ulwx commented on issue #24735:
URL:
https://github.com/apache/shardingsphere/issues/24735#issuecomment-1482207313
@Transactional(propagation = Propagation.REQUIRED)
@GlobalTransactional
public void updateUseAkDs() {
TransactionTypeHolder.set(TransactionType.BASE);
addressDao.updateMdForMaster2(1, "123");
try {
addressDao.updateMdForMaster1(2, "abc");
} catch (Exception ex) {
LOGGER.debug(ex + "");
}
}
@GlobalTransactional is an annotation from seata, indicating that this is a
global transaction. When TransactionTypeHolder. set (TransactionType. BASE) is
used in a method（using the @ GlobalTransactional annotation）, an error will be
reported. The reason is that sharding-jdbc determines in the code that if it is
in a global transaction, SeataATShardingSphereTransactionManager#begin() is not
executed, finally, in the code ”SeataTransactionHolder. get(). commit()” in
the SeataATShardingSphereTransactionManager#commit() method,
SeataTransactionHolder. get()=null, resulting in a null exception!
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