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spring aop参数传递

使用示例

HelloService

public interface HelloService {



    String hello();

    String hello(String name);

    String hello(String name, Integer age);

}

HelloServiceImpl

@Service

public class HelloServiceImpl implements HelloService {



    @Override

    public String hello() {

        return "hello";

    }



    @Override

    public String hello(String name) {

        return "hello " + name;

    }



    @Override

    public String hello(String name, Integer age) {

        return "hello " + name + " " + age;

    }

}

CustomAspect

@Aspect

@Component

public class CustomAspect {



    @Pointcut("execution(* *.hello(..))")

    public void fun(){



    }



    @Pointcut("execution(* *.hello(String)) && args(name))")

    public void fun2(String name){



    }

    @Pointcut("execution(* *.hello(String,..)) && args(name))")

    public void fun3(String name){



    }



    @Pointcut("execution(* *.hello(String,Integer)) && args(name,age)")

    public void fun4(String name, Integer age){



    }



    @Before("fun()")

    public void before(JoinPoint joinPoint){

        System.out.print("before ==> ");

        process(joinPoint);

    }



    @Before("fun2(name)")

    public void before2(JoinPoint joinPoint,String name){

        System.out.print("before2 ==> " + name + " ==> ");

        process(joinPoint);

    }



    @Before("fun3(name)")

    public void after3(JoinPoint joinPoint,String name){

        System.out.print("after3 ==> "+ name + " ==> ");

        process(joinPoint);

    }



    @After("fun4(name,age)")

    public void after4(JoinPoint joinPoint, String name, Integer age){

        System.out.print("after4 ==> "+ name + " " +age + " ==> ");

        process(joinPoint);

    }



    public void process(JoinPoint joinPoint){

        MethodSignature signature =(MethodSignature) joinPoint.getSignature();

        Method method = signature.getMethod();

        System.out.println(method.getDeclaringClass().getName()+"."+method.getName()+"：被调用");

    }

}

HelloController

@RestController

public class HelloController {



    @Resource

    private HelloService helloService;



    @RequestMapping("/hello")

    public String hello(){

        return helloService.hello();

    }



    @RequestMapping("/hello2")

    public String hello2(){

        return helloService.hello("瓜田李下");

    }



    @RequestMapping("/hello3")

    public String hello3(){

        return helloService.hello("瓜田李下",20);

    }

}

使用示例

localhost:8080/hello，控制台输出：

before ==> com.example.demo.controller.HelloController.hello：被调用

before ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用

localhost:8080/hello2，控制台输出：

after3 ==> 瓜田李下 ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用

before ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用

before2 ==> 瓜田李下 ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用

localhost:8080/hello3，控制台输出：

before ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用

after4 ==> 瓜田李下 20 ==> com.example.demo.service.impl.HelloServiceImpl.hello：被调用