[英]rollback does not work with tomcat using JOTM
I was using oc4j for development of a weba application involving JSP, servlets and JDBC (dayabase: oracle 11gr2). 我使用oc4j来开发涉及JSP,Servlet和JDBC的Weba应用程序(dayabase:oracle 11gr2)。 Had used built in transaction manager and commits and rollbacks used to work fine.
已使用内置的事务管理器,并且提交和回滚正常工作。
However, due to licensing we are now supposed to move the code to a free server like tomcat. 但是,由于获得许可,我们现在应该将代码移至免费服务器,例如tomcat。 I have implemented JOTM as the transaction manager in tomcat following the steps in this post:
按照本文中的步骤,我已经在tomcat中将JOTM实现为事务管理器:
http://codepitbull.wordpress.com/2011/07/08/tomcat-7-with-full-jta/ http://codepitbull.wordpress.com/2011/07/08/tomcat-7-with-full-jta/
The following is the configuration in %CATALINA_HOME%/conf/context.xml 以下是%CATALINA_HOME%/ conf / context.xml中的配置
<Resource name="jdbc/ticketds"
auth="Container"
type="javax.sql.DataSource"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
validationQuery="SELECT 1"
maxActive="30"
minIdle="2"
maxWait="10000"
initialSize="10"
defaultAutoCommit="false"
username="xxxx"
password="xxxxx"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@//xxxxx.xxxx.com:iiii/xyz"/>
<Resource name="jdbc/taskds"
auth="Container"
type="javax.sql.DataSource"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
validationQuery="SELECT 1"
maxActive="30"
minIdle="2"
maxWait="10000"
initialSize="10"
defaultAutoCommit="false"
username="apps"
password="few1idna"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@//xxxxx.xxxx.com:iiii/xyz"/>
<Transaction factory="org.objectweb.jotm.UserTransactionFactory"
jotm.timeout="600"/>
The web.xml is configured to mention the datasource in resource-refs like so: 将web.xml配置为在资源引用中提及数据源,如下所示:
<resource-ref>
<description>Ticket Datasource configuration</description>
<res-ref-name>jdbc/ticketds</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<resource-ref>
<description>SR Datasource configuration</description>
<res-ref-name>jdbc/taskds</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
However, when i try to perform rollbacks, it does not help. 但是,当我尝试执行回滚时,它没有帮助。 Here is a sample test code for rollback that i am using for testing:
这是我用于测试的回滚的示例测试代码:
UserTransaction utx = DBUtil.getUserTransaction();
Connection conn = DBUtil.getConnection();
TicketMessageVO newTicket = null;
try {
utx.begin();
newTicket = new TicketDAO(conn).createTicket(ticket);
// testing only
if(1==1) throw new Exception("Testing transaction rollback");
utx.commit();
logger.log(Level.INFO, "Ticket created successfully: " + ticket.getMessageId());
} catch (Throwable e) {
utx.rollback();
logger.log(Level.SEVERE, "Error in creating ticket: ", e);
throw new Exception(e);
} finally {
DBUtil.closeResources(null, null, conn);
}
return newTicket;
The same bit of code used to work perfectly with oc4j. 与oc4j完美配合使用的相同代码。 Am i missing something in the configuration?
我在配置中缺少什么吗?
Thanks. 谢谢。
I recently run into the same issue and I solved it using JOTM's own datasource factory ( org.objectweb.jotm.datasource.DataSourceFactory
) instead of Tomcat's. 我最近遇到了同样的问题,我使用了JOTM自己的数据源工厂(
org.objectweb.jotm.datasource.DataSourceFactory
)而不是Tomcat来解决了。 This is how your context.xml should look like: 这是您的context.xml的样子:
<Resource name="jdbc/taskds"
auth="Container"
type="javax.sql.DataSource"
factory="org.objectweb.jotm.datasource.DataSourceFactory"
validationQuery="SELECT 1"
maxActive="30"
minIdle="2"
maxWait="10000"
initialSize="10"
defaultAutoCommit="false"
username="apps"
password="few1idna"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@//xxxxx.xxxx.com:iiii/xyz"/>
However, using JOTM this way causes Tomcat to hang during shutdown (maybe due to a non-daemon thread in Carol). 但是,以这种方式使用JOTM会导致Tomcat在关闭期间挂起(可能是由于Carol中的非守护线程)。
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