等了1个半月后,没有人解决我的问题,我终于抽出时间自己解决了。实际上,它并不像我想象的那么难。也许这就是为什么我找不到任何好的例子的原因。
以下测试将展示用法:
配置:(省略SessionFactory和TransactionManager等)
<object name="ExceptionHandlingAdvice" type="Spring.Aspects.RetryAdvice, Spring.Aop">
<property name="retryExpression" value="on exception name DeadlockLoserDataAccessException retry 3x delay 1s"/>
</object>
<object id="TxProxyConfigurationTemplate" abstract="true" type="Spring.Transaction.Interceptor.TransactionProxyFactoryObject, Spring.Data">
<property name="PlatformTransactionManager" ref="HibernateTransactionManager"/>
<property name="TransactionAttributes">
<name-values>
<add key="ThrowDeadLock*" value="PROPAGATION_REQUIRED"/>
</name-values>
</property>
</object>
<object id="MockDaoTxPFO" parent="TxProxyConfigurationTemplate">
<property name="Target" ref="MockDao"/>
</object>
<object id="MockDao" type="Spring.Aop.Framework.ProxyFactoryObject, Spring.Aop" >
<property name="proxyInterfaces" value="RetryAdvice.IDaoMock"/>
<property name="target" ref="MockDaoImpl"/>
<property name="interceptorNames">
<list>
<value>ExceptionHandlingAdvice</value>
</list>
</property>
</object>
<object id="MockDaoImpl" type="RetryAdvice.DaoMock, RetryAdvice">
<constructor-arg name="maxExceptionCount" value="2" />
</object>
模拟的Dao:此DAO将抛出2次DeadLockLooserExceptions然后执行。
public interface IDaoMock
{
void ThrowDeadLock();
int MethodCallCount { get; }
}
[Repository]
public class DaoMock : IDaoMock
{
private int maxExceptionCount;
public int MethodCallCount { get; private set; }
public DaoMock(int maxExceptionCount)
{
this.maxExceptionCount = maxExceptionCount;
}
public void ThrowDeadLock()
{
MethodCallCount++;
if (MethodCallCount <= maxExceptionCount)
{
throw new DeadlockLoserDataAccessException("FAKE", new HibernateException("This is a fake Exception.", null));
}
}
测试:
[Test]
public void RetryAdviceTest()
{
IDaoMock mockDao = (IDaoMock)this.appContext.GetObject("MockDaoTxPFO");
mockDao.ThrowDeadLock();
Assert.That(mockDao.MethodCallCount, Is.EqualTo(3));
}
欢迎任何提示或意见。