MessageFormat 在sql中批量操作的妙用

@SuppressWarnings("unchecked")
public String addBatchRecord(Map<String, Object> parameters)
{
StringBuffer sb = new StringBuffer();
List<RewardDetail> list = (List<RewardDetail>) parameters.get("list");
sb.append("insert into reward_detail (id, userId, rewardNo, activityId, rewardId,receiveDate, overdueDate,useDate, cash,earningsDate, rewardStatus,investorId, orderNo,orderDate, serialNo,loanId, remark)");
sb.append("values");
MessageFormat messageFormat = new MessageFormat(
"(null,#'{'list[{0}].userId},#'{'list[{0}].rewardNo},#'{'list[{0}].activityId},#'{'list[{0}].rewardId},#'{'list[{0}].receiveDate},#'{'list[{0}].overdueDate},#'{'list[{0}].useDate},#'{'list[{0}].cash},#'{'list[{0}].earningsDate},#'{'list[{0}].rewardStatus},#'{'list[{0}].investorId},#'{'list[{0}].orderNo},#'{'list[{0}].orderDate},#'{'list[{0}].serialNo},#'{'list[{0}].loanId},#'{'list[{0}].remark})");
for (int i = 0; i < list.size(); i++)
{
sb.append(messageFormat.format(new Object[] { i + "" }));
if (i < list.size() - 1)
{
sb.append(",");
}
}
return sb.toString();
}