如何将json字符串解析为nsdictionary？

Question

我正在编写登录应用程序的代码.任何人都可以帮我解析如何解析json字符串？我的代码是

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{

    NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];

    SBJsonParser *parser = [[SBJsonParser alloc] init];

    NSArray *loginDict = [parser objectWithString:loginDict error:nil];

    [loginStatus release];

    [connection release];

Answer 1

示例数据:

NSString *strData = @"{\"1\": {\"name\": \"Jerry\",\"age\": \"12\"}, \"2\": {\"name\": \"Bob\",\"age\": \"16\"}}";
NSData *webData = [strData dataUsingEncoding:NSUTF8StringEncoding];

NSError *error;
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:webData options:0 error:&error];
NSLog(@"JSON DIct: %@", jsonDict);

NSLog输出:

JSON DIct: {
     1 =     {
         age = 12;
         name = Jerry;
     };
     2 =     {
         age = 16;
         name = Bob;
     };
}