CODEWITHSUNDEEP
javahttpclient
Geert-Jan
Geert-Jan

Reputation: 18905

java: apache HttpClient > how to disable retry

I'm using Apache Httpclient for Ajax-calls on a website. In some cases requests to external webservice fail, often with:

I/O exception (java.net.ConnectException) caught when processing request: Connection timed out: connect.

In that case, more often than not, I want to skip retrying the request (something that Httpclient seems to do automatically) .

However, I can't find any method, param, etc. to skip retrying.

anyone?

Thanks Geert-Jan

Upvotes: 31

Views: 41762

Answers (5)

jdigital
jdigital

Reputation: 12276

There's a description in the HttpClient tutorial.

 client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, 
           new DefaultHttpMethodRetryHandler());

See the tutorial for more information, for instance this may be harmful if the request has side effects (i.e. is not idempotent).

Upvotes: 5

Manoj
Manoj

Reputation: 5612

From httpclient 4.3 use HttpClientBuilder

HttpClientBuilder.create().disableAutomaticRetries().build();

Upvotes: 39

Dmitry
Dmitry

Reputation: 89

The cast to AbstractHttpClient is not necessary. Another way is to use a strategy with AutoRetryHttpClient with DefaultServiceUnavailableRetryStrategy set to 0 for retry parameter. A better way would be to extend the AbstractHttpClient or implement HttpClient to expose the desired method.

Upvotes: 0

Abhishek Tyagi
Abhishek Tyagi

Reputation: 2249

OK. There is issue in the Documentation. Also there has been change in API and methods. So if you want to use DefaultHttpRequestRetryHandler , here are the ways to do that,

DefaultHttpClient httpClient = new DefaultHttpClient();
DefaultHttpRequestRetryHandler retryHandler = new DefaultHttpRequestRetryHandler(0, false);
httpClient.setHttpRequestRetryHandler(retryHandler);

or 

HttpClient httpClient = new DefaultHttpClient();
DefaultHttpRequestRetryHandler retryHandler = new DefaultHttpRequestRetryHandler(0, false);
((AbstractHttpClient)httpClient).setHttpRequestRetryHandler(retryHandler);

In first one, we use concrete DefaultHttpClient (which is a subclass of AbstractHttpClient and so has the setHttpRequestRetryHandler() method.)

In second one, we are programming to the HttpClient interface (which sadly doesn't expose that method, and this is weird !! ehh), so we have to do that nasty cast.

Upvotes: 6

Elie
Elie

Reputation: 7363

client.setHttpRequestRetryHandler(new DefaultHttpRequestRetryHandler(0, false));

That would do it.

Upvotes: 32

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