浅谈springboot之JoinPoint的getSignature方法

package org.aspectj.lang; 
public interface Signature {
    String toString(); 
    String toShortString(); 
    String toLongString(); 
    String getName(); 
    int getModifiers(); 
    Class getDeclaringType(); 
    String getDeclaringTypeName();
}

joinPoint.getSignature().toString():String com.fast.web.controller.TestController.getString()
joinPoint.getSignature().toShortString():TestController.getString()
joinPoint.getSignature().toLongString():public java.lang.String com.fast.web.controller.TestController.getString()
joinPoint.getSignature().getName():getString
joinPoint.getSignature().getModifiers():1
joinPoint.getSignature().getDeclaringType():class com.fast.web.controller.TestController
joinPoint.getSignature().getDeclaringTypeName():com.fast.web.controller.TestController

package com.fast.web.controller;
import com.fast.framework.dao.TestDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController; 
@RestController
public class TestController {
 
    @Autowired
    private TestDao testDao;
 
    @RequestMapping("/test")
    public String getString() {
        int i = testDao.selectBase();
        return String.valueOf(i);
    }
}

 <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-aop</artifactId>
 </dependency>

import java.lang.annotation.*;
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Action {
    String value() default "list";
}

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
@Aspect
@Component
public class ActAspect {
 
 @AfterReturning("@annotation(包名.Action)")
    public void afterReturning(JoinPoint point){
    
  // 获取切入点方法名
  String methodName = point.getSignature().getName();
  
     // 获取注解中的参数值
        MethodSignature methodSignature = (MethodSignature)point.getSignature();
        Method method = methodSignature.getMethod();
        // 获取注解Action 
        Action annotation = method.getAnnotation(Action.class);
        // 获取注解Action的value参数的值
        String value = annotation.value();
        
        // 获取切点方法入参列表
        Object[] objArray = point.getArgs();
        // 下面代码根据具体入参类型进行修改
        List<String> list = new ArrayList<>();
        for (Object obj: objArray) {
            if(obj instanceof Collection){
                list = (List<String>) obj;
            }
        }
    }    
}