NSURLConnection sendSynchronousRequest设置缓存策略的委托

Question

对于iOS 5.0和arc，我需要确保NSURLConnection sendSynchronousRequest不会缓存响应数据。如何设置委托以便我可以实现以下方法

- (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse 

Answer 1

尝试

    [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:URL]
                          cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData
                      timeoutInterval:60.0];