ios文件下载

+(void)download:(NSString *)strOfURL andMusicName:(NSString *)musicName

{

    NSString *strOfURL = [NSString stringWithFormat:@"%@",strOfURL];

    NSURL    *URL = [NSURL URLWithString:strOfURL];

    NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    NSError *error = nil;

    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&error];

    

    /* 下载的数据 */

    if (data != nil)

    {

        NSLog(@"下载成功");
        /*存放路径*/

        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);

        NSString *path=[[paths objectAtIndex:0] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.mp3",musicName]];

        

        if ([data writeToFile:path atomically:YES])

        {

            NSLog(@"保存成功.");

        }

        else

        {

            NSLog(@"保存失败.");

        }

    }

    else

    {

        NSLog(@"%@", error);

    }

}