org.springframework.dao.InvalidDataAccessApiUsageException

Question

我正在使用Spring MVC + Hibernate

通用方法

public <T, E> void saveOrUpdate(T entity, List<E> list) throws DataAccessException {

    Session session = sessionFactory.getCurrentSession();
    session.saveOrUpdate(entity);
    for(E getlist : list){
    session.saveOrUpdate(getlist);
    }
}

（以下）控制器工作正常

@Controller
public class FinGeneralJournalController {

    protected static Logger log = Logger
        .getLogger(FinGeneralJournalController.class);

    @Resource(name = "PersistenceTemplate")
    private PersistenceTemplate pt;

    @RequestMapping(value = "/AddFinGeneralJournal", method = RequestMethod.POST)
    public @ResponseBody
    JsonResponseStatus addGeneralJournalEntry(
        @RequestParam(value="description", required=true) String description,
        @RequestParam(value="trxDate", required=true) Date trxDate,
        @RequestParam(value="sourceDocumentId", required=true) long sourceDocumentId,
        @RequestParam(value="currencyId", required=true) long currencyId,
        @RequestParam(value="batchId", required=true) long batchId,
        @RequestParam(value="tableList", required=true) String tableList, HttpSession session ) {

        Date sysdate = null;
        JsonResponseStatus response = null;
        List<FinGeneralJournalEntryModel> list=null;
        FinGeneralJournalEntryModel generalJournalEntryModel= null;
        try {
            long userId=Long.parseLong(session.getAttribute("userId").toString());
            String userIp=session.getAttribute("userIp").toString();

            sysdate = new Date();
            response = new JsonResponseStatus();

            FinGeneralJournalModel generalJournalModel  = new FinGeneralJournalModel(description,
                trxDate, userId, userIp, sysdate, 0);

            generalJournalModel.setFko_gj_batch(new FinBatchModel(batchId));
            generalJournalModel.setFko_gj_srcdoc(new FinSourceDocumentModel(sourceDocumentId));
            generalJournalModel.setFko_gj_curr(new GenCurrencyModel(currencyId));

            list= new ArrayList<FinGeneralJournalEntryModel>();

            String []getDistributionlist=tableList.split(",");

            for (int i=0; i<getDistributionlist.length; i+=6){

                generalJournalEntryModel= new FinGeneralJournalEntryModel(Long.parseLong(getDistributionlist[i+3].toString()),
                        Long.parseLong(getDistributionlist[i+4].toString()),
                        currencyId, 86.5, userId, userIp, sysdate, 0);

                generalJournalEntryModel.setFko_gje_gj(generalJournalModel);
                generalJournalEntryModel.setFko_gje_coam(new FinCOAMaintenanceModel(Long.parseLong(getDistributionlist[i].toString())));

                list.add(generalJournalEntryModel);
            }

            pt.saveOrUpdate(generalJournalModel,list);

            response.setStatus("Success");
        } catch (Exception ex) {
            log.error("Exception.." + ex);
            response.setStatus("Fail");
        }
        return response;
    }
}

另一个跟随控制器同样如上，但给出例外

@Controller
public class ProPurchaseOrderController {
    protected static Logger log = Logger
        .getLogger(ProPurchaseOrderController.class);

    @Resource(name = "PersistenceTemplate")
    private PersistenceTemplate pt;

    @RequestMapping(value = "/AddProPurchaseOrder", method = RequestMethod.POST)
    public @ResponseBody
    JsonResponseStatus AddProPurchaseOrder(
        @RequestParam(value="poDesc", required=true) String poDesc,
        @RequestParam(value="poTrxDate", required=true) Date poTrxDate,
        @RequestParam(value="supplierId", required=true) long supplierId,
        @RequestParam(value="currencyId", required=true) long currencyId,
        @RequestParam(value="batchId", required=true) long batchId,
        @RequestParam(value="poSubTotal", required=true) double poSubTotal,
        @RequestParam(value="poDiscount", required=true) double poDiscount,
        @RequestParam(value="poFreight", required=true) double poFreight,
        @RequestParam(value="poTax", required=true) double poTax,
        @RequestParam(value="poMisc", required=true) double poMisc,
        @RequestParam(value="poGTotal", required=true) double poGTotal,
        @RequestParam(value="tableList", required=true) String tableList, HttpSession session ) {

        Date sysdate = null;
        JsonResponseStatus response = null;
        ProPurchaseOrderModel purchaseOrder=null;
        ProPurchaseOrderEntryModel purchaseOrderEntry=null;
        List<ProPurchaseOrderEntryModel> list=null;

        try {
            sysdate = new Date();
            response = new JsonResponseStatus();

            long userId=Long.parseLong(session.getAttribute("userId").toString());
            String userIp=session.getAttribute("userIp").toString();

            purchaseOrder= new ProPurchaseOrderModel(poDesc, poTrxDate, poSubTotal, poFreight, poTax, poMisc, poDiscount,
                0, 0, userId, userIp, sysdate, 0);

            purchaseOrder.setFko_po_batch(new ProBatchModel(batchId));
            purchaseOrder.setFko_po_currency(new GenCurrencyModel(currencyId));
            purchaseOrder.setFko_po_supp(new ProSupplierModel(supplierId));

            list= new ArrayList<ProPurchaseOrderEntryModel>();

            String []getItemlist=tableList.split(",");

            for (int i=0; i<getItemlist.length; i+=11){

                double actualQuantity=Double.parseDouble(getItemlist[i+5].toString());
                double fraction=Double.parseDouble(getItemlist[i+6].toString());
                double baseQuantity=Double.parseDouble(getItemlist[i+7].toString());
                double cost=Double.parseDouble(getItemlist[i+8].toString());
                double total=Double.parseDouble(getItemlist[i+9].toString());

                purchaseOrderEntry= new ProPurchaseOrderEntryModel(actualQuantity, fraction, baseQuantity, cost, total,
                    0, 0, userId, userIp, sysdate, 0);

                purchaseOrderEntry.setFko_poe_uome(new InvUOMExtendedModel(Long.parseLong(getItemlist[i+4].toString())));
                purchaseOrderEntry.setFko_poe_item(new InvItemModel(Long.parseLong(getItemlist[i].toString())));
                purchaseOrderEntry.setFko_poe_po(purchaseOrder);

                list.add(purchaseOrderEntry);
            }

            pt.saveOrUpdate(purchaseOrderEntry,list);
            response.setStatus("Success");
        } catch (Exception ex) {
            log.error("Exception.." + ex);
            response.setStatus("Fail");
        }
        return response;
    }
}

例外是

Exception..org.springframework.dao.InvalidDataAccessApiUsageException：object引用未保存的瞬态实例 - 在刷新之前保存瞬态实例：com.soft.erp.pro.model.ProPurchaseOrderModel;嵌套异常是org.hibernate.TransientObjectException：object引用未保存的瞬态实例 - 在刷新之前保存瞬态实例

Answer 1

正如错误消息所述：您的ProPurchaseOrderModel引用了另一个实体（很可能是InvItemModel和/或InvUOMExtendedModel），它本身尚未保存。您可以先保存这些实体，或者（可能更好）修复映射，以便通过声明持久化的级联来自动保存这些引用的对象。

如果您正在使用注释，这可以通过例如与多对一关系完成

    @ManyToOne(cascade = CascadeType.PERSIST)

甚至

    @ManyToOne(cascade = CascadeType.ALL)