提交JSP后如何保持引导程序模态

Question

提交模态表格后如何保持引导模态。当我们提交表单时，整个页面都会刷新。但是我只需要模式div刷新。如果我保持模式数据不传递给jsp。我该怎么做请帮忙

enter image description here

     <p>Node</p>
    </div>        
      <div class="modal-body"  >
          <form name="myform">
        <label>From<input class="date" id="from1" name="from1" type="date" value=${from1}></label><label>To<input class="date" id="to1" name="to1" type="date" value=${to1}></label>
        <input type="submit" value="Filter" class="btn btn-default" name="Filter" onclick="openmodel()">    
        </form>
    </div>
  <%
    try{
         //Class.forName("com.mysql.jdbc.Driver"); //load driver 

         //Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/testdb","root","mobitel"); //create connection 

         String Name = "nn",Value,to;
         Integer count;

         //if(request.getParameter("Filter")!= null)
         //{

             String from ="as";
             from = request.getParameter("from1");
             out.println(from);
             //PreparedStatement pstmt=null; // create statement
             //pstmt=con.prepareStatement("SELECT NodeName,Count(NodeName) as occur  FROM testdb.node  group by NodeName" ); // sql select query
             //pstmt.setString(1,from);
             //pstmt.setString(1,to);
             //ResultSet rs=pstmt.executeQuery();

             //while(rs.next())
             //{

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