网络请求框架Alamofire
Swift 2.3 Alamofire3.0版本支持 iOS 8 Swift 3 Alamofire4.0以上版本支持 iOS 9及以上系统
json数据：
{ data = { cate = ( { grade = 1; id = 1000; name = "\U89e3\U578b\U5e73\U7ec6"; parId = ""; picUrl = "http://fpoimg.com/300x600?&bg_color=9ef279&text_color=f279c1&text=Gary"; subList = ( { grade = 2; id = 10000; name = "\U652f\U754c\U7a0b\U5176\U610f\U53c8"; parId = 1; picUrl = "http://fpoimg.com/336x280?&bg_color=79e5f2&text_color=f2db79&text=Jennifer"; }, { grade = 2; id = 10001; name = "\U519c\U8d77\U8bbe\U8c61"; parId = 2; picUrl = "http://fpoimg.com/250x250?&bg_color=b879f2&text_color=79f295&text=Frank"; }, { grade = 2; id = 10002; name = "\U5b66\U6548\U90fd\U6700\U51b3\U957f"; parId = 3; picUrl = "http://fpoimg.com/120x90?&bg_color=f27980&text_color=79a3f2&text=Nancy"; }, { grade = 2; id = 10003; name = "\U65cf\U4e00\U822c\U91c7\U786e"; parId = 4; picUrl = "http://fpoimg.com/125x125?&bg_color=c7f279&text_color=f279ea&text=Cynthia"; }, { grade = 2; id = 10004; name = "\U6df1\U5f97\U519c\U8fd9\U90e8\U7406"; parId = 5; picUrl = "http://fpoimg.com/120x600?&bg_color=79f2d6&text_color=f2b379&text=Anthony"; } ); }, { grade = 1; id = 1001; name = "\U8d70\U5f20\U5171\U59d4"; parId = ""; picUrl = "http://fpoimg.com/720x300?&bg_color=8f79f2&text_color=85f279&text=Robert"; subList = ( { grade = 2; id = 10005; name = "\U9053\U597d\U5bb6\U901a\U6bdb\U4e5d"; parId = 6; picUrl = "http://fpoimg.com/240x400?&bg_color=f279a8&text_color=79ccf2&text=Mark"; }, { grade = 2; id = 10006; name = "\U738b\U8bc6\U4f8b\U91cc\U8054\U5df2"; parId = 7; picUrl = "http://fpoimg.com/88x31?&bg_color=eff279&text_color=d179f2&text=George"; }, { grade = 2; id = 10007; name = "\U91cf\U738b\U5468\U7ba1\U672f"; parId = 8; picUrl = "http://fpoimg.com/120x240?&bg_color=79f2ae&text_color=f28a79&text=Matthew"; }, { grade = 2; id = 10008; name = "\U4e1c\U529b\U957f\U56fd\U8d70\U88ab"; parId = 9; picUrl = "http://fpoimg.com/234x60?&bg_color=798af2&text_color=aef279&text=Mary"; }, { grade = 2; id = 10009; name = "\U6280\U97f3\U4e8b\U6e29\U65f6"; parId = 10; picUrl = "http://fpoimg.com/120x240?&bg_color=f279d1&text_color=79f2ef&text=Brian"; } ); }, { grade = 1; id = 1002; name = "\U65b9\U5b66\U8fd1\U7ed9"; parId = ""; picUrl = "http://fpoimg.com/728x90?&bg_color=f2cc79&text_color=a979f2&text=Richard"; subList = ( { grade = 2; id = 10010; name = "\U7b97\U6e29\U987b\U9762"; parId = 11; picUrl = "http://fpoimg.com/180x150?&bg_color=79f285&text_color=f2798f&text=John"; }, { grade = 2; id = 10011; name = "\U8bb8\U62c9\U8d44\U4e13\U6708\U5f53\U533a"; parId = 12; picUrl = "http://fpoimg.com/180x150?&bg_color=79b3f2&text_color=d6f279&text=Lisa"; }, { grade = 2; id = 10012; name = "\U6cbb\U5728\U4fe1\U773c\U65ad"; parId = 13; picUrl = "http://fpoimg.com/728x90?&bg_color=ea79f2&text_color=79f2c7&text=Jeffrey"; }, { grade = 2; id = 10013; name = "\U5efa\U653f\U7ed3\U652f\U7acb\U5f80\U52a8"; parId = 14; picUrl = "http://fpoimg.com/250x250?&bg_color=f2a379&text_color=8079f2&text=Edward"; }, { grade = 2; id = 10014; name = "\U53d1\U5c42\U5907\U4fe1\U6cbb\U91cd"; parId = 15; picUrl = "http://fpoimg.com/120x90?&bg_color=95f279&text_color=f279b8&text=Dorothy"; } ); } ); pic = ( { link = "http://iuvpwyufd.sc/auyydlnn"; picUrl = "http://fpoimg.com/250x250?&bg_color=79dbf2&text_color=f2e579&text=Thomas"; price = "759.4"; prodId = 52037; storeId = 72788; text1 = "\U7ec7\U73b0\U79d1\U6ca1\U9a8c\U89c1\U79f0"; text2 = "\U5411\U8d28\U53c2\U770b\U5236\U7c7b\U7c73"; type = 2; }, { link = "http://gnba.ng/jwiv"; picUrl = "http://fpoimg.com/468x60?&bg_color=c279f2&text_color=79f29e&text=Anthony"; price = "219.1"; prodId = 52038; storeId = 72789; text1 = "\U9a8c\U51e0\U653e\U8d8a\U518d"; text2 = "\U8272\U9769\U53eb\U8981\U7a7a"; type = 1; }, { link = "http://gjf.eh/xdx"; picUrl = "http://fpoimg.com/240x400?&bg_color=f27b79&text_color=799af2&text=Ronald"; price = "182.3"; prodId = 52039; storeId = 72790; text1 = "\U8ba1\U503c\U5185\U65e0\U4e5f\U79d1\U67e5"; text2 = "\U4e2d\U5468\U5fc3\U4e3b\U51e0\U79cd"; type = 1; } ); }; msg = "\U6210\U529f"; ret = 1;}复制代码 一、系统自带的KVC
模型：
import UIKitclass BaseModel: NSObject { init(dict: [String: AnyObject]) { super.init() //setValuesForKeys是KVC方法 //KVC的方法又是OC的方法，在运行时给对象发送消息，这点要求对象已经实例化完成。super.init()就是用来保证对象初始化完成。 setValuesForKeys(dict) } //重写父类的方法 override func setValue(_ value: Any?, forUndefinedKey key: String) { //没有调用super，将父类的代码完全覆盖，不会崩溃 }}class TypesSATMD: BaseModel { var msg: String = "" var ret: Int = 0 var data: [String: NSObject]? { didSet { guard let tempData = data else { return } typesSATData = TypesSATData(dict: tempData) } } var typesSATData: TypesSATData?}class TypesSATData: BaseModel { var cate: [[String: NSObject]]? { didSet { guard let tempCate_list = cate else { return } for dict in tempCate_list { cates.append(TypesSATCate(dict: dict)) } } } var pic: [[String: NSObject]]? { didSet { guard let banner_list = pic else { return } for dict in banner_list { pics.append(TypesSATPic(dict: dict)) } } } var cates: [TypesSATCate] = [TypesSATCate]() var pics:[TypesSATPic] = [TypesSATPic]() // 轮播图数组 }class TypesSATCate: BaseModel { var grade: Int = 0 var id: NSNumber = NSNumber() var name: String = "" var parId: String = "" var picUrl: String = "" var subList: [[String: NSObject]]? { didSet { guard let tempSubList = subList else { return } for dict in tempSubList { subLists.append(TypesSATSubList(dict: dict)) } } } var subLists: [TypesSATSubList] = [TypesSATSubList]()}class TypesSATPic: BaseModel { var link: String = "" var picUrl: String = "" var price: Double = 0 var prodId: NSNumber = NSNumber() var storeId: NSNumber = NSNumber() var text1: String = "" var text2: String = "" var type: Int = 0 }class TypesSATSubList: BaseModel { var grade: Int = 0 var id: NSNumber = NSNumber() var name: String = "" var parId: NSNumber = NSNumber() var picUrl: String = ""}复制代码 使用 eg：
let type: TypesSATMD = TypesSATMD(dict: (result as? [String : NSObject])!) print(type.typesSATData?.pics.first?.picUrl ?? "")复制代码
二、SwiftyJSON
源码：https://github.com/SwiftyJSON/SwiftyJSON.git 初始化：
let json = JSON(data: dataFromNetworking)
let json = JSON(jsonobject)
if let dataFromString = jsonString.data(using: .utf8, allowLossyConversion: false) { let json = JSON(data: dataFromString) }
一些常用的方法：
//从 JSON数组 中获取一个 doublelet name = json[0].double//用来显示 JSON 中是否有指定的值if json["name"].exist()复制代码
三、ObjectMapper
源码：https://github.com/Hearst-DD/ObjectMapper.git 导入头文件：import ObjectMapper 模型继承：Mappable 实现两个协议方法：
required init?(map: Map){ } func mapping(map: Map) { }复制代码 模型：
import UIKitimport ObjectMapperclass TypeMD: Mappable { var ret: Int = 0 var data: TypeData? var msg: String = "" required init?(map: Map){ } func mapping(map: Map) { ret <- map["ret"] data <- map["data"] msg <- map["msg"] } }class TypeData: Mappable { var pic: [TypePic] = [TypePic]() var cate: [TypeCate] = [TypeCate]() required init?(map: Map){ } func mapping(map: Map) { pic <- map["pic"] cate <- map["cate"] }}class TypePic: Mappable { var picUrl: String = "" var prodId: Int = 0 var text1: String = "" var price: Int = 0 var text2: String = "" var storeId: Int = 0 var link: String = "" var type: Int = 0 required init?(map: Map){ } func mapping(map: Map) { picUrl <- map["picUrl"] }}class TypeCate: Mappable { var picUrl: String = "" var id: Int = 0 var subList: [TypeSublist] = [TypeSublist]() var grade: Int = 0 var name: String = "" var parId: String = "" required init?(map: Map){ } func mapping(map: Map) { name <- map["name"] }}class TypeSublist: Mappable { var parId: Int = 0 var id: Int = 0 var grade: Int = 0 var name: String = "" var picUrl: String = "" required init?(map: Map){ } func mapping(map: Map) { name <- map["name"] }}复制代码 使用eg:
let test1 = Mapper().map(JSONObject: result) print(test1?.data?.cate.first?.name ?? "")复制代码