public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        DBConn conn = new DBConn();
        conn.getConn();
        conn.ListUser();
        conn.closeConn();
        
    }code]


DBConn.java
[code=Java]public void ListUser() {

        try {

            stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("select * from users");
            while (rs!=null && rs.next()) {
                System.out.print("<tr><td>姓名=" + rs.getString("userName")
                        + "</td>");
                System.out.print("<td>密码=" + rs.getString("userPwd")
                        + "</td></tr>");
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

public List ListUser() {

        try {
            List<Users> list=new ArrayList<List>();
            Users user=null;
            stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("select * from users");
            while (rs.next()) {
            user=new Users();
            user.setName(rs.getString("name"));
            user.setXXX(rs.getString("XXX"));
              .
              .
             list.add(user)；
                           }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
         return list;
    }