怎么做到提前缓存啊？

[fujiangren]

[dolwin]

  public static  void preCache(Executor executor, final HttpProxyCacheServer proxy, final String originUrl){
        executor.execute(new Runnable() {
            @Override
            public void run() {
                try {
                    InputStream inputStream = null;
                    URL url = new URL(proxy.getProxyUrl(originUrl));
                    inputStream = url.openStream();
                    int bufferSize = 1024;
                    byte[] buffer = new byte[bufferSize];
                    int length = 0;
                    while ((length = inputStream.read(buffer)) != -1) {
                        //Since we just need to kick start the prefetching, dont need to do anything here
                        //  or we can use ByteArrayOutputStream to write down the data to disk
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });
    }

[annybudong]

读完不关闭流么？