http cookie 手记

新增

private void addCookie(HttpServletResponse response, String name, String value) {
        Cookie cookie = new Cookie(name.trim(), value.trim());
        cookie.setPath("/");
        cookie.setDomain("baidu.com");
        response.addCookie(cookie);
    }

修改

public void editCookie(HttpServletRequest request, HttpServletResponse response, String name, String value) {
        Cookie[] cookies = request.getCookies();
        if (null == cookies) {
            log.info("cookie is null");
        } else {
            for (Cookie cookie : cookies) {
                if (cookie.getName().equals(name)) {
                    log.info("cookie: " + cookie.getName() + ",before edit: " + cookie.getValue());
                    cookie.setValue(value);
                    cookie.setPath("/");
                    cookie.setDomain("baidu.com");
                    log.info("after edit: " + cookie.getValue());
                    response.addCookie(cookie);
                    break;
                }
            }
        }
    }

删除

     Cookie newCookie= for 循环找到cookie对象，然后设置一下参数
     newCookie.setMaxAge(0);            
     newCookie.setPath("/");           
     cookie.setDomain("baidu.com");   
     response.addCookie(newCookie);     //重新写入，将覆盖之前的