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访问JSON数据时,我有以下的JSON数据试图目标C解析 - 我的代码将返回空值,为下级对象的值 - 用户ID,名字和姓氏获取空值从目标C
完整的JSON是:
{
"members" :
[
{"member" : {"userid":"1","FirstName":"ramesh","LastName":"babu"}},
{"member" : {"userid":"2","FirstName":"ramesh2","LastName":"babu2"}},
{"member" : {"userid":"3","FirstName":"ramesh3","LastName":"babu3"}}
]
}
我的代码是:
- (void)viewDidLoad
{
[super viewDidLoad];
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL: kLatestKivaLoansURL];
[self performSelectorOnMainThread:@selector(fetchedData:) withObject:data waitUntilDone:YES];
});
}
- (void)fetchedData:(NSData *)responseData {
//parse out the json data
NSError* error;
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseData //1
options:kNilOptions
error:&error];
NSArray* members = [json objectForKey:@"members"]; //2
NSString *text1 = [json description];
jsonSummary.text = text1;
NSEnumerator *e = [members objectEnumerator];
NSArray *keys = [NSArray arrayWithObjects:@"userid", @"FirstName", @"LastName", nil];
NSDictionary * member;
while (member = (NSDictionary *)[e nextObject]) {
// do something with object
// Iterate it
text1 = [member description];
NSLog(@"MEMBER ROW DATA%@", text1);
for (id key in keys) {
text1 = [member description];
NSLog(@"key: %@ value:%@ ", key, [member objectForKey:key]);
}
}
}
任何帮助,将不胜感激!
安娜,谢谢,我得到了关键值,发现成员dictionar y里面有'member'对象。以下是有效的代码。 –