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// Here I'm learning about javax.servlet.http.Cookie |
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// TempCookie is just a Cookie implemented with default 60 second maxAge |
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// TempCookie can be replaced by Cookie |
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<%@page import="demo.TempCookie"%> |
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1" |
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pageEncoding="ISO-8859-1"%> |
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<% |
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String action; |
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String submitValue = request.getParameter("submit"); |
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if(submitValue!=null){ |
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action = submitValue; |
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} else { |
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action = ""; |
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} |
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String cookieName=request.getParameter("cookieName"); |
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String cookieValue=request.getParameter("cookieValue"); |
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String isPersistent=request.getParameter("isPersistent"); |
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String message=""; |
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switch(action){ |
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case "Set": |
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Cookie cookie1 = new TempCookie(cookieName, cookieValue); |
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if(isPersistent !=null){ cookie1.setMaxAge(2); } // 2 second expiry |
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response.addCookie( cookie1); |
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break; |
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case "Get": |
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Cookie[] cookieList1 = request.getCookies(); |
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for(Cookie cookie2: cookieList1){ |
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if(cookie2.getName().equals(cookieName)){ |
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cookieValue = cookie2.getValue(); |
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} |
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} |
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break; |
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case "Remove": |
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// Create a cookie with the same name. Once added to response, it replaces the existing cookie |
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Cookie cookie3 = new TempCookie(cookieName, ""); |
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cookie3.setMaxAge(0); |
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response.addCookie(cookie3); |
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break; |
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case "Show All": |
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Cookie[] cookieList2 = request.getCookies(); |
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for(Cookie cookie4: cookieList2){ |
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message += cookie4.getName() + " : " + cookie4.getValue() + "<br/>"; //Should use str bulder |
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} |
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break; |
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default: |
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break; |
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} |
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%> |
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
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<html> |
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<head> |
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> |
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<title>Postback form</title> |
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</head> |
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<body bgcolor="pink"> |
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<h2>Postback form</h2> |
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<form method="post"> |
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Name: <input type="text" name="cookieName" value="<%= cookieName%>"><br> |
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Value: <input type="text" name="cookieValue" value="<%= cookieValue%>"><br><br> |
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<input type="checkbox" name="isPersistent">Make Persistent<br><br> |
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<input type="submit" name="submit" value="Set"> |
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<input type="submit" name="submit" value="Get"> |
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<input type="submit" name="submit" value="Remove"> |
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<input type="submit" name="submit" value="Show All"> |
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</form> |
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<hr/> |
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<%= message %> |
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</body> |
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</html> |
