ios - 无法从没有 ios 键的 Json 中获取值

Question

[
    {
        "Id": 52,
        "Name": "name1",
        "author": "john"
    },
    {
        "Id": 53,
        "Name": "name2",
        "author": "jacob"
    },
    {
        "Id": 54,
        "Name": "name3",
        "author": "jobin"
    }
]

我使用下面的代码来获取和解析这个没有主键的json数组

SBJsonParser *parser1 = [[SBJsonParser alloc] init];
   NSURLRequest *request1 = [NSURLRequest requestWithURL:[NSURL URLWithString:str2]];
    // Perform request and get JSON back as a NSData object
    NSData *response1 = [NSURLConnection sendSynchronousRequest:request1 returningResponse:nil error:nil];
    NSError *error;
   NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:response1 options:kNilOptions error:&error];

但是我得到以下异常

data parameter is nil 

此代码发生此异常

NSData *response1 = [NSURLConnection sendSynchronousRequest:request1 returningResponse:nil error:nil];

如何迭代id值？

Answer 1

这里有一组 JSON 文件，所以我会:

NSArray *jsonArray = ; //your JSON

for (NSDictionary *dict in jsonArray) {
    NSInteger number = [dict[@"Id"] intValue];
    NSString *name = dict[@"Name"];
    NSString *author = dict[@"author"];
}