Flying saucer with struts2

Flying Saucer takes XML or XHTML and applies CSS 2.1-compliant stylesheets to it, in order to render to PDF (via iText), images, and on-screen using Swing or SWT. The library implements (basically) the entirety of CSS 2.1 and aims to be fully compliant with the W3C specification; it includes a small handful of CSS 3 features.[source]

package com.ebhor;

import static com.opensymphony.xwork2.Action.SUCCESS;
import com.opensymphony.xwork2.ActionSupport;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.StringBufferInputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.xhtmlrenderer.pdf.ITextRenderer;

public class PdfAction extends ActionSupport {

    private InputStream inputStream = null;

    public String DownloadPdf() {
        Document doc = null;
        try {
            DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            doc = builder.parse(new StringBufferInputStream(new HtmlFormats().htmlContent().toString()));

            ITextRenderer renderer = new ITextRenderer();
            renderer.setDocument(doc, null);
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            renderer.layout();
            renderer.createPDF(bos);
            setInputStream(new ByteArrayInputStream(bos.toByteArray()));
        } catch (Exception e) {
            System.out.println("Exception " + e);
        }
        return SUCCESS;
    }

    public InputStream getInputStream() {
        return inputStream;
    }

    public void setInputStream(InputStream inputStream) {
        this.inputStream = inputStream;

    }
}

public class HtmlFormats {

    public StringBuffer htmlContent() {
        StringBuffer sb = new StringBuffer("<html><body> "
                + "<h2>Hello Friends</h2>"
                + "</body></html>");
        return sb;
    }

package com.ebhor;

import static com.opensymphony.xwork2.Action.SUCCESS;

import com.opensymphony.xwork2.ActionSupport;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.InputStream;

import java.io.StringBufferInputStream;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;

import org.xhtmlrenderer.pdf.ITextRenderer;

public class PdfAction extends ActionSupport {

private InputStream inputStream = null;

public String DownloadPdf() {

Document doc = null;

try {

DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();

doc = builder.parse(new StringBufferInputStream(new HtmlFormats().htmlContent().toString()));

ITextRenderer renderer = new ITextRenderer();

renderer.setDocument(doc, null);

ByteArrayOutputStream bos = new ByteArrayOutputStream();

renderer.layout();

renderer.createPDF(bos);

setInputStream(new ByteArrayInputStream(bos.toByteArray()));

} catch (Exception e) {

System.out.println("Exception " + e);

}

return SUCCESS;

}

public InputStream getInputStream() {

return inputStream;

}

public void setInputStream(InputStream inputStream) {

this.inputStream = inputStream;

}

public class HtmlFormats {

public StringBuffer htmlContent() {

StringBuffer sb = new StringBuffer("<html><body> "

+ "<h2>Hello Friends</h2>"

+ "</body></html>");

return sb;

}

<action name="DownloadPdf" class="com.ebhor.PdfAction" method="DownloadPdf">
            <result name="success" type="stream">
                <param name="contentDisposition">attachment;filename=Invoice.pdf</param>
                <param name="contentType">application/pdf</param>
                <param name="inputName">inputStream</param>
                <param name="bufferSize">1024</param>
            </result>
            <result name="input">/pages/reports/SingleBill.jsp</result>
            <result name="login">/pages/login.jsp</result>            
            <result name="UNAUTHORIZED">/pages/Unautho.jsp</result>
        </action>

<param name="contentDisposition">attachment;filename=Invoice.pdf</param>

<param name="contentType">application/pdf</param>

<param name="inputName">inputStream</param>

</result>

<result name="input">/pages/reports/SingleBill.jsp</result>

<result name="login">/pages/login.jsp</result>

<result name="UNAUTHORIZED">/pages/Unautho.jsp</result>

</action>

In jsp page

   <a href="DownloadPdf">Download</a>

1	<a href="DownloadPdf">Download</a>