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面向切面编程AOP是一种编程范式，与语言无关，是一种程序设计思想

使用AOP统一处理请求日志

1、增加maven配置

      
    
     org.springframework.boot
       
    
     spring-boot-starter-aop
    
   

2、新增类

package cn.edu.shu.ces_chenjie.aspect;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@Componentpublic class HttpAspect {    private final static Logger logger = LoggerFactory.getLogger(HttpAspect.class);    //新增一个切点    @Pointcut("execution(public * cn.edu.shu.ces_chenjie.controller.PersonController.*(..))")    public void log(){    }    //在切点执行以前    @Before("log()")    public void before(JoinPoint joinPoint){        logger.info("-------------------------所有请求结束之前进行拦截-------------------------------------");        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();        HttpServletRequest request = attributes.getRequest();        logger.info("url={}",request.getRequestURL());        logger.info("method={}",request.getMethod());        logger.info("ip={}",request.getRemoteAddr());        logger.info("class_method={}",joinPoint.getSignature().getDeclaringTypeName() + "." +                joinPoint.getSignature().getName()        );        logger.info("args={}",joinPoint.getArgs());    }    //在切点执行以后    @After("log()")    public void after(){        logger.info("-------------------------所有请求结束之后进行拦截-------------------------------------");    }    //在切点返回以后    @AfterReturning(pointcut = "log()",returning = "object")    public void afterReturning(Object object){        logger.info("response={}",object);    }}