Returns the cookie value for a specific cookie in the a request. - Java Servlet JSP

Java examples for Servlet JSP:Cookie

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Description

Returns the cookie value for a specific cookie in the a request.

Demo Code

/*/*from  ww  w  . j  av  a  2  s .c om*/
 * Copyright 2008 University of California at Berkeley
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Main{
    /**
     * Returns the cookie value for a specific cookie in the a request.
     * 
     * @param request the request
     * @param cookieName the name of the cookie
     * @return the cookie value
     */
    public static String getRequestCookieValue(HttpServletRequest request,
            String cookieName) {
        if (request == null || request.getCookies() == null) {
            return null;
        }
        for (Cookie c : request.getCookies()) {
            if (c == null) {
                continue;
            }
            if (c.getName().equalsIgnoreCase(cookieName)) {
                return c.getValue();
            }
        }
        return null;
    }
}

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