fixed Oracle SQL报错 #ORA-01460: 转换请求无法实施或不合理

/**
	 * 获取信息模板
	 * @return
	 */
	private List<ApprSmsItemSettingVo> getSettingTemplate(String itemCode)
			throws SQLException {
		PreparedStatement pst = null;
		StringBuffer sb = new StringBuffer();
			sb.append("select a.itemCode, ");
				 sb.append("a.type, ");
				 sb.append("b.warn_days, ");
				 sb.append("c.proj_name, ");
				 sb.append("c.cust_name, ");
				 sb.append("a.is_send ");
				 sb.append("from t_item_setting a ");
				 sb.append("left join t_itm_define b on b.itemCode= a.itemCode ");
						 sb.append("b.itemCode where a.is_send in (1) and a.itemCode in (?) ");
		pst = this.connection.prepareStatement(sb.toString());
	
		pst.setString(1, itemCode);
		ResultSet rs = pst.executeQuery();
		List<ItemSettingVo> list = new ArrayList<ItemSettingVo>();
		while(rs.next()){
			ItemSettingVo vo = new ItemSettingVo();
			vo.setItemCode(rs.getString("itemCode"));
			vo.setType(rs.getLong("type"));
			vo.setSmsTemplet(rs.getString("sms_templet"));
			vo.setWarnDays(rs.getLong("warn_days"));
			vo.setIsSend(rs.getLong("is_send"));
			list.add(vo);
		}
		rs.close();
		pst.close();
		return list;
	}

/**
	 * 获取信息模板
	 * fixed #ORA-01460: 转换请求无法实施或不合理
	 * ps：主键换成uuid之后，原来的方法会出现ORA-01460出错，sql太长导致
	 * @param itemCode
	 * @return
	 * @throws Exception
	 */
	public List<ItemSettingVo> getItemSettingVos(String itemCode)throws Exception{
		List<ItemSettingVo> templateList = new ArrayList<ItemSettingVo>();
		StringBuffer itmStr = new StringBuffer();
		//XXX fixed Exception#ORA-01460: 转换请求无法实施或不合理 modify on 20190109
		//暂时用分组遍历再拼装为一个List的方法，原来的方法放在getSettingTemplate
		if(StringUtils.isNotBlank(itemCode)){
			//itemCode = itemCode.replace("(", "").replace(")", "");
			String[] itemCodeArr = StringUtils.split(itemCode,",");
			int len = itemCodeArr.length;
			if (len < 100) {//没超过100个事项编码的情况，按照原来的方法
				templateList = this.getSettingTemplate(itemCode);
			} else {//超过100个事项编码的情况，分组遍历，然后再拼装list，避免Exception#ORA-01460: 转换请求无法实施或不合理
				List<Collection<String>> itms =CollectionUtils.splitCollection(Arrays.asList(itemCodeArr), 100);
				for (Collection<String> colle: itms) {
					for (String str : colle) {
						itmStr.append("'").append(str).append("'").append(",");
					}
					itemCode = itmStr.toString().substring(0, itmStr.toString().length()-1);
					templateList.addAll(this.getSmsSettingTemplate(itemCode));
					itmStr.delete(0, itmStr.length());
				}
				System.out.println("get apprTemplateList：{}"+templateList.size());
			}
		}
		
		return templateList;
	}

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class CollectionUtils {
	public static List<Collection<String>> splitCollection(Collection<String>values , int size) {
		List<Collection<String>> result = new ArrayList<Collection<String>>();
		if(values.size() <= size ){
			result.add(values);
		}else{
				int count =0;
				Collection<String> subCollection= null;
				for(String s:c){
					if(subCollection == null){
						subColletion = new ArrayList<String>();
						result.add(subColletion);
					}
					subCollection.add(s);
					count++;
					if(count == size){
						count =0;
						subCollectiion = null;
					}
				}
		}
	}
}