如何在 Android 服务中 ping 一个 URL？
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How to ping a URL in an Android Service?
提问by Chris
How can I use Android Service to do a ping callback? I need to open a webpage on a button click, but in the background, go ping another URL for stats collection.
如何使用 Android Service 进行 ping 回调？我需要单击按钮打开一个网页，但在后台，去 ping 另一个用于统计数据收集的 URL。
回答by Sephy
I think if you just want to ping an url, you can use this code :
我想如果你只是想 ping 一个 url，你可以使用这个代码：
try {
URL url = new URL("http://"+params[0]);
HttpURLConnection urlc = (HttpURLConnection) url.openConnection();
urlc.setRequestProperty("User-Agent", "Android Application:"+Z.APP_VERSION);
urlc.setRequestProperty("Connection", "close");
urlc.setConnectTimeout(1000 * 30); // mTimeout is in seconds
urlc.connect();
if (urlc.getResponseCode() == 200) {
Main.Log("getResponseCode == 200");
return new Boolean(true);
}
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
And, if you want to have the equivalent of a ping, you can put a System.currentTimeMillis() before and after the call, and calculate the difference.
并且，如果你想要一个 ping 的等价物，你可以在调用前后放置一个 System.currentTimeMillis()，并计算差异。
hopes that helps
希望有帮助
code snippet found in here
在这里找到的代码片段
