在iOS中，如何将JSON字符串解析为对象

问题描述：

我来自Android开发人员，很抱歉，如果我在这里缺少明显的iOS概念。

I come from Android dev, so sorry if I'm missing obvious iOS concepts here.

我有一个看起来像这样的JSON Feed：

I have a JSON feed that looks like:

{directory：[{id：0，fName：...，lName：...，标题： ...... 部门： ... BLD ： ... 房间： ... 电子邮件： ...... 手机： ... }，{ ID ：1，其中 fname ： ... L-NAME ： ... 称号： ... 部门： ... BLD ： ... 房间： ... 电子邮件： ... 手机： ...}]}

然后，我有一个Staff.h和.m，其中一个类具有与之匹配的属性（id，fName，lName）等。

Then, I have a Staff.h and .m with a class with properties to match it (id, fName, lName) ect.

我一直在这工作几个小时，但我似乎无法将JSON字符串解析为Staff对象数组。最终目标是让他们进入Core Data，所以任何建议都会很好。

I've been working at this for hours, but I can't seem to parse the JSON string to an array of Staff objects. The end goal is to get them into Core Data, so any advice would be nice.

我读过的教程没有展示如何使用JSON字符串{目录的形式：[{...}]}我在Android应用程序中执行此操作没有任何问题，但我在Objective-c中对iOS（6）的想法不合适。

Tutorials I've read haven't shown how to work with a JSON string in the form of {"directory":[{...}]} I had no problem doing this in my Android app, but I'm out of ideas here for iOS (6) in objective-c.

感谢阅读。

答

你可以这样做

NSDictionary *json = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:&error];//response object is your response from server as NSData

if ([json isKindOfClass:[NSDictionary class]]){ //Added instrospection as suggested in comment.
    NSArray *yourStaffDictionaryArray = json[@"directory"];
    if ([yourStaffDictionaryArray isKindOfClass:[NSArray class]]){//Added instrospection as suggested in comment.
        for (NSDictionary *dictionary in yourStaffDictionaryArray) {
            Staff *staff = [[Staff alloc] init];
            staff.id = [[dictionary objectForKey:@"id"] integerValue];
            staff.fname = [dictionary objectForKey:@"fName"];
            staff.lname = [dictionary objectForKey:@"lName"]; 
            //Do this for all property
            [yourArray addObject:staff];
        }
    }
}

在iOS中，如何将JSON字符串解析为对象

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