JSONKit解析

#import "ViewController.h"
#import "JSONKit.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

NSString *urlString = @"https://api.douban.com/v2/book/search?q=s";

[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]] queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

//json解析
NSDictionary *dic = [data objectFromJSONData];

#if 0
NSString *string ;

//json解析
[string objectFromJSONString];
#endif

NSLog(@"%@",dic[@"total"]);
}];

/*
username : "test"
password : "xxx"
other : {"key1":"value1","key2":["test","test2"]}
*/

NSDictionary *dic = @{
@"key1":@"value1",
@"key2":@[@"test",@"test2"]
};

//提交到服务器的是json字符串
//系统把对象(NSArray,NSDic)转化为json字符串
NSData *data = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:nil];
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

/*
TestString:NSString

TestString *s;
*/

//判断string是否是NSString类或者其子类
if ([string isKindOfClass:[NSString class]])
{
NSLog(@"YES");
}

//判断string是否是NSString类。不包括子类
[string isMemberOfClass:[NSString class]];

NSLog(@"--- %@",string);

#if 0
/*
在运行的时候和编译的时候data3是什么类型;
编译是NSData;
运行是NSString
*/
NSData *data3 = [[NSString alloc] init];

[data3 isEqualToData:[NSData data]];
#endif

}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end