我是 swift 语言的新手,新手问题,但我必须问,因为我的头脑对这里的字典和数组用法有点困惑,我有一个像这样的 json;
{
"MainPageLast": [
{},
{}..
],
"MainPageSport": [
{},
{}..
],
"MainPageEco": [
{},
{}..
],
"MainPagePol": [
{},
{}..
]
}
我创建了基类,其中包含所有这些数组作为字典,如下所示;
public class func modelsFromDictionaryArray(array:NSArray) -> [Json4Swift_Base]
{
var models:[Json4Swift_Base] = []
for item in array
{
models.append(Json4Swift_Base(dictionary: item as! NSDictionary)!)
}
return models
}
required public init?(dictionary: NSDictionary) {
if (dictionary["MainPageLast"] != nil) { mainPageLast = MainPageLast.modelsFromDictionaryArray(dictionary["MainPageLast"] as! NSArray) }
if (dictionary["MainPageSport"] != nil) { mainPageSport = MainPageSport.modelsFromDictionaryArray(dictionary["MainPageSport"] as! NSArray) }
if (dictionary["MainPageEco"] != nil) { mainPageEco = MainPageEco.modelsFromDictionaryArray(dictionary["MainPageEco"] as! NSArray) }
if (dictionary["MainPagePol"] != nil) { mainPagePol = MainPagePol.modelsFromDictionaryArray(dictionary["MainPagePol"] as! NSArray) }
}
public func dictionaryRepresentation() -> NSDictionary {
let dictionary = NSMutableDictionary()
return dictionary
}
我尝试获取数据并尝试解析并希望在调试屏幕中查看返回的数据;
func loadHeadline(completion : ((AnyObject) -> Void)!) {
let urlString = "http://myapiurl."
let session = NSURLSession.sharedSession()
let newsUrl = NSURL(string: urlString)
let task = session.dataTaskWithURL(newsUrl!, completionHandler: {
(data, response, error) -> Void in
do {
let jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as! Dictionary<String, AnyObject>
var models:[Json4Swift_Base] = []
for item in jsonData
{
models.append(Json4Swift_Base(dictionary: item as NSDictionary)!)
}
} catch let error as NSError{
print("Failed to load: \(error.localizedDescription)")
}
})
task.resume()
}
我知道我需要在 Json4Swift_Base 类中一一到达每个 [0]、[1]... 项,但我真的不知道如何做到。
当我尝试时抛出此异常
models.append
exc_bad_instruction (code=exc_i386_invop subcode=0x0)
现在,我应该遵循哪种方式或如何获取所有数据并将其放入其中。
谢谢你的建议..
最佳答案
let jsonData = try NSData(contentsOfFile: path, options: NSDataReadingOptions.DataReadingMappedIfSafe)
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(jsonData, options: NSJSONReadingOptions.MutableContainers) as! NSArray
if let allData = jsonResult[0] as? NSDictionary {
let header = allData.objectForKey("MainPageMansetData")
let magazine = allData.objectForKey("MainPageMagazineData")
let sports = allData.objectForKey("MainPageSportsData")
let articles = allData.objectForKey("MainPageOtherArticles")
print("\(header) \n \(magazine) \n \(sports) \n \(articles)")
}
} catch {}
关于ios - 如何在 Swift 中解析具有多个数组的 JSON,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38826733/