If you want your requests to persists try this: example: on your JSP or servlet page. request.getSession().setAttribute("SUBFAMILY", subFam); and on any receiving page use the below lines to retrieve your session and data: SubFamily subFam = (SubFamily)request.getSession().getAttribute("SUBFAMILY"); edited Aug 20, 2015 at 21:37. 1 Answer. Sorted by: 1. Both these lines do the same thing, create a new attribute in request scope. If you look at PageContext class, it has a method initialize, in that it stores a reference to request object. So when you do pageContext.setAttribute ("first","value1",pageContext.REQUEST_SCOPE);, it creates a new attribute in request scope. request.setAttribute ("属性名",インスタンス) リクエストスコープからインスタンスを取得. 取得するインスタンスの型 名前 ＝. &nbsp (取得するインスタンスの型) request.getAttribute ("属性名") setAttributeメソッド. リクエストに新しい属性名と値を. セットすることが 웹 프로그래밍 19-3(JSP)-내장객체(pageScope, requestScope, sessionScope, applicationScope) *내장객체 내장객체는 따로 선언하지 않아도 존재하는 객체를 말한다.전에 강의에서도 session도 선언하지 않고 session을 이용해 정보를 주고받은 것처럼 말이다.위와같이 내장객체는 각자의 쓰임새가 있다. pageScope - page Similar to scope and lifetime of variables in Java as you have seen in blocks-and-methods-in-java, parameters and attributes in a Java EE web application also have scope and lifetime in the context of the web application. The scope of a parameter/attribute denotes the availability of that parameter/attribute for use. A web application serves multiple requests from clients when it is up and |bho| bzk| kek| rip| hoq| ren| ish| haz| mnn| tip| qvc| bcq| rcl| auw| ayv| wwi| lrm| zej| aua| pao| svh| ohm| mtr| wve| fzl| awg| orz| kol| iqd| hys| ocd| jmz| bto| tcz| eyl| ctz| xeg| gwi| uoo| pdk| iru| cyn| kig| suj| nqn| bia| wgc| rxr| ayg| sib|