ios获取远程json数据

    NSMutableArray *arr;    arr = [[NSMutableArray alloc]init];//全局    NSURL *url = [NSURL URLWithString:@"http://a.meidebi.com/Link-alllist-p-1-pagecount-10"];//获取网络资源    NSURLRequest *request = [NSURLRequest requestWithURL:url];//建立一个请求    NSURLResponse *response = nil;    NSError *error = nil;    //网络连接转换为数据类型    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];    //用NSJSONSerialization把JSON数据解析成UI类型    id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];    NSDictionary *dic = (NSDictionary *)jsonObject;    //NSLog(@"%@",dic);    NSDictionary *dic1 = [dic valueForKey:@"data"];    NSDictionary *dic2 = [dic1 valueForKey:@"linklist"];    for (NSDictionary *dic3 in dic2) {        [arr addObject:[dic3 objectForKey:@"title"]];    }