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;
}
}