cookie的创建和获取

Cookie cookie = new Cookie("username","helloweenvsfei");   // 新建Cookie

cookie.setMaxAge(Integer.MAX_VALUE);           // 设置生命周期为MAX_VALUE

response.addCookie(cookie);                    // 输出到客户端

 // 获取request里面的cookie cookie里面存值方式也是 键值对的方式 
Cookie[] cookie = request.getCookies();
for (int i = 0; i < cookie.length; i++) {
Cookie cook = cookie[i];
if(cook.getName().equalsIgnoreCase("eredg4.login.account")){ //获取键 
System.out.println("account:"+cook.getValue().toString());    //获取值 
}
}