我的代码如下,从url下载xml内容,这需要花费更多时间在wifi网络下载,我的xml只有29.2kb。我使用AsyncTask来做到这一点。从URL下载xml作为Inputstream的最佳方式
InputStream getInputStreamForUrl(String url) {
BufferedHttpEntity bufferedEntity = null;
InputStream is = null;
try {
bufferedEntity = download(url);
if (bufferedEntity != null) {
is = bufferedEntity.getContent();
if (is != null) {
BufferedReader feedReader = new BufferedReader(new InputStreamReader(is, Utility.UTF_ENCODING),
16 * 1024);
Utility.cacheFeed(feedReader, url);
}
}
} catch (NetworkNotAccessable e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (bufferedEntity != null) {
bufferedEntity.consumeContent();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return (url != null) ? Utility.getInputStreamForCache(url) : null;
}
下载(网址)方法即时通讯使用HTTPGET请求如下:
public BufferedHttpEntity download(String url)
throws ClientProtocolException, IOException,
IllegalStateException, NetworkNotAccessable {
HttpGet get = new HttpGet(url);
HttpResponse response = mDefaultHttpClient.execute(get);
int status = response.getStatusLine().getStatusCode();
if (status != 200) {
throw new NetworkNotAccessable(url + "error code:" + status);
}
HttpEntity entity = response.getEntity();
BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity);
while (bufHttpEntity.isStreaming()) {
try {
bufHttpEntity.wait(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
return bufHttpEntity;
}
请让我知道有没有拉上拉链整个网址并下载任何最好的方式。
请地方Utility.cacheFeed和Utility.getInputStreamForCache(URL)的代码 – 2013-03-22 10:33:07
如果您能够更改服务器代码,请[gzip](http://en.wikipedia.org/wiki/Gzip)xml响应,并在您的客户端使用[AndroidHttpClient](http://developer.android .com/reference/android/net/http/AndroidHttpClient.html)。这是我如何尽量减少下载时间。 – hgoz 2013-03-22 10:38:42
@user_CC Utility.cacheFeed和Utility.getInputStreamForCache(url)是用于缓存Bufferreader并将url作为键的方法,并通过提供url来获取InputStream。我将在下载Inputstream之后更新本地chche。下载(String url)是正在发生下载的方法。 – Adi 2013-03-22 12:03:09