display images using servlets

I have a scenario where I need to display tables(generated using JTable) converted it into a png image and then display them using servlets.

The following is the code in the servlet to display the table :

{
        table = u.generateTableChart("datamonth");    
        saveToServlet(table, table.getTableHeader(), p_resp);
}

void saveToServlet(JTable table, JTableHeader header,
            HttpServletResponse p_resp)
    {

        int w = Math.max(table.getWidth(), header.getWidth());
        int h = table.getHeight() + header.getHeight();
        OutputStream out = null;
        BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = bi.createGraphics();
        header.paint(g2);
        g2.translate(0, header.getHeight());
        table.paint(g2);
        g2.dispose();
        try {
            p_resp.setContentType("i开发者_StackOverflow社区mage/png");
            out = p_resp.getOutputStream();
            ImageIO.write(bi, "png", out);

        } catch (IOException ioe) {
            System.out.println("write: " + ioe.getMessage());
        }
    }

This seems to be throwing this error when I try to view it on the web page The image cannot be displayed as it has too many errors.

I am able to store the file in a temporary location and I am able to see the graph.

For Charts generated using JFreeCharts I am using this :

 ServletOutputStream out = null;

    try {
        out = p_resp.getOutputStream();
        p_resp.setContentType("image/png");
        chart=u.genarateLineChart(m_martiniInstance);
        ChartUtilities.writeChartAsJPEG(out, chart, 625, 500); 
    }

and still not luck

Thanks in advance, Bhavya

I think problem is you are setting content type as "image/png" but writing jpeg writeChartAsJPEG use

ChartUtilities.writeChartAsPNG(...)