由于JSON格式能表达的数据类型是比较有限的，所以服务器返回的JSON数据有时无法自动转换成客户端想要的数据类型。
- 比如服务器返回的时间可能是个毫秒数1565480696，但客户端想要的是Date类型
- 再比如客户端想要的是浮点数Double类型，但服务器返回的可能是字符串类型"6.45"
- 再比如客户端想要的是Bool类型，但服务器返回的可能是"true"、"1"、0
- 再比如客户端想要的是高精度浮点数NSDecimalNumber类型，服务器为了维持精度可能返回字符串"0.1234567890123456789"
1. Int
struct Student: Convertible {
var age1: Int8 = 6
var age2: Int16 = 0
var age3: Int32 = 0
var age4: Int64 = 0
var age5: UInt8 = 0
var age6: UInt16 = 0
var age7: UInt32 = 0
var age8: UInt64 = 0
var age9: UInt = 0
var age10: Int = 0
var age11: Int = 0
}
let json: [String: Any] = [
"age1": "suan8fa8",
"age2": "6suan8fa8",
"age3": "6",
"age4": 6.66,
"age5": NSNumber(value: 6.66),
"age6": Int32(6),
"age7": true,
"age8": "FALSE",
"age9": Decimal(6.66),
"age10": NSDecimalNumber(value: 6.66),
"age11": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("age1:\(student.age1) age2:\(student.age2) age3:\(student.age3) age4:\(student.age4) age5:\(student.age5) age6:\(student.age6) age7:\(student.age7) age8:\(student.age8) age9:\(student.age9) age10:\(student.age10) age11:\(student.age11)")
/*
age1:6 age2:6 age3:6 age4:6 age5:6 age6:6 age7:1 age8:0 age9:6 age10:6 age11:1565922866
*/
2. Float
struct Student: Convertible {
var height1: Float = 0.0
var height2: Float = 0.0
var height3: Float = 0.0
var height4: Float = 0.0
var height5: Float = 0.0
var height6: Float = 0.0
var height7: Float = 0.0
var height8: Float = 0.0
var height9: Float = 0.0
}
let json: [String: Any] = [
"height1": "6.66suan8fa8",
"height2": "0.12345678",
"height3": NSDecimalNumber(string: "0.12345678"),
"height4": Decimal(string: "0.12345678") as Any,
"height5": 666,
"height6": true,
"height7": "NO",
"height8": CGFloat(0.12345678),
"height9": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("height1:\(student.height1) height2:\(student.height2) height3:\(student.height3) height4:\(student.height4) height5:\(student.height5) height6:\(student.height6) height7:\(student.height7) height8:\(student.height8) height9:\(student.height9)")
/*
height1:6.66 height2:0.12345678 height3:0.12345678 height4:0.12345678 height5:666.0 height6:1.0 height7:0.0 height8:0.12345678 height9:1.5659228e+09
*/
3. Double
struct Student: Convertible {
var height1: Double = 0.0
var height2: Double = 0.0
var height3: Double = 0.0
var height4: Double = 0.0
var height5: Double = 0.0
var height6: Double = 0.0
var height7: Double = 0.0
var height8: Double = 0.0
var height9: Double = 0.0
}
let json: [String: Any] = [
"height1": "6.66suan8fa8",
"height2": "0.1234567890123456",
"height3": NSDecimalNumber(string: "0.1234567890123456"),
"height4": Decimal(string: "0.1234567890123456") as Any,
"height5": 666,
"height6": true,
"height7": "NO",
"height8": CGFloat(0.1234567890123456),
"height9": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("height1:\(student.height1) height2:\(student.height2) height3:\(student.height3) height4:\(student.height4) height5:\(student.height5) height6:\(student.height6) height7:\(student.height7) height8:\(student.height8) height9:\(student.height9)")
/*
height1:6.66 height2:0.1234567890123456 height3:0.1234567890123456 height4:0.1234567890123456 height5:666.0 height6:1.0 height7:0.0 height8:0.1234567890123456 height9:1565922866.0
*/
4. CGFloat
struct Student: Convertible {
var height1: CGFloat = 0.0
var height2: CGFloat = 0.0
var height3: CGFloat = 0.0
var height4: CGFloat = 0.0
var height5: CGFloat = 0.0
var height6: CGFloat = 0.0
var height7: CGFloat = 0.0
var height8: CGFloat = 0.0
var height9: CGFloat = 0.0
}
let json: [String: Any] = [
"height1": "6.66suan8fa8",
"height2": "0.1234567890123456",
"height3": NSDecimalNumber(string: "0.1234567890123456"),
"height4": Decimal(string: "0.1234567890123456") as Any,
"height5": 666,
"height6": true,
"height7": "NO",
"height8": 0.1234567890123456,
"height9": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("height1:\(student.height1) height2:\(student.height2) height3:\(student.height3) height4:\(student.height4) height5:\(student.height5) height6:\(student.height6) height7:\(student.height7) height8:\(student.height8) height9:\(student.height9)")
/*
height1:6.66 height2:0.1234567890123456 height3:0.1234567890123456 height4:0.1234567890123456 height5:666.0 height6:1.0 height7:0.0 height8:0.1234567890123456 height9:1565922866.0
*/
5. Bool
struct Student: Convertible {
var rich1: Bool = false
var rich2: Bool = false
var rich3: Bool = false
var rich4: Bool = false
var rich5: Bool = false
var rich6: Bool = false
}
let json: [String: Any] = [
"rich1": 100,
"rich2": 0.0,
"rich3": "1",
"rich4": NSNumber(value: 0.666),
"rich5": "true",
"rich6": "NO"
]
// 数值0为false，数值非0都是true
let student = json.kj.model(Student.self)
print("rich1:\(student.rich1) rich2:\(student.rich2) rich3:\(student.rich3) rich4:\(student.rich4) rich5:\(student.rich5) rich6:\(student.rich6)")
/*
rich1:true rich2:false rich3:true rich4:true rich5:true rich6:false
*/
6. String
// 不管是String、NSString，还是NSMutableString，都是等效支持的
struct Student: Convertible {
var name1: String = ""
var name2: String = ""
var name3: NSString = ""
var name4: NSString = ""
var name5: NSMutableString = ""
var name6: NSMutableString = ""
var name7: String = ""
var name8: String = ""
var name9: String = ""
}
let json: [String: Any] = [
"name1": 666,
"name2": NSMutableString(string: "777"),
"name3": [1,[2,3],"4"],
"name4": NSDecimalNumber(string: "0.123456789012345678901234567890123456789"),
"name5": 6.66,
"name6": false,
"name7": NSURL(fileURLWithPath: "/users/mj/desktop"),
"name8": URL(string: "http://www.520suanfa.com") as Any,
"name9": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("name1:\(student.name1) name2:\(student.name2) name3:\(student.name3) name4:\(student.name4) name5:\(student.name5) name6:\(student.name6) name7:\(student.name7) name8:\(student.name8) name9:\(student.name9)")
/*
name1:666 name2:777 name3:[1, [2, 3], "4"] name4:0.123456789012345678901234567890123456789 name5:6.66 name6:false name7:file:///users/mj/desktop name8:http://www.520suanfa.com name9:1565922866
*/
7. Decimal
struct Student: Convertible {
var money1: Decimal = 0
var money2: Decimal = 0
var money3: Decimal = 0
var money4: Decimal = 0
var money5: Decimal = 0
var money6: Decimal = 0
var money7: Decimal = 0
var money8: Decimal = 0
}
let json: [String: Any] = [
"money1": 0.1234567890123456,
"money2": true,
"money3": NSDecimalNumber(string: "0.123456789012345678901234567890123456789"),
"money4": "0.123456789012345678901234567890123456789",
"money5": 666,
"money6": "NO",
"money7": CGFloat(0.1234567890123456),
"money8": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("money1:\(student.money1) money2:\(student.money2) money3:\(student.money3) money4:\(student.money4) money5:\(student.money5) money6:\(student.money6) money7:\(student.money7) money8:\(student.money8)")
/*
money1:0.1234567890123456 money2:1 money3:0.123456789012345678901234567890123456789 money4:0.123456789012345678901234567890123456789 money5:666 money6:0 money7:0.1234567890123456 money8:1565922866
*/
8. NSDecimalNumber
struct Student: Convertible {
var money1: NSDecimalNumber = 0
var money2: NSDecimalNumber = 0
var money3: NSDecimalNumber = 0
var money4: NSDecimalNumber = 0
var money5: NSDecimalNumber = 0
var money6: NSDecimalNumber = 0
var money7: NSDecimalNumber = 0
var money8: NSDecimalNumber = 0
}
let json: [String: Any] = [
"money1": 0.1234567890123456,
"money2": true,
"money3": Decimal(string: "0.123456789012345678901234567890123456789") as Any,
"money4": "0.123456789012345678901234567890123456789",
"money5": 666.0,
"money6": "NO",
"money7": CGFloat(0.1234567890123456),
"money8": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("money1:\(student.money1) money2:\(student.money2) money3:\(student.money3) money4:\(student.money4) money5:\(student.money5) money6:\(student.money6) money7:\(student.money7) money8:\(student.money8)")
/*
money1:0.1234567890123456 money2:1 money3:0.123456789012345678901234567890123456789 money4:0.123456789012345678901234567890123456789 money5:666 money6:0 money7:0.1234567890123456 money8:1565922866
*/
9. NSNumber
struct Student: Convertible {
var money1: NSNumber = 0
var money2: NSNumber = 0
var money3: NSNumber = 0
var money4: NSNumber = 0
var money5: NSNumber = 0
var money6: NSNumber = 0
var money7: NSNumber = 0
var money8: NSNumber = 0
}
let json: [String: Any] = [
"money1": 0.1234567890123456,
"money2": true,
"money3": Decimal(string: "0.1234567890123456") as Any,
"money4": "0.1234567890123456",
"money5": 666.0,
"money6": "NO",
"money7": CGFloat(0.1234567890123456),
"money8": Date(timeIntervalSince1970: 1565922866)
]
let student = json.kj.model(Student.self)
print("money1:\(student.money1) money2:\(student.money2) money3:\(student.money3) money4:\(student.money4) money5:\(student.money5) money6:\(student.money6) money7:\(student.money7) money8:\(student.money8)")
/*
money1:0.1234567890123456 money2:1 money3:0.1234567890123456 money4:0.1234567890123456 money5:666 money6:0 money7:0.1234567890123456 money8:1565922866
*/
10. URL
// 支持URL和NSURL，默认会将String转为URL\NSURL
struct Student: Convertible {
var url1: NSURL?
var url2: NSURL?
var url3: URL?
var url4: URL?
}
let url = "http://520suanfa.com/红黑树"
let encodedUrl = "http://520suanfa.com/%E7%BA%A2%E9%BB%91%E6%A0%91"
let json: [String: Any] = [
"url1": url,
"url2": URL(string: encodedUrl) as Any,
"url3": url,
"url4": NSURL(string: encodedUrl) as Any
]
let student = json.kj.model(Student.self)
print("url1:\(student.url1!) url2:\(student.url2!) url3:\(student.url3!) url4:\(student.url4!)")
/*
url1:http://520suanfa.com/%E7%BA%A2%E9%BB%91%E6%A0%91 url2:http://520suanfa.com/%E7%BA%A2%E9%BB%91%E6%A0%91 url3:http://520suanfa.com/%E7%BA%A2%E9%BB%91%E6%A0%91 url4:http://520suanfa.com/%E7%BA%A2%E9%BB%91%E6%A0%91
*/
11. Date
// 支持Date和NSDate，默认会将秒数转为Date\NSDate
struct Student: Convertible {
var date1: NSDate?
var date2: NSDate?
var date3: Date?
var date4: Date?
var date5: Date?
var date6: Date?
var date7: Date?
}
let milliseconds: TimeInterval = 1565922866
let json: [String: Any] = [
"date1": milliseconds,
"date2": Date(timeIntervalSince1970: milliseconds),
"date3": milliseconds,
"date4": NSDate(timeIntervalSince1970: milliseconds),
"date5": "\(milliseconds)",
"date6": NSDecimalNumber(string: "\(milliseconds)"),
"date7": Decimal(string: "\(milliseconds)") as Any
]
let student = json.kj.model(Student.self)
print("date1:\(student.date1!) date2:\(student.date2!) date3:\(student.date3!) date4:\(student.date4!) date5:\(student.date5!) date6:\(student.date6!) date7:\(student.date7!)")
/*
date1:2019-08-16 02:34:26 +0000 date2:2019-08-16 02:34:26 +0000 date3:2019-08-16 02:34:26 +0000 date4:2019-08-16 02:34:26 +0000 date5:2019-08-16 02:34:26 +0000 date6:2019-08-16 02:34:26 +0000 date7:2019-08-16 02:34:26 +0000
*/
12. Enum
// 遵守一下ConvertibleEnum协议即可支持带有RawValue的Enum类型
enum Grade: String, ConvertibleEnum {
case perfect = "A"
case great = "B"
case good = "C"
case bad = "D"
}
struct Student: Convertible {
var grade1: Grade = .perfect
var grade2: Grade = .perfect
}
let json: [String: Any] = [
"grade1": "C",
"grade2": "D"
]
let student = json.kj.model(Student.self)
print("grade1:\(student.grade1.rawValue) grade2:\(student.grade2)")
// grade1:C grade2:bad
/**********************************************/
// 换个浮点数试试
enum Grade2: Double, ConvertibleEnum {
case perfect = 8.88
case great = 7.77
case good = 6.66
case bad = 5.55
}
struct Student2: Convertible {
var grade1: Grade2 = .perfect
var grade2: Grade2 = .perfect
var grade3: Grade2 = .perfect
var grade4: Grade2 = .perfect
}
let json: [String: Any] = [
"grade1": "5.55kaka",
"grade2": 6.66,
"grade3": NSNumber(value: 7.77),
"grade4": NSDecimalNumber(string: "8.88")
]
let student = json.kj.model(Student2.self)
print("grade1:\(student.grade1) grade2:\(student.grade2) grade3:\(student.grade3) grade4:\(student.grade4)")
// grade1:bad grade2:good grade3:great grade4:perfect
13. Array
// 支持Array、NSArray、NSMutableArray与Set、NSSet、NSMutableSet之间自动转换
struct Person: Convertible {
var array1: [Int]?
var array2: NSArray?
var array3: NSMutableArray?
var array4: [Int]?
var array5: NSArray?
var array6: NSMutableArray?
}
let array = [1, 2, 3]
let json: [String: Any] = [
"array1": NSMutableArray(array: array),
"array2": array,
"array3": array,
"array4": NSMutableSet(array: array),
"array5": NSSet(array: array),
"array6": Set(array),
]
let person = json.kj.model(Person.self)
print("array1:\(person.array1!) array2:\(person.array2!) array3:\(person.array3!) array4:\(person.array4!) array5:\(person.array5!) array6:\(person.array6!)")
/*
array1:[1, 2, 3] array2:(
1,
2,
3
) array3:(
1,
2,
3
) array4:[3, 1, 2] array5:(
3,
1,
2
) array6:(
3,
1,
2
)
*/
14. Dictionary
// 支持Dictionary、NSDictionary、NSMutableDictionary之间自动转换
struct Person: Convertible {
var dict1: [String: Any]?
var dict2: NSDictionary?
var dict3: NSMutableDictionary?
}
let dict = ["no1": 100, "no2": 200]
let json: [String: Any] = [
"dict1": NSMutableDictionary(dictionary: dict),
"dict2": dict,
"dict3": dict
]
let person = json.kj.model(Person.self)
print("dict1:\(person.dict1!) dict2:\(person.dict2!) dict3:\(person.dict3!)")
/*
dict1:["no1": 100, "no2": 200] dict2:{
no1 = 100;
no2 = 200;
} dict3:{
no1 = 100;
no2 = 200;
}
*/
Swift 字典转模型(KakaJSON) ---1.基本用法
Swift 字典转模型(KakaJSON) ---3.key处理
Swift 字典转模型(KakaJSON) ---4.动态模型
Swift KakaJSON 05.---模型转字典
Swift KakaJSON 06.---Coding/归档/解档
