Example usage for javax.servlet.http HttpServletRequest getParameterNames

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getParameterNames.

Prototype

public Enumeration<String> getParameterNames();

Source Link

Document

Returns an Enumeration of String objects containing the names of the parameters contained in this request.

Usage

From source file:gsn.http.ac.ParameterSet.java

/*************************************************************************************************/

/* constructor for processing parameters of a normal form */
public ParameterSet(HttpServletRequest req) {
    paramset = new Hashtable();
    Enumeration myenum = req.getParameterNames();
    while (myenum.hasMoreElements()) {
        String name = (String) myenum.nextElement();
        String values[] = req.getParameterValues(name);
        if (values != null) {
            if (values.length <= 1) {
                paramset.put(name, req.getParameter(name));

            }/*w w  w . j  ava  2  s . c  o m*/
        } else {
            paramset.put(name, req.getParameter(name));

        }
    }
}

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From source file:com.autobizlogic.abl.mgmt.ConsoleServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, java.io.IOException {

    Map<String, String> args = new HashMap<String, String>();
    Enumeration<String> paramNames = req.getParameterNames();
    while (paramNames.hasMoreElements()) {
        String paramName = paramNames.nextElement();
        String paramValue = req.getParameter(paramName);
        if (paramValue == null || paramValue.length() == 0)
            paramValue = null;/*ww w. j a  v a 2s  . com*/
        args.put(paramName, paramValue);
    }

    Map<String, Object> result = null;
    String areaName = args.get("area");
    if (areaName.equals("SessionFactory"))
        result = SessionFactoryService.service(args);
    else if (areaName.equals("ClassMetadata"))
        result = ClassMetadataService.service(args);
    else if (areaName.equals("Transactions"))
        result = TransactionService.service(args);
    else if (areaName.equals("Performance"))
        result = PerformanceService.service(args);
    else if (areaName.equals("Dependency"))
        result = DependencyService.service(args);

    if (result == null)
        return;

    resp.setContentType("application/json");
    String resStr = JSONValue.toJSONString(result);
    PrintWriter out = resp.getWriter();
    out.print(resStr);
}

---

From source file:RegistrationServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    JSONObject json = new JSONObject();

    Enumeration paramNames = request.getParameterNames();
    String params[] = new String[3];
    int i = 0;/*from   ww w . j a va  2 s  . c o m*/
    while (paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        //System.out.println("ParamName : " +paramName);

        String[] paramValues = request.getParameterValues(paramName);
        params[i] = paramValues[0];
        //System.out.println("ParamValue : " +params[i]);

        i++;
    }

    DatabaseHandler db = new DatabaseHandler();

    conn = db.makeConnection();
    try {
        stmt = conn.createStatement();

        //params[0]=password,params[1]=name,params[2]=email
        String query = "INSERT INTO user (name,email,password) VALUES (\"" + params[1] + "\",\"" + params[2]
                + "\",\"" + params[0] + "\")";
        //System.out.println(query);

        int updatedRows = stmt.executeUpdate(query);
        if (updatedRows == 1) {
            json.put("reply", "done");
        } else {
            json.put("reply", "undone");
        }

    } catch (SQLException ex) {
        Logger.getLogger(RegistrationServlet.class.getName()).log(Level.SEVERE, null, ex);
    }

    //System.out.println(updatedRows);
    //System.out.println(json);

    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");
    response.getWriter().write(json.toString());

    //closing mysql connection (now done in DatanaseHandler class)
    db.closeAllConnections(conn, stmt);

}

---

From source file:com.github.dbourdette.otto.web.controller.api.ApiController.java

/**
 * Since we are using @Async in our RemoteEventsFacade we need to deep copy map of parameters from request.
 * At least tomcat reuse request objects and map would be empty when @Async code is invoked.
 *///w  ww. j  a va 2s  .  com
private Map<String, String> copyParams(HttpServletRequest request) {
    Map<String, String> params = new HashMap<String, String>();

    Enumeration<String> names = request.getParameterNames();

    while (names.hasMoreElements()) {
        String name = names.nextElement();

        params.put(name, request.getParameter(name));
    }

    return params;
}

---

From source file:productClass.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * Select statement for the database connect to retrieve values
 * //from www . j a v a  2 s.co m
 * @param request servlet request
 * @param response servlet response
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) {
    try (PrintWriter out = response.getWriter()) {
        if (!request.getParameterNames().hasMoreElements()) {
            out.println(getResults("SELECT * FROM product"));
        } else {
            int productID = Integer.parseInt(request.getParameter("productID"));
            out.println(getResults("SELECT * FROM product WHERE productID = ?", String.valueOf(productID)));
        }
    } catch (IOException ex) {
        Logger.getLogger(productClass.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:com.blackducksoftware.integration.hub.teamcity.server.global.HubGlobalServerConfigController.java

private boolean isTestConnectionRequest(final HttpServletRequest request) {
    if (!request.getParameterNames().hasMoreElements()) {
        return false;
    }//from w  ww  .j  av a 2 s.  c o m
    final String testConnectionParamValue = request.getParameter("testConnection");
    return Boolean.valueOf(testConnectionParamValue);
}

---

From source file:com.blackducksoftware.integration.hub.teamcity.server.global.HubGlobalServerConfigController.java

private boolean isSavingRequest(final HttpServletRequest request) {
    if (!request.getParameterNames().hasMoreElements()) {
        return false;
    }// ww  w.ja v  a 2s  .c  o m
    final String savingParamValue = request.getParameter("saving");
    return Boolean.valueOf(savingParamValue);
}

---

From source file:org.freeeed.ep.web.BaseController.java

public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    this.request = request;
    this.response = response;

    valueStack = new HashMap<String, Object>();
    Enumeration<String> en = request.getParameterNames();
    while (en.hasMoreElements()) {
        String param = en.nextElement();
        valueStack.put(param, request.getParameter(param));
    }//from   w  ww  .  j a v a 2 s.co m

    ModelAndView modelAndView = execute();

    if (addValueStackToModel()) {
        modelAndView.addAllObjects(valueStack);
    }

    return modelAndView;
}

---

From source file:JoinGameServlet.java

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    Enumeration paramNames = request.getParameterNames();
    String params[] = new String[3];
    int i = 0;/*from  w w w .j  av a  2 s  .co  m*/
    while (paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        //System.out.println("ParamName : " +paramName);

        String[] paramValues = request.getParameterValues(paramName);
        params[i] = paramValues[0];
        //System.out.println("ParamValue : " +params[i]);

        i++;
    }
    //System.out.println("param0->"+params[0]);
    //System.out.println("param1->"+params[1]);
    //param0->gameid,param1->name

    DatabaseHandler db = new DatabaseHandler();

    conn = db.makeConnection();

    String query = "SELECT * FROM game WHERE id=" + params[0];
    //System.out.println(query);

    PreparedStatement prStmt;
    try {
        prStmt = conn.prepareStatement(query);
        ResultSet rs = prStmt.executeQuery();

        if (rs.next()) {
            String count = rs.getString("playercount");
            count = String.valueOf(Integer.parseInt(count) + 1);

            String qry = "UPDATE game SET nameplayer" + count + "=\"" + params[1] + "\",playercount=\"" + count
                    + "\" WHERE id=\"" + params[0] + "\"";
            //System.out.println(qry);

            stmt = conn.createStatement();
            int updatedRows = stmt.executeUpdate(qry);
            if (updatedRows == 1) {
                json.put("reply", "done");
                json.put("actionid", count);
                //setting next player action to 1 to start bet
                if (Integer.parseInt(count) == 4) {
                    qry = "UPDATE game SET turn=1,nextactionuserid=1 WHERE id=\"" + params[0] + "\"";
                    stmt.execute(qry);
                }
            } else {
                json.put("reply", "undone");
            }
        }

        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        response.getWriter().write(json.toString());

    } catch (SQLException ex) {
        Logger.getLogger(JoinGameServlet.class.getName()).log(Level.SEVERE, null, ex);
    }

    db.closeAllConnections(conn, stmt);

}

---

From source file:com.glaf.core.util.RequestUtils.java

/**
 * ?/*from  w ww.  j  a v a  2 s  .c o m*/
 * 
 * @param request
 */
public static void setRequestParameterToAttribute(HttpServletRequest request) {
    request.setAttribute("contextPath", request.getContextPath());
    Enumeration<?> enumeration = request.getParameterNames();
    while (enumeration.hasMoreElements()) {
        String paramName = (String) enumeration.nextElement();
        String paramValue = getParameter(request, paramName);
        if (StringUtils.isNotEmpty(paramName) && StringUtils.isNotEmpty(paramValue)) {
            if (request.getAttribute(paramName) != null) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("method", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("action", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("actionType", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("reset", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("submit", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("button", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("cancel", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("parent", paramName)) {
                continue;
            } else if (StringUtils.equalsIgnoreCase("hasPermission", paramName)) {
                continue;
            }
            request.setAttribute(paramName, paramValue);
        }
    }
}

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