A.調(diào)用HttpServletRequest對象的getAttribute()方法B.調(diào)用ServletContext對象的getAttribute()方法C.調(diào)用HttpServletRequest對象的getParameter()方法
A.http://localhost:8080/hello.jsp B.http://localhost:8080/helloapp/hello.jsp C.http://localhost:8080/helloapp/hello/hello.jsp
A.pageContext B.session C.request D.application