Spring 启动 @Transaction 不回滚 RuntimeException

Question

我有一个 spring 引导应用程序，它使用 spring-boot-starter-jdbc、Java 8 和 MySQL with InnoD。即使我这样做，应用程序也不会回滚运行时异常：

throw new RuntimeException("Rolling back");

我正在这样配置我的交易：

@Transactional(propagation = Propagation.REQUIRED, readOnly = false)

我正在使用 Spring 引导执行器，我可以在 Hal 浏览器中看到它：

"DataSourceTransactionManagerAutoConfiguration": [
  {
    "condition": "OnClassCondition",
    "message": "@ConditionalOnClass found required classes 'org.springframework.jdbc.core.JdbcTemplate', 'org.springframework.transaction.PlatformTransactionManager'"
  }
],
"DataSourceTransactionManagerAutoConfiguration.DataSourceTransactionManagerConfiguration": [
  {
    "condition": "OnBeanCondition",
    "message": "@ConditionalOnSingleCandidate (types: javax.sql.DataSource; SearchStrategy: all) found a primary bean from beans 'psmDataSource', 'dataSource'"
  }
],
"DataSourceTransactionManagerAutoConfiguration.DataSourceTransactionManagerConfiguration#transactionManager": [
  {
    "condition": "OnBeanCondition",
    "message": "@ConditionalOnMissingBean (types: org.springframework.transaction.PlatformTransactionManager; SearchStrategy: all) did not find any beans"
  }
],
"DataSourceTransactionManagerAutoConfiguration.TransactionManagementConfiguration": [
  {
    "condition": "OnBeanCondition",
    "message": "@ConditionalOnMissingBean (types: org.springframework.transaction.annotation.AbstractTransactionManagementConfiguration; SearchStrategy: all) did not find any beans"
  }
],

我假设这意味着事务管理器已成功配置，所以我不确定为什么事务没有被滚动 back.Is

有什么想法吗？

DAO 接口：

public interface IContestService {
    @Transactional(propagation = Propagation.REQUIRED, readOnly = false)    
    ContestDTO create(final ElectionEventDTO electionEvent, final ElectionDTO election, final ContestDTO contest, final PollingPlaceDTO pollingPlace, final List<CandidateDTO> candidates);
}

DAO 实现：

@Override
public ContestDTO create(final ElectionEventDTO electionEvent, final ElectionDTO election, final ContestDTO contest, final PollingPlaceDTO pollingPlace, final List<CandidateDTO> candidates) {

    if(electionEvent.getId() == null) {
        getElectionEventService().save(electionEvent);
    }

    if(election.getId() == null) {
        election.setElectionEvent(electionEvent);
        getElectionService().save(election);
    }

    if(election != null) {
        throw new RuntimeException("Rolling back");
    }
    contest.setElection(election);
    getContestDAO().save(contest);

    getCandidateService().save(candidates);

    /**
     * Return the contest
     */
    return contest;
}

application.properties:

logging.file=cm-web.log
logging.level.org.springframework.web=DEBUG

countdb.datasource.url=jdbc:mysql://localhost/countdb
countdb.datasource.username=root
countdb.datasource.password=pass123
countdb.datasource.driver-class-name=com.mysql.jdbc.Driver

psm.datasource.url=jdbc:mysql://localhost/psm
psm.datasource.username=root
psm.datasource.password=password
psm.datasource.driver-class-name=com.mysql.jdbc.Driver

Answer 1

你的 @Transactional 注释在一个接口上（这可以说是个坏主意，你为什么要在你的合同中显示这种特定于实现的细节？）。 Spring Boot 默认使用 CGLIB 代理，所以据我所知，您根本没有任何事务。

您可以在 @SpringBootApplication 上添加 @EnableTransactionManagement(proxyTargetClass=false) 以确认这是问题的根本原因。

Answer 2

所以问题是@Transactional 注释在接口上。在界面上放置 @Transactional 注释是我喜欢做的事情，我已经做了一段时间，但是因为这是一个 Spring 启动应用程序，所以它不起作用。感谢您为我指明正确的方向。

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