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8.6 A Customized Search Engine Interface

Listing 8.3 ServletUtilities.java

package coreservlets;

import javax.servlet.*;

import javax.servlet.http.*;

public class ServletUtilities {

// Other methods in this class shown in earlier chapters.

  public static String getCookieValue(Cookie[] cookies,

                                      String cookieName,

                                      String defaultValue) {

    for(int i=0; i

      Cookie cookie = cookies[i];

      if (cookieName.equals(cookie.getName()))

        return(cookie.getValue());

    return(defaultValue);

  public static Cookie getCookie(Cookie[] cookies,

                                 String cookieName) {

    for(int i=0; i

      Cookie cookie = cookies[i];

      if (cookieName.equals(cookie.getName()))

        return(cookie);

    return(null);

Creating Long Lived Cookies

Listing 8.4 shows a small class that you can use instead of

Cookie

 if you want

your cookie to automatically persist when the client quits the browser. See

Listing 8.5 for a servlet that uses this class.

8.6 A Customized Search Engine

Interface

Listing 8.5 shows the

CustomizedSearchEngines

 servlet, a variation of the

SearchEngines

 example previously shown in Section 6.3. Like the

Search

Engines

 servlet (see Figure 8 5), the

CustomizedSearchEngines

 servlet

Second edition of this book: www.coreservlets.com; Sequel: www.moreservlets.com.

Servlet and JSP training courses by book's author: courses.coreservlets.com.

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