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 req, HttpServletResponse res) throws ServletException, IOException {

    res.setContentType("text/html");

    // Ask for a 16K byte response buffer; do not set the content length
    res.setBufferSize(16 * 1024);/*from  w ww  . jav a 2 s .c  om*/

    PrintWriter out = res.getWriter();
    out.println("<HTML>");
    out.println("<HEAD><TITLE>Hello World</TITLE></HEAD>");
    out.println("<BODY>");
    out.println("<BIG>Less than 16K of response body</BIG>");
    out.println("</BODY></HTML>");
}

From source file:com.sentinel.rest.handlers.HttpLogoutSuccessHandler.java

@Override
public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response,
        Authentication authentication) throws IOException, ServletException {
    LOG.trace("Method: onLogoutSuccess called.");

    response.setStatus(HttpServletResponse.SC_OK);
    response.getWriter().flush();

    LOG.trace("Method: onLogoutSuccess finished.");
}

From source file:workspace.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//  ww  w .  j av  a2s.  c  om
 * @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 {
    PrintWriter out = response.getWriter();
    String class1 = request.getParameter("class");
    String hour = request.getParameter("hour");
    HttpSession session = request.getSession(false);
    if (session == null) {
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    } else {
        if (hour == null) {
            try {
                current(out, class1);
            } catch (Exception e) {
            }
        } else {
            try {
                importlast(out, class1, hour);
            } catch (Exception e) {
            }
        }
    }
}

From source file:edu.lafayette.metadb.web.authentication.CheckSession.java

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/// w w w . ja  v  a 2 s.  co  m
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // TODO Auto-generated method stub
    PrintWriter out = response.getWriter();

    JSONObject output = new JSONObject();
    try {
        HttpSession session = request.getSession(false);
        if (session != null && checkUser(session)) {
            String name = (String) session.getAttribute(Global.SESSION_USERNAME);
            User user = UserManDAO.getUserData(name);
            long last_login = ((Long) session.getAttribute(Global.SESSION_LOGIN_TIME)).longValue();
            Date date = new Date(last_login + 5 * 3600 * 1000);
            output.put("username", name);
            output.put("admin", user.getType().equals(Global.USER_ADMIN));
            output.put("local", user.getAuthType().equals("Local"));
            output.put("last_login", date.toString());
            output.put("success", true);
            output.put("parser_running", MetaDbHelper.getParserStatus());
            output.put("record_count", MetaDbHelper.getItemCount());
            output.put("log_types", Global.eventTypes);
            String[] last_page = UserManDAO.getLastProj(name).split(";");
            if (last_page.length > 1) {
                output.put("last_proj", last_page[0]);
                output.put("last_item", last_page[1]);
            }
        } else {
            output.put("success", false);
            output.put("message", "Your session has expired");
        }
        out.print(output);
    } catch (Exception e) {
        MetaDbHelper.logEvent(e);
    }
    response.setContentType("application/x-json");
    out.flush();
}

From source file:AllEmployeesServlet.java

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    out.println("<html>");
    out.println("<head><title>All Employees</title></head>");
    out.println("<body>");
    out.println("<center><h1>All Employees</h1>");
    Connection conn = null;/*from ww w .j a va2s .c o m*/
    Statement stmt = null;
    try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        conn = DriverManager.getConnection("jdbc:odbc:Employees");
        stmt = conn.createStatement();
        String orderBy = request.getParameter("sort");
        if ((orderBy == null) || orderBy.equals("")) {
            orderBy = "SSN";
        }
        String orderByDir = request.getParameter("sortdir");
        if ((orderByDir == null) || orderByDir.equals("")) {
            orderByDir = "asc";
        }
        String query = "SELECT Employees.SSN, Employees.Name, " + "Employees.Salary, "
                + "Employees.Hiredate, Location.Location " + "FROM Location " + "INNER JOIN Employees "
                + "ON Location.Loc_Id = Employees.Loc_Id " + "ORDER BY " + orderBy + " " + orderByDir + ";";
        ResultSet rs = stmt.executeQuery(query);
        while (rs.next()) {
            long employeeSSN = rs.getLong("SSN");
            String employeeName = rs.getString("Name");
            long employeeSalary = rs.getLong("Salary");
            Date employeeHiredate = rs.getDate("Hiredate");
            String employeeLocation = rs.getString("Location");
            out.print(employeeSSN + "::");
            out.print(employeeName + "::");
            out.print(employeeSalary + "::");
            out.print(employeeHiredate + "::");
            out.print(employeeLocation + "::");
        }
    } catch (SQLException e) {
        out.println("An error occured while retrieving " + "all employees: " + e.toString());
    } catch (ClassNotFoundException e) {
        throw (new ServletException(e.toString()));
    } finally {
        try {
            if (stmt != null) {
                stmt.close();
            }
            if (conn != null) {
                conn.close();
            }
        } catch (SQLException ex) {
        }
    }
    out.println("</center>");
    out.println("</body>");
    out.println("</html>");
    out.close();
}

From source file:com.redoute.datamap.servlet.datamap.UpdateDatamap.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./* w w w . j a  v a 2  s  .c o  m*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    PolicyFactory policy = Sanitizers.FORMATTING.and(Sanitizers.LINKS);

    try {
        String name = policy.sanitize(request.getParameter("id"));
        String columnName = policy.sanitize(request.getParameter("columnName"));
        String value = policy.sanitize(request.getParameter("value"));

        ApplicationContext appContext = WebApplicationContextUtils
                .getWebApplicationContext(this.getServletContext());
        IDatamapService datamapService = appContext.getBean(IDatamapService.class);
        datamapService.updateDatamap(name, columnName, value);

        out.print(value);
    } finally {
        out.close();
    }
}

From source file:com.redoute.datamap.servlet.picture.UpdatePicture.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//from w  w w  .  j ava 2  s .co  m
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    PolicyFactory policy = Sanitizers.FORMATTING.and(Sanitizers.LINKS);

    try {
        String name = policy.sanitize(request.getParameter("id"));
        String columnName = policy.sanitize(request.getParameter("columnName"));
        String value = policy.sanitize(request.getParameter("value"));

        ApplicationContext appContext = WebApplicationContextUtils
                .getWebApplicationContext(this.getServletContext());
        IPictureService datamapService = appContext.getBean(IPictureService.class);
        datamapService.updatePicture(name, columnName, value);

        out.print(value);
    } finally {
        out.close();
    }
}

From source file:geo.controller.LoadMRTServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*from   w  ww .  ja v  a  2  s  .com*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("application/json");
    PrintWriter out = response.getWriter();
    try {
        ArrayList<MRTStation> mrtList = MRTStationDAO.getMRTList();

        JSONArray jsonArray = new JSONArray();
        int index = 0;

        for (int i = 0; i < mrtList.size(); i++) {
            if (mrtList.get(i).lat == 0 && mrtList.get(i).lng == 0) {
                continue;
            }
            jsonArray.add(index++, mrtList.get(i).getJSONObject());
        }

        out.println(jsonArray.toJSONString());
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        out.close();
    }
}

From source file:de.knightsoftnet.validators.server.security.AuthFailureHandler.java

@Override
public void onAuthenticationFailure(final HttpServletRequest prequest, final HttpServletResponse presponse,
        final AuthenticationException pexception) throws IOException, ServletException {
    presponse.setStatus(HttpServletResponse.SC_UNAUTHORIZED);

    final PrintWriter writer = presponse.getWriter();
    writer.write(pexception.getMessage());
    writer.flush();/* w  w w  . j av a  2  s  .  co m*/
}

From source file:net.proest.librepilot.web.handler.ObjectHandler.java

public void handlePost(String target, Request baseRequest, HttpServletRequest request,
        HttpServletResponse response) throws IOException, ServletException {
    PrintWriter out = response.getWriter();
    BufferedReader br = request.getReader();
    String json = "";
    while (br.ready()) {
        json += br.readLine();// w  w  w .j  a v  a2 s .  c  o  m
    }
    System.out.println(json);
    json = json.replaceFirst("json=", "");
    System.out.println(json);
    json = URLDecoder.decode(json, "utf-8");
    System.out.println(json);
    System.out.println();
    ObjectMapper mapper = new ObjectMapper();
    JsonNode actualObj = mapper.readTree(json);
    out.println(actualObj.asText());
    out.println(mapper.toString());
}