单项选择题
Given an HttpServletRequest request and an HttpServletResponse response: 41.HttpSession session = null; 42.// insert code here 43.if(session == null) { 44.// do something if session does not exist 45.} else { 46.// do something if session exists47. } To implement the design intent,which statement must be inserted at line 42?()
A.session = response.getSession(); B.session = request.getSession(); C.session = request.getSession(true); D.session = request.getSession(false); E.session = request.getSession("jsessionid");
多项选择题 WhichtwostatementsaretrueaboutusingtheisUserInRolemethodtoimplementsecurityinaJavaEEapplication?()
多项选择题 Whichtwoarerequiredelementsfortheelementofawebapplicationdeploymentdescriptor?()
单项选择题 Whichelementofawebapplicationdeploymentdescriptorelementisrequired?()