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:MyServlet.java

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

    out.println("<HTML>");
    out.println("<HEAD>");
    out.println("<TITLE>");
    out.println("A Web Page");
    out.println("</TITLE>");
    out.println("</HEAD>");
    out.println("<BODY");

    Cookie[] cookies = request.getCookies();
    boolean foundCookie = false;

    for (int i = 0; i < cookies.length; i++) {
        Cookie cookie1 = cookies[i];/*from   w w w  . j a  v  a  2 s .c o m*/
        if (cookie1.getName().equals("color")) {
            out.println("bgcolor = " + cookie1.getValue());
            foundCookie = true;
        }
    }

    if (!foundCookie) {
        Cookie cookie1 = new Cookie("color", "cyan");
        cookie1.setMaxAge(24 * 60 * 60);
        response.addCookie(cookie1);
    }

    out.println(">");
    out.println("<H1>Setting and Reading Cookies</H1>");
    out.println("This page will set its background color using a cookie when reloaded.");
    out.println("</BODY>");
    out.println("</HTML>");
}

From source file:com.ibm.util.merge.web.InitializeServlet.java

@Override
public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException {
    res.getWriter().write("Initialized");
}

From source file:tomekkup.helenos.security.web.authentication.AbstractJsonAuthenticationHandler.java

protected final void writeResult(HttpServletResponse response, Authentication authentication)
        throws IOException {
    response.setHeader("Content-Type", "application/json");
    PrintWriter writer = response.getWriter();
    objectMapper.writeValue(writer, (authentication != null ? authentication.getAuthorities() : null));
    writer.flush();// w  w w . j  av a 2  s . c  om
}

From source file:edu.lafayette.metadb.web.permission.ShowProjectPermission.java

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*//*from   ww w.  j  av a2 s. c o  m*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // TODO Auto-generated method stub
    PrintWriter out = response.getWriter();
    String userName = request.getParameter("username");
    List<String> projectList = ProjectsDAO.getProjectList();
    JSONArray list = new JSONArray();
    //      String bigList = "";
    ArrayList<Permission> permissionList = PermissionManDAO.getAllProjectPermission(userName);
    if (permissionList != null && !permissionList.isEmpty())
        for (Permission p : permissionList)
            projectList.remove(p.getProjectName());
    for (String s : projectList)
        list.put(s);
    //         bigList += "<option name='" + s + "'>" + s + "</option>";
    out.print(list);
    out.flush();
}

From source file:SessionDisplay.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, java.io.IOException {

    response.setContentType("text/html");
    java.io.PrintWriter out = response.getWriter();
    HttpSession session = request.getSession();
    Date creationTime = new Date(session.getCreationTime());
    Date lastAccessed = new Date(session.getLastAccessedTime());
    Date now = new Date();
    DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM);

    out.println("<html>");
    out.println("<head>");
    out.println("<title>Displaying the Session Creation and Last-Accessed Time</title>");
    out.println("</head>");
    out.println("<body>");
    out.println("<h2>Session Creation and Last-Accessed Time</h2>");
    out.println("The time and date now is: " + formatter.format(now) + "<br><br>");
    out.println("The session creation time: HttpSession.getCreationTime( ): " + formatter.format(creationTime)
            + "<br><br>");
    out.println("The last time the session was accessed: HttpSession.getLastAccessedTime( ): "
            + formatter.format(lastAccessed));
    out.println("</body>");
    out.println("</html>");

}

From source file:org.easyj.rest.view.EasyView.java

protected void writeResponse(HttpServletResponse response, String content) throws IOException {
    response.getWriter().print(content);
}

From source file:com.paperfood.controller.RegisterUser.java

/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
 *      response)/*from w ww . j  a  v a  2  s  . c o m*/
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    PrintWriter out = response.getWriter();
    JSONObject resp = new JSONObject();
    MD5Hash md5;
    String status = "";
    try {
        md5 = new MD5Hash();

        PaperFoodUser user = new PaperFoodUser();
        user.setFirstName(request.getParameter("txtFname"));
        user.setLastName(request.getParameter("txtLname"));
        user.setEmail(request.getParameter("txtEmail"));
        user.setPassword(md5.getStringHash(request.getParameter("txtPass")));

        DatabaseManager dm = new DatabaseManager();
        dm.open();
        if (dm.isUserMailExist(user.getEmail()))
            status = "invalid";
        else {
            dm.insertUser(user);
            status = "success";
        }
        dm.close();
    } catch (Exception e) {
        status = "fail";
        e.printStackTrace();
    }

    try {
        resp.put("status", status);
    } catch (JSONException e) {
        e.printStackTrace();
    }
    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");
    out.println(resp);
}

From source file:Properties.java

public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    PrintWriter out = resp.getWriter();
    out.println("<html>");
    out.println("<head>");
    out.println("<title>My First Servlet</title>");
    out.println("</head>");
    out.println("<h2><center>");
    out.println("Information About You</center></h2>");
    out.println("<br>");

    out.println("<center><table border>");
    out.println("<tr>");
    out.println("<td>Method</td>");
    out.println("<td>" + req.getMethod() + "</td>");
    out.println("</tr>");

    out.println("<tr>");
    out.println("<td>User</td>");
    out.println("<td>" + req.getRemoteUser() + "</td>");
    out.println("</tr>");

    out.println("<tr>");
    out.println("<td>Client</td>");
    out.println("<td>" + req.getRemoteHost() + "</td>");
    out.println("</tr>");

    out.println("<tr>");
    out.println("<td>Protocol</td>");
    out.println("<td>" + req.getProtocol() + "</td>");
    out.println("</tr>");

    java.util.Enumeration e = req.getParameterNames();
    while (e.hasMoreElements()) {
        String name = (String) e.nextElement();
        out.println("<tr>");
        out.println("<td>Parameter '" + name + "'</td>");
        out.println("<td>" + req.getParameter(name) + "</td>");
        out.println("</tr>");
    }//from   w  w w  . ja v a 2s.com

    out.println("</table></center><br><hr><br>");

    out.println("<h2><center>");
    out.println("Server Properties</center></h2>");
    out.println("<br>");

    out.println("<center><table border width=80%>");

    java.util.Properties props = System.getProperties();
    e = props.propertyNames();

    while (e.hasMoreElements()) {
        String name = (String) e.nextElement();
        out.println("<tr>");
        out.println("<td>" + name + "</td>");
        out.println("<td>" + props.getProperty(name) + "</td>");
        out.println("</tr>");
    }
    out.println("</table></center>");

    out.println("</html>");
    out.flush();
}

From source file:MyServlet.java

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

    HttpSession session = req.getSession();

    Integer count = (Integer) session.getAttribute("snoop.count");
    if (count == null)
        count = new Integer(1);
    else/*www.j  av a2 s  . c o  m*/
        count = new Integer(count.intValue() + 1);
    session.setAttribute("snoop.count", count);

    out.println("<HTML><HEAD><TITLE>SessionSnoop</TITLE></HEAD>");
    out.println("<BODY><H1>Session Snoop</H1>");

    out.println("You've visited this page " + count + ((count.intValue() == 1) ? " time." : " times."));

    out.println("<P>");

    out.println("<H3>Here is your saved session data:</H3>");
    Enumeration e = session.getAttributeNames();
    while (e.hasMoreElements()) {
        String name = (String) e.nextElement();
        out.println(name + ": " + session.getAttribute(name) + "<BR>");
    }

    out.println("<H3>Here are some vital stats on your session:</H3>");
    out.println("Session id: " + session.getId() + " <I>(keep it secret)</I><BR>");
    out.println("New session: " + session.isNew() + "<BR>");
    out.println("Timeout: " + session.getMaxInactiveInterval());
    out.println("<I>(" + session.getMaxInactiveInterval() / 60 + " minutes)</I><BR>");
    out.println("Creation time: " + session.getCreationTime());
    out.println("<I>(" + new Date(session.getCreationTime()) + ")</I><BR>");
    out.println("Last access time: " + session.getLastAccessedTime());
    out.println("<I>(" + new Date(session.getLastAccessedTime()) + ")</I><BR>");

    out.println("Requested session ID from cookie: " + req.isRequestedSessionIdFromCookie() + "<BR>");
    out.println("Requested session ID from URL: " + req.isRequestedSessionIdFromURL() + "<BR>");
    out.println("Requested session ID valid: " + req.isRequestedSessionIdValid() + "<BR>");

    out.println("<H3>Test URL Rewriting</H3>");
    out.println("Click <A HREF=\"" + res.encodeURL(req.getRequestURI()) + "\">here</A>");
    out.println("to test that session tracking works via URL");
    out.println("rewriting even when cookies aren't supported.");

    out.println("</BODY></HTML>");
}

From source file:cf.spring.HealthzHandlerMapping.java

public HealthzHandlerMapping(int order) {
    setOrder(order);/*from   w w  w .j av a 2  s.  c o  m*/

    registerHandler("/healthz", new HttpRequestHandler() {
        @Override
        public void handleRequest(HttpServletRequest httpServletRequest,
                HttpServletResponse httpServletResponse) throws ServletException, IOException {
            httpServletResponse.setContentType("text/plain;charset=utf-8");
            httpServletResponse.getWriter().write("ok");
        }
    });
}