iOS - 在Swift中使用NSJSONSerialization解析JSON字典

问题描述

我正在使用我的REST Web服务来获取我想要的JSON数据，这可以按预期工作并打印：

i am using my REST Webservice to get the JSON Data i want, this works as intended and prints:

 [{
    "name": "Event1",
    "genre": "Party",
    "subtitle": "subtitle1",
    "startDate": "2015-10-10",
    "location": "Anywhere"
  },
  {
    "name": "Event2",
    "genre": "Party",
    "subtitle": "subtitle2",
    "startDate": "2015-10-10",
    "location": "Anywhere"
  }]

所以这似乎是一个包含2个元素的数组，它们是字典。

So this seems to be an Array with 2 Elements which are Dictionaries.

然后我尝试使用NSJSONSerialization解析JSON。

I then tried to parse the JSON with NSJSONSerialization.

let data = str.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)

        do {
            let json = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as! [String: AnyObject]

            if let name = json["name"] as? [String]{
                print(name)
            }
        } catch let error as NSError {
            print("Failed to load: \(error.localizedDescription)")
        }

我收到此错误：

Could not cast value of type '__NSCFArray' (0x1096c1ae0) to 'NSDictionary' (0x1096c1d60).

这对我来说似乎很清楚，但我只是不知道如何解决它。

which seems pretty clear to me, but i just don't know how to solve it.

我的目标是从我自己的班级创建事件对象。

My goal would be to create "Event" Objects from my own class.

推荐答案

反序列化的结果将是一个数组：

The result of the deserialization will be an array:

let data = str.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)

do {
    let dataArray = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as! NSArray

    for event in dataArray {
        print(event)
    }

} catch let error as NSError {
    print("Failed to load: \(error.localizedDescription)")
}

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