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11076768
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2012-06-18T03:57:50.623
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2012-06-18T03:57:50.623
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@JB Nizet and @Pointy Thanks for your time and replies. I figured out a solution for my problem. @Pointy I am changing subdomain of user which require a redirect but also i don't want to loose post parameters in that request. I hope now it make sense. Here what I did (in Steps): <ul> <li>First I figured when i need to do redirect and need to save post parameter.</li> <li>Save all the post data in session (temporally). </li> <li>If i have any temporally post value in session I put it in new request and removes the post value from session.</li> </ul> Code: For setting post parameter in session: <pre><code>resolution = new RedirectResolution(reponseUrl); Iterator<Map.Entry<String, String[]>> requestParamter = ctx.getRequest().getParameterMap().entrySet().iterator(); List<IdName> requestParams = new ArrayList<IdName>(); while(requestParamter.hasNext()){ IdName param = new IdName(); Map.Entry<String, String[]> entry = requestParamter.next(); param.setName(entry.getKey()); param.setParameterValues(entry.getValue()); log.trace("intercept - Adding Key: {} with value: {} to redirect request parameter.", entry.getKey(), entry.toString() ); requestParams.add(param); } ctx.setRedirectRequestParameter(requestParams); </code></pre> For getting it back: <pre><code>if(ctx.getRedirectRequestParameter() != null && !ctx.getRedirectRequestParameter().isEmpty()){ //Removes parameter which are already in request from redirect request parameter. Map<String, String[]> additionalParams = new TreeMap<String, String[]>(); Map requestParameterMap = ctx.getRequest().getParameterMap(); ListIterator<IdName> oldRequestParams = ctx.getRedirectRequestParameter().listIterator(); while(oldRequestParams.hasNext()){ IdName oldRequestParam = oldRequestParams.next(); log.trace("Lopping requestparameter key: {} ", oldRequestParam.getName() ); if (!requestParameterMap.containsValue(oldRequestParam.getName())) { additionalParams.put(oldRequestParam.getName(), oldRequestParam.getParameterValues()); } } HttpServletRequest newRequest = new MyperksHttpServletRequestWrapper(ctx.getRequest(), additionalParams); ctx.setRequest(newRequest); ctx.setRedirectRequestParameter(null); } </code></pre> I have also created a wrapper class which adds new parameter to request which create a new request wrapper that will merge additional parameters into the request object without prematurely reading parameters from the original request. For deatil about this class kindly follow the link: <a href="http://ocpsoft.org/opensource/how-to-safely-add-modify-servlet-request-parameter-values/" rel="nofollow">PrettyFaceRequestWrapper</a>.
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1. POIntercepting and changing request url Using Stripes framework
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1. USKishor Sharma
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