HandyJSON第三方库的日常使用与错误记录

2、基本数据类型

class BasicTypesTwo: HandyJSON {    var bool: Bool = true    var intOptional: Int?    var doubleImplicitlyUnwrapped: Double!    var anyObjectOptional: Any?         var arrayInt: Array<Int> = []    var arrayStringOptional: Array<String>?    var setInt: Set<Int>?    var dictAnyObject: Dictionary<String, Any> = [:]         var nsNumber = 2    var nsString: NSString?         required init() {}} let object = BasicTypesTwo()        object.intOptional = 1        object.doubleImplicitlyUnwrapped = 1.1        object.anyObjectOptional = "StringValue"        object.arrayInt = [1, 2]        object.arrayStringOptional = ["a", "b"]        object.setInt = [1, 2]        object.dictAnyObject = ["key1": 1, "key2": "stringValue"]        object.nsNumber = 2        object.nsString = "nsStringValue"                 let jsonString = object.toJSONString()!                 if let object = BasicTypesTwo.deserialize(from: jsonString) {            print(object.arrayStringOptional!)            print(object.dictAnyObject)            //....        }

3、指定解析路径

　　HandyJSON支持指定从哪个具体路径开始解析，反序列化到Model。

class Cat: HandyJSON {    var id: Int64!    var name: String!         required init() {}} let json = "{\"code\":200,\"msg\":\"success\",\"data\":{\"cat\":{\"id\":12345,\"name\":\"Kitty\"}}}"        if let cat = Cat.deserialize(from: json, designatedPath: "data.cat") {            print(cat.name!)            print(cat.id!)        }

4、组合对象

　　注意，如果Model的属性不是基本类型或集合类型，那么它必须是一个服从HandyJSON协议的类型。

　　如果是泛型集合类型，那么要求泛型实参是基本类型或者服从HandyJSON协议的类型。

class Component: HandyJSON {    var aInt: Int?    var aString: String?         required init() {}}class Composition: HandyJSON {    var aInt: Int?    var comp1: Component?    var comp2: Component?         required init() {}} let jsonString = "{\"num\":12345,\"comp1\":{\"aInt\":1,\"aString\":\"aaaaa\"},\"comp2\":{\"aInt\":2,\"aString\":\"bbbbb\"}}"                 if let composition = Composition.deserialize(from: jsonString) {            print(composition.comp1?.aString! as Any)            print(composition.comp2?.aInt! as Any)        }

5、继承

　　如果子类要支持反序列化，那么要求父类也服从HandyJSON协议。

let jsonString = "{\"id\":12345,\"color\":\"black\",\"name\":\"cat\"}"                 if let cat = Cat.deserialize(from: jsonString) {            print(cat)        }

6、JSON数组

　　如果JSON的第一层表达的是数组，可以转化它到一个Model数组。

let jsonArrayString: String? = "[{\"name\":\"Bob\",\"id\":\"1\"}, {\"name\":\"Lily\",\"id\":\"2\"}, {\"name\":\"Lucy\",\"id\":\"3\"}]"        if let cats = [Cat].deserialize(from: jsonArrayString) {            cats.forEach({ (cat) in                print(cat?.name! as Any)                print(cat?.id! as Any)            })        }

7、字典 -> 模型

class BasicTypes: HandyJSON {    var int: Int = 2    var doubleOptional: Double?    var stringImplicitlyUnwrapped: String!         required init() {}} var dict = [String: Any]()        dict["doubleOptional"] = 1.1        dict["stringImplicitlyUnwrapped"] = "hello"        dict["int"] = 1        if let object = BasicTypes.deserialize(from: dict) {            print(object.doubleOptional as Any)            print(object.stringImplicitlyUnwrapped as Any)            print(object.int)        }

8、自定义解析规则

　　开发中某些关键字段为避免混淆，可以使用其他关键字替换

class Person: HandyJSON {    var ID: Int64!    var username: String!    var parents: (String, String)?         required init() {}         func mapping(mapper: HelpingMapper) {        mapper <<<            self.ID <-- "cat_id"        mapper <<<            self.username <-- "name"    }} let jsonString = "{\"cat_id\":12345,\"name\":\"Kitty\",\"parent\":\"Tom/Lily\",\"friend\":{\"id\":54321,\"name\":\"Lily\"}}"                 if let person = Person.deserialize(from: jsonString) {            print(person.ID as Any)            print(person.username as Any)        }

9、日常开发接口测试

class CarList : HandyJSON {    var ID : String!    var pic : String?    var comname : String?    var address : String?      required init() {    }    func mapping(mapper: HelpingMapper) {        mapper <<<            self.ID <-- "id"    }} //返回json样式//成功：//{//    "status": 1,//    "result": [{//        "id": "1",//        "pic": "图片地址",//        "comname": "汽车美容店",//        "address": "广东省"//    }]//}//失败：//{//    "status":0,//    "msg":"获取失败，请稍后重试..."//}let dict = ["pagesize":10,"page":1,"address":""] as [String : Any] NANetworkHandler.shareInstance.postRequest("https://******/submit_ajax.ashx?action=APP_GetBusiness", params: dict, success: { (response) in            let resultJson = response            if resultJson["status"] as! Int  == 1 {                if let carArr = [CarList].deserialize(from: (resultJson["result"] as! Array) ) {                    carArr.forEach({ (car) in                        print("\(String(describing: car?.ID))")                        print("\(String(describing: car?.pic))")                        print("\(String(describing: car?.comname))")                        print("\(String(describing: car?.address))")                    })                                     }            }else if response["status"] as! Int == 0 {                //...            }                                  }) { ( err) in              //...        }

附：

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