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注意:Action如果实现了Action接口,或者继承了ActionSupport类,则要在aop:config标签添加 proxy-target-class="true",否者会抛异常。
新建文件:DebugLogger.java:
import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
public class DebugLogger{
Logger logger = Logger.getLogger(DebugLogger.class);
StringBuffer buffer = new StringBuffer();
public void log(JoinPoint joinPoint) {
Object[] args = joinPoint.getArgs();
buffer.delete(0, buffer.length()).append("enter function: ").append(joinPoint.getSignature()).append(", parameters: ");
if (args != null) {
for (Object obj : args) {
buffer.append(obj);
}
}
if (logger.isDebugEnabled())
{
logger.debug(buffer.toString());
}
}
public void logWithReturn(JoinPoint joinPoint, Object returnObj) {
buffer.delete(0, buffer.length()).append("exit function:").append(joinPoint.getSignature()).append(", return value:").append(returnObj);
if (logger.isDebugEnabled())
{
logger.debug(buffer.toString());
}
}
}
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更改applicationContext.xml文件:
<bean id="debugLogger" class="com.shenzhen.management.util.log.DebugLogger"></bean>
<aop:config proxy-target-class="true">
<aop:pointcut id="logPointcut" expression="execution(* com.shenzhen.management.action.*.*(..))
or execution(* com.shenzhen.management.service.*.*(..))
or execution(* com.shenzhen.management.dao.*.*(..))"/>
<aop:aspect id="logAspect" ref="debugLogger">
<aop:before method="log" pointcut-ref="logPointcut"/>
<aop:after-returning method="logWithReturn" returning="returnObj" pointcut-ref="logPointcut"/>
</aop:aspect>
</aop:config>
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