Question

{
  "extends": "./tsconfig.es5.json",
  "compilerOptions": {
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "outDir": "../out-tsc/spec",
    "module": "commonjs",
    "types": [
      "jasmine",
      "node"
    ]
  },
  "files": [
    "test.ts",
    "polyfills.ts"
  ],
  "include": [
    "**/*.spec.ts",
    "**/*.d.ts"
  ]
}

如您所见，我想为发票设置所有更正，然后从数据库中重新加载它们以生成XLSX文件。

问题是@Transactional public long generateInvoice(...) { final InvoiceEntity invoice = new InvoiceEntity(...); final InvoiceEntity dbInvoice = invoiceService.save(invoice); List<CorrectionEntity> corrections = correctionService.findAllByVendor(...); corrections.forEach(correction -> correction.setInvoice(dbInvoice)); correctionService.saveAll(corrections); InvoiceEntity finalDBInvoice = invoiceService.getInvoiceById(dbInvoice.getId()).orElseThrow(IllegalStateException::new); documentService.generateExcel(finalDBInvoice); return dbInvoice.getId(); }中的数据不可用，因为根据我在日志中注意到的，finalDBInvoice和INSERT在结束时执行方法，可能是因为UPDATE。当我要生成Excel文件时，@Transactional字段为corrections。

从我的角度来看，我期望它能够正常工作。使用JDBC之类的东西会起作用，因为每个语句将在正确的时间在单个事务中执行。

null

Answer 1

您是对的。方法末尾的休眠提交事务。您有两个选择： 1.分别保存和读取数据以两种方法生成excel，然后依次调用它们。 2.插入或保存后使用冲洗方法。像这样：

//correct
@Transactional
public long generateInvoice(...) {
    final InvoiceEntity invoice = new InvoiceEntity(...);

    final InvoiceEntity dbInvoice = invoiceService.save(invoice);
    invoiceService.flush();

    List<CorrectionEntity> corrections = correctionService.findAllByVendor(...);
    corrections.forEach(correction -> correction.setInvoice(dbInvoice));
    correctionService.saveAll(corrections);

    InvoiceEntity finalDBInvoice = invoiceService.getInvoiceById(dbInvoice.getId()).orElseThrow(IllegalStateException::new);

    documentService.generateExcel(finalDBInvoice);

    return dbInvoice.getId();

}

Hibernate在执行时未运行插入和更新

1 个答案: