JavaWeb - Util 之 CookieUtil

packagecom.mmall.util;
importlombok.extern.slf4j.Slf4j;
importorg.apache.commons.lang.StringUtils;
importjavax.servlet.http.Cookie;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
@Slf4jpublicclassCookieUtil {
privatefinalstaticStringCOOKIE_DOMAIN=".happymmall.com";
privatefinalstaticStringCOOKIE_NAME="mmall_login_token";
publicstaticStringreadLoginToken(HttpServletRequestrequest){
Cookie[] cks=request.getCookies();
if(cks!=null){
for(Cookieck : cks){
log.info("read cookieName:{},cookieValue:{}",ck.getName(),ck.getValue());
if(StringUtils.equals(ck.getName(),COOKIE_NAME)){
log.info("return cookieName:{},cookieValue:{}",ck.getName(),ck.getValue());
returnck.getValue();
                }
            }
        }
returnnull;
    }
//X:domain=".happymmall.com"//a:A.happymmall.com            cookie:domain=A.happymmall.com;path="/"//b:B.happymmall.com            cookie:domain=B.happymmall.com;path="/"//c:A.happymmall.com/test/cc    cookie:domain=A.happymmall.com;path="/test/cc"//d:A.happymmall.com/test/dd    cookie:domain=A.happymmall.com;path="/test/dd"//e:A.happymmall.com/test       cookie:domain=A.happymmall.com;path="/test"publicstaticvoidwriteLoginToken(HttpServletResponseresponse,Stringtoken){
Cookieck=newCookie(COOKIE_NAME,token);
ck.setDomain(COOKIE_DOMAIN);
ck.setPath("/");//代表设置在根目录ck.setHttpOnly(true);
// 单位是秒。// setMaxAge() 设置值大于0, 将cookie存储于本地磁盘, 过期后删除// setMaxAge() 设置值小于0, cookie不会保存于本地, 浏览器会话结束后, 将会删除, 经过在Mac上的chorme测试, 需要结束进程后cookie才会从内存中删除// setMaxAge() 设置值等于0, 立即删除cookieck.setMaxAge(60*60*24*365);
log.info("write cookieName:{},cookieValue:{}",ck.getName(),ck.getValue());
response.addCookie(ck);
    }
publicstaticvoiddelLoginToken(HttpServletRequestrequest,HttpServletResponseresponse){
Cookie[] cks=request.getCookies();
if(cks!=null){
for(Cookieck : cks){
if(StringUtils.equals(ck.getName(),COOKIE_NAME)){
ck.setDomain(COOKIE_DOMAIN);
ck.setPath("/");
ck.setMaxAge(0); // 设置成0，代表删除此cookielog.info("del cookieName:{},cookieValue:{}",ck.getName(),ck.getValue());
response.addCookie(ck);
return;
                }
            }
        }
    }
}