Problem while Exporting

[Leo17]

Hi,

I have been trying to export my reports to PDF using Crystal Enterprise Java SDK.

When I do this using JSP it works fine, but when I try to do this using a Servlet it gives me "The Response has been Commited" error. and the path of the Viewer on the Browser.

Can anybody help ?

I am pasting the code for servlet


/**********************************************************/
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {

ServletContext application = this.getServletContext();

ServletConfig config = this.getServletConfig();
HttpSession session = request.getSession();

response.setContentType("text/html;charset=ISO-8859-1");
PrintWriter out = response.getWriter();

try{

// Connect to Crystal Enterprise
CrystalEnterprise ce = new CrystalEnterprise();
ISessionMgr sm = ce.getSessionMgr();
IEnterpriseSession es = sm.logon(mUser, mPassword, mAPSName, mAuthType);
// Get the Report Application Factory service from Crystal Enterprise
IReportAppFactory rptAppFactory = (IReportAppFactory)es.getService("", "RASReportService");
// Get the InfoStore service from Crystal Enterprise
IInfoStore infoStore = (IInfoStore)es.getService("", "InfoStore");
// Retrieve the report by name from Crystal Enterprise
IInfoObjects oInfoObjects = infoStore.query("Select SI_ID From CI_INFOOBJECTS Where SI_NAME = '" + "phonelist" + "'");
// Open the report into a Report Document object
ReportClientDocument clientDoc = rptAppFactory.openDocument((IInfoObject)oInfoObjects.get(0), 0, Locale.ENGLISH);

// Create a Viewer object
CrystalReportViewer viewer = new CrystalReportViewer();
// Set the name for the viewer
viewer.setName("Crystal_Report_Viewer");
// Set the source for the viewer to the client documents report source
viewer.setReportSource(clientDoc.getReportSource());

viewer.setOwnPage(true);
viewer.setDisplayToolbar(true);

// Process the http request to view the report
viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), out);
// Dispose of the viewer object
viewer.dispose();

}catch(Exception e){
out.println(e.getMessage());
}

}


/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
processRequest(request, response);
}

/********************************************************/

 

[maddyl]

Hi,

don't know if you are still working on this problem as your post is quite old but the first step I would try is to put a null onto your process http request line ie: viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), null);

If that doesnt work and you are still stuck then email me and I will send you a copy of a working servlet that I received from a crystal expert.