java中Cookie的创建和删除

//添加Cookie对象
Cookie cookie = new Cookie("key", "value");
//设置60秒生存期，如果设置为负值的话，则为浏览器进程Cookie(内存中保存)，关闭浏览器就失效
cookie.setMaxAge(60);
//发送Cookie
response.addCookie(cookie);

Cookie newCookie=new Cookie("对应的名字","");  
newCookie.setMaxAge(0); 
response.addCookie(newCookie); 

  Cookie[] cookies = request.getCookies();
    for (Cookie cookie : cookies) {
            if("name".equals(cookie)){
                Cookie cookie2 = new Cookie("name","修改value值");
                cookie1.setMaxAge(60);
                response.addCookie(cookie2);
           }
        }