Cannot display a collection of beans in JSTL

I have this Bean

public class Bank {
    private String id;
    private String bankname;

    public void setId(String id){
        this.id = id;
    }

    public void setBankname(String name){
        this.bankname = name;
    }

    public String getId(){
        return id;
    }

    public String getBankname(){
        return bankname;
    }

And also A Servlet that receiving an ArrayList taken from MySQL. This arraylist is using that Bean I mentioned earlier.

response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
int manyRow = 15;
ArrayList<Bank> bankList = new MysqlUtil().getBankTableData(15);

HttpSession sess = request.getSession(true);
try {
    sess.setAttribute("susunan", bankList);
    sess.setAttribute("panjang", bankList.size());
    request.getRequestDispatcher("table/bankTable.jsp").forward(request, response);
    return;
} finally {
     out.close();
}

And this is my JSP accessing them by iterating it:

<table width="100%" border="0">
    <tr>
        <th>ID</th>
        <th>Name</th>
    </tr>
    <c:forEach items="${susunan}" var="bankData">
        <tr>
 开发者_C百科           <td><c:out value="${susunan.id}"></c:out></td>
            <td><c:out value="${susunan.bankname}"></c:out></td>
        </tr>
    </c:forEach>
</table>

But the result I got is

ERROR for input string : "id" and for input string : "bankname"

Why does the JSP seem to not recognize my bean?

---

   <c:forEach items="${susunan}" var="bankData">
    <tr>
        <td><c:out value="${bankData.id}"></c:out></td>
        <td><c:out value="${bankData.bankname}"></c:out></td>
    </tr>
</c:forEach>

The variable named susanan is the entire list; it does not have an id. The variable named bankData is the individual beans.