Question

如何为此json数据制作模型类

{
    total: 41,
    totalPages: 4,
    valueData: [
    {
    id: "23",
    lastLogin: "0-Jul-2011 11:27:36 AM",
    name: "varii"
    },
    {
    id: "24",
    lastLogin: "0-Jul-2015 11:27:36 AM",
    name: "sarii"
    },
    {
    id: "25",
    lastLogin: "0-Jul-2018 11:27:36 AM",
    name: "narii"
    } ]

}


class OnResponse {

    var total: Int?
    var totalPages: Int?

    init(response: [String: Any]) {
        self.total = response["total"]
        self.totalPages = response["totalPages"]
    }
}

如何才能让它为工作做好准备以及如何将值传递给控制器以建模以及如何从模型中获取值

Answer 1

遵循以下课程结构

class Response {
    var total: Int?
    var totalPages: Int?
    var valueData: [LoginData]?

    init(response: [String: Any]) {
       self.total = response["total"]
       self.totalPages = response["totalPages"]
       var items:[LoginData] = ()
       for (data in response["valueData"]) {
           let login = LoginData(name: data["name"], lastLogin: data["lastLogin"])
           items.append(login)
       }
       self.valueData = items
    }
}

class LoginData {
    var name: String?
    var lastLogin: String?

    init(name: String, lastLogin: String) {
        self.name = name
        self.lastLogin = lastLogin
    }
}

Answer 2

您的回复模型：

struct ModelName {

    var total: Int?
    var totalPage: Int?
    var reverseMatches: [LoginDetails]?
}

struct LoginDetails {

    var id: String?
    var lastLogin: String?
    var name: String?
}

解析api响应并在适当的字段上分配值。我已经做了，所有变量都是可选的。

分配如下所示的值。

var obj = Model()
obj.total = response["total"] as? Int

obj应为var，因为您要改变struct值。因为struct是value based，而不是reference based

Answer 3

你应该使用＆＃34; reverseMatches＆＃34;检索数组，而不是＆＃34;数据＆＃34;。可能是您可以使用第三个库将您的json数据转换为模型，例如Unbox，https://github.com/JohnSundell/Unbox。

Answer 4

class DataModel{
    var total : Int?
    var totalPages : Int?
    var valueData : [UserModel]?

    init(JSON: [String:Any?]){
        self = parser.doParse(JSON: JSON)
    }
}

class UserModel{
    var id : String?
    var lastLogin : String?
    var name : String?
}

class parser : NSObject{
    class func doParse(JSON: [String:Any?])->DataModel{
        let dataModel = DataModel()
        dataModel.total = JSON["total"] as? Int
        dataModel.totalPages = JSON["totalPages"] as? Int
        var userInfo : [UserModel] = []
        let valueData : [String:String?]? = JSON["valueData"] as? [String:String?]
        if let valueData = valueData{
            for dataDict : [String:String?] in valueData{
                let itemModel = UserModel()
                itemModel.id = dataDict["id"] as? String
                itemModel.lastLogin = dataDict["lastLogin"] as? String
                itemModel.name = dataDict["name"] as? String
                userInfo.append(itemModel)
            }
            dataModel.valueData = userInfo
        }
        return dataModel
    }
}

Answer 5

你应该使用struct而不是class来创建模型对象......

struct over class的优点 Why Choose Struct Over Class? 类/ 24232845 使用两个结构来保存数据，一个用于单个总计数和其他用于最后登录详细信息

struct lastLogin  {

let totalCount: (total: Int, totalPages: Int)
let valueArray: [lastLoginDetail]

}


struct lastLoginDetail {

let valueData: (id: String, lastLogin: String,name: String)

}

extension lastLoginDetail {

init(json: [String : String]) throws {
    let id = json["id"]
    let lastLogin = json["lastLogin"]
    let name = json["name"]
    let value = (id,lastLogin,name)
    self.valueData = value as! (id: String, lastLogin: String, name: String)
}

}

extension lastLogin {

init(json: [String : Any]) throws {
     let total = (json["total"] as! NSNumber).intValue
     let totalPages = (json["totalPages"] as! NSNumber).intValue
     let totalCounts = (total,totalPages)
     var userInfo : [lastLoginDetail] = []
    // Extract and validate valueData
    let valueData = json["valueData"] as? NSArray
    if let valueData = valueData{
      for dataDict   in valueData{
        let dic : [String : String] = dataDict as! [String : String]
        let  lastLoginDeatails = try! lastLoginDetail(json: dic)
        userInfo.append(lastLoginDeatails)
    }
    }
    self.valueArray = userInfo
    self.totalCount = totalCounts
}

}



func HowToUseModelClass(){

let jsonDic  = NSDictionary()
// jsonDic // your json value
let  dataValue = try! lastLogin(json: (jsonDic as! [String : Any])) // parsing the data
print(dataValue.totalCount.total)
print(dataValue.totalCount.totalPages)
print(dataValue.valueArray[0].valueData.id)

 }

Answer 6

class LoginData: NSObject {
let total: Int = 0
let totalPages: Int = 0
let valueData: Array<ValueData> = Array<ValueData>()
override init(total: Int!, totalPages: Int, valueData: Array<ValueData>!) {
self.total = total
self.totalPages = totalPages
self.valueData = valueData
}
}

struct ValueData {
let id: int?
let lastLogin: String?
let name: String?
init(id: int!, lastLogin: string, name: string!)
self.id = id ?? 0
self.lastLogin = lastLogin ?? ""
self.name = name ?? ""
}
}

如何在模型类中处理数组？

6 个答案: