To read cookies, you need to create an array of javax.servlet.http.Cookie objects by calling the getCookies( ) method of HttpServletRequest. Then cycle through the array, and use getName() and getValue() methods to access each cookie and associated value.
Let us now read cookies that were set in the previous example −
Example
<html>
<head>
<title>Reading Cookies</title>
</head>
<body>
<center>
<h1>Reading Cookies</h1>
</center>
<%
Cookie cookie = null;
Cookie[] cookies = null;
// Get an array of Cookies associated with the this domain
cookies = request.getCookies();
if( cookies != null ) {
out.println("<h2> Found Cookies Name and Value</h2>");
for (int i = 0; i < cookies.length; i++) {
cookie = cookies[i];
out.print("Name : " + cookie.getName( ) + ", ");
out.print("Value: " + cookie.getValue( )+" <br/>");
}
} else {
out.println("<h2>No cookies founds</h2>");
}
%>
</body>
</html>Let us now put the above code in main.jsp file and try to access it. If you set the first_name cookie as "John" and the last_name cookie as "Player" then running https://localhost:8080/main.jsp will display the following result −
Output
Found Cookies Name and Value Name : first_name, Value: John Name : last_name, Value: Player