使用Alamofire在Swift 3中进行Json解析

本文介绍了使用Alamofire在Swift 3中进行Json解析的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在快速工作3.我是ios的新手.我正在尝试解析json数据，例如

I am working in swift 3. I am new to ios. I am trying to parse the json data like

My jsonVlaue is : { data = ( { Password = "@1234"; UserName = "<null>"; "___class" = OrderTable; "__meta" = "{\"relationRemovalIds\":{},\"selectedProperties\":[\"UserName\",\"created\",\"name\",\"___class\",\"ownerId\",\"updated\",\"objectId\",\"Password\"],\"relatedObjects\":{}}"; created = 1483525854000; name = TestMan; objectId = "4316DEBA-78C1-C7BD-FFBC-3CB77D747F00"; ownerId = "<null>"; updated = "<null>"; }, { Password = 123; UserName = "<null>"; "___class" = OrderTable; "__meta" = "{\"relationRemovalIds\":{},\"selectedProperties\":[\"UserName\",\"created\",\"name\",\"___class\",\"ownerId\",\"updated\",\"objectId\",\"Password\"],\"relatedObjects\":{}}"; created = 1483516868000; name = tommy; objectId = "29155114-C00B-5E1C-FF6F-7C828C635200"; ownerId = "<null>"; updated = "<null>"; }.......

我只想要键值:名称"，并且想要在数组中添加该值.

I want only the keyvalue:"name" and that value I want to add in an Array.

我试图这样做，但是我的应用程序崩溃了.我的代码如下:

I tried to do like that but my app is getting Crash. My code i slike as follows

func getLoginDetails() { //api.backendless/<version>/data/<table-name>/properties Alamofire.request( HeadersClass.api.domainName + "OrderTable", method: .get, parameters: nil, encoding: JSONEncoding.default, headers: HeadersClass.allHeaders.headers).responseJSON { response in //debugPrint(response) if let jsonDict = response.result.value as? NSDictionary { print("My jsonVlaue is : \(jsonDict)") let arrayPracticeData: NSArray = jsonDict.value(forKey: "name") as! NSArray print(arrayPracticeData) } } }

任何人都可以告诉我如何解决此问题.提前致谢.

Can anyone please tell me how to solve this. Thanks in Advance.

推荐答案

首先，在Swift中使用Swift的本机Array和Dictionary代替NSDictionary和NSArray.

First of all in Swift use Swift's native Array and Dictionary instead of NSDictionary and NSArray.

现在要获取名称，您需要从JSON响应Dictionary中获取Data数组.所以尝试这样的事情.

Now to get name you need to get Data array from your JSON response Dictionary. So try something like this.

Alamofire.request( HeadersClass.api.domainName + "OrderTable", method: .get, parameters: nil, encoding: JSONEncoding.default, headers: HeadersClass.allHeaders.headers).responseJSON { response in //debugPrint(response) if let jsonDict = response.result.value as? [String:Any], let dataArray = jsonDict["data"] as? [[String:Any]] { let nameArray = dataArray.flatMap { $0["name"] as? String } print(nameArray) } }

输出

["TestMan", "tommy", ...]