详解Swift model 解析的两种方法
1 常规解析方法 懒加载声明一个LJNewsModel为数据的数组lazy var ljArray : [LJN
详解Swift model 解析的两种方法
1. 常规解析方法
//懒加载声明一个LJNewsModel为数据的数组 lazy var ljArray : [LJNewsModel] = [LJNewsModel]()
//MARK:-- 数据获取和解析
extension NewsViewController{
func requestNetData(){
/*
打印json数据
*/
LJDownLoadNetImage.request("GET", url: "http://c.m.163.com/nc/article/list/T1348647909107/0-20.html") { (data, respond, error) in
方法一：解析数据
let str = String(data:data!, encoding: String.Encoding.utf8)!
print(str)
let ljTempArray : NSArray = self.getDictionaryFromJSONString(jsonString: str).object(forKey: "T1348647909107") as! NSArray
for m in 0 ..< ljTempArray.count
{
let dict:NSDictionary = ljTempArray[m] as! NSDictionary
let model = LJNewsModel()
model.imageUrl = dict.object(forKey: "imgsrc") as! String
model.contentStr = dict.object(forKey: "title") as! String
let count :Int = (dict.object(forKey: "replyCount") != nil) ? dict.object(forKey: "replyCount") as! Int : 0
model.replyCount = "\(count)"
self.ljArray.add(model)
}
self.ljTablewView.reloadData()
}
}
func getDictionaryFromJSONString(jsonString:String) ->NSDictionary{
let jsonData:Data = jsonString.data(using: .utf8)!
let dict = try? JSONSerialization.jsonObject(with: jsonData, options: .mutableContainers)
if dict != nil {
return dict as! NSDictionary
}
return NSDictionary()
}
}
model
import Foundation
class LJNewsModel: NSObject {
//MARK:- 定义属性
var imgsrc: String = "" ///< store user's name, optional
var title: String = "" ///< store user's telephone number
var replyCount: Int = 0
//方法二的model
override init() {
super.init()
}
func setModel(_ imageUrl: String ,_ contentStr: String, _ replyCount:Int) {
self.imageUrl = imageUrl
self.contentStr = contentStr
self.replyCount = replyCount
}
}
2. 利用swift自有的函数进行解析-------推荐
//MARK:-- 数据获取和解析
extension NewsViewController{
func requestNetData(){
/*
打印json数据
*/
LJDownLoadNetImage.request("GET", url: "http://c.m.163.com/nc/article/list/T1348647909107/0-20.html") { (data, respond, error) in
//as? [[String :Any]] 转化为以字典为元素的数组
//as? [String :Any] 转化为字典
//1.方法一：解析数据 -- 推荐
let str = String(data:data!, encoding: String.Encoding.utf8)!
guard let allResulrDict = self.getDictionaryFromJSONString(jsonString:str) as? [String : Any] else {return}
guard let dataArray = allResulrDict["T1348647909107"] as? [[String :Any]] else {return}
//print(dataArray)
for dict in dataArray{
self.ljArray.append(LJNewsModel(dict))
}
self.ljTablewView.reloadData()
}
}
func getDictionaryFromJSONString(jsonString:String) ->NSDictionary{
let jsonData:Data = jsonString.data(using: .utf8)!
let dict = try? JSONSerialization.jsonObject(with: jsonData, options: .mutableContainers)
if dict != nil {
return dict as! NSDictionary
}
return NSDictionary()
}
}
import Foundation
class LJNewsModel: NSObject {
//MARK:- 定义属性
var imgsrc: String = "" ///< store user's name, optional
var title: String = "" ///< store user's telephone number
var replyCount: Int = 0
//方法一的model
//MARK:- 自定义构造函数
init(_ dict : [String: Any]){
super.init()
setValuesForKeys(dict)
}
override func setValue(_ value: Any?, forUndefinedKey key: String) {
}
}
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