Cookies program to display the information though cookie creation
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Cookies program to display the information though cookie creation
- 1. Java Program10 A Java program to create and read the cookie for the given cookie name as “EMPID” and its value as “AN2356”. SetCookieServlet.java import java.io.IOException; import java.io.PrintWriter; import jakarta.servlet.ServletException; import jakarta.servlet.annotation.WebServlet; import jakarta.servlet.http.Cookie; import jakarta.servlet.http.HttpServlet; import jakarta.servlet.http.HttpServletRequest; import jakarta.servlet.http.HttpServletResponse; @WebServlet("/SetCookieServlet") public class SetCookieServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Create a cookie with name "EMPID" and value "AN2356" Cookie empIdCookie = new Cookie("EMPID", "AN2356"); // Set the maximum age of the cookie in seconds (optional) empIdCookie.setMaxAge(60 * 60 * 24); // 1 day // Add the cookie to the response response.addCookie(empIdCookie); // Inform the client that the cookie has been set response.getWriter().println("Cookie 'EMPID' set with value 'AN2356'.");
- 2. response.setContentType("text/html"); PrintWriter out=response.getWriter(); out.println("<!DOCTYPE html>"); out.println("<html>"); out.println(" <head>"); out.println("<title>Insert title here</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1><a href='ReadCookieServlet'>Go to Read</a></h1> "); out.println("</body>"); out.println("</html>"); } } ReadCookieServlet.java import java.io.IOException; import jakarta.servlet.ServletException; import jakarta.servlet.annotation.WebServlet; import jakarta.servlet.http.Cookie; import jakarta.servlet.http.HttpServlet; import jakarta.servlet.http.HttpServletRequest; import jakarta.servlet.http.HttpServletResponse; @WebServlet("/ReadCookieServlet") public class ReadCookieServlet extends HttpServlet {
- 3. private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Get an array of Cookies from the request Cookie[] cookies = request.getCookies(); // Initialize a variable to store the EMPID value String empIdValue = null; // Check if cookies are not null if (cookies != null) { // Iterate through the cookies to find the one with name "EMPID" for (Cookie cookie : cookies) { if (cookie.getName().equals("EMPID")) { empIdValue = cookie.getValue(); break; } } } // Display the EMPID value or an appropriate message if (empIdValue != null) { response.getWriter().println("EMPID cookie value: " + empIdValue); } else { response.getWriter().println("EMPID cookie not found."); } } }