jesonModel 的简单使用

这里给出了大致的思路 只是个基础 大家还要多使用 这个库需要自己下载并引入 即可使用#import "ViewController.h"#import "itemModel.h"@interface ViewController ()/** *      NSString* urlStr1 = @"http://iappfree.candou.com:8080/free/applications/limited?currency=rmb&page=3"; */@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        NSString* urlStr = @"http://iappfree.candou.com:8080/free/applications/limited?currency=rmb&page=3";        NSURL *url = [NSURL URLWithString:urlStr];        [self downloadTask:url];        // Do any additional setup after loading the view, typically from a nib.}-(void)downloadTask:(NSURL *)url{    NSURLRequest *request = [NSURLRequest requestWithURL:url];    NSURLSession *session = [NSURLSession sharedSession];    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {        //取到最外层字典        NSDictionary *dictjeson = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];        //取到字典里面的applications 数据        NSArray *applications = [dictjeson objectForKey:@"applications"];        for(NSDictionary *dict in applications)        {            itemModel *item = [[itemModel alloc]initWithDictionary:dict error:nil];            NSLog(@"item:%@",item);            NSLog(@"%@",item.toJSONString);        }    }];    //任务执行    [dataTask resume];    NSString *json = @"{\"applicationId\": \"757752585\",\"slug\": \"puzzle-chef\",\"name\": \"美味厨房\",\"releaseDate\": \"2014-09-17\",\"version\": \"1.3.0\"}";        //能够自动检测key 的正确性    itemModel *model = [[itemModel alloc]initWithString:json usingEncoding:NSUTF8StringEncoding error:nil];        NSLog(@"------------model-------------%@",model);}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end