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在catch语块中增加TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
import org.springframework.transaction.interceptor.TransactionAspectSupport;
try {
} catch (Exception e) {
TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();// catch块中显示让事务回滚,保证数据完整性
e.printStackTrace();
}