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  1. #1
    Join Date
    Jul 2004

    Unanswered: Help – Crystal Viewer getting parameters from URL cannot perform CR toolbar functions

    Hi there,

    I am having aproblem to used CR Viewer in JSP files. The Report name and parameters ware passed to the Viewer from a URL that invoke the JSP.

    System: Crystal Report (Dev. Edition) 10 JRC on Tomcat 4.1.27 + Windows2000 IE 6

    Symptom: The parameters on a URL (in IE address field) were lost after performing crystal report toolbar functions such as refreshing/zooming/exporting, causing the following error message on the JSP page: org.apache.jasper.JasperException

    For example, I used the following URL to view a crystal report: http://localhost:8080/viewReport.jsp..._ID&Value_1=12

    The report was opened without any problem. However, if I click a crystal report viewer’s toolbar button, say, refresh page, the URL in the IE’s address field will become http://localhost:8080/viewReport.jsp, which truncates the report file name and parameters. Of cause it causes an exception, since the crystal report requires the report file name and parameter set.

    I believe there must be a way around to make the CR viewer work in my situation. Could anyone here tell me how to do it?

    Thank you,


  2. #2
    Join Date
    May 2004
    One possible solution would be to separate out your parameter gathering step from the report display step as follows:

    Make a parameter-collect jsp page (using url rewriting or whatever) and store the collected info in a bean. After storage of the bean (using request.setAttribute("reportbean", reportBean) redirect (response.sendRedirect("display.jsp") to the display page.

    Make a display page that retrieves the bean (request.getAttribute("reportbean") and uses the parametes in the bean to launch the viewer.
    Last edited by topekk; 07-26-04 at 10:12.

  3. #3
    Join Date
    Jul 2004

    Smile Thank you for your solution. I used session to store my data. It works.

    Thank you for your idea.

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