Servlets :: Cookie Set By JavaScript Does Not Show Up In HttpServletRequest
Dec 5, 2014
I've got a banner that displays on the web page and users can close it out by clicking an "X" button in its corner. Once it's closed, we track for that session that it remains closed, so a cookie gets set. I'd like subsequent requests to the server to be aware of this cookie so that the banner code is just not included in subsequent responses. (Sidebar: earlier I was just detecting the cookie after page load and then hiding the banner but it creates a lag where the banner is visible then suddenly pops away, making for poor user experience.)
I expect that even though Javascript set the cookie it would then show up in HttpServletRequest.getCookies() call, but there's actually a lot of cookies visible in Chrome Developer Tools on the client of my page that don't show up in .getCookies(). Does the HttpServletResponse.addCookie need called at some point first for the cookie to be passed back and forth to server?
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Mar 26, 2015
As below i m creating cookie .
Cookie myCookie = new Cookie("myck", value);
myCookie.setSecure(true);
response.addCookie(myCookie);
I am trying to read that cookie in javascript as below.
var cookieValue = $.cookie("myck");
I can see the cookie in the browser. However the read is not happening I tried to set httponly to false
myCookie.setHttpOnly(false);
However it is throwing compilation error as my servlet version is 2.5
Is there any way to get the cookie in javascript?
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Jul 28, 2014
What is the difference between JSESSION ID and Session?I red THIS blog, I got the explanation but I'm actually confused about JSESSION ID and Session.. In that blog, they told about JSESSION ID cookie. then What is the difference between JSESSION ID and Cookie?
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Feb 6, 2014
I'm trying to get the jsessionid cookie value using the following line in my jsp. It always returns empty string. Is this correct behaviour?
response.encodeURL("")
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Oct 8, 2014
I just want to to ask how can I send a form to a servlet using javascript?
Here's my form:
<form id="movieForm" class="form-signin" action="addnewmovie" method="POST"
enctype="multipart/form-data">
<h1 class="text-center movie-title">Add New Movie</h1>
<div class="row">
<div class="col-md-12">
<input id="movieId" type="text" class="input-hide form-control"
placeholder="Movie ID">
[Code] ....
This button will responsible for sending:
<button id="add-new-movie"
class="button-position btn btn-primary btn-block"
type="submit" onClick="submitForm();">Add Movie</button>
Note that I include file uploading in the form.
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Oct 16, 2014
I need to check in my java class the status of the javascript (whether it's enabled or disabled) and based on that few validations will be performed at server side.
If have to use noscript, then any small example for xhtml. My project works on Spring web flow.
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Mar 18, 2015
i don't need ordinary javascript alert box. so i was use the jquery modal alert box for different action like success, error etc.but i have problem to call the alert box within servlet.
out.println("<link href="css/jquery.modal.css" type="text/css" rel="stylesheet" />");
out.println("<script type="text/javascript" src="js/jquery-latest.min.js">");
out.println("<script type="text/javascript" src="js/jquery.modal.min.js">");
out.println("<script type="text/javascript" src="js/jscript.js">");
out.println("<script type="text/javascript" src="js/success.js">");
out.println("<script type="text/javascript">");
response.getOutputStream().println("success();");
out.println("</script>");
how to call the modal function in the js file?
otherwise how to show the modal alert box?
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May 30, 2014
I am making a shopping cart app in JSP and servlets to bring it all together. Finally.
I have a registration servlet (c1), a registration form jsp (c2), a login jsp (c3). c1 checks if a username is in the database or not.
If the username is not there, then register the user and send them to c3. I want c3 to display a "registration successful" message if a user has just registered successfully and is coming from c1. ELSE, take the user back to c2 with a message which tells them to choose a different username or password etc.
How do I implement the logic of showing a message depending on where a user is coming from ? The servlets and jsps are ready and I only need to add this logic for a custom message. Of course, I could make a JSP for Registration Successful and one for Registration Failure. But, that seems to be unnecessary.
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Jan 28, 2015
I need to write a program in JSP to get session id and cookie id. I have done the following to get session id. how to get the cookie id.
<%
String sessionId = session.getId();
%>
<p><%=sessionId %></p>
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Jun 3, 2013
I am trying to delete cookie using the following steps:
if(a==a){
cookies.setMaxAge(0);
cookies[i].setPath("/");
cookies[i].setDomain(".example.com");
}
But, when i am using CookiesManager+ to view the cookies i am not seeing that the cookie is getting removed/deleted.
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Aug 29, 2012
Actually I am working on java ee6 web application i tried to set value and max age for the cookie...but I was unable to set maxage what ever the max age value i give .it shows as -1.but my browser accepts and stores cookie.
<i>
"
Cookie sa=new Cookie("ssample", "welcome");
sa.setMaxAge(120);
response.addCookie(sa);
"</i>
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Apr 30, 2015
I have the following code.
class A {
List<StringBuilder> list;
public void output(List<StringBuilder> objectToOutput){
try(BufferedWriter bw = new BufferedWriter(new FileWriter("temp.txt"))){
for(StringBuilder row:objectToOutput) bw.write(row.toString());
}catch(IOException e){}
[code]....
Why don't the a's show up on the console? I put them in as part of the debugging process and now I don't understand why they don't show up in both places.
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Mar 11, 2014
How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.
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Feb 5, 2014
I have a java application in which when starting it a map is opened and a screen is captured. The capturing is in certain time interval. I want to enable the user to change the interval for the automatic capturing the map. I placed a text box in a JPanel. I want to pass the value which was entered in it to the html page which opens a Google map. Since I am new in java programming, I found that I can do it by using applets. I made an applet, and tried to call it in the html file. But now instead of opening the map file in a browser, it opens very quickly only black window.
Here is my applet:
package cege.ui;
import java.applet.Applet;
import java.io.IOException;
import cege.ui.GuiMain;
public class AppletTInterval extends Applet {
private int TimeInterval=0;
[Code] .....
And the code in the html file where I try to call the applet, i.e. to pass the value which is returned by the applet is:
<script src=
<!--"https://www.java.com/js/deployJava.js"></script>
<script>
var attributes = { id:'AppletTInterval',
code:'cege.ui.AppletTInterval', width:1, height:1} ;
var parameters = { jnlp_href: 'AppletTInterval.jnlp'} ;
[Code] .....
Can I use this way to pass a value from the java class file (from the JTextField into the html file?
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Jul 11, 2014
how to program in Javascript, I am wondering what are the advantages and disadvantages OR pros/cons of using JS versus say a language like Java?
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Jul 25, 2014
In my JSP file I need to rewrite the content of a <div> using Java script. <div> contains the JSP scriptlet tag.
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Mar 16, 2014
I am taking Python this semester. Our teacher wants us to convert Python to JavaScript without really explaining how or/and expecting us to be familiar with it already.Python Program I have is pretty simple - it prompts you to enter your first and last name and end your DNA string, "CAG" repeats are counted by another function and the result is passed to function that identified weather you may have huntington's decease or not.
<body>
<p>Enter First Name: <input type="text" size="25" id="firstname" value="">
<p>Enter Last Name: <input type="text" size="25" id="lastname" value="">
<p>Enter DNA: <input type="text" size="25" id="DNA" value="" >
<p><button onclick="alertt(f,l,d,c,p)" style="background-color:pink"><b>PRESS TO FIND OUT RESULT</b></button></p>
<script>
[code]...
When I run it there is an issue with countCAG and prediction functions :( I would run each one individually in JS console and I get Undefined, or InvalidString I read that I am supposed to use var in front of each variable, unlike in Python where you just assign variable a value without any add-ons in the front. But JS console seems to recognize both ways of assigning, however var smth=0 immediately evaluates to Undefined, and smth=0, gives me 0...
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May 1, 2014
I am trying to run a sign up page. The page is working properly and takes me to the login page when completed as it should. But when a field is left blank it is supposed to show an error message and keep them on the signup page, and it is not doing that. Sign Up Action:
<%
String field = "";
String message = "";
if ((request.getParameter("lastname") != null) &&
(request.getParameter("firstname") != null) &&
(request.getParameter("sadress") != null) &&
(request.getParameter("city") != null) &&
(request.getParameter("state") != null) &&
(request.getParameter("zipcode") != null) &&
[code]....
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Jun 10, 2014
I have a Javascript COMserver code :
<script language="JScript">
var ComServer;
function CreateSQLAccServer () {
ComServer = new ActiveXObject('SQLAcc.BizApp');
[Code] ....
But, now i would like to move the javascript code into java application base system. I try :
ActiveXComponent Comserver = new ActiveXComponent("SQLAcc.BizApp");
but it having error and continue step how i do the checking see the Comserver is login or not?
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Aug 20, 2014
In my jsp, I have a table with some file paths with this I have to get the file and send it to server. I am able to read the file name, size and file as binary using files of javascript. But after that I need to send those files by storing in a byte array to servlet which I am not able to that. Is there any way I can send that. My requirement is I need to upload those files to server side.
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Dec 21, 2014
I an using a pop out java script and in the notes it says
if later on you want to open / close a specific item you could do it like so:
ExpandingMenu.openItem(3); // toggles item 3 (zero-based indexing)
*/
How to call the function from a button click. I have some button already on my page like so
<li><a href="#">Menu3</a></li>
And from what I have read I should be able to do this:
<li><a href="#" onclick="ExpandingMenu.openItem(3)">Menu3</a></li>
But I don't get any response ..... no error message NOTHING
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Apr 22, 2014
How to find the total number of pages in java script .how to achieve it.
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Apr 23, 2014
How to format number as money in javascript? e.g 1000 to 1,000 ... E.g., 100000000 then it will be format into 1,000,000,000 ...
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Jan 29, 2015
This first part of code is my HTML
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<meta charset="UTF-8">
<link href="jquery/jquery.mobile-1.4.5.min.css" rel="stylesheet" type="text/css"/>
<meta name="viewport" content="width=device-width, initial-scale=1">
[Code] .....
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Apr 30, 2014
I have a js code that finds out the timezone and then I am trying to "send" a value to a java backingbean. This code must be execute during the load of the xhtml page because in the process I use the "localTimeZone" bean.
<h:inputHidden value="#{localTimeZone.timeZoneID}" id="clientSelectedTimeZoneID"/>
<h:inputHidden value="#{localTimeZone.offset}" id="clientSelectedOffset"/>
<script type="text/javascript">
var userTimeZone = userTimeZone();
[Code] ....
How is the correct way to do this in order to have the setters of backingbean called ?
JSF ver: Implementation-Version: 1.2_12-b01-FCS
RICHFACES: Implementation-Version: 3.3.3.Final
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Feb 20, 2014
I have a problem with a JavaScript application on Safari 6 and 7. The application updates a smartcard on a website, through a JAVA applet using JavaScript requests.
There is no problem with other browsers. On Safari , randomly (1 smartcard's update on 10), the javascript completely freezes in the middle of an update (on a random card).
After 5 minutes exactly, the javascript resumes, and 2 behaviors happens : the update wether continues or stops completely.
We investigated a lot about this problem , at network and memory level. We use a lot of "setTimeOut" function (approximately 1100 times), and read that setTimeOut could cause problems with memory management on Safari.
Does setTimeOut can freeze safari ?
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