Databases
StackOverflow2013
Postsdbo
POHttp Post and network delay
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHttp Post and network delay
    primarykey
    data
    text
    <p>I need to make about 15 calls to diferent web services (php) at the application startup.</p> <p>I'm using the following code for the post</p> <pre><code>public static String post(String url, List&lt;BasicNameValuePair&gt; postvalues, HttpClient httpclient) { try { if (httpclient == null) { httpclient = new DefaultHttpClient(); } HttpPost httppost = new HttpPost(url); if ((postvalues == null)) { postvalues = new ArrayList&lt;BasicNameValuePair&gt;(); } httppost.setEntity(new UrlEncodedFormEntity(postvalues, "UTF-8")); // Execute HTTP Post Request HttpResponse response = httpclient.execute(httppost); return requestToString(response); } catch (Exception e) { e.printStackTrace(); return null; } } private static String requestToString(HttpResponse response) { String result = ""; try { InputStream in = response.getEntity().getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(in)); StringBuilder str = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { str.append(line + "\n"); } in.close(); result = str.toString(); } catch (Exception ex) { result = "Error"; } return result; } </code></pre> <p>The problem is that some of the petitions must be requested in a given order and each request takes about 1-2 second so the "Loading splash" takes about 10 seconds.</p> <p>So my question is:Since all the connections are to the same server, how can I improve this delay? Is there some way of open a connection and send all the petitions through that "tunnel" reducing the delay?</p> <p>NOTE: I tested the code and the requests take the same time reusing the httpclient using a new one in each connection</p> <p>Thanks</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USAddev
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COIf you can't parallelize the calls, then you need to find where the bottlenecks are, and remove them. We cannot tell you where they are; you must measure. Is it network I/O? Is the PHP web service itself slow? Why can't you use a "better" web service that does not require so many individual calls?
      singulars
      1. POHttp Post and network delay
      1. USMatt Ball
    2. CODo you control the server implementation as well? Then you could combine the services under one (or few) requests. Also, is the 1-2 second reply time inherent slowness of the service or network latency?
      singulars
      1. POHttp Post and network delay
      1. USjhonkola
    3. COI suggest you replace your `requestToString()` method by `EntityUtils.toString(response.getEntity())` -- it's less code, has better error handling and actually obeys the character encoding sent by the server.
      singulars
      1. POHttp Post and network delay
      1. USPhilipp Reichart
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload