Java_CookieUtil
package com.willow.util; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * CookieUtil用来操作cookie的存取 * @author GetInstance * */ public class CookieUtil { /** * 添加cookie * @param name cookie的key * @param value cookie的value * @param domain domain * @param path path * @param maxage 最长存活时间 单位为秒 * @param response */ public static void addCookie(String name ,String value,String domain, int maxage,String path, HttpServletResponse response){ Cookie cookie = new Cookie(name,value); if(domain!=null){ cookie.setDomain(domain); } cookie.setMaxAge(maxage); cookie.setPath(path); response.addCookie(cookie); } /** * 往根下面存一个cookie * * @param name cookie的key * @param value cookie的value * @param domain domain * @param maxage 最长存活时间 单位为秒 * @param response */ public static void addCookie(String name ,String value,String domain, int maxage, HttpServletResponse response){ addCookie(name, value,domain, maxage, "/" , response); } /** * 从cookie值返回cookie值,如果没有返回 null * @param req * @param name * @return cookie的值 */ public static String getCookie(HttpServletRequest request, String name) { Cookie[] cookies = request.getCookies(); if (cookies == null) return null; for (int i = 0; i < cookies.length; i++) { if (cookies[i].getName().equals(name)) { return cookies[i].getValue(); } } return null; } public static void removeCookie(String name, String domain, HttpServletRequest request, HttpServletResponse response) { String cookieVal = getCookie(request,name); if(cookieVal!=null){ CookieUtil.addCookie(name, null, domain, 0, response); } } public static void removeCookie(String name, HttpServletRequest request, HttpServletResponse response) { CookieUtil.removeCookie(name, ".dhgate.com", request, response); } }