Spring Boot学习——AOP编程的简单实现

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

package *; //自己定义

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(public * com.aston.reader.controller.StudentController.*())")
    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());
    }
}

package *; //自己定义

import org.springframework.web.bind.annotation.*;

@RestController
public class StudentController {

    @GetMapping(value = "/aoptest")
    public String aopTest(){
        return " AOP test success!";
    }

}