springboot手动事务回滚的实现代码

@Autowired
  private PlatformTransactionManager platformTransactionManager;
  @Autowired
  private TransactionDefinition transactionDefinition;
  private Lock lock = new ReentrantLock();
  // todo 业务处理方法 数据存储异常 手动进行回滚
  public void saveMsg(String message) throws Exception {
    lock.lock();
    TransactionStatus transaction = platformTransactionManager.getTransaction(transactionDefinition);
    try {
    	//todo 具体业务，对数据库的操作 start
    	test1Service.save(test1);
    	test2Service.save(test2);
    	//end
    	
      platformTransactionManager.commit(transaction);
    } catch (Exception e) {
      platformTransactionManager.rollback(transaction);
      e.printStackTrace();
    } finally {
      lock.unlock();
    }
  }

@Autowired
  private static PlatformTransactionManager platformTransactionManager;
  @Autowired
  private static TransactionDefinition transactionDefinition;

  @Autowired
  public void init(PlatformTransactionManager platformTransactionManager,TransactionDefinition transactionDefinition
  ) {
    DriverAlfaServerHandler.platformTransactionManager = platformTransactionManager;
    DriverAlfaServerHandler.transactionDefinition = transactionDefinition;
  }