九大隱式對象
JSP隱式對象的作用范圍僅限於Servlet的_jspService方法,所以在JSP聲明中不能使用這些隱式對象
PageContext pageContext= null;
HttpSession session= null;
ServletContext application= null;
ServletConfig config= null;
JspWriter out= null;
Object page= this;
Throwable exception= org.apache.jasper.runtime.JspRuntimeLibrary.getThrowable(request);
if (exception != null) {
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
還有Request Response 自己找個方法記住方便使用(rrcaoppse)