Populating selectItems with database values

Question

I'm looking for an example of how to populate a combo box using the selectItems tag with database records. I'd like to be able to populate the item value and item label. I am able to build an array to populate this way, but can not find a good database example. Could someone point me in the right direction?
Thanks

Answer 1

public class SQLView {
private SQLView() { } //Prevents instantiation
public class Field {
public static final String id = "id";
public static final String name = "name";
public class ProductCategory {
public static final String select =
"select id, name from ProductCategory order by name";
DataAccess.java
public DataAccess(String confEnvName, String dataSourceName) throws Exception {
try {
InitialContext ic = new InitialContext();
Context envCtx = (Context) ic.lookup(confEnvName);
DataSource ds = (DataSource)envCtx.lookup(dataSourceName);
name = confEnvName + '/' + dataSourceName;
con = ds.getConnection();
} catch (Exception ex) {
throw new Exception("Couldn't open connection to database: " +
dataSourceName + ' ' + ex.getMessage());
public ResultSet getResultSet(String statement) throws SQLException {
PreparedStatement st = con.prepareStatement(statement);
ResultSet rs = st.executeQuery();
return rs;
public List resultSetToSelectItems(String statement) throws SQLException {
List list = new ArrayList();
ResultSet rs = getResultSet(statement);
try {
while (rs.next()) {
list.add(new SelectItem(new Integer(rs.getInt(SQLView.Field.id)),
rs.getString(SQLView.Field.name)));
finally {
rs.close();
return list;
Catalog.java
public synchronized List getCategoryList() throws SQLException {
if (categoryList == null) {
categoryList = dataAccess.resultSetToSelectItems(SQLView.ProductCategory.select);
if (!categoryList.isEmpty()) {
categoryId = (Integer)((SelectItem)(categoryList.get(0))).getValue();
else {
categoryId = new Integer(0);
return categoryList;