public class StudentsAction extends SuperAction{ private static final long serialVersionUID = 1L; public String query(){Go StudentsDAO sdao = new StudentsDAOImpl(); List<Students> list = sdao.queryAllStudents(); if(list!=null&&list.size()>0) { session.setAttribute("students_list", list); } System.out.println(list.size()); return "query_success"; }}struts.xml:? ?<package name="students" ?namespace="/students" extends="default"> ?? ? ? ? ?<action name="*_*" class="action.{1}Action" method="{2}">? ? ? ?<result name="query_success">/students/Students_query_success.jsp</result> ?? ? ? ?</action> ?? ? ? ?</package>tree.jsp:var treeMenu = [ { level:1, name:"學生管理"}, { level:2, name:"學生列表", ico:"images/icon_default.gif",link:"students/Students_query.action"}, { level:1, name:"教師管理"}, { level:2, name:"教師列表", ico:"images/icon_default.gif",link:"role_list.html"}, { level:1, name:"信息管理"}, { level:2, name:"新聞管理", ico:"images/icon_default.gif",link:"news_list.html"}, { level:2, name:"公告管理", ico:"images/icon_default.gif",link:"bulletin_list.html"}, { level:1, name:"系統郵件", ico:"images/icon_default.gif"}, { level:1, name:"網絡文件", ico:"images/icon_default.gif",link:"complaint_list.html"}];Student_query_success.jsp: <!-- 遍歷開始 --> <s:iterator value="#session.students_list" var="stu"> <tr class="list"> <td><s:property value="#stu.sid"/></td> <td><s:property value="#stu.sname"/></td> <td><s:property value="#stu.gender"/></td> <td><s:date name="#stu.birthday" format="yyyy年MM月dd日"/></td> <td><s:property value="#stu.address"/></td> <td><a href="#">刪除</a></td> </tr> </s:iterator> <!-- 遍歷結束 -->