Java Cookie工具类，Java CookieUtils 工具类，Java如何增加Cookie

 

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©Copyright 蕃薯耀 2017年7月15日

http://www.cnblogs.com/fanshuyao/

 

import java.io.IOException;import java.util.HashMap;import java.util.Map;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class CookieUtils {		public static final int COOKIE_MAX_AGE = 7 * 24 * 3600;	public static final int COOKIE_HALF_HOUR = 30 * 60;	      /**      * 根据Cookie名称得到Cookie对象，不存在该对象则返回Null      *       * @param request      * @param name      * @return      */      public static Cookie getCookie(HttpServletRequest request, String name) {          Cookie[] cookies = request.getCookies();          if (StrUtils.isEmptyArray(cookies)) {              return null;          }          Cookie cookie = null;          for (Cookie c : cookies) {            if (name.equals(c.getName())) {                  cookie = c;                  break;              }          }          return cookie;      }        /**      * 根据Cookie名称直接得到Cookie值     *       * @param request      * @param name      * @return      */      public static String getCookieValue(HttpServletRequest request, String name) {          Cookie cookie = getCookie(request, name);          if(cookie != null){        	return cookie.getValue();        }        return null;      }        /**     * 移除cookie     * @param request     * @param response     * @param name 这个是名称，不是值     */    public static void removeCookie(HttpServletRequest request,              HttpServletResponse response, String name) {          if (null == name) {              return;          }          Cookie cookie = getCookie(request, name);          if(null != cookie){              cookie.setPath("/");              cookie.setValue("");              cookie.setMaxAge(0);              response.addCookie(cookie);        }      }        /**      * 添加一条新的Cookie，可以指定过期时间(单位：秒)      *       * @param response      * @param name      * @param value      * @param maxValue      */      public static void setCookie(HttpServletResponse response, String name,              String value, int maxValue) {          if (StrUtils.isBlank(name)) {              return;          }          if (null == value) {              value = "";          }          Cookie cookie = new Cookie(name, value);          cookie.setPath("/");          if (maxValue != 0) {              cookie.setMaxAge(maxValue);          } else {              cookie.setMaxAge(COOKIE_HALF_HOUR);          }          response.addCookie(cookie);        try {			response.flushBuffer();		} catch (IOException e) {			e.printStackTrace();		}    }         /**      * 添加一条新的Cookie，默认30分钟过期时间     *       * @param response      * @param name      * @param value      */      public static void setCookie(HttpServletResponse response, String name,              String value) {          setCookie(response, name, value, COOKIE_HALF_HOUR);      }   	/**	 * 将cookie封装到Map里面	 * @param request	 * @return	 */	public static Map
     
       getCookieMap(HttpServletRequest request){  	    Map
      
        cookieMap = new HashMap
       
        ();	    Cookie[] cookies = request.getCookies();	    if(!StrUtils.isEmptyArray(cookies)){	        for(Cookie cookie : cookies){	            cookieMap.put(cookie.getName(), cookie);	        }	    }	    return cookieMap;	}		}
       
      
     

　　

 

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©Copyright 蕃薯耀 2017年7月15日

http://www.cnblogs.com/fanshuyao/