Admin: 1 версия

2010-06-01T06:16:59Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:44Z

Новая страница

== Spring Aspect Logging ==



<source lang="java">
File: IBusinessLogic.java

public interface IBusinessLogic
{
public void foo();

public void bar() throws BusinessLogicException;
}

File: LoggingThrowsAdvice.java
import org.springframework.aop.ThrowsAdvice;
import java.lang.reflect.Method;
public class LoggingThrowsAdvice implements ThrowsAdvice
{
public void afterThrowing(Method method, Object[] args, Object target, Throwable subclass)
{
System.out.println("Logging that a " + subclass + "Exception was thrown.");
}
}

File: MainApplication.java

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
public class MainApplication
{
public static void main(String [] args)
{
// Read the configuration file
ApplicationContext ctx
= new FileSystemXmlApplicationContext("build/springconfig.xml");
//Instantiate an object
IBusinessLogic testObject = (IBusinessLogic) ctx.getBean("businesslogicbean");
//Execute the public methods of the bean
testObject.foo();

try
{
testObject.bar();
}
catch(BusinessLogicException ble)
{
System.out.println("Caught BusinessLogicException");
}
}
}

File: springconfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>

<bean id="businesslogicbean"
class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="proxyInterfaces">
<value>IBusinessLogic</value>
</property>
<property name="target">
<ref local="beanTarget"/>
</property>
<property name="interceptorNames">
<list>
<value>tracingBeforeAdvisor</value>
<value>tracingAfterAdvisor</value>
<value>loggingThrowsAdvisor</value>
</list>
</property>
</bean>

<bean id="beanTarget"
class="BusinessLogic"/>

<bean id="tracingBeforeAdvisor"
class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
<property name="advice">
<ref local="theTracingBeforeAdvice"/>
</property>
<property name="pattern">
<value>.*</value>
</property>
</bean>


<bean id="tracingAfterAdvisor"
class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
<property name="advice">
<ref local="theTracingAfterAdvice"/>
</property>
<property name="pattern">
<value>.*</value>
</property>
</bean>


<bean id="loggingThrowsAdvisor"
class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
<property name="advice">
<ref local="theLoggingThrowsAdvice"/>
</property>
<property name="pattern">
<value>.*</value>
</property>
</bean>

<bean id="theTracingBeforeAdvice"
class="TracingBeforeAdvice"/>
<bean id="theTracingAfterAdvice"
class="TracingAfterAdvice"/>
<bean id="theLoggingThrowsAdvice"
class="LoggingThrowsAdvice"/>
</beans>

File: TracingAfterAdvice.java
import java.lang.reflect.Method;
import org.springframework.aop.AfterReturningAdvice;
public class TracingAfterAdvice implements AfterReturningAdvice
{
public void afterReturning(Object object, Method m, Object[] args, Object target) throws Throwable
{
System.out.println("Hello world! (by " + this.getClass().getName() + ")");
}
}

File: TracingBeforeAdvice.java
import java.lang.reflect.Method;
import org.springframework.aop.MethodBeforeAdvice;
public class TracingBeforeAdvice implements MethodBeforeAdvice
{
public void before(Method m, Object[] args, Object target) throws Throwable
{
System.out.println("Hello world! (by " + this.getClass().getName() + ")");
}
}

File: BusinessLogic.java

public class BusinessLogic implements IBusinessLogic
{
public void foo()
{
System.out.println("Inside BusinessLogic.foo()");
}

public void bar() throws BusinessLogicException
{
System.out.println("Inside BusinessLogic.bar()");
throw new BusinessLogicException();
}
}

File: BusinessLogicException.java

public class BusinessLogicException extends Exception
{
}

</source>

← Предыдущая	Версия 06:16, 1 июня 2010
(нет различий)

Java/Spring/Log - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010