pom.xml的写法如下：（具体的解释在Spring官网上都有介绍，不在赘述）

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.springframework</groupId>
    <artifactId>gs-rest-service</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.3.RELEASE</version>
    </parent>

    <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>
        <dependency>
        <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <properties>
        <java.version>1.8</java.version>
    </properties>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>
</project>

maven工程的目录结构如下：

Greeting.java

package org.springframework.gs_rest_service;

public class Greeting {

    private final long id;
    private final String content;

    public Greeting(long id, String content) {
        this.id = id;
        this.content = content;
    }

    public long getId() {
        return id;
    }

    public String getContent() {
        return content;
    }
}

GreetingController.java

package org.springframework.gs_rest_service;

import java.util.concurrent.atomic.AtomicLong;

//import org.aspectj.lang.annotation.Aspect;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class GreetingController {

    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {
        return new Greeting(counter.incrementAndGet(),
                            String.format(template, name));
    }
}

HttpAspect.java(切面类)

package org.springframework.gs_rest_service;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;


@Aspect
@Component
public class HttpAspect {
    //使用org.slf4j.Logger,这是Spring实现日志的方法
    private final static Logger logger = LoggerFactory.getLogger(HttpAspect.class);

    /**
     * 定义AOP扫描路径
     * 第一个注解只扫描aopTest方法
     */
    //@Pointcut("execution(public * com.aston.reader.controller.StudentController.aopTest())")
    @Pointcut("execution(* org.springframework.gs_rest_service.GreetingController.*(..))")
    public void log(){}

    /**
     * 记录HTTP请求开始时的日志
     */
    @Before("log()")
    public void doBefore(JoinPoint joinPoint){
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        //URL
        logger.info("url={}", request.getRequestURI());
        //method
        logger.info("method={}", request.getMethod());
        //ip
        logger.info("ip={}",request.getRemoteAddr());
        //类方法
        logger.info("class={} and method name = {}",joinPoint.getSignature().getDeclaringTypeName(),joinPoint.getSignature().getName());
        //参数
        logger.info("参数={}",joinPoint.getArgs());
    }

    /**
     * 记录HTTP请求结束时的日志
     */
    @After("log()")
    public void doAfter(){
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        logger.info("url = {} end of execution", request.getRequestURL());
    }

    /**
     * 获取返回内容
     * @param object
     */
    @AfterReturning(returning = "object",pointcut = "log()")
    public void doAfterReturn(Object object){
        logger.info("response={}",object.toString());
    }
}

启动类：

package org.springframework.gs_rest_service;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

如下为运行结果，很明显自行了在方法前后执行了相关的操作,实现AOP的效果。