NorollBack，因为它不总是处理未检查的异常（不是重复的）

Question

我见过很多类似的问题，但它们通常与我的问题无关。

@Override //class implements interface
//can also add "rollbackFor = OutOfMemoryError.class" here, to no avail
@Transactional(noRollbackFor = IllegalArgumentException.class)
public ReportTemplate getByCode(final String code)
  //throws IllegalArgumentException - see question text
{
    if(code == null) {
        throw new IllegalArgumentException("ss");
    }
}

嗯，我只能找到一个官方澄清，它说“最强匹配规则获胜”--但这似乎不像我的情况那样普遍适用。此外，出于某种原因，它们过于特定：它们说no-rollback-for=“InstrumentNotFoundException”字面意思是，“InstrumentNotFoundException以外的任何异常”都将被回滚（但是InstrumentNotFoundException的后代呢？）不管怎样，它已经非常过时了:2.5.x，更新的文档只是说“rollbackfor列出了要回滚的异常，而noRollbackFor列出了不能回滚的异常”，我会说，这是一种非常矛盾的方式。

更有趣的是，如果我在上面的“throws”子句中指定了IllegalArgumentException，那么上面的代码将停止回滚。是的，我没有必要，因为它是不受控制的--但如果我这样做了，noRollbackFor终于似乎注意到了它，并表现得很好！有人知道手册上说这应该发生什么吗？也可能是虫子？

这里更新的是spring事务日志（在我的实际代码YargreportTemplateDAO$TemplateNotFoundException中，到处都是，而不是IllegalArgumentException）

[qtp22373939-44] TRACE org.springframework.transaction.interceptor.TransactionInterceptor - Completing transaction for [ru.it.p321.dao.YargReportTemplateDaoImpl.getByCode] after exception: ru.it.p321.dao.YargReportTemplateDaoImpl$1: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION
[pool-28-thread-1] DEBUG org.springframework.transaction.jta.JtaTransactionManager - Initiating transaction commit
[qtp22373939-44] TRACE org.springframework.transaction.interceptor.RuleBasedTransactionAttribute - Applying rules to determine whether transaction should rollback on ru.it.p321.dao.YargReportTemplateDaoImpl$1: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION
[qtp22373939-44] TRACE org.springframework.transaction.interceptor.RuleBasedTransactionAttribute - Winning rollback rule is: NoRollbackRuleAttribute with pattern [ru.it.p321.dao.YargReportTemplateDao$TemplateNotFoundException]

2）没有“扔”

[qtp21176461-48] TRACE org.springframework.transaction.interceptor.TransactionInterceptor - Completing transaction for [ru.it.p321.dao.YargReportTemplateDaoImpl.getByCode] after exception: org.springframework.dao.InvalidDataAccessApiUsageException: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION; nested exception is ru.it.p321.dao.YargReportTemplateDaoImpl$1: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION
[qtp21176461-48] TRACE org.springframework.transaction.interceptor.RuleBasedTransactionAttribute - Applying rules to determine whether transaction should rollback on org.springframework.dao.InvalidDataAccessApiUsageException: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION; nested exception is ru.it.p321.dao.YargReportTemplateDaoImpl$1: Yarg template was not found for given code: ITORG_REJECT_NOTIFICATION
[qtp21176461-48] TRACE org.springframework.transaction.interceptor.RuleBasedTransactionAttribute - Winning rollback rule is: null
[qtp21176461-48] TRACE org.springframework.transaction.interceptor.RuleBasedTransactionAttribute - No relevant rollback rule found: applying default rules

Answer 1

您看到的行为与事务处理无关，但与异常转换有关。默认情况下，当用@repository注释一个类时，Spring将注册一个PersistenceExceptionTranslationInterceptor，它将异常转换为SpringDataAccessException的异常之一。默认情况下，它翻译所有异常，除非在throws子句中声明了引发的异常。

这个异常转换发生在TransactionInterceptor之前，这样就不会抛出IllegalArgumentException，因为它已经被转换成了其他内容。