ITCAST视频-Spring学习笔记（使用Spring的注解方式实现AOP的细节）

感谢ITCAST发布的免费视频

例外通知会屏蔽后置通知

使用环绕通知可以代替前面所提的所有通知类型

@Aspect

public class MyInterceptor {

@Pointcut("execution (* cn.service.impl.PersonServiceBean.*(..))")

public void anyMethod() {} //declare a pointcut

@Before("anyMethod()") //declare a before advice, parameter is the name of the pointcut

public void doAccessCheck() {

System.out.println("before advice");

}

@After("anyMethod()")

public void doAfterReturning() {

System.out.println("after advice");

}

@AfterReturning("anyMethod()")

public void doAfter() {

System.out.println("final advice");

}

@AfterThrowing("anyMethod()")

public void doThrow() {

System.out.println("throw advice");

}

@Around("anyMethod()")

public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable {

//if () {check authority

System.out.println("in");

Object result = pjp.proceed();

System.out.println("out");

//}

return result;

}

}

如何得到输入参数，返回结果，抛出的异常？

@Aspect

public class MyInterceptor {

@Pointcut("execution (* cn.service.impl.PersonServiceBean.*(..))")

public void anyMethod() {} //declare a pointcut

@Before("anyMethod() && args(name)") //declare a before advice, parameter is the name of the pointcut

public void doAccessCheck(String name) {

System.out.println("before advice");

System.out.println(name);

}

@After("anyMethod()")

public void doAfterReturning() {

System.out.println("after advice");

}

@AfterReturning(pointcut = "anyMethod()", returning = "result")

public void doAfter(String result) {

System.out.println("final advice");

System.out.println(result);

}

@AfterThrowing(pointcut = "anyMethod()", throwing = "ex")

public void doThrow(Exception ex) {

System.out.println("throw advice");

}

@Around("anyMethod()")

public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable {

//if () {check authority

System.out.println("in");

Object result = pjp.proceed();

System.out.println("out");

//}

return result;

}

}