Ios 字符串转换为字典

我有一个字符串格式的JSON

 {
    abstract = "Today P.M of India Mr. Narender Modi visited for the eve of Agarasen \njayanti
\n";
    created = 1444733102;
    imgUrl = "";
    nid = 12;
    title = "Latest news";
}

我想转换成一本字典

NSError *jsonError;
NSData *objectData = [[[tableDataArray objectAtIndex:indexPath.row]objectForKey:@"NewsValue"] dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:objectData options:NSJSONReadingMutableContainers error:&jsonError];
NSLog(@"%@",json);

---

他们给出的响应为空，请帮助。

这已经存在于字典格式的Json数据中

所以你不需要转换。只需检索数据

NSString * abstract = [Dic valueForKey:@"abstract"];

---

请使用下面的代码

NSData*objectData=[[tableDataArray objectAtIndex:indexPath.row]objectForKey:@“NewsValue”] NSString*strresponse=[[NSString alloc]对象数据编码：NSUTF8StringEncoding]

NSMutableDictionary *dictResponse = [NSJSONSerialization JSONObjectWithData:[strResponce dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableLeaves error:&error];

if（[dictResponse IsKindof类：[NSMutableDictionary类]]）{

NSString*abstractStr=[dictResponse valueForKey:@“abstract”]

---

}

它来自何处？web服务如果我将您的“字符串”复制/粘贴到JSON验证器中，则不正确。您从何处获得它？它似乎已经是NSDictionary格式。请检查jsonError给出的内容，并检查objectData是否为空