spring入门实例-aop
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spring入门实例-aop?
使用interceptor模式实现advice
实例：
配置databaseaop.xml
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<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><description>database aop</description><bean id="logInterceptor" /></property><property name="interceptorNames"><list><value>logInterceptor</value><value>OracleInterceptor</value></list></property></bean></beans>
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interactor的监控接口：
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public interface IHello{public String hello(String name);public void morning(String name);}?
?接口的实现类：
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public class DataBaseSpeaker implements IHello{@Overridepublic String hello(String name){System.out.println("mysql,"+name);return name;}@Overridepublic void morning(String name){System.out.println("oracle,"+name);}public static void main(String[] args){ApplicationContext context = new ClassPathXmlApplicationContext("com/myspring/aop/databaseaop.xml");IHello helloProxy = (IHello) context.getBean("dbproxy");helloProxy.hello("227");helloProxy.morning("momor");}}?
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两个interceptor
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public class LogInterceptor implements MethodInterceptor{private Logger logger = Logger.getLogger(this.getClass().getName());@Overridepublic Object invoke(MethodInvocation methodInvocation) throws Throwable{logger.log(Level.INFO, "method stats...");System.out.println("ffffffffffffffffff");try{Object result = methodInvocation.proceed();System.out.println(result);return result;}finally{logger.log(Level.INFO, "method ends.."+methodInvocation.getMethod());System.out.println("eeeeeeeeeeeeeeeeeee");}}}?public class OracleInterceptor implements MethodInterceptor
{@Overridepublic Object invoke(MethodInvocation methodInvocation) throws Throwable{// TODO Auto-generated method stubSystem.out.println("qqqqqqqqqqqqMethodInvocation");Object obj = methodInvocation.proceed();System.out.println("qqqqqqqqqqqqMethodInvocation");return obj;}}?public class OracleInterceptor implements MethodInterceptor{@Overridepublic Object invoke(MethodInvocation methodInvocation) throws Throwable{// TODO Auto-generated method stubSystem.out.println("qqqqqqqqqqqqMethodInvocation");Object obj = methodInvocation.proceed();System.out.println("qqqqqqqqqqqqMethodInvocation");return obj;}}?测试main：
public static void main(String[] args){ApplicationContext context = new ClassPathXmlApplicationContext("com/myspring/aop/databaseaop.xml");IHello helloProxy = (IHello) context.getBean("dbproxy");helloProxy.hello("227");helloProxy.morning("momor");}??
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