Ios 如何在swift 4.1和xcode 9.3中使用JSONDecoder解码嵌套的JSON数组和对象?
我不熟悉iOS,对嵌套的JSON文件进行解码时遇到问题,该文件包含许多嵌套数组和对象。我正在使用JSONDecoder进行解码,但在某些地方我犯了错误或解码不正确 我的解码器是Ios 如何在swift 4.1和xcode 9.3中使用JSONDecoder解码嵌套的JSON数组和对象?,ios,json,swift,xcode,jsondecoder,Ios,Json,Swift,Xcode,Jsondecoder,我不熟悉iOS,对嵌套的JSON文件进行解码时遇到问题,该文件包含许多嵌套数组和对象。我正在使用JSONDecoder进行解码,但在某些地方我犯了错误或解码不正确 我的解码器是 let myOrder = try JSONDecoder().decode(MyOrder.self, from: data!) for items in myOrder.OrderDetials { self.orders.app
let myOrder = try JSONDecoder().decode(MyOrder.self, from: data!)
for items in myOrder.OrderDetials {
self.orders.append(MyOrders(order_id: items.order_id!, order_ref_number: items.order_ref_number!, cust_mob: items.cust_mob!, store_name: items.store_name!, store_id: items.store_id!, order_details: items.order_details!, order_amount: items.order_amount!, order_status: items.order_status!, order_status_remark: items.order_status_remark!, order_place_at: items.order_place_at!, order_status_change_at: items.order_status_change_at!))
print(items.cust_mob!)
}
print(myOrder)
它抛出的错误是
typeMismatch(Swift.Array<Any>, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "OrderDetials", intValue: nil), _JSONKey(stringValue: "Index 0", intValue: 0), CodingKeys(stringValue: "order_details", intValue: nil)], debugDescription: "Expected to decode Array<Any> but found a string/data instead.", underlyingError: nil))
和数据模型类
class MyOrders {
var order_id: String
var order_ref_number: String
var cust_mob: String
var store_name: String
var store_id: String
var order_details: OrderItems?
var order_amount: String
var order_status: String
var order_status_remark: String
var order_place_at: String
var order_status_change_at: String?
init(order_id: String, order_ref_number: String, cust_mob: String, store_name: String, store_id: String, order_details: OrderItems?, order_amount: String, order_status: String, order_status_remark: String, order_place_at: String, order_status_change_at: String?) {
self.order_id = order_id
self.order_ref_number = order_ref_number
self.cust_mob = cust_mob
self.store_name = store_name
self.store_id = store_id
self.order_details = order_details
self.order_amount = order_amount
self.order_status = order_status
self.order_status_remark = order_status_remark
self.order_place_at = order_place_at
self.order_status_change_at = order_status_change_at
}
}
class MyItems {
var item: String
var name: String
var price: String
init(item: String, name: String, price: String) {
self.item = item
self.name = name
self.price = price
}
}
我的JSON是
{
"OrderDetials": [
{
"order_id": "11",
"order_ref_number": "MM1525235813",
"cust_mob": "9958324531",
"store_name": "Moti mahal",
"store_id": "1",
"order_details": "{'allorder':[{\"date_time\":\"\",\"item\":\"2\",\"name\":\"CHICKN ROLL\",\"price\":\"360\"}]}{\"TaxDetials\":[{\"tax_per\":\"5\",\"tax_name\":\"CGST & SGST\"}]}",
"order_amount": "378.0",
"order_status": "1",
"order_status_remark": "New_Order_Place",
"order_place_at": "2018-05-02 10:06:53",
"order_status_change_at": null
}
]
}
请有人告诉我如何正确解码,或者我需要在结构中做什么更改。
orderdetals
是字典的数组
[[String:String?]]
,您的初始
响应也是字典的顺序详细信息
是错误的json字符串
不是字典
,因此,我们将它解析为字符串,在Codable
中,每个字典{}
都被转换为tStruct
或Class
,[]
是数组
型号:
import Foundation
struct Initial: Codable {
let orderDetials: [OrderDetial]
enum CodingKeys: String, CodingKey {
case orderDetials = "OrderDetials"
}
}
struct OrderDetial: Codable {
let orderID, orderRefNumber, custMob, storeName: String
let storeID, orderDetails, orderAmount, orderStatus: String
let orderStatusRemark, orderPlaceAt: String
let orderStatusShangeAt:String?
enum CodingKeys: String, CodingKey {
case orderID = "order_id"
case orderRefNumber = "order_ref_number"
case custMob = "cust_mob"
case storeName = "store_name"
case storeID = "store_id"
case orderDetails = "order_details"
case orderAmount = "order_amount"
case orderStatus = "order_status"
case orderStatusRemark = "order_status_remark"
case orderPlaceAt = "order_place_at"
case orderStatusShangeAt = "order_status_change_at"
}
}
// MARK: Convenience initializers
extension Initial {
init(data: Data) throws {
self = try JSONDecoder().decode(Initial.self, from: data)
}
}
这样使用:
if let initial = try? Initial.init(data: data){
for item in initial.orderDetials {
print(item.orderAmount)
print(item.orderDetails) // here is Wrong format from your Server API
}
}
订单详细信息错误
“order\u details”键的值是string,结构将其视为数组。必须根据定义的结构更改“order\u details”键的值以使其工作。order\u details包含类似JSON的结构,而不是string。我尝试过这样做:“var order\u details:string?”和“var order\u details:[OrderItems]?”两者都给出了相同的错误@Vikkyvar订单详细信息:字符串?正在处理这篇文章,它很好地解释了我现在得到的orderDetails是字符串。我是否需要使用JSONSerialization来访问其中的数据,或者JSONDecoder将自动执行此操作?是的,您可以再次解析它,但它也错误地检查此
'allorder'
而不是“allorder”谢谢,实际上JSON是由API团队生成的,而且android团队也使用相同的JSON,并且它正在那里工作,所以我必须使用相同的JSON。不,它和服务器上的一样。我已经仔细检查过了。好吧,那么你的后端开发人员是错的,你可以和你的android开发人员一起检查,他可能会用任何其他方式格式化这个字符串,但是这个错误的Json和错误的Json字符串
if let initial = try? Initial.init(data: data){
for item in initial.orderDetials {
print(item.orderAmount)
print(item.orderDetails) // here is Wrong format from your Server API
}
}
{'allorder':[{"date_time":"","item":"2","name":"CHICKN ROLL","price":"360"}]}{"TaxDetials":[{"tax_per":"5","tax_name":"CGST & SGST"}]}