Example usage for java.io PrintWriter print

List of usage examples for java.io PrintWriter print

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Introduction

In this page you can find the example usage for java.io PrintWriter print.

Prototype

public void print(Object obj)

Source Link

Document

Prints an object.

Usage

From source file:com.cyclopsgroup.waterview.servlet.WaterviewServlet.java

/**
 * Do handle exception/*from  w  w w.  j  a v  a 2  s  .  com*/
 * @param request Http request
 * @param response Http response
 * @param e Throwable
 * @throws IOException Throw it out
 * @throws ServletException Throw it out
 */
protected void doHandleException(HttpServletRequest request, HttpServletResponse response, Throwable e)
        throws IOException, ServletException {
    response.setContentType("text/html");
    PrintWriter output = new PrintWriter(response.getOutputStream());
    output.print("<html><body><h2>Internal error occurs</h2><p><pre>");
    e.printStackTrace(output);
    output.print("</pre></p></body></html>");
    output.flush();
    output.close();
}

From source file:com.jjtree.servelet.Paragraphs.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request/*from   w ww  . j a v  a 2s. 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 {
    processRequest(request, response);

    String pathInfo = request.getPathInfo();
    String[] path = pathInfo.split("/");
    int singleParagraphID = Integer.parseInt(path[1]);

    try {
        // Register JDBC driver
        Class.forName(JConstant.JDBC_DRIVER);

        // Open a connection
        conn = DriverManager.getConnection(JConstant.DB_URL, JConstant.USER, JConstant.PASSWORD);

        // Execute SQL query
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT * FROM JParagraph WHERE paragraphID = " + singleParagraphID;
        ResultSet rs = stmt.executeQuery(sql);

        // Extract data from result set
        while (rs.next()) {
            //Retrieve by column name
            int paragraphID = rs.getInt("paragraphID");
            int articleID = rs.getInt("articleID");
            int position = rs.getInt("position");

            String type = rs.getString("type");
            String content = rs.getString("content");

            JSONObject paragraph = new JSONObject();

            paragraph.put("paragraphID", paragraphID);
            paragraph.put("articleID", articleID);
            paragraph.put("position", position);

            paragraph.put("type", type);
            paragraph.put("content", content);

            PrintWriter writer = response.getWriter();
            writer.print(paragraph);
            writer.flush();
        }

        // Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        //Handle errors for JDBC
        se.printStackTrace();
    } catch (Exception e) {
        //Handle errors for Class.forName
        e.printStackTrace();
    } finally {
        //finally block used to close resources
        try {
            if (stmt != null) {
                stmt.close();
            }
        } catch (SQLException se2) {
        } // nothing we can do
        try {
            if (conn != null) {
                conn.close();
            }
        } catch (SQLException se) {
            se.printStackTrace();
        } //end finally try
    } //end try
}

From source file:feedme.controller.HomePageServlet.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//from w  w  w  . ja  va 2s.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 {
    processRequest(request, response);
    HashMap<String, Integer> category = new HashMap<>();
    List<Restaurant> restaurants;

    DbHPOnLoad dbPageOnLoad = new DbHPOnLoad();//creating a DbHPOnLoad object

    List<Restaurant> allResturent = new DbAdminManagmentTools().getAllRestaurants();

    int page = 1;
    int recordsPerPage = 6;

    if (request.getParameter("page") != null) {
        page = Integer.parseInt(request.getParameter("page"));
    }

    int noOfRecords = allResturent.size();
    int noOfPages = (int) Math.ceil(noOfRecords * 1.0 / recordsPerPage);

    category = dbPageOnLoad.getCategories();//getting a categories
    restaurants = new DbRestaurantsManagement()
            .getNextRecentRestaurantsByCatAndCity((page - 1) * recordsPerPage, recordsPerPage, 0, "Asd");//get the last 6 new restaurants

    if (isAjaxRequest(request)) {
        try {
            JSONObject restObj = new JSONObject();
            JSONArray restArray = new JSONArray();
            for (Restaurant rest : restaurants) {
                restArray.put(new JSONObject().put("resturent", rest.toJson()));
            }
            restObj.put("resturent", restArray);
            restObj.put("noOfPages", noOfPages);
            restObj.put("currentPage", page);
            response.setContentType("application/json");
            PrintWriter writer = response.getWriter();
            writer.print(restObj);
            response.getWriter().flush();
            return;
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    List<String> cities = dbPageOnLoad.getCities();
    if (request.getSession().getAttribute("shoppingCart") == null) {
        request.getSession().setAttribute("shoppingCart", new Order());//crete a new shopping cart
    }

    List<RestaurantRanking> rankings = dbPageOnLoad.getRestRandomComments(5);//getting a random rankings from DB

    for (RestaurantRanking re : rankings) {//looping over the rankings
        re.setResturent(new DbRestaurantsManagement().getRestaurantById(re.getRestId()));
    }

    request.setAttribute("noOfPages", noOfPages);
    request.setAttribute("currentPage", page);
    request.setAttribute("category", category);//send the categories
    request.setAttribute("cities", cities);//send the cities
    request.setAttribute("restaurants", restaurants);//send the restaurants
    request.setAttribute("rankings", rankings);//send the rankings

    RequestDispatcher dispatcher = request.getRequestDispatcher("website/index.jsp");//send a ajsp file
    dispatcher.forward(request, response);
    return;
}

From source file:cn.edu.zjnu.acm.judge.user.ResetPasswordController.java

@PostMapping(value = "/resetPassword", params = "action=changePassword", produces = "text/javascript")
public void changePassword(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setContentType("text/javascript;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (!checkVcode(request)) {
        out.print("alert(\"??\");");
        return;/*from  w w w  . j  ava2  s .c  om*/
    }
    String newPassword = request.getParameter("newPassword");
    ValueCheck.checkPassword(newPassword);
    User user = userMapper.findOne(request.getParameter("u"));
    userMapper.update(user.toBuilder().password(passwordEncoder.encode(newPassword)).vcode(null)
            .expireTime(null).build());
    out.print("alert(\"???\");");
    out.print("document.location='" + request.getContextPath() + "'");
}

From source file:com.bluelotussoftware.apache.commons.fileupload.example.FileUploadServlet.java

/**
 * Processes requests for both HTTP//from   ww  w.  ja v  a  2  s  .  co m
 * <code>GET</code> and
 * <code>POST</code> methods.
 *
 * @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");
    boolean isMultiPart = ServletFileUpload.isMultipartContent(request);
    log("isMultipartContent: " + isMultiPart);
    log("Content-Type: " + request.getContentType());
    if (isMultiPart) {

        // Create a factory for disk-based file items
        DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();

        /*
         * Set the file size limit in bytes. This should be set as an
         * initialization parameter
         */
        diskFileItemFactory.setSizeThreshold(1024 * 1024 * 10); //10MB.

        // Create a new file upload handler
        ServletFileUpload upload = new ServletFileUpload(diskFileItemFactory);

        // Parse the request
        List items = null;
        try {
            items = upload.parseRequest(request);
        } catch (FileUploadException ex) {
            log("Could not parse request", ex);
        }

        PrintWriter out = response.getWriter();
        out.print("<html><head><title>SUCCESS</title></head><body><h1>DONE!</h1>");

        ListIterator li = items.listIterator();
        while (li.hasNext()) {
            FileItem fileItem = (FileItem) li.next();
            if (fileItem.isFormField()) {
                processFormField(fileItem);
            } else {
                out.append(processUploadedFile(fileItem));
            }
        }
        out.print("</body></html>");
        out.flush();
        out.close();

    }
}

From source file:be.fedict.eid.idp.webapp.IdentityServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    LOG.debug("doGet");

    response.setContentType("text/plain");
    PrintWriter out = response.getWriter();

    IdPIdentity activeIdentity = identityService.findIdentity();
    if (null == activeIdentity) {

        out.print("No active identity eID IdP Identity configured.");

    } else {/*from   w  w  w.  j a va 2  s  .  c  o m*/

        String pemCertificateChain;
        try {
            pemCertificateChain = toPem(activeIdentity.getPrivateKeyEntry().getCertificateChain());
        } catch (Exception e) {
            LOG.error(e);
            return;
        }
        out.print(pemCertificateChain);
    }

    out.close();
}

From source file:Json.JsonCodes.java

public void jsonCreate(String patchName) {
    JSONObject obj = new JSONObject();
    JSONArray ar = new JSONArray();

    for (int i = 0; i < this.pageList.size(); i++) {

        ar.add(this.pageList.get(i));
    }/*from  w  w w. j  av  a2  s.  com*/
    obj.put("patch", this.patch);
    obj.put("page", ar);

    File file = new File(patchName);

    try {
        //?,  ?   ??  ? 
        if (!file.exists()) {
            file.createNewFile();
        }

        //PrintWriter ? ? ?  
        PrintWriter out = new PrintWriter(file.getAbsoluteFile());

        try {
            //? ?  
            out.print(obj);
        } finally {
            //?     
            //   ??
            out.close();
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:org.loklak.api.server.GeocodeServlet.java

@SuppressWarnings("unchecked")
@Override/*  w w  w .  j  a  v a 2s  . co  m*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    RemoteAccess.Post post = RemoteAccess.evaluate(request);

    // manage DoS
    if (post.isDoS_blackout()) {
        response.sendError(503, "your request frequency is too high");
        return;
    }

    // parameters
    String callback = post.get("callback", "");
    boolean jsonp = callback != null && callback.length() > 0;
    boolean minified = post.get("minified", false);
    String data = post.get("data", "");
    String places = post.get("places", "");
    if (places.length() == 0 && data.length() == 0) {
        response.sendError(503,
                "you must submit a data attribut with a json containing the property 'places' with a list of place names");
        return;
    }

    String[] place = new String[0];
    if (places.length() > 0) {
        place = places.split(",");
    } else {
        // parse the json data
        try {
            Map<String, Object> map = DAO.jsonMapper.readValue(data, DAO.jsonTypeRef);
            Object places_obj = map.get("places");
            if (places_obj instanceof List<?>) {
                List<Object> p = (List<Object>) places_obj;
                place = new String[p.size()];
                int i = 0;
                for (Object o : p)
                    place[i++] = (String) o;
            } else {
                response.sendError(400, "submitted data is not well-formed: expected a list of strings");
                return;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    // find locations for places
    Map<String, Object> locations = new LinkedHashMap<>();
    for (String p : place) {
        GeoMark loc = DAO.geoNames.analyse(p, null, 5, Long.toString(System.currentTimeMillis()));
        Map<String, Object> location = new LinkedHashMap<>();
        if (loc != null) {
            location.put("place",
                    minified ? new String[] { loc.getNames().iterator().next() } : loc.getNames());
            location.put("population", loc.getPopulation());
            location.put("country_code", loc.getISO3166cc());
            location.put("country", DAO.geoNames.getCountryName(loc.getISO3166cc()));
            location.put("location", new double[] { loc.lon(), loc.lat() });
            location.put("mark", new double[] { loc.mlon(), loc.mlat() });
        }
        locations.put(p, location);
    }

    post.setResponse(response, "application/javascript");

    // generate json
    Map<String, Object> m = new LinkedHashMap<>();
    m.put("locations", locations);

    // write json
    response.setCharacterEncoding("UTF-8");
    PrintWriter sos = response.getWriter();
    if (jsonp)
        sos.print(callback + "(");
    sos.print((minified ? new ObjectMapper().writer() : new ObjectMapper().writerWithDefaultPrettyPrinter())
            .writeValueAsString(m));
    if (jsonp)
        sos.println(");");
    sos.println();
    post.finalize();
}

From source file:com.ebay.jetstream.management.HtmlResourceFormatter.java

protected void formatBean(boolean end, Class<?> bclass, String help) throws IOException {
    PrintWriter pw = getWriter();
    if (!CommonUtils.isEmptyTrimmed(help)) {
        pw.print("<I>" + help + "</I>: ");
    }/*from  w ww  . j av  a 2 s  .c o  m*/
    pw.println("type " + bclass.getName() + "<P/>");
}

From source file:com.streak.logging.analysis.AnalysisUtility.java

public static void writeSchema(FileService fileService, String bucketName, String schemaKey,
        List<String> fieldNames, List<String> fieldTypes, List<BigqueryFieldExporter> exporters)
        throws IOException, FileNotFoundException, FinalizationException, LockException {
    GSFileOptionsBuilder schemaOptionsBuilder = new GSFileOptionsBuilder().setBucket(bucketName)
            .setKey(createSchemaFilename(schemaKey)).setAcl("project-private");
    AppEngineFile schemaFile = fileService.createNewGSFile(schemaOptionsBuilder.build());

    FileWriteChannel schemaChannel = fileService.openWriteChannel(schemaFile, true);
    PrintWriter schemaWriter = new PrintWriter(Channels.newWriter(schemaChannel, "UTF8"));

    JSONArray fields = new JSONArray();

    for (int i = 0; i < fieldNames.size(); i++) {
        try {//ww w  . j  a v  a2s  .co  m
            JSONObject obj = new JSONObject();
            obj.put("name", fieldNames.get(i));
            obj.put("type", fieldTypes.get(i));

            BigqueryFieldExporter exp = exporters.get(i);
            if (exp instanceof BigqueryRecordFieldExporter) {
                obj.put("mode", "repeated");
                obj.put("fields", ((BigqueryRecordFieldExporter) exp).getRecordFields());
            } else {
                obj.put("mode", "nullable");
            }

            fields.put(obj);
        } catch (JSONException e) {
            log.severe("This should not happen!");
        }
    }

    schemaWriter.print(fields.toString());
    schemaWriter.close();

    schemaChannel.closeFinally();
}