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:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    res.setContentType("text/html");
    PrintWriter out = res.getWriter();

    String code = null, message = null, type = null, uri = null;
    Object codeObj, messageObj, typeObj;
    Throwable throwable;//  w ww. j a v  a 2 s. c o m

    // Retrieve the three possible error attributes, some may be null
    codeObj = req.getAttribute("javax.servlet.error.status_code");
    messageObj = req.getAttribute("javax.servlet.error.message");
    typeObj = req.getAttribute("javax.servlet.error.exception_type");
    throwable = (Throwable) req.getAttribute("javax.servlet.error.exception");
    uri = (String) req.getAttribute("javax.servlet.error.request_uri");

    if (uri == null) {
        uri = req.getRequestURI(); // in case there's no URI given
    }

    // Convert the attributes to string values
    if (codeObj != null)
        code = codeObj.toString();
    if (messageObj != null)
        message = messageObj.toString();
    if (typeObj != null)
        type = typeObj.toString();

    // The error reason is either the status code or exception type
    String reason = (code != null ? code : type);

    out.println("<HTML>");
    out.println("<HEAD><TITLE>" + reason + ": " + message + "</TITLE></HEAD>");
    out.println("<BODY>");
    out.println("<H1>" + reason + "</H1>");
    out.println("<H2>" + message + "</H2>");
    out.println("<PRE>");
    if (throwable != null) {
        throwable.printStackTrace(out);
    }
    out.println("</PRE>");
    out.println("<HR>");
    out.println("<I>Error accessing " + uri + "</I>");
    out.println("</BODY></HTML>");
}

From source file:fi.arcusys.oulu.web.AjaxView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> map, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    if (map == null || map.isEmpty()) {
        JSONObject.fromObject("{}").write(response.getWriter());
        return;//from   w w  w . j a va 2 s. c o  m
    }

    JSON json = JSONSerializer.toJSON(map);
    json.write(response.getWriter());
}

From source file:net.cristcost.study.services.ServiceHttpRequestHandler.java

@Override
public void handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    response.setContentType("text/plain");

    PrintWriter writer = response.getWriter();

    ServiceTestUtil.testSecurity(this.getClass().getSimpleName(), request, writer, authenticationManager,
            services);/*from  w ww. j a  v  a 2s .c o  m*/
}

From source file:net.cristcost.study.services.ServiceServlet.java

@Override
public void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    response.setContentType("text/plain");

    PrintWriter writer = response.getWriter();

    ServiceTestUtil.testSecurity(this.getClass().getSimpleName(), request, writer, authenticationManager,
            services);/*from  www  .  j a  v  a  2s. c o m*/
}

From source file:pl.maciejwalkowiak.plist.spring.PlistView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    String result = plistSerializer.toXmlPlist(filterModel(model));

    response.getWriter().write(result);
}

From source file:arena.web.view.ErrorView.java

@SuppressWarnings("unchecked")
protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    if (this.message != null) {
        response.setStatus(this.errorCode);
        response.getWriter()
                .append(ServletUtils.replaceWildcards(this.message, this.allowRequestArgs, model, request));
        response.flushBuffer();/*from  ww  w.j  av a2s . c o  m*/
    } else {
        response.sendError(this.errorCode);
    }
}

From source file:com.mykarsol.appconnectivity.imageload.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//from www  .ja va  2  s.  c o m
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */

    }

}

From source file:ErrorDisplay.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    res.setContentType("text/html");
    PrintWriter out = res.getWriter();

    String code = null, message = null, type = null, uri = null;
    Object codeObj, messageObj, typeObj;
    Throwable throwable;//from  ww w  .j a  va  2s  .  co  m

    codeObj = req.getAttribute("javax.servlet.error.status_code");
    messageObj = req.getAttribute("javax.servlet.error.message");
    typeObj = req.getAttribute("javax.servlet.error.exception_type");
    throwable = (Throwable) req.getAttribute("javax.servlet.error.exception");
    uri = (String) req.getAttribute("javax.servlet.error.request_uri");

    if (uri == null) {
        uri = req.getRequestURI(); // in case there's no URI given
    }

    // Convert the attributes to string values
    if (codeObj != null)
        code = codeObj.toString();
    if (messageObj != null)
        message = messageObj.toString();
    if (typeObj != null)
        type = typeObj.toString();

    // The error reason is either the status code or exception type
    String reason = (code != null ? code : type);

    out.println("<HTML>");
    out.println("<HEAD><TITLE>" + reason + ": " + message + "</TITLE></HEAD>");
    out.println("<BODY>");
    out.println("<H1>" + reason + "</H1>");
    out.println("<H2>" + message + "</H2>");
    out.println("<PRE>");
    if (throwable != null) {
        throwable.printStackTrace(out);
    }
    out.println("</PRE>");
    out.println("<HR>");
    out.println("<I>Error accessing " + uri + "</I>");
    out.println("</BODY></HTML>");
}

From source file:net.nan21.dnet.core.web.security.DefaultNotAuthenticatedEntryPoint.java

@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException, ServletException {

    response.setStatus(HttpServletResponse.SC_FORBIDDEN);
    response.getWriter().write("Not authenticated");
    response.flushBuffer();//from  ww  w .  j  a  v a  2 s.  c  o m

}

From source file:edu.lafayette.metadb.web.dataman.ShowExport.java

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*//*from w w  w. j a v a 2 s .com*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // TODO Auto-generated method stub
    PrintWriter out = response.getWriter();
    JSONObject output = new JSONObject();
    try {
        String projname = (String) request.getSession(false).getAttribute(Global.SESSION_PROJECT);
        int max = ItemsDAO.nextItemNumber(projname) - 1;
        output.put("max", max);
        output.put("projname", projname);
    } catch (Exception e) {
        MetaDbHelper.logEvent(e);
    }
    out.print(output);
    out.close();
}