问题:
For debugging purposes, you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database.
Which JSPcode snippet keeps track of this count for the lifetime of the JSP page?()
A . <%! int count = 0; %><% if ( request.getSession(false) == null ) count++; %>
B . <%@ int count = 0; %>. <% if ( request.getSession(false) == null ) count++; %>
C . <% int count = 0;. if ( request.getSession(false) == null ) count++; %>
D . <%@ int count = 0;. if ( request.getSession(false) == null ) count++; %>
E . <%! int count = 0;. if ( request.getSession(false) == null ) count++; %>
For debugging purposes, you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database.
Which JSPcode snippet keeps track of this count for the lifetime of the JSP page?()
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