jsp java 读写cookie

读cookie

//读取cookie
String loginType = "";
String strgrouploginid = "";
String strloginid = "";

Cookie[] cookies = request.getCookies(); 
if(cookies!=null)
{
    
    for (int i = 0; i < cookies.length; i++ )
    {
        Cookie c = cookies[i];
        if(c.getName().equalsIgnoreCase("loginType"))
        {
            loginType = c.getValue();
        }
        else if(c.getName().equalsIgnoreCase("strgrouploginid"))
        {
            strgrouploginid = c.getValue();
        }
        else if(c.getName().equalsIgnoreCase("strloginid"))
        {
            strloginid = c.getValue();
        }
    }
}

写cookie

private void setCookie(String loginType,String strgrouploginid,String strloginid,HttpServletRequest request,HttpServletResponse response)
    {
        //清除cookie
        Cookie[] cookies = request.getCookies(); 
        if(cookies!=null)
        {
            
            for (int i = 0; i < cookies.length; i++ )
            {
                Cookie c = cookies[i];
                if(c.getName().equalsIgnoreCase("loginType"))
                {
                    Cookie loginTypeCookie = new Cookie("loginType",null);
                    response.addCookie(loginTypeCookie);
                }
                else if(c.getName().equalsIgnoreCase("strgrouploginid"))
                {
                    Cookie strgrouploginidCookie = new Cookie("strgrouploginid",null);
                    response.addCookie(strgrouploginidCookie);
                }
                else if(c.getName().equalsIgnoreCase("strloginid"))
                {
                    Cookie strloginidCookie = new Cookie("strloginid",null);
                    response.addCookie(strloginidCookie);
                }
            }
        }
        //写cookie
        Cookie loginTypeCookie = new Cookie("loginType",loginType);
        Cookie strgrouploginidCookie = new Cookie("strgrouploginid",strgrouploginid);
        Cookie strloginidCookie = new Cookie("strloginid",strloginid);
        loginTypeCookie.setMaxAge(COOKIE_ALIVE_TIME);
        strgrouploginidCookie.setMaxAge(COOKIE_ALIVE_TIME);
        strloginidCookie.setMaxAge(COOKIE_ALIVE_TIME);
        response.addCookie(loginTypeCookie);
        response.addCookie(strgrouploginidCookie);
        response.addCookie(strloginidCookie);
        
    }