在没有可编码的情况下手动解包 JSON - Swift

Question

我正在尝试手动解开 JSON 而不使用可编码。我可以显示顶层，但无法显示收款人地址。我知道这是我模型中的东西。我希望有人可以看看我的代码。

JSON 示例

我的模特

class Beneficiary {
    
    private struct JSONConstants {
        static let lastName = "lastName"
        static let firstName = "firstName"
        static let designationCode = "designationCode"
        static let beneType = "beneType"
        static let ssn = "socialSecurityNumber"
        static let dob = "dateOfBirth"
        static let middleName = "middleName"
        static let phoneNumber = "phoneNumber"
        static let beneficiaryAddress = "beneficiaryAddress"
    }
    
    let beneficiaryLastName: String
    let beneficiaryFirstName: String
    let beneficiaryDesignationCode: String
    let beneficiaryType: String
    let beneficiarySSN: String
    let beneficiaryDOB: String
    let beneficiaryMiddleName: String
    let beneficiaryPhoneNumber: String
    let beneficiaryAddress: BeneficiaryAddress
    
    init(beneficiaryLastName: String, beneficiaryFirstName: String, beneficiaryDesignationCode: String, beneficiaryType: String, beneficiarySSN: String, beneficiaryDOB: String, beneficiaryMiddleName: String, beneficiaryPhoneNumber: String, beneficiaryAddress: BeneficiaryAddress) {
        
        self.beneficiaryLastName = beneficiaryLastName
        self.beneficiaryFirstName = beneficiaryFirstName
        self.beneficiaryDesignationCode = beneficiaryDesignationCode
        self.beneficiaryType = beneficiaryType
        self.beneficiarySSN = beneficiarySSN
        self.beneficiaryDOB = beneficiaryDOB
        self.beneficiaryMiddleName = beneficiaryMiddleName
        self.beneficiaryPhoneNumber = beneficiaryPhoneNumber
        self.beneficiaryAddress = beneficiaryAddress
    }
    
    ///Convenience Init used to create a Beneficiary object with a json object
    convenience init(json: [String: AnyObject]) {
        
        let beneficiaryLastName = json[JSONConstants.lastName] as? String ?? ""
        let beneficiaryFirstName = json[JSONConstants.firstName] as? String ?? ""
        let beneficiaryDesignationCode = json[JSONConstants.designationCode] as? String ?? ""
        let beneficiaryType = json[JSONConstants.beneType] as? String ?? ""
        let beneficiarySSN = json[JSONConstants.ssn] as? String ?? ""
        let beneficiaryDOB = json[JSONConstants.dob] as? String ?? ""
        let beneficiaryMiddleName = json[JSONConstants.middleName] as? String ?? ""
        let beneficiaryPhoneNumber = json[JSONConstants.phoneNumber] as? String ?? ""
        let beneficiaryAddress = json[JSONConstants.beneficiaryAddress] as? BeneficiaryAddress ?? BeneficiaryAddress(beneficiaryAddressOne: "Unavailable", beneficiaryAddressTwo: "Unavailable", beneficiaryCity: "Unavailable", beneficiaryZipCode: "Unavailable", beneficiaryStateCode: "Unavailable", beneficiaryCountry: "Unavailable")
        
        self.init(beneficiaryLastName: beneficiaryLastName, beneficiaryFirstName: beneficiaryFirstName, beneficiaryDesignationCode: beneficiaryDesignationCode, beneficiaryType: beneficiaryType, beneficiarySSN: beneficiarySSN, beneficiaryDOB: beneficiaryDOB, beneficiaryMiddleName: beneficiaryMiddleName, beneficiaryPhoneNumber: beneficiaryPhoneNumber, beneficiaryAddress: beneficiaryAddress)
    }
    
    /**
    helper function used to transform self into JSON, used for local persistence.

    - returns: dictionary that we can use to serialize later
     
    */
    func convertSelfToJSON() -> [String:Any] {
        return [
            JSONConstants.lastName: beneficiaryLastName,
            JSONConstants.firstName: beneficiaryFirstName,
            JSONConstants.designationCode: beneficiaryDesignationCode,
            JSONConstants.beneType: beneficiaryType,
            JSONConstants.ssn: beneficiarySSN,
            JSONConstants.dob: beneficiaryDOB,
            JSONConstants.middleName: beneficiaryMiddleName,
            JSONConstants.phoneNumber: beneficiaryPhoneNumber,
            JSONConstants.beneficiaryAddress: beneficiaryAddress
        ]
    }
}

//标记：- 二级收款人地址

/** 来自 JSON 的二级受益人数据 */

class BeneficiaryAddress {
    
    private struct JSONConstants {
        static let addressLineOne = "firstLineMailing"
        static let addressLineTwo = "scndLineMailing"
        static let city = "city"
        static let zipCode = "zipCode"
        static let stateCode = "stateCode"
        static let country = "oountry"
    }
    
    let beneficiaryAddressOne: String
    let beneficiaryAddressTwo: String // Handle this properly as the result is null
    let beneficiaryCity: String
    let beneficiaryZipCode: String
    let beneficiaryStateCode: String
    let beneficiaryCountry: String
    
    init(beneficiaryAddressOne: String, beneficiaryAddressTwo: String, beneficiaryCity: String, beneficiaryZipCode: String, beneficiaryStateCode: String, beneficiaryCountry: String) {
        
        self.beneficiaryAddressOne = beneficiaryAddressOne
        self.beneficiaryAddressTwo = beneficiaryAddressTwo
        self.beneficiaryCity = beneficiaryCity
        self.beneficiaryZipCode = beneficiaryZipCode
        self.beneficiaryStateCode = beneficiaryStateCode
        self.beneficiaryCountry = beneficiaryCountry
    }
    
    ///Convenience Init used to create a Beneficiary object with a json object
    convenience init(json: [String: AnyObject]) {
        
        let beneficiaryAddressOne = json[JSONConstants.addressLineOne] as? String ?? ""
        let beneficiaryAddressTwo = json[JSONConstants.addressLineTwo] as? String ?? ""
        let beneficiaryCity = json[JSONConstants.city] as? String ?? ""
        let beneficiaryZipCode = json[JSONConstants.zipCode] as? String ?? ""
        let beneficiaryStateCode = json[JSONConstants.stateCode] as? String ?? ""
        let beneficiaryCountry = json[JSONConstants.country] as? String ?? ""
        
        self.init(beneficiaryAddressOne: beneficiaryAddressOne, beneficiaryAddressTwo: beneficiaryAddressTwo, beneficiaryCity: beneficiaryCity, beneficiaryZipCode: beneficiaryZipCode, beneficiaryStateCode: beneficiaryStateCode, beneficiaryCountry: beneficiaryCountry)
    }
    
    /**
    helper function used to transform self into JSON, used for local persistence.

    - returns: dictionary that we can use to serialize later
     
    */
    func convertSelfToJSON() -> [String: Any] {
        return [
            JSONConstants.addressLineOne: beneficiaryAddressOne,
            JSONConstants.addressLineTwo: beneficiaryAddressTwo,
            JSONConstants.city: beneficiaryCity,
            JSONConstants.zipCode: beneficiaryZipCode,
            JSONConstants.stateCode: beneficiaryStateCode,
            JSONConstants.country: beneficiaryCountry,
        ]
    }
}

Answer 1

可以想象，如果你打算走这条路，你可以让

Beneficiary.init(json:)

利用

BeneficiaryAddress(json:)

初始化器，例如：

class Beneficiary {    
    …
    
    ///Convenience Init used to create a Beneficiary object with a json object
    convenience init(json: [String: AnyObject]) {
        let beneficiaryLastName = …
        let beneficiaryFirstName = …
        let beneficiaryDesignationCode = …
        let beneficiaryType = …
        let beneficiarySSN = …
        let beneficiaryDOB = …
        let beneficiaryMiddleName = …
        let beneficiaryPhoneNumber = …
        let beneficiaryAddress = if let addressDictionary = json[JSONConstants.beneficiaryAddress] as? [String: AnyObject] {
            BeneficiaryAddress(json: addressDictionary)
        } else {
            BeneficiaryAddress(beneficiaryAddressOne: "Unavailable", beneficiaryAddressTwo: "Unavailable", beneficiaryCity: "Unavailable", beneficiaryZipCode: "Unavailable", beneficiaryStateCode: "Unavailable", beneficiaryCountry: "Unavailable")
        }
        
        self.init(beneficiaryLastName: beneficiaryLastName, beneficiaryFirstName: beneficiaryFirstName, beneficiaryDesignationCode: beneficiaryDesignationCode, beneficiaryType: beneficiaryType, beneficiarySSN: beneficiarySSN, beneficiaryDOB: beneficiaryDOB, beneficiaryMiddleName: beneficiaryMiddleName, beneficiaryPhoneNumber: beneficiaryPhoneNumber, beneficiaryAddress: beneficiaryAddress)
    }
    
    …
}

主题有很多变化，但希望这能说明这个想法。