[英]Create JSON array and JSON Object in swift
我想在Swift中做這個JSON。 但我不能這樣做....
{
"room": "Platinum",
"products": [{
"name": "Agua",
"quantity": 2
},
{
"name":"Cafe",
"quantity": 4
}],
"observation": "",
"date": "2016-08-15 12:00:00"
}
我的快速代碼返回:
{
date = "2016-08-25 18:16:28 +0000";
observation = "";
products = (
{
name = cafe;
quantity = 1;
}
);
room = Platinium;
這是我的代碼:
let para:NSMutableDictionary = NSMutableDictionary()
let prod: NSMutableDictionary = NSMutableDictionary()
para.setValue(String(receivedString), forKey: "room")
para.setValue(observationString, forKey: "observation")
para.setValue(stringDate, forKey: "date")
for product in products{
prod.setValue(product.name, forKey: "name")
prod.setValue(product.quantity, forKey: "quantity")
para.setObject([prod], forKey: "products")
}
這是我的意見:
{
name = coffe;
quantity = 2;
}
{
name = cappuccino;
quantity = 1;
}
這是輸出
{
date = "2016-08-25 18:52:30 +0000";
observation = "";
products = (
{
name = cappuccino;
quantity = 1;
}
);
room = Platinium;
}
我創建了發送兩個產品的請求,但代碼只打印最后一個產品。
創建一個新的prodArray
數組,其中包含所有prod
字典(名稱和數量。)將此prodArray設置為對應於products
鍵的para
數組。
您的代碼中出現問題: - 在您的forin循環中,您將覆蓋與"products"
鍵對應的值。
let para:NSMutableDictionary = NSMutableDictionary()
let prodArray:NSMutableArray = NSMutableArray()
para.setValue(String(receivedString), forKey: "room")
para.setValue(observationString, forKey: "observation")
para.setValue(stringDate, forKey: "date")
for product in products
{
let prod: NSMutableDictionary = NSMutableDictionary()
prod.setValue(product.name, forKey: "name")
prod.setValue(product.quantity, forKey: "quantity")
prodArray.addObject(prod)
}
para.setObject(prodArray, forKey: "products")
你需要在for循環中移動let prod: NSMutableDictionary = NSMutableDictionary()
並在for循環后移動para.setObject([prod], forKey: "products")
,但你還需要更改以便創建和添加每個prod
循環中的數組,然后在循環后將該數組添加到para
。
你當前的代碼不斷更新,而不是添加,所以最后你只有最后一個。
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