系统自带的NSJSONSerialization解析json文件

 #import "ViewController.h"
 #import "Student.h"
 #import "GDataXMLNode.h"
 #import "JSONKit.h"

 @interface ViewController () <NSXMLParserDelegate>

 /**
  *  存储数据的数组
  */
 @property (nonatomic, strong) NSMutableArray *dataArray;

 @end

 @implementation ViewController

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

 #pragma mark - 系统自带的json数据解析
 - (IBAction)foundationParserActionJSONDocument:(UIButton *)sender {

     // 1.获取文件路径
     NSString *path = [[NSBundle mainBundle] pathForResource:@"StudentInfo_json.txt" ofType:nil];

     // 2.根据路径获取NSData
     NSData *data = [NSData dataWithContentsOfFile:path];

     // 3.对存储数据的数组进行初始化
     self.dataArray = [NSMutableArray array];

     // 4.开始进行解析
     NSArray *resultArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];

     // 5.遍历数组，使用KVC给对象赋值
     for (NSDictionary *dict in resultArray) {

         Student *stu = [[Student alloc] init];

         // 将数组中的值赋给对象
         [stu setValuesForKeysWithDictionary:dict];

         // 将对象添加到数组中
         [self.dataArray addObject:stu];
     }

     // 遍历检验
     for (Student *stu in self.dataArray) {
         NSLog(@"name = %@, gender = %@, age = %ld, hobby = %@", stu.name, stu.gender, stu.age, stu.hobby);
     }

 }

 @end