How to pass the fields or values described in a jsp to jasper report so that it can display the data in PDF format

Question

Im using Eclipse below are part of the code

<!--menu.jsp-->
<h1>Pass parameter to jasper report(CI_ID)</h1>
<form action = "call.jsp" target="_blank">
<input type= "text" name = "CI_ID" value = ""/><br/> 
<input type="submit" value="Print"/>
</form>

<!--call.jsp-->
<%Connection conn = null;
int id=Integer.parseInt(request.getParameter("CI_ID"));
try{
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","1234");
File reportFile = new File(application.getRealPath("//Report.jasper"));
Map parameters = new HashMap();
parameters.put("CI_ID",id);

byte[] bytes = JasperRunManager.runReportToPdf(reportFile.getPath(),parameters,conn);
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream outStream = response.getOutputStream();
outStream.write(bytes, 0 , bytes.length);
response.getOutputStream().flush();
response.getOutputStream().close();
} catch (Exception e){
    e.printStackTrace();
}%>

I preview on the Jasper report without any problem but when I use the JSP to pass the parameter to Jasper report on Eclipse and i get this error “File does not begin with '%PDF-'.” pop up window for adobe reader.

I tried below solution, but still not working

1)Change to

response.setContentType("application/pdf");

response.setContentType("application/x-pdf");

2)Update adobe reader

3)Import all related .jar for jasper

Answer 1

In Jasper i did some tricky things.First i opened a jasper report and in "report query" i added a query like "Select * from example" and you can observe all the fields in the table will be displayed below and i clicked "Ok" and i added static and text fields and then finally i have to pass the parameters from jsp to ireport so again i opened "Report Query" i erased the query that i wrote previously and then i added this $P!{sql} with an image now

Answer 2

First thing is you have session attributes and request.getParameters so that you can send those parameters to the jasper report.I will show an example for better understanding. I have a jsp page such as searchData.jsp

 <form action="searchResult.jsp" method="POST">
                    <table border="0" width="" cellspacing="15" cellpadding="1">
                        <thead>
                            <tr>
                                <th>Search Using:</th>
                                <th><select name="search">
                                        <option value=""> Select</option>
                                        <option value="Company Name">Company Name</option>
                                        <option value="Contact Person">Contact Person</option>
                                        <option value="Phone">Phone Number</option>
                                    </select></th>


                                <th><input type="text" name="search_tf" /></th>
                                <th><input type="submit" value=" " class="search_btn"/></th>
                            </tr>
                        </thead>
                        <tr>
                            <td></td><td></td><td></td><td></td>
                            <td><small>(Blank Search will result in Full Search Result)</small></td>
                        </tr>
                    </table>
                </form>

After clicking submit button as i have action as "searchResult.jsp" it will go to searchResult.jsp

In searchResult.jsp page i used request.getParameter so that the data entered in the previous jsp page will now enter into current jsp page and then i used session attributes so as it can used in the further jsp pages until session gets ended.It is as shown below

Search Result for <u><%= request.getParameter("search_tf")%></u> in <u><%= request.getParameter("search")%></u> is :

 Object o2 = session.getAttribute("email");
                                    String email = o2.toString();
                                    String category = request.getParameter("category");
                                    String search = request.getParameter("search");
                                    session.setAttribute("search",search);
                                    String search_tf = request.getParameter("search_tf");
                                    session.setAttribute("search_tf",search_tf);

and then my sql query,i am giving an example of sql query

if(search.equals("")&& search_tf.equals("")){
                                        sqlPgintn="SELECT SQL_CALC_FOUND_ROWS Id,Company_name,Contact_Person,Address,Phone,Company_Email,Review,Status,Lead_Date,Lead_Details,Lead_Value,followup_Date,Category from marketing_database.lead limit "+iPagNo+","+iSwRws+"";
}
 else if(search.equals("Company Name"))
                                    {   
                                        sqlPgintn="SELECT SQL_CALC_FOUND_ROWS Id,Company_name,Contact_Person,Address,Phone,Company_Email,Review,Status,Lead_Date,Lead_Details,Lead_Value,followup_Date,Category from marketing_database.lead where Company_Name ='"+search_tf+"' limit "+iPagNo+","+iSwRws+"";

And now using javascript i did this

<script type="text/javascript">
 function generateReport() {
  var e = document.getElementById("idOfYourSelectYouNeedToAddedIt");
  var strPage = e.options[e.selectedIndex].value;
  window.open(strPage);
 return false; //This make you stay on this page;
  //return true; //Set the action tag in the form to the page you like to go to!
 }
</script>
<center>       <form name="myForm" onsubmit="return generateReport()">
               <select id = "idOfYourSelectYouNeedToAddedIt">
<option value=''> Generate Report </option>
<option value='samplePDF.jsp'> PDF</option>
<option value='sampleDOC.jsp'> DOC </option>
<option value='sampleXLS.jsp'> XLS</option>
<option value='sampleXLSX.jsp'> XLSX </option>
</select>
<br/>

<input type="submit" value="Submit">
</form></center>

when i click on suppose "samplePDF.jsp" it will go that page and there i did this samplePDF.jsp

<%
Connection conn = null;
Object o2 = session.getAttribute("email");
String email = o2.toString();
String category=(String)session.getAttribute("category");
String status=(String)session.getAttribute("status");
String startDate=(String)session.getAttribute("startDate");
String endDate=(String)session.getAttribute("endDate");

try 
{
    Class.forName("com.mysql.jdbc.Driver");
    conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/marketing_database","root","root");
    String sql = "select * from lead where Email = '" + email + "' AND Status LIKE '%" + status + "%' AND Category LIKE '%" + category + "%' AND STR_TO_DATE(`Lead_Date`, '%d-%m-%Y') BETWEEN '"+startDate+"' AND '"+endDate+"'";
    ServletContext context = request.getServletContext(); 
    String fullPath = context.getRealPath("/WEB-INF/reports/report10.jrxml");
    InputStream input = new FileInputStream(new File(fullPath));
    JasperDesign jasperDesign = JRXmlLoader.load(input);

    System.out.println("Compiling Report Designs");
    JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);

    System.out.println("Creating JasperPrint Object");
    HashMap<String,Object> map = new HashMap<String,Object>();
    map.put("sql",sql);
            byte[] bytes = JasperRunManager.runReportToPdf(jasperReport, map, conn);

            response.setContentType("application/pdf");
            response.setContentLength(bytes.length);
            ServletOutputStream outStream = response.getOutputStream();
            outStream.write(bytes, 0, bytes.length);
            outStream.flush();
            outStream.close();
            conn.close();
}
catch(Exception e) 
{e.printStackTrace();} 

        %>