Example usage for javax.servlet.http HttpServletResponse setContentLength

List of usage examples for javax.servlet.http HttpServletResponse setContentLength

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Introduction

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

Prototype

public void setContentLength(int len);

Source Link

Document

Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header.

Usage

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();//from w w w.  j a va2s. co 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:com.ikon.util.WebUtils.java

/**
 * Send file to client browser.//from  w  w w .  j av a2 s .co m
 * 
 * @throws IOException If there is a communication error.
 */
public static void sendFile(HttpServletRequest request, HttpServletResponse response, String fileName,
        String mimeType, boolean inline, File input) throws IOException {
    log.debug("sendFile({}, {}, {}, {}, {}, {})",
            new Object[] { request, response, fileName, mimeType, inline, input });
    prepareSendFile(request, response, fileName, mimeType, inline);

    // Set length
    response.setContentLength((int) input.length());
    log.debug("File: {}, Length: {}", fileName, input.length());

    ServletOutputStream sos = response.getOutputStream();
    FileUtils.copy(input, sos);
    sos.flush();
    sos.close();
}

From source file:com.ikon.util.WebUtils.java

/**
 * Send file to client browser./*  w w w  .j  av a2 s  . co  m*/
 * 
 * @throws IOException If there is a communication error.
 */
public static void sendFile(HttpServletRequest request, HttpServletResponse response, String fileName,
        String mimeType, boolean inline, InputStream is) throws IOException {
    log.debug("sendFile({}, {}, {}, {}, {}, {})",
            new Object[] { request, response, fileName, mimeType, inline, is });
    prepareSendFile(request, response, fileName, mimeType, inline);

    // Set length
    response.setContentLength(is.available());
    log.debug("File: {}, Length: {}", fileName, is.available());

    ServletOutputStream sos = response.getOutputStream();
    IOUtils.copy(is, sos);
    sos.flush();
    sos.close();
}

From source file:ispyb.client.common.util.FileUtil.java

/**
 * downloadFile/*from w w w  .  j a va2  s  . c  o  m*/
 * 
 * @param fullFilePath
 * @param mimeType
 * @param response
 */
public static void DownloadFile(String fullFilePath, String mimeType, String attachmentFilename,
        HttpServletResponse response) {
    try {
        byte[] imageBytes = FileUtil.readBytes(fullFilePath);
        response.setContentLength(imageBytes.length);
        ServletOutputStream out = response.getOutputStream();
        response.setHeader("Pragma", "public");
        response.setHeader("Cache-Control", "max-age=0");
        response.setContentType(mimeType);
        response.setHeader("Content-Disposition", "attachment; filename=" + attachmentFilename);

        out.write(imageBytes);
        out.flush();
        out.close();

    } catch (FileNotFoundException fnf) {
        LOG.debug("[DownloadFile] File not found: " + fullFilePath);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:org.esgf.legacydatacart.WgetGeneratorController.java

private static void writeBash(String wgetText, String filename, HttpServletResponse response) {
    try {/*from  ww  w  .j  a  v a2  s.c om*/
        //attach the sh file extension to the response
        response.setContentType("text/x-sh");
        response.addHeader("Content-Disposition", "attachment; filename=" + filename);
        response.setContentLength((int) wgetText.length());

        PrintWriter out = response.getWriter();
        out.print(wgetText);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:de.micromata.genome.gwiki.plugin.vfolder_1_0.GWikiVFolderUtils.java

public static void writeContent(GWikiElement vfolderEl, String filePageId, HttpServletResponse resp)
        throws IOException {

    // resp.setContentType(getContentType());
    String localName = getLocalFromFilePageId(vfolderEl, filePageId);
    GWikiVFolderNode fvn = GWikiVFolderNode.getVFolderFromElement(vfolderEl);

    FsObject file = fvn.getFileSystem().getFileObject(localName);
    if (file.exists() == false) {
        return;/*ww  w. j a v  a 2  s .co  m*/
    }
    resp.setContentLength(file.getLength());
    OutputStream os = resp.getOutputStream();
    fvn.getFileSystem().readBinaryFile(localName, os);
}

From source file:cn.guoyukun.spring.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String displayName,
        byte[] bytes) throws IOException {

    if (ArrayUtils.isEmpty(bytes)) {
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write("??");
        return;//w ww .jav a2  s .  c  om
    }

    String userAgent = request.getHeader("User-Agent");
    boolean isIE = (userAgent != null) && (userAgent.toLowerCase().indexOf("msie") != -1);

    response.reset();
    response.setHeader("Pragma", "No-cache");
    response.setHeader("Cache-Control", "must-revalidate, no-transform");
    response.setDateHeader("Expires", 0L);

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

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    if (isIE) {
        displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");
    } else {
        displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
        response.setHeader("Content-Disposition", "attachment;filename=" + displayFilename);
    }
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

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

From source file:cn.guoyukun.spring.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();//from  w  ww. j ava 2  s.  c om
    }

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

    String userAgent = request.getHeader("User-Agent");
    boolean isIE = (userAgent != null) && (userAgent.toLowerCase().indexOf("msie") != -1);

    response.reset();
    response.setHeader("Pragma", "No-cache");
    response.setHeader("Cache-Control", "must-revalidate, no-transform");
    response.setDateHeader("Expires", 0L);

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

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    if (isIE) {
        displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");
    } else {
        displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
        response.setHeader("Content-Disposition", "attachment;filename=" + 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:elw.web.ControllerElw.java

public static void storeContentHeaders(final FileBase fileBase, final HttpServletResponse resp) {
    final FileType fileType = IdNamed._.one(fileBase.getFileType());
    final String contentType;
    if (!fileType.getContentTypes().isEmpty()) {
        contentType = fileType.getContentTypes().get(0);
    } else {//w  w w  . ja  v  a  2s  . c  om
        contentType = fileType.isBinary() ? "binary/octet-stream" : "text/plain";
    }

    if (fileType.isBinary()) {
        resp.setContentType(contentType);
    } else {
        resp.setContentType(contentType + "; charset=UTF-8");
        resp.setCharacterEncoding("UTF-8");
    }

    resp.setContentLength(fileBase.getCouchFile(FileBase.CONTENT).getLength().intValue());
    resp.setHeader("Content-Disposition", "attachment;");
}

From source file:info.magnolia.cms.servlets.Spool.java

/**
 * Set content length. content type is set by the filters as defined in server/MIMEMappings.
 *
 * @param resource File to be returned to the client
 * @param response HttpServletResponse//from ww w  .j  ava 2 s .  co  m
 */
private void setResponseHeaders(File resource, HttpServletResponse response) {
    response.setContentLength((int) resource.length());
}