arrays - 如何在 Swift 中访问括号中的嵌套 JSON？

Question

我有一个括号中的 JSON 响应，我很难访问内部字段，例如使用 Swift 显示名称。我该怎么做？

Optional(["result": {
user =     {
    "display_name" = "Max Test";
    email = "test.max@gmail.com";
    "fb_id" = 10209982554704497;
    roles =         (
        stu
    );
    schools = "<null>";
};
}])

我用来访问 JSON 的代码:

 self.restApi.getProfileDetails() {responseObject, error in

        //parse down the first layer of array
        let response = responseObject as? [String:AnyObject]
        print("response object when MyDetailsController opened")
        print(response)

        let result = response!["result"]  as? [AnyObject]
        print("result object")
        print(result)

        //parse down the second layer of JSON object
        if let result = response!["result"]  as? [AnyObject] {

            print("result object when MyDetailsController opened")
            // work with the content of "result", for example:
            if let user = result[0] as? [String:AnyObject]{
                print(user)

                let displayName = user["display_name"]
                print("displayName")
                print(displayName)

             }
    }

似乎我以错误的方式处理结果，因为它始终为零:

控制台输出:

result object
nil

Answer 1

响应结果是dictionary不是array，尝试这样获取

let result = response!["result"]  as? [String:AnyObject]