SpringBoot中使用AspectJ
package sb.simple.aspectj.normal;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.context.annotation.Configuration;
import java.util.Arrays;
/**
* AspectJ
* 五种通知注解：@Before/@Around/@After/@AfterReturning/@AfterThrowing
*/
@Configuration
@Aspect
public class AJNormal {
@Pointcut("execution(* .*.*(..))")
public void point() { }
/**
* 前置通知
* 连接点之前执行
*/
@Before("point()")
public void before(JoinPoint joinPoint) {
String methodName = joinPoint.getSignature().getName();
Object[] args = joinPoint.getArgs();
System.out.println("before() methodName:" + methodName + ", args:" + Arrays.toString(args));
}
@Around("point()")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
String methodName = joinPoint.getSignature().getName();
Object[] args = joinPoint.getArgs();
System.out.println("around() before proceed");
Object proceed = joinPoint.proceed();
System.out.println("around() after proceed methodName:" + methodName + ", args:" + Arrays.toString(args) + ", result:" + proceed);
return proceed;
}
/**
* 后置通知
* 连接点方法完成后执行
* 无论连接点执行成功与否该通知都会执行
*/
@After("point()")
public void after(JoinPoint joinPoint) {
String methodName = joinPoint.getSignature().getName();
Object[] args = joinPoint.getArgs();
System.out.println("after() methodName:" + methodName + ", args:" + Arrays.toString(args));
}
/**
* 连接点方法执行成功后执行
* 可以拿到返回结果
*/
@AfterReturning(value = "point()", returning = "result")
public void result(JoinPoint joinPoint, Object result) {
String methodName = joinPoint.getSignature().getName();
Object[] args = joinPoint.getArgs();
System.out.println("AfterReturning() methodName:" + methodName + ", args:" + Arrays.toString(args) + ", result:" + result);
}
/**
* 连接点方法执行异常后执行
* 可以拿到异常信息
*/
@AfterThrowing(value = "point()", throwing = "exception")
public void afterThrowing(JoinPoint joinPoint, Exception exception) {
String methodName = joinPoint.getSignature().getName();
Object[] args = joinPoint.getArgs();
System.out.println("afterThrowing() methodName:" + methodName + ", args:" + Arrays.toString(args) + ", exception:" + exception);
}
}