相關的第三方類庫大家可以去github上下載

1.NSJSONSerialization

具體代碼如下 ：

- (void)viewDidLoad {
    [super viewDidLoad];
    NSData *data1=[NSData dataWithContentsOfFile:[[NSBundle mainBundle]pathForResource:@"test" ofType:@"json"]];
    
    //1.系統提供的json解析方法
    NSLog(@"%@",data1);
    __autoreleasing NSError *err;
      NSDictionary *dic=[NSJSONSerialization JSONObjectWithData:data1 options:NSJSONReadingMutableLeaves error:&err];
    NSLog(@"%@",dic[@"user"][@"location"]);
    NSLog(@"%@",dic);
}

 2.JSONKit 這是需要導入第三方類庫

 [super viewDidLoad];
    
    NSString *path=[[NSBundle mainBundle]pathForResource:@"sina.json" ofType:nil];
    
    NSData *data=[NSData dataWithContentsOfFile:path];
    
    
    __autoreleasing NSError *err;
    
    NSDictionary *dic=[data objectFromJSONDataWithParseOptions:JKParseOptionNone error:&err];
    
    NSLog(@"%@",dic[@"user"][@"location"]);

3.SBJson 同樣需要導入第三方類庫

- (void)viewDidLoad {
    [super viewDidLoad];
    NSString *path=[[NSBundle mainBundle]pathForResource:@"sina.json" ofType:nil];
    NSData *data=[NSData dataWithContentsOfFile:path];
    
    
    
    SBJsonParser *jsonParser=[[SBJsonParser alloc]init];
    

    NSMutableDictionary *dic=[jsonParser  objectWithData:data];

    NSLog(@"%@",dic);
    
}

 4.TouchJson 第三方類庫

- (void)viewDidLoad {
    [super viewDidLoad];
    
    NSString *path=[[NSBundle mainBundle]pathForResource:@"sina" ofType:@"json"];
    
    NSData *data=[NSData dataWithContentsOfFile:path];
 
    NSDictionary *dic=[[CJSONDeserializer deserializer] deserialize:data error:nil];
    
    NSLog(@"%@",dic);
    
}