我还写了一个小库，专门用于将json响应映射到对象结构。我在内部使用David Owens的库json-swift。也许对其他人有用。
https://github.com/prine/ROJSONParser
示例Employees.json
{
"employees": [
{
"firstName": "John",
"lastName": "Doe",
"age": 26
},
{
"firstName": "Anna",
"lastName": "Smith",
"age": 30
},
{
"firstName": "Peter",
"lastName": "Jones",
"age": 45
}]
}
下一步，您必须创建数据模型（EmplyoeeContainer和Employee）。
员工迅捷
class Employee : ROJSONObject {
required init() {
super.init();
}
required init(jsonData:AnyObject) {
super.init(jsonData: jsonData)
}
var firstname:String {
return Value<String>.get(self, key: "firstName")
}
var lastname:String {
return Value<String>.get(self, key: "lastName")
}
var age:Int {
return Value<Int>.get(self, key: "age")
}
}
EmployeeContainer.swift
class EmployeeContainer : ROJSONObject {
required init() {
super.init();
}
required init(jsonData:AnyObject) {
super.init(jsonData: jsonData)
}
lazy var employees:[Employee] = {
return Value<[Employee]>.getArray(self, key: "employees") as [Employee]
}()
}
然后，要从JSON响应中实际映射对象，只需要将数据作为构造函数中的参数传递到EmployeeContainer类中。它会自动创建您的数据模型。
var baseWebservice:BaseWebservice = BaseWebservice();
var urlToJSON = "http://prine.ch/employees.json"
var callbackJSON = {(status:Int, employeeContainer:EmployeeContainer) -> () in
for employee in employeeContainer.employees {
println("Firstname: \(employee.firstname) Lastname: \(employee.lastname) age: \(employee.age)")
}
}
baseWebservice.get(urlToJSON, callback:callbackJSON)
控制台输出如下所示：
Firstname: John Lastname: Doe age: 26
Firstname: Anna Lastname: Smith age: 30
Firstname: Peter Lastname: Jones age: 45