import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import java.math.BigInteger;
@Aspect
public class aspectj {
// @Before(value = "execution(* com.AspecJ.xiaomaoDao.*(..))")
// public void before(){
// System.out.println("我是前置通知!");
// }
// @AfterReturning(value = "execution(* com.AspecJ.xiaomaoDao.delete())",returning = "element")
// 使用returning来接受返回值
// public void After(Object element){
// System.out.println("我删除了"+element); //打印输出了返回值
// }
// @Around(value="execution(* com.AspecJ.xiaomaoDao.update())")
// public Object around(ProceedingJoinPoint joinPoint){
// Object obj=null;
// System.out.println("环绕前");
// try {
// obj=joinPoint.proceed();
// } catch (Throwable throwable) {
// throwable.printStackTrace();
// }
// System.out.println("环绕后");
// return obj;
// }
@AfterThrowing(value = "execution(* com.AspecJ.xiaomaoDao.find())",throwing = "throwinfo")
public void throwafter(Throwable throwinfo){
System.out.println("发生了异常,异常信息如下:");
System.out.println(throwinfo.getMessage());
}
}
public class xiaomaoDao {
public void save(){
System.out.println("save xiaomao!");
}
public void find(){
System.out.println("find xiaomao!");
int i=1/0;
}
public String delete(){
System.out.println("delete xiaomao!");
return "xiaomao";
}
public void update(){
System.out.println("update xiaomao!");
}
}
delete xiaomao!
find xiaomao!
发生了异常,异常信息如下:
/ by zero