Example usage for javax.servlet.http HttpServletResponse getWriter

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:com.lll.util.ServletUtils.java

/**
 * .//from   ww w  . ja va2  s  .c o 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(HttpServletResponse response, final String contentType, final String content,
        final String... headers) {
    initResponseHeader(response, contentType, headers);
    try {
        response.getWriter().write(content);
        response.getWriter().flush();
    } catch (IOException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}

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

protected static void eliminarConvocatoria(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlAdmin.eliminarConvocatoria(Integer.parseInt(request.getParameter("1"))); // id

    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);/*  ww  w.  j a  va  2s.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: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 w  w .j a  v a2s.c  o m
    }

    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:com.age.core.utils.web.ServletUtils.java

/**
 * ?json/*w ww. j a va  2 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);
    try {
        response.setContentType("text/plain");
        response.getWriter().write(jsonStr);
        response.getWriter().flush();
        response.getWriter().close();
    } catch (IOException e) {
    }
}

From source file:com.aaasec.sigserv.csspserver.SpServlet.java

private static void respond(HttpServletResponse response, String responseData) {
    try {// w  w w  . ja v a2s. c  om
        response.getWriter().write(responseData);
        response.getWriter().close();
    } catch (IOException ex) {
        Logger.getLogger(SpServlet.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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

protected static void obtenerTotalTalleres(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    int numC = CtrlUsuario.obtenerTotalTalleres();
    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    JSONObject obj = new JSONObject();
    obj.put("total", numC);
    out.print(obj);//from   w  ww . j  a  va2 s .c  o m
}

From source file:com.liusoft.dlog4j.action.ActionBase.java

/**
 * ??/* w w w.  ja va 2 s.  c  o m*/
 * @param res
 * @param msg
 * @throws IOException
 */
protected static void outputPlainMsg(HttpServletResponse res, String msg) throws IOException {
    res.setContentType("text/plain;charset=UTF-8");
    res.getWriter().print(msg);
}

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

protected static void obtenerTotalConvocatorias(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    int numC = CtrlUsuario.obtenerTotalConvocatorias();
    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    JSONObject obj = new JSONObject();
    obj.put("total", numC);
    out.print(obj);//from   www .j  a  v a2 s .  com
}

From source file:com.eucalyptus.www.X509Download.java

public static void hasError(int statusCode, String message, HttpServletResponse response) {
    try {/*from  w ww  .  j  a  v a  2s  .  c o m*/
        response.setStatus(statusCode);
        response.setContentType("text/plain; charset=utf-8");
        response.getWriter().print(getError(message));
        response.getWriter().flush();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:gov.nist.appvet.tool.synchtest.util.ReportUtil.java

/**
 * This method returns report information to the AppVet ToolAdapter as ASCII
 * text and cannot attach a file to the response.
 *//*from ww w.  j  ava  2 s  .c om*/
public static boolean sendInHttpResponse(HttpServletResponse response, String reportText,
        ToolStatus reportStatus) {
    try {
        response.setStatus(HttpServletResponse.SC_OK); // HTTP 200
        response.setContentType("text/html");
        response.setHeader("apprisk", reportStatus.name());
        PrintWriter out = response.getWriter();
        out.println(reportText);
        out.flush();
        out.close();
        log.info("Returned report");
        return true;
    } catch (IOException e) {
        log.error("Report not sent: " + e.toString());
        return false;
    }
}