日期:2014-05-19  浏览次数:21190 次

use interceptor to log informations (J2EE 6 利用interceptor 打Log)

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import javax.interceptor.AroundInvoke;

import javax.interceptor.Interceptor;

import javax.interceptor.InvocationContext;

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Here is the example :

? ? ? ? 1.Define the annotation for interceptor

//@Inheritedto specify that the annotation can

//be inherited from superclasses

@Inherited

@InterceptorBinding

@Retention(RetentionPolicy.RUNTIME)

@Target({TYPE, METHOD})

public @interface Logged {

}

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2. Define the interceptor

@Logged

@Interceptor

public class LoggedInterceptor implements Serializable {