Ios Swift 3.0与web服务

试图将我们的web服务读入UITableViewController，它只将第一条记录返回到模拟器。因此，希望有人能够看到代码，并引导我走上正确的道路。最终目标是将其放入UITableViewCell中，这样我就可以很好地格式化，但只需要查看所有记录

下面是将返回的部分json文件的视图

{
"Count":11518,
"Result":[
    {
     "cuName": "#1",
     "charter_Num": 
     "16328","City": 
     "Jonesboro",
     "State_id": "GA",
     "cuName_location": "#1 - Jonesboro, GA"
     },
     {
     "cuName": "@lantec Financial",
     "charter_Num": "7965",
     "City": "Virginia Beach",
     "State_id": "VA",
     "cuName_location": "@lantec Financial - Virginia Beach, VA"
     }]
}

下面是读取json web服务并尝试解析并放入表中的代码

func get_data_from_url(_ link:String)
   {
    let url:URL = URL(string: link)!
    let session = URLSession.shared

    let request = NSMutableURLRequest(url: url)
    request.httpMethod = "GET"
    request.cachePolicy = NSURLRequest.CachePolicy.reloadIgnoringCacheData


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

        guard let _:Data = data, let _:URLResponse = response  , error == nil else {
             return
        }


        self.extract_json(data!)
    })

    task.resume()
}


func extract_json(_ data: Data)
{
    let json: Any?

    do
    {
        json = try JSONSerialization.jsonObject(with: data, options: [])
    }
    catch
    {
        return
    }

    //Commented out the following lines because it doesn't return anything when using the modified code that works
    //
    //        guard let data_list = json as? NSArray else
    //        {
    //            return
    //        }

    //This code works but only gives me the 1st record back
    if let cu_list = try? json as? [String:Any],
        let result = cu_list?["Result"] as? [[String:Any]],
        let charter_num = result[0]["charter_Num"] as? String,
        let value = result[0]["cuName_location"] as? String, result.count > 0 {
        TableData.append(value + " (" + charter_num + ")")
    } else {
        print("bad json - do some recovery")
    }

    DispatchQueue.main.async(execute: {self.do_table_refresh()})

}

---

您引用的是

result

对象中的第0个索引元素，它将只返回JSON数据中的第一条记录。您需要运行循环并将数据附加到数组中，该数组用于填充

UITableView

中的数据建议：（1）不要在Swift中使用

snake\u case

。相反，您应该使用较低的

camelCase

。（2） 如果可以轻松推断类型，则无需指定类型。（3） 花括号应该与语句或声明内联，而不是放在新行上。（4）

强制展开一个可选文件。这应该明智地使用，因为如果您试图强制展开具有
nil
值的可选项，您的应用程序将在运行时崩溃。@EricAya，谢谢您提供的信息。我是一名Swift开发新手，所以我试图做些事情，并找到了那个网站。@RyanH。我可以对我的代码进行改进，以使其更好地阅读，并有希望获得更好的响应。感谢you@EricAya关于如何将json文件读入UITableViewController的教程，你有什么建议吗？Gurdev，你说的有道理，我不知道需要做哪些更改才能使其正常工作。你能提供一个如何修复它的编码示例吗？我正处于尝试快速编程的开始阶段。如果让result=cu_list？[“result”]as？[[String:Any]{var i=0；for（i=0；i）
 func GetCategoryData(){
    //get_high_score.php?from=1472409001482&number=10&to=1493657787867
    let checklaun = UserDefaults.standard.integer(forKey: "Language")
     if checklaun == 1 {

        EZLoadingActivity.show("Loading...", disableUI: false)

    }else{
       EZLoadingActivity.show("جار التحميل...", disableUI: false)

    }


    DispatchQueue.global(qos: .background).async {

        let myUrl = URL(string: GlobleUrl.BASEURL + "advertise_list.php");
        var request = URLRequest(url:myUrl!)
        request.httpMethod = "GET"

        // let fromvalue = 1472409001482
        // let numbervalue = 10
        // let tovalue = 1493657787867
        let postString = ""//"from=" + fromvalue + "&" + "number=" + numbervalue + "&" + "to=" + tovalue

        request.httpBody = postString.data(using: String.Encoding.utf8);
        let task = URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in

            if error != nil
            {
                EZLoadingActivity.hide(false, animated: true)
                print("error=\(error)")
                let checklaun = UserDefaults.standard.integer(forKey: "Language")
                var titlemsga : String = String()
                var okmsg : String = String()
                if checklaun == 1 {
                    titlemsga = "Something going wrong"
                    okmsg = "Ok"
                }else{
                    titlemsga = "حدث خطأ ما"
                    okmsg = "حسنا"
                }

                let alert = UIAlertController(title: "", message: titlemsga, preferredStyle: UIAlertControllerStyle.alert)
                alert.addAction(UIAlertAction(title: okmsg, style: UIAlertActionStyle.default, handler: nil))
                self.present(alert, animated: true, completion: nil)

                return
            }


            print("response = \(response)")


            do {

                let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary

                DispatchQueue.main.async {

                    if let parseJSON = json {

                        print(parseJSON)
                        let status =   parseJSON["status"] as! Bool

                        if status == true{

                            EZLoadingActivity.hide(true, animated: false)

                            self.categoryDataArray =  parseJSON["data"] as! NSMutableArray
                            print("\(self.categoryDataArray)")

                            self.filterarray = parseJSON["fixed_cat"] as! NSMutableArray

                            let teamp = self.categoryDataArray .value(forKey: "main_image") as AnyObject
                            print("\(teamp)")
                            self.categoryImageArray.setArray(teamp as! [Any])
                            print("\( self.categoryImageArray)")

                            //  let teamp = self.data .value(forKey: "name") as AnyObject
                            // print("\(teamp)")
                            //  self.categoryNameArray.setArray(teamp as! [Any])


                            self.allcategoryTableViewCell.reloadData()
                            self.allcategoryfilterlistview.reloadData()
                            //   self.tblscoreList.reloadData()

                        }else{
                            EZLoadingActivity.hide(false, animated: true)
                        }

                    }
                }
            }
            catch {
                EZLoadingActivity.hide(false, animated: true)
                let checklaun = UserDefaults.standard.integer(forKey: "Language")
                var titlemsga : String = String()
                var okmsg : String = String()
                if checklaun == 1 {
                    titlemsga = "Something going wrong"
                    okmsg = "Ok"
                }else{
                    titlemsga = "حدث خطأ ما"
                    okmsg = "حسنا"
                }

                let alert = UIAlertController(title: "", message: titlemsga, preferredStyle:     UIAlertControllerStyle.alert)
                alert.addAction(UIAlertAction(title: okmsg, style: UIAlertActionStyle.default, handler: nil))
                self.present(alert, animated: true, completion: nil)
                print(error)
            }
        }
        task.resume()
    }
}