how I can set value of from Action class

I have a jsp struts file with

<html:select styleId="selectedop" property="selectedop" onchange="javascript:submitit();" value="select">
     <html:option value="--select--">--select--</html:option>
     <%
          try {
               //to connect need wifi (since public ip)
               //String url = "jdbc:mysql://dbno2.ce6zvdgnoq7r.ap-southeast-2.rds.amazonaws.com:3306/INVENTRY?user=aghil&password=password1";
               String url = connectionString;
               Class.forName("com.mysql.jdbc.Driver");
               Connection con = DriverManager.getConnection(url);
               ResultSet rs;
               PreparedStatement pst = con.prepareStatement(selectQuery);
               rs = pst.executeQuery();
               while (rs.next()) {
                    String name = rs.getString(1);
     %>
     <html:option value="<%=name%>"><%=name%></html:option>
     <%
          }%>
     <%
          } catch (Exception e) {
               out.print(e);
          }
     %>
</html:select>

its ActionForm class contains

private String selectedop;

and its getter and setter methods.

problem is after submitting reloading jsp page, the value selected in "selectedop" change to its first value.

But I want it to as set as previous.
So I set its value in its Action class using its setter method in ActionForm class.
But it did not worked.
So how I can set value of html:select from Action class

Tags: Java, JSP, Struts