如果checklogin.jsp有
<%
String username1=request.getParameter("username");
String password1=request.getParameter("password");
... ...if (rs.next()){
session.setAttribute("usernam",username1);
session.setAttribute("password",password1);
response.sendRedirect("admin/admin.jsp");
} else{
response.sendRedirect("err.jsp");
}
%>在admin.jsp中
<%
out.print(session.getAttribute("username"));
out.print(session.getAttribute("password"));
%>输出的值为null null,请问我的方法为什么不对,怎么才能得到username的值?