Example usage for javax.servlet.http HttpServletResponse setContentType

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

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Introduction

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

Prototype


public void setContentType(String type);

Source Link

Document

Sets the content type of the response being sent to the client, if the response has not been committed yet.

Usage

From source file:com.sunway.cbm.util.ServletUtils.java

/**
 * ?json//  www  .j  a  v  a2 s .  co m
 * 
 * @param response
 * @param object
 */
public static void responseJson(HttpServletResponse response, Object object) {
    // JsonMapper jsonMapper = JsonMapper.buildNormalMapper();
    // String jsonStr = jsonMapper.toJson(object);
    String jsonStr = JSON.toJSONStringWithDateFormat(object, "yyyy-MM-dd HH:mm:ss", features);
    try {
        response.setContentType("text/plain");
        response.getWriter().write(jsonStr);
        response.getWriter().flush();
        response.getWriter().close();
    } catch (IOException e) {
        logger.error(e.getMessage());
        e.printStackTrace();
    }
    logger.debug(jsonStr);
}

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void registrarUsuarioTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.registrarATallerUsuario(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); // parameter 1: idUsuario param2: idTaller

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);//from ww  w .j  a  va 2 s .co m
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void registrarDocenteTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.registrarATallerDocente(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); // parameter 1: idUsuarioDocente param2: idTaller

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);/*from  ww w . j a v a2  s .  c om*/
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

From source file:co.com.realtech.mariner.util.jsf.file.FileDownloader.java

/**
 * Descargar excel a travs del FacesContext.
 *
 * @param context//  w  w  w  .j  a  va  2s. c  o m
 * @param bytes
 * @param nombreArchivo
 */
private static void descargarArchivo(FacesContext context, byte[] bytes, String nombreArchivo,
        String extension) {
    ExternalContext externalContext = context.getExternalContext();
    HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
    try {
        try (ServletOutputStream servletOutputStream = response.getOutputStream()) {
            response.addHeader("Content-Type", "application/" + extension);
            response.addHeader("Content-Disposition",
                    "attachment; filename=" + nombreArchivo + "." + extension);
            response.setContentLength(bytes.length);
            response.setContentType("application/" + extension);
            servletOutputStream.write(bytes);
            servletOutputStream.flush();
            context.responseComplete();
        }
    } catch (Exception e) {
        System.out.println("Error enviando reporte al cliente, error causado por " + e);
    }
}

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Admin.CUDEventos.java

protected static void iniciarWSC(HttpServletRequest request, HttpServletResponse response) throws IOException {
    ArrayList<UsuarioEntity> usuarios = CtrlAdmin.iniciarWSC(Integer.parseInt(request.getParameter("1")), //id evento
            Integer.parseInt(request.getParameter("2")), //tamao tabla
            Integer.parseInt(request.getParameter("3"))//pagina
    ); // parameter 1: documentoDocente param2: idTaller

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();

    JSONArray list1 = new JSONArray();
    for (UsuarioEntity usuario : usuarios) {
        JSONObject obj = new JSONObject();
        obj.put("id", usuario.getIdUsuario());
        obj.put("titulo", usuario.getNombres() + " " + usuario.getApellidos());
        list1.add(obj);/*from ww  w.  ja  v a 2s .  c o m*/
    }
    out.print(list1);
}

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void leerMultiplesTalleres(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList<TallerEntity> talleres = new ArrayList<>();
    talleres = CtrlUsuario.leerMultiplesTalleres(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); // posicin y tamao

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    System.out.println("Talleres: " + talleres.size());
    JSONArray list1 = new JSONArray();
    for (TallerEntity taller : talleres) {
        JSONObject obj = new JSONObject();
        obj.put("id", taller.getIdTaller());
        obj.put("titulo", taller.getNombre());
        list1.add(obj);/*from  w  ww  . ja v a2s  . c om*/
    }
    out.print(list1);
}

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Admin.CUDEventos.java

protected static void consultarUsuariosEnConvocatoriaId(HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    ArrayList<UsuarioEntity> usuarios = new ArrayList<>();
    usuarios = CtrlAdmin.obtenerUsuariosEnConvocatoria(Integer.parseInt(request.getParameter("3")), //id evento
            Integer.parseInt(request.getParameter("2")), //tamao tabla
            Integer.parseInt(request.getParameter("1"))//pagina
    );//w  ww .  j  a va 2  s  .co m

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();

    JSONArray list1 = new JSONArray();
    for (UsuarioEntity usuario : usuarios) {
        JSONObject obj = new JSONObject();
        obj.put("id", usuario.getIdUsuario());
        obj.put("titulo", usuario.getNombres() + " " + usuario.getApellidos());
        list1.add(obj);
    }
    out.print(list1);
}

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

private static void writeBash(String wgetText, String filename, HttpServletResponse response) {
    try {//from   w  w  w  . j a v a 2 s .c  o m
        //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:com.fjn.helper.common.io.file.common.FileUpAndDownloadUtil.java

public static void downloadToBrowser(String filename, String realpath, HttpServletRequest request,
        HttpServletResponse response) {
    // ?MIME TYPE?
    //try {/*from   ww  w.  j  av  a 2s  .  c o  m*/
    //      mimetypesMap=new MimetypesFileTypeMap(request.getSession().getServletContext().getRealPath("WEB-INF/my.mime.types"));
    mimetypesMap = new MimetypesFileTypeMap();
    //} catch (IOException e1) {
    //   e1.printStackTrace();
    //}

    //   response.setCharacterEncoding("UTF-8");
    response.setContentType(mimetypesMap.getContentType(filename));
    response.addHeader("Content-Disposition", "attachment;filename=" + toUTF8(filename));
    FileInputStream in = null;
    OutputStream out = null;
    try {
        /*   ????
           BufferedReader in = new BufferedReader(new InputStreamReader(
                 new FileInputStream(new File(realpath))));
           BufferedWriter out = new BufferedWriter(new OutputStreamWriter(
                 response.getOutputStream()));
           int length = -1;
           char[] chs = new char[1024];
           while ((length = in.read(chs)) != -1) {
              out.write(chs, 0, length);
           }
        */
        in = new FileInputStream(new File(realpath));
        out = response.getOutputStream();
        int length = -1;
        byte[] bs = new byte[1024];
        while ((length = in.read(bs)) != -1) {
            out.write(bs, 0, length);
        }

        out.flush();

    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (out != null)
                out.close();
            if (in != null)
                in.close();
        } catch (Exception ex) {

        }
    }

}

From source file:com.cisco.ca.cstg.pdi.utils.Util.java

/**
 * This method is used to download files from specified path
 * @param response//w  ww .j av a 2 s. c  om
 * @param archiveFile
 */
public static void downloadArchiveFile(HttpServletResponse response, File archiveFile) {
    if (archiveFile.isFile()) {
        response.reset();
        response.setContentType("application/zip");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + archiveFile.getName() + "\"");
        FileInputStream is = null;
        ServletOutputStream op = null;
        try {
            op = response.getOutputStream();
            double dLength = archiveFile.length();
            int iLength = 0;
            int num_read = 0;

            if (dLength >= Integer.MIN_VALUE && dLength <= Integer.MAX_VALUE) {
                iLength = (int) dLength;
            }
            byte[] arBytes = new byte[iLength];
            is = new FileInputStream(archiveFile);

            while (num_read < iLength) {
                int count = is.read(arBytes, num_read, iLength - num_read);
                if (count < 0) {
                    throw new IOException("end of stream reached");
                }
                num_read += count;
            }
            op.write(arBytes);
            op.flush();
        } catch (IOException e) {
            LOGGER.error(e.getMessage(), e);
        } finally {
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    LOGGER.error(e.getMessage(), e);
                }
            }
            if (null != op) {
                try {
                    op.close();
                } catch (IOException e) {
                    LOGGER.error(e.getMessage(), e);
                }
            }
        }
    }
}