各路大神，跪求解决方法！？HTTP Status 500 - Malformed OGNL expression:

Question

JSP页面：<li><a href="Student_Query_Electric_bill?type=0&studentnum=<s:property value="#session.loginUserNum"/>" target="MainFrame">电费</a></li>struts.xml代码：       <action name="Student_Query_Electric_bill" class="action.BillAction" method="studnetQueryBill()">            <result name="student_QueryBill_success">/bill/student_electric_bill.jsp</result>        </action>Java代码： public String studnetQueryBill(){ BillDao bdao = new BillDaoImpl(); String studentNum = request.getParameter("studentnum"); String type = request.getParameter("type"); Bill bill = bdao.studentQueryBill(studentNum,type); session.setAttribute("Bill", bill); return "student_QueryBill_success"; }

Answer 1

表达式错误  s property里面用单引号