// JSon
let jsonString = "{\"menu\": {" +
"\"id\": \"file\"," +
"\"value\": \"File\"," +
"\"popup\": {" +
"\"menuitem\": [" +
"{\"value\": \"New\", \"onclick\": \"CreateNewDoc()\"}," +
"{\"value\": \"Open\", \"onclick\": \"OpenDoc()\"}," +
"{\"value\": \"Close\", \"onclick\": \"CloseDoc()\"}" +
"]" +
"}" +
"}}"
let json: Any = try! JSONSerialization.jsonObject(
with: jsonString.data(using: .utf8, allowLossyConversion: true)!,
options: [])
if let jsonDic = json as? NSDictionary {
if let menu = jsonDic["menu"] as? [String: AnyObject] {
if let popup: AnyObject = menu["popup"] {
if let popupDic = popup as? [String: AnyObject] {
if let menuItems: AnyObject = popupDic["menuitem"] {
if let menuItemsArr = menuItems as? [AnyObject] {
if let item0 = menuItemsArr[0]
as? [String: AnyObject] {
if let value: AnyObject = item0["value"] {
print(value)
}
}
}
}
}
}
}
}
if let jsonDic = json as? NSDictionary,
let menu = jsonDic["menu"] as? [String: AnyObject],
let popup = menu["popup"],
let popupDic = popup as? [String: AnyObject],
let menuItems = popupDic["menuitem"],
let menuItemsArr = menuItems as? [AnyObject],
let item0 = menuItemsArr[0] as? [String: AnyObject],
let value = item0["value"]
{
print(value)
}
// 这个使用了 SwiftJson, 类似的框架还有 json-swift
/*
https://github.com/SwiftyJSON/SwiftyJSON
https://github.com/owensd/json-swift
*/
if let value = JSON(json)["menu"]["popup"]["menuitem"][0]["value"].string {
print(value)
}
