ASIHTTPRequest 缓存+下载文件到本地

//路径

-(NSString*) pathToCachedResponseDataForStr:(NSString*)aStr{

NSURL *url = [NSURL URLWithString:aStr];

NSString *temCa = [[ASIDownloadCache sharedCache]pathToCachedResponseDataForURL:url];

#if DEBUG_LOG

NSLog(@"temCa: %@\n",temCa);

#endif

return temCa;

}

//下载文件

-(void)requestDataWithStr:(NSString*)aStr{

NSURL *url = [NSURL URLWithString:aStr];

ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];

[request setCacheStoragePolicy:ASICachePermanentlyCacheStoragePolicy];

[[ASIDownloadCache sharedCache] setShouldRespectCacheControlHeaders:NO];

[request setSecondsToCache:60*60*24*30];

[request setDownloadDestinationPath:

[[ASIDownloadCache sharedCache] pathToStoreCachedResponseDataForRequest:request]];

[request startAsynchronous];

}