Cookie工具类，提供Cookie的创建、获取、删除方法。
源码如下：(点击下载 -CookieUtil.java )
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; /**
* Cookie工具类
*
*/
public class CookieUtil { private CookieUtil() {
} /**
* 添加cookie
*
* @param response
* @param name
* @param value
* @param maxAge
*/
public static void addCookie(HttpServletResponse response, String name, String value, int maxAge) {
Cookie cookie = new Cookie(name, value);
cookie.setPath("/");
if (maxAge > 0) {
cookie.setMaxAge(maxAge);
}
response.addCookie(cookie);
} /**
* 删除cookie
*
* @param response
* @param name
*/
public static void removeCookie(HttpServletResponse response, String name) {
Cookie uid = new Cookie(name, null);
uid.setPath("/");
uid.setMaxAge(0);
response.addCookie(uid);
} /**
* 获取cookie值
*
* @param request
* @return
*/
public static String getUid(HttpServletRequest request,String cookieName) {
Cookie cookies[] = request.getCookies();
for (Cookie cookie : cookies) {
if (cookie.getName().equals(cookieName)) {
return cookie.getValue();
}
}
return null;
}
}