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:edu.cornell.mannlib.vitro.webapp.visualization.visutils.UtilityFunctions.java

public static void handleMalformedParameters(String errorMessage, HttpServletResponse response, Log log)
        throws IOException {

    GenericQueryMap errorDataResponse = new GenericQueryMap();
    errorDataResponse.addEntry("error", errorMessage);

    Gson jsonErrorResponse = new Gson();

    response.setContentType("application/octet-stream");
    response.getWriter().write(jsonErrorResponse.toJson(errorDataResponse));
}

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

protected static void leerConvocatoria(HttpServletRequest request, HttpServletResponse response)
        throws IOException {

    ConvocatoriaEntity e = CtrlUsuario.leerConvocatoria(request.getParameter("1")); // id de la convocatoria

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (e.getNombre().isEmpty()) {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", "La convocatoria ya no existe");
        out.print(obj);/* w w  w  .j a  v a2s  . c o  m*/
    } else {
        JSONObject obj = new JSONObject();
        obj.put("id", e.getIdConvocatoria());
        obj.put("nombre", e.getNombre());
        obj.put("descripcion", e.getDescripcion());
        obj.put("cupos", e.getCupos());
        obj.put("fechaFin", "" + e.getFechaFinRegistro());
        out.print(obj);
    }
}

From source file:com.vmware.identity.openidconnect.server.Shared.java

public static void writeJSONResponse(HttpServletResponse httpServletResponse, int statusCode,
        JSONObject jsonObject) throws IOException {
    Validate.notNull(httpServletResponse, "httpServletResponse");
    Validate.notNull(jsonObject, "jsonObject");

    PrintWriter writer = null;//from  w  ww  . ja v a2  s .  com
    try {
        httpServletResponse.setStatus(statusCode);
        httpServletResponse.setContentType("application/json");
        writer = httpServletResponse.getWriter();
        writer.print(jsonObject.toString());
    } finally {
        if (writer != null) {
            writer.close();
        }
    }
}

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

protected static void leerUsuariosMultiplesId(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList<UsuarioEntity> usuarios = new ArrayList<>();
    usuarios = CtrlAdmin.leerMultiplesUsuarios(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); // id del usuario

    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);/*  w w  w  .ja va2 s  .  c  o  m*/
    }
    out.print(list1);
}

From source file:com.google.gsa.valve.modules.utils.HTTPAuthZProcessor.java

/**
 * Includes the HTML document in the response
 * //w ww  .java  2 s .c o m
 * @param response HTTP response
 * @param method HTTP method
 * @param url document url
 * @param loginUrl login url
 * @param contentType content type
 * 
 * @throws IOException
 */
public static void returnHTML(HttpServletResponse response, HttpMethodBase method, String url, String loginUrl,
        String contentType) throws IOException {

    logger.debug("Returning an HTML document");

    //Get writer
    PrintWriter out = null;

    try {
        out = response.getWriter();
        if (out != null) {
            //set content
            out.print(method.getResponseBodyAsString());
            //close writer
            out.close();
            response.setHeader("Content-Type", contentType);
        }
    } catch (Exception e) {
        logger.error("Error when returning HTML content: " + e.getMessage(), e);
        //protection
        if (out != null) {
            out.close();
        }
    }

}

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

protected static void isInscritoTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    boolean b = CtrlUsuario.isInscritoTaller(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2")));
    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    JSONObject obj = new JSONObject();
    obj.put("is", b);
    out.print(obj);/*from www.  j a v  a  2s .co  m*/
}

From source file:myproject.MyServer.java

public static void Delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
    try {//from   ww w.  java2 s  .  c  o m
        String jsonString = IOUtils.toString(request.getInputStream());
        JSONObject json = (JSONObject) JSONValue.parse(jsonString);
        Long student_id = (Long) json.get("student_id");

        String query = String.format("DELETE FROM student " + "WHERE student_id=%d", student_id);

        database.runUpdate(query);

        JSONObject output = new JSONObject();
        output.put("result", true);
        response.getWriter().write(JSONValue.toJSONString(output));
    } 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.Usuario.Read.java

protected static void isInscritoconvocatoria(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    boolean b = CtrlUsuario.isInscritoconvocatoria(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2")));
    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    JSONObject obj = new JSONObject();
    obj.put("is", b);
    out.print(obj);/*www.ja v  a 2 s.co m*/
}

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

/**
 * ?json/* w ww .  j a v a2 s .c o 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:com.igrow.mall.common.util.Struts2Utils.java

/**
 * .//from  ww w . j a v a2s.  co  m
        
 * eg.
 * render("text/plain", "hello", "encoding:GBK");
 * render("text/plain", "hello", "no-cache:false");
 * render("text/plain", "hello", "encoding:GBK", "no-cache:false");
 * 
 * @param headers ??header??"encoding:""no-cache:",UTF-8true.
 */
public static void render(final String contentType, final String content, final String... headers) {
    try {
        //?headers?
        String encoding = ENCODING_DEFAULT;
        boolean noCache = NOCACHE_DEFAULT;
        for (String header : headers) {
            String headerName = StringUtils.substringBefore(header, ":");
            String headerValue = StringUtils.substringAfter(header, ":");

            if (StringUtils.equalsIgnoreCase(headerName, ENCODING_PREFIX)) {
                encoding = headerValue;
            } else if (StringUtils.equalsIgnoreCase(headerName, NOCACHE_PREFIX)) {
                noCache = Boolean.parseBoolean(headerValue);
            } else
                throw new IllegalArgumentException(headerName + "??header");
        }

        HttpServletResponse response = ServletActionContext.getResponse();

        //headers?
        String fullContentType = contentType + ";charset=" + encoding;
        response.setContentType(fullContentType);
        if (noCache) {
            response.setHeader("Pragma", "No-cache");
            response.setHeader("Cache-Control", "no-cache");
            response.setDateHeader("Expires", 0);
        }

        response.getWriter().write(content);
        response.getWriter().flush();

    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    }
}