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SOLVED

Cookie not retrieved from getCookie method

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Level 4

We are setting a cookie through a model class:

ecs.setMaxAge(600);
response.addCookie(ecs);

 

I can see the cookie set in the Application cookies in the browser. However, when I try to retrieve this from the Servlet request.getCookie("ecs").getValue() I get a null pointer exception. This cookie is not being retrieved in the servlet. 

 

Kindly help in figuring out what could be the issue.

1 Accepted Solution

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Correct answer by
Level 8

hi @kirthim 

can you check the path in the application cookies browser .Since you have not set it explicitely it would take the current path 

You can set the path like below 

cookie.setPath("/");

Then try accessing the servlet it should come up . 

Also use the below snippet in case you want to iterate over the cookies and see if its coming 

 

 // extracted helper method
  private Cookie getCookie(HttpServletRequest request, String cookieName) {
    if (StringUtils.isBlank(cookieName)) {
      return null;
    } else {
      Cookie[] cookies = request.getCookies();
      if (cookies == null) {
        return null;
      } else {
        if (cookies.length > 0) {
          Cookie[] var3 = cookies;
          int var4 = cookies.length;
          for(int var5 = 0; var5 < var4; ++var5) {
            Cookie cookie = var3[var5];
            if (StringUtils.equals(cookieName, cookie.getName())) {
              return cookie;
            }
          }
        }
        return null;
      }
    }
  }

 

https://sourcedcode.com/blog/aem/get-cookie-example-of-aem-servlet-and-sling-model

 

 

Hope it helps

View solution in original post

3 Replies

Avatar

Correct answer by
Level 8

hi @kirthim 

can you check the path in the application cookies browser .Since you have not set it explicitely it would take the current path 

You can set the path like below 

cookie.setPath("/");

Then try accessing the servlet it should come up . 

Also use the below snippet in case you want to iterate over the cookies and see if its coming 

 

 // extracted helper method
  private Cookie getCookie(HttpServletRequest request, String cookieName) {
    if (StringUtils.isBlank(cookieName)) {
      return null;
    } else {
      Cookie[] cookies = request.getCookies();
      if (cookies == null) {
        return null;
      } else {
        if (cookies.length > 0) {
          Cookie[] var3 = cookies;
          int var4 = cookies.length;
          for(int var5 = 0; var5 < var4; ++var5) {
            Cookie cookie = var3[var5];
            if (StringUtils.equals(cookieName, cookie.getName())) {
              return cookie;
            }
          }
        }
        return null;
      }
    }
  }

 

https://sourcedcode.com/blog/aem/get-cookie-example-of-aem-servlet-and-sling-model

 

 

Hope it helps

Avatar

Level 3

@kirthim You need to set the cookie path as "/" while creating the cookie. Try below code to retrieve the cookie.

Cookie[] cookies = request.getCookies();
if (cookies != null) {
        for (Cookie cookie : cookies) {
               if (cookie.getName().equalsIgnoreCase("ecs")) {
                          cookie.getValue();
               }
        }
}

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Administrator

@kirthim  Do you find the suggestions from users useful? Please let us know if more information is required. Otherwise, please mark the answer as correct for posterity. 



Kautuk Sahni