I am trying to display PDF report inside jsp
I have PDFstream available using following code
private void generatePDFReport(OutputStream stream, JasperPrint jasperPrint) throws JRException { JRPdfExporter jrpdfexporter = new JRPdfExporter(); jrpdfexporter.setExporterInput(new SimpleExporterInput(jasperPrint)); jrpdfexporter.setExporterOutput(new SimpleOutputStreamExporterOutput(stream)); SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration(); jrpdfexporter.setConfiguration(configuration); jrpdfexporter.exportReport();
}
now I am outputstream which is basically PDF Stream which i want to display into jsp, I dont want to set whole response contenttype as application/pdf but i want to embed pdf into part of jsp output
So i convrted pdfstream output into bytearray and trying to display using following
<script language="Javascript">
function loadDoc() {
alert('called loadDoc');
var xhr = new XMLHttpRequest();
alert('called xhr');
xhr.responseType = 'arraybuffer';
alert('called responseType');
alert('called xhr.onload ');
// Create the Blob URL:
var buffer = xhr.response;
var blob = new Blob([<%=byteCharSet%>], {
type: 'application/pdf'
});
var objectURL = URL.createObjectURL(blob);
alert(objectURL);
// Create an iframe to demonstrate it:
var iframe = document.createElement('iframe');
iframe.className = 'sample-iframe';
iframe.src = objectURL;
document.body.appendChild(iframe);
console.log(objectURL);
//xhr.open('GET', 'https://cors-anywhere.herokuapp.com/http://www.xmlpdf.com/manualfiles/hello-world.pdf', true);
//xhr.send();
}
</script>
but when I am trying to execute javascript couldn't understand bytearray output it simply getting failed blob value getting displayed as below in view page source
var blob = new Blob([%PDF-1.4
%����
3 0 obj
<</Filter/FlateDecode/Length 625>>stream
x���M��0@��>��um�'�v�������C
^���V�����Ķ�H����3�?�}� � �q�D3�
q�`�e��˼'��Do?1�(Ξ�h��2s�S(^�����gĈ^�/b��a�r"\"���_���Г�Lw
I used Iframe to solve this issue.
In iframe for src i used another jsp.
out.write("<iframe src= displayPDF.jsp" + " " + "type=application/pdf width=100% height=600px ");
out.write("</iframe>");
following is the displayPDF.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%><%
byte[] pdfByteArray = (byte[]) session.getAttribute("PDFbyteArray");
if (pdfByteArray == null)
System.out.println("pdfByteArray is null");
response.setHeader("Content-Disposition", "inline; filename=\"MyFile.pdf\"");
response.setContentType("application/pdf; name=\"MyFile.pdf\"");
ServletOutputStream serv_out = response.getOutputStream();
serv_out.write(pdfByteArray);
serv_out.flush();
serv_out.close();
out.clear();
session.removeAttribute("PDFbyteArray");%>
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