Example usage for javax.servlet.http HttpServletResponse getOutputStream

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse getOutputStream.

Prototype

public ServletOutputStream getOutputStream() throws IOException;

Source Link

Document

Returns a ServletOutputStream suitable for writing binary data in the response.

Usage

From source file:com.usefullc.platform.common.utils.IOUtils.java

/**
 * /*from   ww  w.  ja v a  2 s  .  c o m*/
 * 
 * @param content
 * @param fileName
 * @param response
 */
public static void download(byte[] content, String fileName, HttpServletResponse response) {
    try {
        // response
        response.reset();

        // ??linux ?  linux utf-8,windows  GBK)
        String defaultEncoding = System.getProperty("file.encoding");
        if (defaultEncoding != null && defaultEncoding.equals("UTF-8")) {

            response.addHeader("Content-Disposition",
                    "attachment;filename=" + new String(fileName.getBytes("GBK"), "iso-8859-1"));
        } else {
            response.addHeader("Content-Disposition",
                    "attachment;filename=" + new String(fileName.getBytes(), "iso-8859-1"));
        }

        // responseHeader
        response.addHeader("Content-Length", "" + content.length);
        response.setContentType("application/octet-stream");
        OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
        toClient.write(content);
        toClient.flush();
        toClient.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

From source file:com.yunmel.syncretic.utils.io.IOUtils.java

/**
 * ?//from  ww  w.  ja  v  a2  s .  co  m
 * 
 * @param files 
 * @param out ?
 * @throws IOException
 * @throws Exception
 */
public static void zipDownLoad(Map<File, String> downQuene, HttpServletResponse response) throws IOException {

    ServletOutputStream out = response.getOutputStream();
    ZipOutputStream zipout = new ZipOutputStream(out);
    ZipEntry entry = null;
    zipout.setLevel(1);
    // zipout.setEncoding("GBK");
    if (downQuene != null && downQuene.size() > 0) {
        for (Entry<File, String> fileInfo : downQuene.entrySet()) {
            File file = fileInfo.getKey();
            try {
                String filename = new String(fileInfo.getValue().getBytes(), "GBK");
                entry = new ZipEntry(filename);
                entry.setSize(file.length());
                zipout.putNextEntry(entry);
            } catch (IOException e) {
                // Logger.getLogger(FileUtil.class).warn(":", e);
            }
            BufferedInputStream fr = new BufferedInputStream(new FileInputStream(fileInfo.getKey()));
            int len;
            byte[] buffer = new byte[1024];
            while ((len = fr.read(buffer)) != -1)
                zipout.write(buffer, 0, len);
            fr.close();
        }
    }

    zipout.finish();
    zipout.flush();
    // out.flush();
}

From source file:com.lushapp.common.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String filePath,
        String displayName) throws IOException {
    File file = new File(filePath);

    if (StringUtils.isEmpty(displayName)) {
        displayName = file.getName();/*w ww .  j  a  v  a 2 s . c  o  m*/
    }

    if (!file.exists() || !file.canRead()) {
        response.setContentType("text/html;charset=utf-8");
        response.getWriter().write("??");
        return;
    }

    response.reset();
    WebUtils.setNoCacheHeader(response);

    response.setContentType("application/x-download");
    response.setContentLength((int) file.length());

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    WebUtils.setDownloadableHeader(request, response, displayFilename);
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(new FileInputStream(file));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException {
    ServletOutputStream out = res.getOutputStream();
    res.setContentType("text/html");
    out.println("<html><head><title>Basic Servlet</title></head>");
    out.println("<body>Database username is  <b>" + dbName);
    out.println("</b><br>Database password is  <b>" + dbPassword + "</b>");
    out.println("</body></html>");
}

From source file:com.trailmagic.image.ui.InputStreamView.java

private void writeOutput(Map model, HttpServletResponse res) throws IOException {
    OutputStream out = res.getOutputStream();
    InputStream in = (InputStream) model.get(STREAM_KEY);

    IOUtils.copy(in, out);/*from ww  w .j ava  2 s. c o  m*/
}

From source file:LoggingServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException {
    ServletOutputStream out = res.getOutputStream();
    context.log("doGet has now been invoked");
    res.setContentType("text/html");
    out.println("<html><head><title>Logging Servlet</title></head>");
    out.println("<body>Visit the <tomcat-home>\\logs and open the xx file to see the log entries");
    out.println("</body></html>");
}

From source file:MyServlet.java

public void doPost(HttpServletRequest req, HttpServletResponse res) throws IOException {
    ServletOutputStream out = res.getOutputStream();
    res.setContentType("text/html");
    out.println("<html><head><title>Basic Form Processor Output</title></head>");
    out.println("<body>");
    out.println("<h1>Here is your Form Data</h1>");
    //extract the form data here
    String title = req.getParameter("title");
    String name = req.getParameter("name");
    String city = req.getParameter("city");
    String country = req.getParameter("country");
    String tel = req.getParameter("tel");
    String age = req.getParameter("age");
    // extracting data from the checkbox field
    String[] interests = req.getParameterValues("interests");
    //output the data into a web page
    out.println("Your title is " + title);
    out.println("<br>Your name is " + name);
    out.println("<br>Your city is " + city);
    out.println("<br>Your country is " + country);
    out.println("<br>Your tel is " + tel);
    out.println("<br>Your interests include<ul> ");
    for (int i = 0; i < interests.length; i++) {
        out.println("<li>" + interests[i]);
    }/*w  ww . j a  va 2  s.c  om*/
    out.println("</ul>");
    out.println("<br>Your age is " + age);
    out.println("</body></html>");
}

From source file:DeliberateException.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
    ServletOutputStream out = res.getOutputStream();
    res.setContentType("text/html");
    out.println("<html><head><title>Exception Thrower</title></head>");
    out.println("<body>You'll never see this!</body></html>");

}

From source file:org.opensafety.hishare.view.StringOutput.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    String output = (String) model.get("string");
    response.getOutputStream().print(output);
    response.getOutputStream().flush();//  w  w  w .  ja  va 2 s  .co m
}

From source file:net.oletalk.hellospringboot.controller.S3Controller.java

@RequestMapping("/from")
void from(@RequestParam(value = "key") String objectKey, HttpServletResponse response) {
    try {/*from  w w w  .j av a  2  s  .  c  om*/
        service.writeDocument(objectKey, response.getOutputStream());
    } catch (IOException ioe) {
        try {
            response.getWriter().println("Error in response: " + ioe.toString());
        } catch (IOException e) {
            LOG.error(e);
        }
    } catch (S3Exception ex) {
        LOG.error(ex);
    }
}