1 | // null = online, Throwable = offline |
2 | public static Throwable checkIfHttpServerIsOnline(String serverName) { |
3 | try { |
4 | String url = serverName.startsWith("http") ? serverName : "http://" + serverName + "/"; |
5 | //HttpURLConnection.setFollowRedirects(false); |
6 | // note : you may also need |
7 | // HttpURLConnection.setInstanceFollowRedirects(false) |
8 | HttpURLConnection con = |
9 | (HttpURLConnection) new URL(url).openConnection(); |
10 | con.setRequestMethod("HEAD"); |
11 | int responseCode = con.getResponseCode(); |
12 | //print("Response code for " + url + ": " + responseCode); |
13 | // If we came this far, assume server is online. |
14 | return null; |
15 | //return (con.getResponseCode() == HttpURLConnection.HTTP_OK); |
16 | } |
17 | catch (Exception e) { |
18 | return e; |
19 | } |
20 | } |
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Snippet ID: | #1001114 |
Snippet name: | checkIfHttpServerIsOnline |
Eternal ID of this version: | #1001114/1 |
Text MD5: | d4fd9e46fdbd0440578dedf0f9d31c07 |
Author: | stefan |
Category: | javax |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2015-09-22 18:04:28 |
Source code size: | 833 bytes / 20 lines |
Pitched / IR pitched: | No / Yes |
Views / Downloads: | 683 / 904 |
Referenced in: | [show references] |