我的
JSON数据
{
"addon_items" : [
{
"aname" : "","id" : "2588","name" : "Plain Nan","order" : "1","aid" : "259","Sub_Add_Items" : "","icon" : "","status" : "1","next" : "0","price" : "0.60"
},{
"aname" : "","id" : "2589","name" : "Pitta Bread","order" : "2","price" : "0.00"
}
],"addon" : {
"description" : "Please choose your Nan bread","aname" : "","id" : "259","limit" : "1","special_addon" : "","next" : "165"
}
}
我创建了三个名为AddOnResponse,AddOn,AddOnItems的类模型,如下所示：
AddOnResponse类模型
class AddOnResponse {
var addon: Array<String>?
var addonitems: Array<AnyObject>?
init(addon:Array<String>?,addonitems: Array<AnyObject>?){
self.addon = addon
self.addonitems = addonitems
}
}
AddOn类模型
class AddOn {
var id: Int?
var icon: String?
var desc: String?
var limit: Int?
var next: Int?
var aname: String?
var specialaddon: Int?
init(id: Int?,icon: String?,desc: String?,limit: Int?,next: Int?,aname: String?,specialaddon: Int?){
self.id = id
self.icon = icon
self.desc = desc
self.limit = limit
self.next = next
self.aname = aname
self.specialaddon = specialaddon
}
}
AddOnItems类模型
class AddOnItems {
var id: Int?
var aid: Int?
var name: String?
var price: Int?
var order: Int?
var status: Int?
var next: Int?
var aname: String?
var subaddItems: Int?
var icon: String?
init(id: Int?,aid: Int?,name: String?,price: Int?,order: Int?,status: Int?,subaddItems: Int?,icon: String?){
self.id = id
self.aid = aid
self.name = name
self.price = price
self.order = order
self.status = status
self.next = next
self.aname = aname
self.subaddItems = subaddItems
self.icon = icon
}
}
现在我使用Alamofire获取我的JSON数据,但是当使用对象接受dat到类模型时,我获得了nil值.
var addonResponses = [AddOnResponse]()
Alamofire.request(.GET,myAddOnUrl)
.validate()
.responseJSON
{ response in
switch response.result
{
case .Success:
if let value = response.result.value{
let json = JSON(value)
print(json)
print(json["addon"].arrayValue)
for(_,content) in json{
let addOnRes = AddOnResponse(addon:content["addon"].arrayValue,addonitems:content["addon_items"].Arrayobject)
print(self.addonResponses.count)
print(addOnRes.addon)
print(addOnRes.addonitems)
}
}
addon和addonitems数据是零,为什么？
解决方法
在完成JSON响应之后,我看到的是你得到的对象有两个节点(或属性).
首先是“addon_items”,它有一个数组,你已经为它创建了一个正确的AddOnItems类.
第二个 – “插件”：这里的这个键是指’Dictionary’而不是数组.
首先是“addon_items”,它有一个数组,你已经为它创建了一个正确的AddOnItems类.
第二个 – “插件”：这里的这个键是指’Dictionary’而不是数组.
因此,要将响应存储在AddOnResponse对象中,请尝试以下代码.
Alamofire.request(.GET,myAddOnUrl).validate().reponseJSON { response in
switch resonse.result {
case .Success:
if let value = response.result.value {
let json = JSON(value)
let responseDictionary = json.dictionaryValue as? [String: AnyObject]
let addOnRes = AddOnResponse(addon:responseDictionary["addon"].dictionaryValue,addonitems:responseDictionary["addon_items"].arrayValue)
}
case .Failure:
break
}
}
还要更改AddOnResponse类
class AddOnResponse {
var addon: [String: AnyObject]?
var addonitems: Array<AnyObject>?
init(addon:[String: AnyObject]?,addonitems: Array<AnyObject>?){
self.addon = addon
self.addonitems = addonitems
}
}
TL; DR
您的JSON响应与您在应用中制作的模型不完全对应.仔细检查你的json响应的“addon”键,它有一个字典对象,而不是一个ARRAY,因此可以制作你的模型类.
编辑：纠正错误以指出投射错误.
我现在建议的是传递`add_on’键的JSON对象.在AddOn类中更改初始化程序,以便它采用JSON对象.然后使用初始化它们.
AddOn类初始化程序
init(json: JSON) {
id = json["id"].intValue
name = json["name"].stringValue
// and so on
}
同样地,AddOnItems也是如此.并且在AddOnResponse初始化器中循环迭代AddOnItems的JSON对象.初始化它并附加到addOnItems数组属性.抱歉,目前无法为其编写代码.有时间限制.