public void find(Object... objs) throws IllegalArgumentException, IllegalAccessException, SQLException {
Class<?> clz = objs[0].getClass();
Field[] fields = clz.getDeclaredFields();
for (Field field : fields) {
ORMColumn oc = field.getAnnotation(ORMColumn.class);
if (oc != null && oc.physicalPkFld() && oc.autoIncrement()) {
// 找到最后一个自增id
QueryRunner qr = new QueryRunner();
Object identityVal = qr.query(conn, selectKey.getQuery(), new ScalarHandler<Object>());
Long identity = NumberUtils.parseNumber(identityVal.toString(), Long.class);