POSTing to a servlet

[RVic]

I have a JUnit test that tests a servlet. The code is straightforward:

HttpClient httpClient = new DefaultHttpClient();
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json");
addParameter(nvps, "query", "engagementByFacility");
addParameter(nvps, "surveyId", 681150);
httpPost.setEntity(new UrlEncodedFormEntity(nvps));
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String responseBody = httpClient.execute(httpPost, responseHandler);

On this last line however, httpClient.execute(), things fail and I am at an utter loss as to why. The URL is good. Examination of the stack shows:

org.apache.http.client.HttpResponseException: Moved Temporarily
at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:68)
at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:54)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1070)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1044)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1035)
at ees.cmn.web.servlet.JSONServletTest.testFindOrgs(JSONServletTest.java:75)
at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.run(InternalAntRunner.java:424)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.main(InternalAntRunner.java:138)


"Moved Temporarily?" What in the world might be going on here? TIA

RVince

 

[Arne Vajhøj]

I have a JUnit test that tests a servlet. The code is straightforward:

HttpClient httpClient = new DefaultHttpClient();
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json");
addParameter(nvps, "query", "engagementByFacility");
addParameter(nvps, "surveyId", 681150);
httpPost.setEntity(new UrlEncodedFormEntity(nvps));
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String responseBody = httpClient.execute(httpPost, responseHandler);

On this last line however, httpClient.execute(), things fail and I am at an utter loss as to why. The URL is good. Examination of the stack shows:

org.apache.http.client.HttpResponseException: Moved Temporarily
at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:68)
at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:54)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1070)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1044)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1035)
at ees.cmn.web.servlet.JSONServletTest.testFindOrgs(JSONServletTest.java:75)
at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.run(InternalAntRunner.java:424)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.main(InternalAntRunner.java:138)


"Moved Temporarily?" What in the world might be going on here? TIA

The URL has moved.

Your browser probably redirect automatically.

But HttpClient should actually do the same.

See:

http://hc.apache.org/httpcomponents-client-ga/tutorial/html/httpagent.html

Could you check the actual response getting back
with a tool like TCPMon?

Arne

 

[Roedy Green]

org.apache.http.client.HttpResponseException: Moved Temporarily

Sounds like you got a 302. You can either chase the Location field
manually leg by leg till you get to where you want, or set some option
to ask the system to chase redirects for you without telling you about
them.

I do both in Brokenlinks. I don't use Apache though. I just use the
Sun classes wrapped in my own HTTP class, quite a bit simpler than
Apache.
See http://mindprod.com/products.html#BROKENLINKS

Watch what is happening with Wireshark. It should come clear quickly.
See http://mindprod.com/jgloss/wireshark.html

 

[Lothar Kimmeringer]

I have a JUnit test that tests a servlet. The code is straightforward:

HttpClient httpClient = new DefaultHttpClient();
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json");
[...]

On this last line however, httpClient.execute(), things fail and I am at an utter loss as to why. The URL is good. Examination of the stack shows:

org.apache.http.client.HttpResponseException: Moved Temporarily [...]
"Moved Temporarily?" What in the world might be going on here? TIA

Try
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json/");
instead.


Regards, Lothar
--
Lothar Kimmeringer E-Mail: (e-mail address removed)
PGP-encrypted mails preferred (Key-ID: 0x8BC3CD81)

Always remember: The answer is forty-two, there can only be wrong
questions!

 

[Arne Vajhøj]

I have a JUnit test that tests a servlet. The code is straightforward:

HttpClient httpClient = new DefaultHttpClient();
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json");
[...]

On this last line however, httpClient.execute(), things fail and I am at an utter loss as to why. The URL is good. Examination of the stack shows:

org.apache.http.client.HttpResponseException: Moved Temporarily [...]
"Moved Temporarily?" What in the world might be going on here? TIA

Try
HttpPost httpPost = new HttpPost("http://myaerver.com:8080/servlets/json/");
instead.

Good point.

Some servers do redirect with missing end slash.

OP should spend 5 seconds checking that.

Arne