Example usage for javax.servlet.http HttpServletResponse getWriter

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

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Introduction

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

Prototype

public PrintWriter getWriter() throws IOException;

Source Link

Document

Returns a PrintWriter object that can send character text to the client.

Usage

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

private static void writeBash(String wgetText, String filename, HttpServletResponse response) {
    try {//from   w  w w .ja  v  a  2  s .  co 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.discovery.darchrow.http.ResponseUtil.java

/**
 * .//ww w  . j a va 2  s. co  m
 *
 * @param response
 *            HttpServletResponse
 * @param content
 *            
 * @param contentType
 *            the content type
 * @param characterEncoding
 *            the character encoding
 * @throws UncheckedIOException
 *             the unchecked io exception
 * @see javax.servlet.ServletResponse#getWriter()
 * @see java.io.PrintWriter#print(Object)
 * @see java.io.PrintWriter#flush()
 * @since 1.0.9
 */
public static void write(HttpServletResponse response, Object content, String contentType,
        String characterEncoding) throws UncheckedIOException {
    try {
        //? ? getWriter?
        if (Validator.isNotNullOrEmpty(contentType)) {
            response.setContentType(contentType);
        }
        if (Validator.isNotNullOrEmpty(characterEncoding)) {
            response.setCharacterEncoding(characterEncoding);
        }

        PrintWriter printWriter = response.getWriter();
        printWriter.print(content);
        printWriter.flush();

        //http://www.iteye.com/problems/56543
        //tomcatjetty?? printWriter.close();
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

From source file:com.palantir.gerrit.gerritci.servlets.JobsServlet.java

public static boolean safetyCheck(int responseCode, HttpServletResponse res, String projectName)
        throws IOException {
    if (responseCode != 200) {
        JsonObject errorMsg = new JsonObject();
        if (responseCode == 404) {
            logger.error("Could not find project with name: " + projectName);
            errorMsg = makeErrorJobObject("Could not find project with name: " + projectName);
            res.getWriter().write(errorMsg.toString());
        } else {/*from  w w  w.  j  a v a 2s  .co m*/
            logger.error("User Authentication Error ");
            errorMsg = makeErrorJobObject("Permission Denied: User Authentication Error ");
            res.getWriter().write(errorMsg.toString());
        }
        return false;
    }
    return true;
}

From source file:myproject.MyServer.java

public static void Update(HttpServletRequest request, HttpServletResponse response) throws IOException {
    try {//w ww .ja  va 2 s  .co  m
        String jsonString = IOUtils.toString(request.getInputStream());
        JSONObject json = (JSONObject) JSONValue.parse(jsonString);
        Long student_id = (Long) json.get("student_id");
        String student_name = (String) json.get("student_name");
        Long regno = (Long) json.get("regno");
        Double cgpa = (Double) json.get("cgpa");

        String query = String.format(
                "UPDATE student " + "SET student_name='%s'," + "regno=%d," + "cgpa=%f " + "WHERE student_id=%d",
                JSONValue.escape(student_name), regno, cgpa, student_id);

        database.runUpdate(query);

        String result = database.getStudent(regno);
        response.getWriter().write(result);
    } catch (Exception ex) {
        JSONObject output = new JSONObject();
        output.put("error", "Connection failed: " + ex.getMessage());
        response.getWriter().write(JSONValue.toJSONString(output));
    }
}

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

protected static void crearUsuario(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println(request.getParameter("5"));
    ArrayList r = CtrlAdmin.crearUsuario(request.getParameter("1"), //Nombre
            request.getParameter("2"), //Apellidos
            request.getParameter("3"), //Tipo de documento
            request.getParameter("4"), //documento
            request.getParameter("5"), //Correo= usuario
            request.getParameter("6"), //passworld
            request.getParameter("7").charAt(0)//rol
    );/*from ww  w .  j av  a2s.c  o  m*/

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        if (r.get(1) == "usuario") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El usuario ya existe");
        } else if (r.get(1) == "contrasena") {
            obj.put("isError", true);
            obj.put("errorDescrip", "La contrasea es invalida");
        } else if (r.get(1) == "documento") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El documento ya est registrado");
        } else if (r.get(1) == "tipoDocumento") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El tipo de documento es invalido");
        } else if (r.get(1) == "correo") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El correo ya est registrado");
        } else if (r.get(1) == "correo1") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El correo no es valido");
        } else if (r.get(1) == "nombre") {
            obj.put("isError", true);
            obj.put("errorDescrip", "Los nombres o apellidos son incorrectos");
        } else if (r.get(1) == "rol") {
            obj.put("isError", true);
            obj.put("errorDescrip", "El rol es invalido, los posibles valores son: E, P y A");
        } else
            Util.errordeRespuesta(r, out);
        out.print(obj);
    } 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.Admin.CUDEventos.java

protected static void crearTaller(HttpServletRequest request, HttpServletResponse response) throws IOException {
    ArrayList r = CtrlAdmin.crearTaller(request.getParameter("1"), // nombre
            request.getParameter("2"), // descripcin
            request.getParameter("4"), // fin registro (Fecha hasta donde est permitido registrarse)
            request.getParameter("3"), // inicio del taller
            request.getParameter("4"), // fin del taller
            Integer.parseInt(request.getParameter("5")), // costo
            Integer.parseInt(request.getParameter("6")) // cupos
    );//from   w w  w.j  a v  a2  s .  co  m

    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);
    } 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:com.sunchenbin.store.feilong.servlet.http.ResponseUtil.java

/**
 * .//  w  w  w.  j  av  a 2 s. c  om
 *
 * @param response
 *            HttpServletResponse
 * @param content
 *            
 * @param contentType
 *            the content type
 * @param characterEncoding
 *            the character encoding
 * @see javax.servlet.ServletResponse#getWriter()
 * @see java.io.PrintWriter#print(Object)
 * @see java.io.PrintWriter#flush()
 * @since 1.0.9
 */
public static void write(HttpServletResponse response, Object content, String contentType,
        String characterEncoding) {
    try {
        //? ? getWriter?
        if (Validator.isNotNullOrEmpty(contentType)) {
            response.setContentType(contentType);
        }
        if (Validator.isNotNullOrEmpty(characterEncoding)) {
            response.setCharacterEncoding(characterEncoding);
        }

        PrintWriter printWriter = response.getWriter();
        printWriter.print(content);
        printWriter.flush();

        //http://www.iteye.com/problems/56543
        //tomcatjetty?? printWriter.close();
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

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

protected static void actualizarTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlAdmin.actualizarTaller(Integer.parseInt(request.getParameter("0")), // id
            request.getParameter("1"), // nombre
            request.getParameter("2"), // descripcin
            request.getParameter("3"), // fin registro (Fecha hasta donde est permitido registrarse)
            request.getParameter("4"), // inicio del taller
            Integer.parseInt(request.getParameter("5")), // costo
            Integer.parseInt(request.getParameter("6")) // cupos
    );/*from  w w  w.  j  a  va2 s  . co m*/

    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);
    } 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:de.escidoc.core.aa.servlet.Login.java

/**
 * Writes the provided page content to the writer of the {@link HttpServletResponse}. The http status code is set to
 * the provided value.//from  w  w w  .  j a v  a  2s.  c  om
 *
 * @param response   The {@link HttpServletResponse}.
 * @param page       The page to write.
 * @param statusCode The http status code to set.
 * @throws IOException Thrown in case of a failed i/o operation.
 */
private static void sendResponse(final HttpServletResponse response, final String page, final int statusCode)
        throws IOException {
    final PrintWriter writer = response.getWriter();
    writer.print(page);
    response.setStatus(statusCode);
}

From source file:de.escidoc.core.aa.servlet.Login.java

/**
 * Initializes the redirect to the provided URL and writes the provided page content to the writer of the {@link
 * HttpServletResponse}. The http status code is set to SEE_OTHER.
 *
 * @param response    The {@link HttpServletResponse}.
 * @param page        The page to write.
 * @param redirectUrl The URL to that the user shall be redirected.
 * @throws IOException Thrown in case of a failed i/o operation.
 *//*from w w w  .j av a  2 s  .  co  m*/
private static void sendRedirectingResponse(final HttpServletResponse response, final String page,
        final String redirectUrl) throws IOException {

    final PrintWriter writer = response.getWriter();
    writer.print(page);
    // TODO: which response/status code? sendRedirect uses 302. 307 must
    // not be used since this results in forwarding the post of login data.
    // Maybe, 303 should be used to force the browser to redirect with GET,
    // as redirect with POST is prohibited?
    // Or should a form be returned and the user posts the handle back to
    // the application (similar to Shibboleth's Browser/Post profile)?
    response.setStatus(HttpServletResponse.SC_SEE_OTHER);
    response.setHeader("Location", redirectUrl);
    //        response.flushBuffer();
}