////  LWTViewController.m//  网络编程练习 -- NSURLCache////  Created by apple on 14-7-2.//  Copyright (c) 2014年 lwt. All rights reserved.//#import "LWTViewController.h"@interface LWTViewController ()@end@implementation LWTViewController- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSURL *url = [NSURL URLWithString:@"http://192.168.1.24:8080/MJServer/resources/video"];    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];        NSURLCache *cache = [NSURLCache sharedURLCache];    cache.memoryCapacity = 1024 * 1024;    cache.diskCapacity = 10 * 1024 * 1024;    request.cachePolicy = NSURLRequestReturnCacheDataElseLoad;        NSCachedURLResponse *response = [cache cachedResponseForRequest:request];    if (response) {        NSLog(@"---这个请求已经存在缓存");    } else {        NSLog(@"---这个请求没有缓存");    }        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {        NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];        NSLog(@"%@",dict);    }];        }@end