how to create a cookie and add to http response from inside my service layer

Question

I am creating a custom authentication service in my spring mvc application    Service public class AuthenticationServiceImpl implements AuthenticationService        Autowired    UserService userService       Override    public void login String email  String password           boolean isValid   userService isValidLogin email  password          if isValid                     create a session cookie and add to http response                    How can I create and add the cookie to the response

User · Answer

A cookie is a object with key value pair to store information related to the customer. Main objective is to personalize the customer's experience.

An utility method can be created like

private Cookie createCookie(String cookieName, String cookieValue) {
    Cookie cookie = new Cookie(cookieName, cookieValue);
    cookie.setPath("/");
    cookie.setMaxAge(MAX_AGE_SECONDS);
    cookie.setHttpOnly(true);
    cookie.setSecure(true);
    return cookie;
}

If storing important information then we should alsways put setHttpOnly so that the cookie cannot be accessed/modified via javascript. setSecure is applicable if you are want cookies to be accessed only over https protocol.

using above utility method you can add cookies to response as

Cookie cookie = createCookie("name","value");
response.addCookie(cookie);

User · Answer

To add a new cookie  use HttpServletResponse addCookie Cookie   The Cookie is pretty much a key value pair taking a name and value as strings on construction

User · Answer

Following  Aravind s answer with more details   RequestMapping   myPath htm   public ModelAndView add HttpServletRequest request  HttpServletResponse response  throws Exception      myServiceMethodSettingCookie request  response            Do service call passing the response     return new ModelAndView  CustomerAddView          service method void myServiceMethodSettingCookie HttpServletRequest request  HttpServletResponse response       final String cookieName    my cool cookie       final String cookieValue    my cool value here         you could assign it some encoded value     final Boolean useSecureCookie   false      final int expiryTime   60   60   24      24h in seconds     final String cookiePath             Cookie cookie   new Cookie cookieName  cookieValue        cookie setSecure useSecureCookie       determines whether the cookie should only be sent using a secure protocol  such as HTTPS or SSL      cookie setMaxAge expiryTime       A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits  A zero value causes the cookie to be deleted       cookie setPath cookiePath       The cookie is visible to all the pages in the directory you specify  and all the pages in that directory s subdirectories      response addCookie cookie       Related docs   http   docs oracle com javaee 7 api javax servlet http Cookie html  http   docs spring io spring-security site docs 3 0 x reference springsecurity html

User · Answer

In Spring MVC you get the HtppServletResponce object by default        RequestMapping   myPath htm       public ModelAndView add HttpServletRequest request           HttpServletResponse response  throws Exception                Do service call passing the response     return new ModelAndView  CustomerAddView             Service code Cookie myCookie     new Cookie  name    val      response addCookie myCookie

[java] how to create a cookie and add to http response from inside my service layer?

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