We know that the ASP has six built-in objects, JSPs and ASPs have built-in objects, but what few, I have seen it seems to be inconsistent. Today I deliberately find it, discover JSP has the following built-in object: ServletContex type Application object servletconfig type Config object jspwriter type OUT object Object type Page object (here? ??) PageContext type PageContext object httpservletRequest Type The Request object httpresponse type Response object httpsession type SESSION object ASP often used cookies is not built-in object. You can get a cookie, then call the response.addcookie () method, then get all the Cookies of the client from the request.getCookies () method.
