pom.xml如下，需要引入spring-boot-starter-aop、spring-boot-starter-logging

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- swagger -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!--日志-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <!--日志-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
    </dependencies>

這里實(shí)現(xiàn)一個(gè) 只要方法上打了@Log注解，就會(huì)Aop攔截的案例
Log類定義如下：

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 日志記錄注解
 */
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface Log {
    String Value() default "";
}

Aop類定義如下

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;
import java.util.Date;

@Component
@Aspect
public class LogAopDemo {
    private static final Logger logger = LoggerFactory.getLogger(LogAopDemo.class);

    /**
     * 切入點(diǎn)，對(duì)注解@Log進(jìn)行攔截
     */
    @Pointcut("@annotation(com.example.springboot3.Log)")
    public void pointcut() {
    }

    /**
     * 環(huán)繞proceedingJoinPoint
     * @return
     */
    @Around("pointcut()")
    public Object around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        Object result = null;

        //獲取攔截的方法
        MethodSignature signature = (MethodSignature) proceedingJoinPoint.getSignature();
        Method method = signature.getMethod();

        logger.info(String.format("【AOP】攔截方法:%s，開始時(shí)間:%s。", method.getName(), new Date().toString()));
        logger.info("【AOP】Around（執(zhí)行方法前）："+method.getName()+"，傳入?yún)?shù)："+Arrays.asList(proceedingJoinPoint.getArgs()));

        //攔截方法調(diào)用，此處可做一定的邏輯，如果是對(duì)權(quán)限進(jìn)行過濾，沒有權(quán)限不可調(diào)用，可return null
        result = proceedingJoinPoint.proceed();
        logger.info(String.format("【AOP】攔截方法:%s，結(jié)束時(shí)間:%s。", method.getName(), new Date().toString()));
        return result;
    }
    
}

這里定義好了之后，我們?cè)谀硞€(gè)方法上打下@Log注解，驗(yàn)證是否實(shí)現(xiàn)攔截

image.png

訪問UserController的get方法后，可以從日志中看到攔截成功

image.png