! \(JSONDictionary)")

                if let profile = JSONDictionary["profile"] as? NSDictionary {
                    print(profile)
                    //This is where we should begin parsing json into whatever you want to
                    let firstName = profile["firstName"] as? String
                    let lastName = profile["lastName"] as? String
                    let title = profile["title"] as? String

                    print(firstName!, lastName, title!)

                    //                        let settings = profile["settings"] as? NSDictionary
                    //
                    //                        let enableSMS = settings!.valueForKey("enable_sms") as? String
                    //                        print(enableSMS!)

                    //to parse commentTotals content from api
                    let commentTotals = profile["commentTotals"] as? NSArray
                    for eachItem in commentTotals! {
                        let total = eachItem.valueForKey("total") as? String
                        let id = eachItem.valueForKey("id") as? String
                        print(total!,id!)

                    }

                    //to parse strength contents from api
                    let strengths = profile["strengths"] as? NSArray
                    for eachItem in strengths! {
                        let color = eachItem.valueForKey("color") as? String
                        let description = eachItem.valueForKey("description")
                        let id = eachItem.valueForKey("id")
                        let name = eachItem.valueForKey("name")
                        print(name!, description!, color!, id!)
                    }
                }
            }
            catch let JSONError as NSError {
                print("\(JSONError)")
            }
        }
    }

    task.resume()


    // Uncomment the following line to preserve selection between presentations
    // self.clearsSelectionOnViewWillAppear = false

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

// MARK: - Table view data source

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Incomplete implementation, return the number of sections
    return 1
}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return 4
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    if indexPath.row == 0 {

    let cell = tableView.dequeueReusableCellWithIdentifier("ProfileCell", forIndexPath: indexPath) as! ProfileUserTableViewCell

        cell.firstName?.text = [indexPath.row].firstName
        cell.lastName?.text =  [indexPath.row].lastName
        cell.title?.text =  [indexPath.row].title



        return cell

    }

    if indexPath.row == 1 {

        let cell = tableView.dequeueReusableCellWithIdentifier("ProfileCell2", forIndexPath: indexPath) as! ProfileUserTableViewCell

        cell.score?.text = [indexPath.row].score
        cell.received?.text =  [indexPath.row].received
        cell.given?.text =  [indexPath.row].given
        return cell

    }
    if indexPath.row == 2 {

        let cell = tableView.dequeueReusableCellWithIdentifier("ProfileCell3", forIndexPath: indexPath) as! ProfileUserTableViewCell
        cell.coreValueComments1?.text = [indexPath.row].total
        cell.coreValueComments2?.text = [indexPath.row].total
        cell.coreValueComments3?.text = [indexPath.row].total
        cell.coreValueComments4?.text = [indexPath.row].total


        return cell

    }

     else {

        let cell = tableView.dequeueReusableCellWithIdentifier("ProfileCell4", forIndexPath: indexPath) as! ProfileUserTableViewCell
        cell.strength1?.text = [indexPath.row].name
        cell.strength2?.text = [indexPath.row].name
        cell.strength3?.text = [indexPath.row].name
        cell.strength4?.text = [indexPath.row].name



        return cell

    }

}



}

最佳答案

这是您可以执行哪些操作来序列化 json 的小尝试。我在 viewDidLoad() 中实现了以下代码阻止在 xcode 控制台中成功打印 json 数据。

 let requestURL: NSURL = NSURL(string: "https://*******************")!
    //Your baseURL 
    let urlRequest: NSMutableURLRequest = NSMutableURLRequest(URL: requestURL)
    let session = NSURLSession.sharedSession()
    let task = session.dataTaskWithRequest(urlRequest) {
        (data, response, error) -> Void in

        let httpResponse = response as! NSHTTPURLResponse
        let statusCode = httpResponse.statusCode

        if (statusCode == 200) {
            print("Everyone is fine")

            do {
                let JSON = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions(rawValue: 0))
                guard let JSONDictionary :NSDictionary = JSON as? NSDictionary else {
                    print("Not a Dictionary")

                    return
                }
              //  print("JSONDictionary! \(JSONDictionary)")

                if let profile = JSONDictionary["profile"] as? NSDictionary {
                    print(profile)


                    //This is where we should begin parsing json into whatever you want to

             let biography = profile["biography"] as? String
                    let designations = profile["designations"] as? String
                    let dob = profile["dob"] as? String
                    let doh = profile["doh"] as? String
                    let email = profile["email"] as? String
                    // do the same for firstname, goals, interests, lastname, location, mentors, phone, skills, speciality

                    print(biography!, designations, dob!)

                    let settings = profile["settings"] as? NSDictionary

                        let enableSMS = settings!.valueForKey("enable_sms") as? String
                        print(enableSMS!)

                    let strengths = profile["strengths"] as? NSArray
                    for eachItem in strengths! {
                        let color = eachItem.valueForKey("color") as? String
                        let description = eachItem.valueForKey("description")
                        let id = eachItem.valueForKey("id")
                        let name = eachItem.valueForKey("name")
                        print(name!, description!, color!, id!)
                    }




                }
            }
            catch let JSONError as NSError {
                print("\(JSONError)")
            }



        }
    }

    task.resume()

关于ios - 如何在不使用框架的情况下快速创建 RequestManager 类，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37827080/