一个jsp文件不能显示的问题？
我在做一个留言板，其中有个articlelist.jsp显示文章列表的页面，但一直都打不开。articlelist.jsp代码如下：
<!-- //留言列表页面 --><%@ page contentType="text/html;charset=gb2312" %><%@ page isELIgnored="false" %><%@ page import="ch.*"%><html><head> <script language="javascript" src="/messageboard/fckeditor/fckeditor.js">fuction checkValue(){ var f=document.forms["main"]; if(f.title.value.lentgh==0) { alert("请输入留言的标题"); f.title.focus(); return false; } if(f.content.value.length==0) { alert("请输入留言的内容"); f.content.focus(); return false; } return true;}</script></head> <body bgcolor="#000000" text="#fffaa"> <center> <table border="1" width="600"> <tr> <td colspan="3" align="center">留言列表(<a href="logout">退出</a>)</td> </tr> <tr> <td colspan="3" align="left"><font color="red"> ${msg}</font></td> </tr> </table> <table border="2" width="600"> <% //取得session中的用户信息 UserInfo user=(UserInfo)session.getAttribute("session_userinfo"); //取得留言列表 java.util.Vector articles=(java.util.Vector)request.getAttribute("articles"); //取得回复留言列表 java.util.Vector replys=(java.util.Vector)request.getAttribute("replys"); //逐步显示每一条留言的内容 for(int i=0;i<articles.size();i++) { Article art=(Article)articles.get(i); %> <tr> <td width="15" rowspan="2"> <%=(i+1) %> </td> <td> <%=art.getTitle() %> ( <%=art.getPubdate() %> ) </td> <td> <%=art.getUserID() %> ( <%=art.getHostIP() %> ) <% if(art.getUserID()==user.getUserID()) out.println("<a href=\"articleupdate?articleid="+art.getArticleID()+"\">修改</a> "); if(art.getUserID()==user.getUserID()||user.isAdmin()) out.println("<a href=\"articledelete?articleid="+art.getArticleID()+"\">删除</a>"); if(user.isAdmin()) out.println("<a href=\"articlereply?articleid="+art.getArticleID()+"\">回复</a>"); %> </td> </tr> <tr> <td colspan="2"><%=art.getContent() %></td> </tr> <% for(int j=0;j<replys.size();j++) { Article reply=(Article)replys.get(j); if(reply.getFarticleID()==art.getArticleID()) { %> <tr> <td width="15" rowspan="2"><font color="blue">回<br>复</font></td> <td><%=reply.getTitle() %>(<%=reply.getPubdate() %>)</td> <td><%=reply.getUserID() %> (<%=reply.getHostIP() %>) <% if(reply.getUserID()==user.getUserID())//?????????????????????????? out.println("<a href=\"articleupdate?articleid="+reply.getArticleID()+"\">修改</a> "); if(reply.getUserID()==user.getUserID()||user.isAdmin()) out.println("<a href=\"articledelete?articleid="+reply.getArticleID()+"\">删除</a>"); %> </td> </tr> <tr> <td colspan="2"><%=reply.getContent()%></td> </tr> <% } } } %> </table> <% PageBean pb=(PageBean)request.getAttribute("pagebean"); if(pb!=null&&pb.hasMorePage()) { pb.setURLPattern("<a href=\"articlelist?currentpage=CURRENTPAGE\">TITLE</a>"); %> <p> <table border="1" width="400"> <tr> <td align="center"> <%=pb.getFirstURL("首页") %> <%=pb.getPrevURL("前一页") %> <%=pb.getNextURL("后一页") %> <%=pb.getLastURL("末页") %> </td> </tr> </table> <% } %> <p> <form name="main" method="post" action="ch/ArticleAdd" onsubmit="return checkValue();"> <input type="hidden" name="articleid" value="${art.articleID}"> <table border="1" width="400"> <tr> <td colspan="2" align="center">发表留言</td> </tr> <tr> <td align="right">标题:</td> <td><input type="text" name="title" maxlength="32" value="${art.title}"></td> </tr> <tr> <td align="right">内容:</td> <td>"<script type="text/javascript"> var editor=new FCKeditor('content'); editor.BasePath='/messageboard/fckeditor/'; editor.Height=200; editor.ToolbarSet='Basic'; editor.Create(); </script></td> </tr> <tr> <td colspan="2" align="center"><input type="submit" value="提交"> <input type="reset" value="重填"></td> </tr> </table> </form> </center> </body></html>
//取得session中的用户信息UserInfo user=(UserInfo)session.getAttribute("session_userinfo"); //取得留言列表java.util.Vector articles=(java.util.Vector)request.getAttribute("articles"); //取得回复留言列表java.util.Vector replys=(java.util.Vector)request.getAttribute("replys");