cookie的基本使用

设置cookie

            Cookie cusername = new Cookie("username",username);            Cookie cpassword = new Cookie("password",password);            //5分钟失效            cusername.setMaxAge(60*5);            cpassword.setMaxAge(60*5);            response.addCookie(cusername);            response.addCookie(cpassword);

读取cookie

if(cookies!=null){            for(Cookie cookie : cookies){                      if("username".equals(cookie.getName())){                        username = cookie.getValue();                    }if("password".equals(cookie.getName())){                        password = cookie.getValue();                            }                        }

删除cookie

Cookie cusername = new Cookie("username",null);        Cookie cpassword = new Cookie("password",null);        cusername.setMaxAge(0);        cpassword.setMaxAge(0);        response.addCookie(cusername);        response.addCookie(cpassword);