系统自带JSON解析

手写JSON

{
    "武侠":[
          {"MovieName":"叶问","MovieAuthor":"甄子丹","MoiveContent":"动作"},
          {"MovieName":"道士下山","MovieAuthor":"王宝强","MoiveContent":"动作"}
          ],
    
    "科幻":[
          {"MovieName":"长江七号","MovieAuthor":"周星驰","MoiveContent":"一件神奇的事情"}
          ],
    
    "爱情":[
          {"MovieName":"傲慢与偏见","MovieAuthor":"迪丽热巴","MoiveContent":"爱情"},
          {"MovieName":"分手合约","MovieAuthor":"彭于晏","MoiveContent":"爱情"},
          {"MovieName":"匆匆那年","MovieAuthor":"倪妮","MoiveContent":"爱情"}
          ]
    
}

#import "ViewController.h"

@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>{
    NSDictionary *dic;
    UITableView *table;
}

@end
#define STUDENT_URL @"http://127.0.0.1/Movie.json"
@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    NSURL *url = [NSURL URLWithString:STUDENT_URL];
    
    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:5];
    
    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    //系统自带的json解析
    dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
    NSLog(@"=======%@",dic);
    table = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStyleGrouped];
    table.dataSource = self;
    table.delegate = self;
    [self.view addSubview:table];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return dic.count;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    NSString *key = [dic.allKeys objectAtIndex:section];
    return [dic[key] count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    NSString *cellId = @"cellid";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellId];
    }
    
    NSString *key = [dic.allKeys objectAtIndex:indexPath.section];
    
    cell.textLabel.text =[[dic[key] objectAtIndex:indexPath.row] objectForKey:@"MovieName"];
    cell.detailTextLabel.text =[[dic[key] objectAtIndex:indexPath.row] objectForKey:@"MovieAuthor"];
    
    return cell;
    
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
    return [dic.allKeys objectAtIndex:section];
}

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


@end