我需要遍历 ScrollableResults,这实际上是在 cron 上执行的,它读取大约 100000 条记录的表(Informix DB)的信息并将一些信息保存在另一个 DB(Oracle 11g)的另一个表上,但过去 30 分钟它抛出两个例外;首先是“清除 maxRows/queryTimeout java.sql.SQLException:'Statement' 已经关闭的异常”,然后是“SQL 错误:-79878,SQLState:IX000 ResultSet 未打开,不允许操作'next'。验证自动提交已关闭”。
Jboss : jboss-as-7.1.1 setting up default-timeout
<subsystem xmlns="urn:jboss:domain:transactions:1.1">
<core-environment>
<process-id>
<uuid/>
</process-id>
</core-environment>
<recovery-environment socket-binding="txn-recovery-environment" status-socket-binding="txn-status-manager"/>
<coordinator-environment default-timeout="10800"/>
Java JDK : 1.6
Hibernate 3.6.7
Spring 3.0.7 setting up defaultTimeout
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="defaultTimeout" value="10800" />
<property name="allowCustomIsolationLevels" value="true" />
</bean>
public void getArticulos(Consumer<Articulos> consumer) throws SQLException {
StatelessSession session = null;
try {
session = getSessionFactory().openStatelessSession();
session.connection().setTransactionIsolation(Connection.TRANSACTION_READ_UNCOMMITTED);
Criteria criteria = session.createCriteria(getPersistentClass());
ScrollableResults results = criteria.scroll(ScrollMode.FORWARD_ONLY);
int cantidad = 0;
while (results.next()) {
Articulo item = (Articulo) results.get()[0];
amount ++;
LOG.debug(amount + " articulos");
consumer.accept(item, cantidad);
}
consumer.finish();
} finally {
if (session != null) {
try {
session.close();
} catch (Exception e) {
LOG.error("Unexpecting Error",
e);
}
}
}
}
我希望它能够毫无问题地读取和处理所有行