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PODefaultHttpClient - Avoiding multiple Attempts to execute request
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Here's the code I am using to send a post request to a web service : <pre><code> HttpParams httpParameters = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(httpParameters,15000); HttpConnectionParams.setSoTimeout(httpParameters, 15000); DefaultHttpClient client = new DefaultHttpClient(); client.getCredentialsProvider().setCredentials( new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM, AuthPolicy.BASIC), new UsernamePasswordCredentials(getUsernamePassword())); //getUserNamePassword is helper method i have defined ResponseHandler<String> responseHandler = new BasicResponseHandler(); try{ String httpResponse = client.execute(request,responseHandler); return httpResponse; } catch(Exception e){ //handle } finally{ client.getConnectionManager().shutdown(); } </code></pre> And this is the http log: <pre><code>DEBUG 2013-03-28 16:22:00,627 org.apache.http.impl.conn.BasicClientConnectionManager - Get connection for route {}->http://jboss-stage.framework.abc.com DEBUG 2013-03-28 16:22:00,658 org.apache.http.impl.conn.DefaultClientConnectionOperator - Connecting to jboss-stage.framework.abc.com:80 DEBUG 2013-03-28 16:22:01,157 org.apache.http.client.protocol.RequestAddCookies - CookieSpec selected: best-match DEBUG 2013-03-28 16:22:01,173 org.apache.http.client.protocol.RequestAuthCache - Auth cache not set in the context DEBUG 2013-03-28 16:22:01,173 org.apache.http.client.protocol.RequestTargetAuthentication - Target auth state: UNCHALLENGED DEBUG 2013-03-28 16:22:01,173 org.apache.http.client.protocol.RequestProxyAuthentication - Proxy auth state: UNCHALLENGED DEBUG 2013-03-28 16:22:01,173 org.apache.http.impl.client.DefaultHttpClient - Attempt 1 to execute request DEBUG 2013-03-28 16:22:01,173 org.apache.http.impl.conn.DefaultClientConnection - Sending request: POST /Contactus/contactus/ HTTP/1.1 DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "POST /Contactus/contactus/ HTTP/1.1[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "Debug: True[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "SiteId: 111[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "Content-Type: application/x-www-form-urlencoded[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "Content-Length: 692[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "Host: jboss-stage.framework.abc.com[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "Connection: Keep-Alive[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "User-Agent: Apache-HttpClient/4.2.3 (java 1.5)[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "[\r][\n]" DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> POST /Contactus/contactus/ HTTP/1.1 DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> Debug: True DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> SiteId: 111 DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> Content-Type: application/x-www-form-urlencoded DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> Content-Length: 692 DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> Host: jboss-stage.framework.abc.com DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> Connection: Keep-Alive DEBUG 2013-03-28 16:22:01,173 org.apache.http.headers - >> User-Agent: Apache-HttpClient/4.2.3 (java 1.5) DEBUG 2013-03-28 16:22:01,173 org.apache.http.wire - >> "ServiceReq={"ContactUs":{"ContactInfo":[{"FieldName":"gender","FieldValue":"F","IsEncrypted":false,"EncryptedValue":false}],"StatusCode":"New","Subject_id":"123"}}" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "HTTP/1.1 401 Unauthorized[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Server: Apache-Coyote/1.1[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "X-Powered-By: Servlet 2.4; JBoss-4.2.3.GA (build: SVNTag=JBoss_4_2_3_GA date=200807181417)/JBossWeb-2.0[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Date: Thu, 28 Mar 2013 10:52:08 GMT[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "WWW-Authenticate: Basic realm="Contactus"[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Accept-Ranges: bytes[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Server: Noelios-Restlet-Engine/1.1.5[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Content-Type: text/html;charset=ISO-8859-1[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "Content-Length: 312[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.wire - << "[\r][\n]" DEBUG 2013-03-28 16:22:02,327 org.apache.http.impl.conn.DefaultClientConnection - Receiving response: HTTP/1.1 401 Unauthorized DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << HTTP/1.1 401 Unauthorized DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Server: Apache-Coyote/1.1 DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << X-Powered-By: Servlet 2.4; JBoss-4.2.3.GA (build: SVNTag=JBoss_4_2_3_GA date=200807181417)/JBossWeb-2.0 DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Date: Thu, 28 Mar 2013 10:52:08 GMT DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << WWW-Authenticate: Basic realm="Contactus" DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Accept-Ranges: bytes DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Server: Noelios-Restlet-Engine/1.1.5 DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Content-Type: text/html;charset=ISO-8859-1 DEBUG 2013-03-28 16:22:02,327 org.apache.http.headers - << Content-Length: 312 DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.DefaultHttpClient - Connection can be kept alive indefinitely DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.DefaultHttpClient - Authentication required DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.DefaultHttpClient - jboss-stage.framework.abc.com:80 requested authentication DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.TargetAuthenticationStrategy - Authentication schemes in the order of preference: [negotiate, Kerberos, NTLM, Digest, Basic] DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.TargetAuthenticationStrategy - Challenge for negotiate authentication scheme not available DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.TargetAuthenticationStrategy - Challenge for Kerberos authentication scheme not available DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.TargetAuthenticationStrategy - Challenge for NTLM authentication scheme not available DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.TargetAuthenticationStrategy - Challenge for Digest authentication scheme not available DEBUG 2013-03-28 16:22:02,343 org.apache.http.impl.client.DefaultHttpClient - Selected authentication options: [BASIC] DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "<html>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "<head>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << " <title>Status page</title>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "</head>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "<body>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "<h3>The request requires user authentication</h3>You can get technical details <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.2">here</a>. [\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "Please continue your visit at our <a href="/">home page</a>.[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "</body>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.wire - << "</html>[\n]" DEBUG 2013-03-28 16:22:02,343 org.apache.http.client.protocol.RequestAddCookies - CookieSpec selected: best-match DEBUG 2013-03-28 16:22:02,343 org.apache.http.client.protocol.RequestAuthCache - Auth cache not set in the context DEBUG 2013-03-28 16:22:02,343 org.apache.http.client.protocol.RequestTargetAuthentication - Target auth state: CHALLENGED DEBUG 2013-03-28 16:22:02,343 org.apache.http.client.protocol.RequestTargetAuthentication - Generating response to an authentication challenge using basic scheme DEBUG 2013-03-28 16:22:02,359 org.apache.http.client.protocol.RequestProxyAuthentication - Proxy auth state: UNCHALLENGED DEBUG 2013-03-28 16:22:02,359 org.apache.http.impl.client.DefaultHttpClient - Attempt 2 to execute request DEBUG 2013-03-28 16:22:02,359 org.apache.http.impl.conn.DefaultClientConnection - Sending request: POST /Contactus/contactus/ HTTP/1.1 DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "POST /Contactus/contactus/ HTTP/1.1[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Debug: True[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "SiteId: 111[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Content-Type: application/x-www-form-urlencoded[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Content-Length: 692[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Host: jboss-stage.framework.abc.com[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Connection: Keep-Alive[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "User-Agent: Apache-HttpClient/4.2.3 (java 1.5)[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "Authorization: Basic ********************[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "[\r][\n]" DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> POST /Contactus/contactus/ HTTP/1.1 DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Debug: True DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> SiteId: 111 DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Content-Type: application/x-www-form-urlencoded DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Content-Length: 692 DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Host: jboss-stage.framework.abc.com DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Connection: Keep-Alive DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> User-Agent: Apache-HttpClient/4.2.3 (java 1.5) DEBUG 2013-03-28 16:22:02,359 org.apache.http.headers - >> Authorization: Basic **************** DEBUG 2013-03-28 16:22:02,359 org.apache.http.wire - >> "ServiceReq={"ContactUs":{"ContactInfo":[{"FieldName":"gender","FieldValue":"F","IsEncrypted":false,"EncryptedValue":false}],"StatusCode":"New","Subject_id":"123"}}" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "HTTP/1.1 201 Created[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Server: Apache-Coyote/1.1[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "X-Powered-By: Servlet 2.4; JBoss-4.2.3.GA (build: SVNTag=JBoss_4_2_3_GA date=200807181417)/JBossWeb-2.0[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Date: Thu, 28 Mar 2013 10:52:10 GMT[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Accept-Ranges: bytes[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Server: Noelios-Restlet-Engine/1.1.5[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Content-Type: application/json;charset=UTF-8[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "Content-Length: 114[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "[\r][\n]" DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.conn.DefaultClientConnection - Receiving response: HTTP/1.1 201 Created DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << HTTP/1.1 201 Created DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Server: Apache-Coyote/1.1 DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << X-Powered-By: Servlet 2.4; JBoss-4.2.3.GA (build: SVNTag=JBoss_4_2_3_GA date=200807181417)/JBossWeb-2.0 DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Date: Thu, 28 Mar 2013 10:52:10 GMT DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Accept-Ranges: bytes DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Server: Noelios-Restlet-Engine/1.1.5 DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Content-Type: application/json;charset=UTF-8 DEBUG 2013-03-28 16:22:03,342 org.apache.http.headers - << Content-Length: 114 DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.client.DefaultHttpClient - Connection can be kept alive indefinitely DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.client.DefaultHttpClient - Authentication succeeded DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.client.TargetAuthenticationStrategy - Caching 'basic' auth scheme for http://jboss-stage.framework.abc.com:80 DEBUG 2013-03-28 16:22:03,342 org.apache.http.wire - << "{"StatusCode":"00","contactusId":2025958,"Message":"Success","AutoResponse":"Text","AutoResponseText":"Thank you"}" DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.conn.BasicClientConnectionManager - Releasing connection org.apache.http.impl.conn.ManagedClientConnectionImpl@1798928 DEBUG 2013-03-28 16:22:03,342 org.apache.http.impl.conn.BasicClientConnectionManager - Connection can be kept alive indefinitely </code></pre> In attempt 1, i get the response <code>HTTP/1.1 401 Unauthorized</code> whereas in attempt 2, authorization is successful and i get a success response <code>HTTP/1.1 201 Created</code>. How can I avoid the unsuccessful attempt (1)? Solving this will greatly help performance.Thanks! EDIT: Ok, i looked at other answers and there seems to be 2 ways of achieving this : 1. setting preemptive authentication to true 2. Setting the authentication in header Which is the best way though?
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DefaultHttpClient - Avoiding multiple Attempts to execute request
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