我无法使用jstl打印或从hashmap的arraylist获取数据。我想在表格的arraylist中显示每个bug的详细信息，比如bug的id、创建日期、摘要、白板。下面是jsp和servlet代码。请建议修理。
家。jsp:-

<form action="IncomingBugs">
<table class="ui single line table">
<thead>
<tr>
  <th>Bug Id</th>
  <th>Creation Date</th>
  <th>Summary</th>
  <th>Whiteboard</th>
</tr>
</thead>
<tbody>
  <c:forEach var="row" items="${list}"> 
    <tr>
    <td><c:out value="${row.bug_id}"/></td>
    <td><c:out value="${row.creation_ts}"/></td>
    <td><c:out value="${row.short_desc}"/></td>
    <td><c:out value="${row.status_whiteboard}"/></td>
</tr>
 </c:forEach> 
 </tbody>
 </table>
 </form>

虫子。jsp:-

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
            OracleConnection oc=new OracleConnection();

    try {
        ArrayList<HashMap<String, Object>> bugList=oc.getbugList(null);

        ArrayList<HashMap<String, String>> blr=new ArrayList<HashMap<String, String>>();
         for (HashMap<String, Object> bugMap : bugList) 
        {
             HashMap<String,String> bl=new HashMap<String, String>();
             String bugzilla_id = bugMap.get("bug_id").toString();
             String creation_ts = bugMap.get("creation_ts").toString();
             String short_desc = bugMap.get("short_desc").toString();
             String status_whiteboard=bugMap.get("status_whiteboard").toString();
             bl.put("bug_id", bugzilla_id);
             bl.put("creation_ts", creation_ts);
             bl.put("short_desc", short_desc);
             bl.put("status_whiteboard", status_whiteboard);
             blr.add(bl);
        }
         request.setAttribute("list",blr);
        RequestDispatcher dispatcher = request.getRequestDispatcher("/home.jsp");
        dispatcher.forward(request, response);

    }

下面是我想要打印的java示例代码table:-

ArrayList<HashMap<String, Object>> bugList = (ArrayList<HashMap<String, Object>>)request.getAttribute("list");
 for (HashMap<String, Object> bugMap : bugList) 
{           
     String bugzilla_id = bugMap.get("bug_id").toString();
     String creation_ts = bugMap.get("creation_ts").toString();
     String summary = bugMap.get("summary").toString();
     String status_whiteboard=bugMap.get("status_whiteboard").toString();
     out.println("<tr>");
     out.println("<td>"+bugzilla_id+"</td>");
     out.println("<td>"+creation_ts+"</td>");
     out.println("<td>"+summary+"</td>");
     out.println("<td>"+status_whiteboard+"</td>");
     out.println("</tr>");
}