SpringBoot 使用AOP处理请求

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

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

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
@Component
public 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);
}
}


3、运行