Enumeration遍历

<%@page import="java.util.*" %>
<%
Enumeration<String> paraNames = session.getAttributeNames();
for(Enumeration e=paraNames;e.hasMoreElements();){
 
    String thisName=e.nextElement().toString();
    String thisValue=request.getParameter(thisName);
    System.out.println(thisName+"--------------"+thisValue);


}
Enumeration<String> paraNames2 = request.getAttributeNames();
for(Enumeration e=paraNames2;e.hasMoreElements();){
 
    String thisName=e.nextElement().toString();
    String thisValue=request.getParameter(thisName);
    System.out.println(thisName+"--------------"+thisValue);
}

%>

   while(enums.hasMoreElements());

              {

                 String v=(String)enums.nextElement();

                 System.out.println(v);

              }