iOS5 自带json使用

    NSArray *valueArray = [@"val1 val2 val3" componentsSeparatedByString:@" "];

 

    NSMutableDictionary *dict = [NSMutableDictionary dictionary];

    for (NSString *each in [@"KeyA KeyB KeyC" componentsSeparatedByString:@" "])

        [dict setObject:valueArray forKey:each];

 

    if ([NSJSONSerialization isValidJSONObject:dict])

    {

        NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:nil];

        NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

        [self log:@"Result: %@", result];

    }

 

 

 

打印结果

Result: {"KeyA":["val1","val2","val3"],"KeyC":["val1","val2","val3"],"KeyB":["val1","val2","val3"]}