import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
/**
* Web层日志切面
*/
@Aspect //这里使用@Aspect注解方式设置AOP
@Order(5) //值越小,越先加载
@Component
public class WebLogAspect {
private Logger logger = Logger.getLogger(getClass());
ThreadLocal<Long> startTime = new ThreadLocal<>();
//这里@Pointcut设置切点可以设置为Controller层的地址
@Pointcut("execution(public * com.training..*.*Controller(..))")
public void webLog(){}
//@Before指在切点方法之前执行,也就是在Controller层方法执行之前执行,这里可以通过JoinPoint获取一些有关方法的信息,在这里也可以修改参数的值
//@Before()括号里设置的是切点方法的名称
@Before("webLog()")
public void doBefore(JoinPoint joinPoint) throws Throwable {
startTime.set(System.currentTimeMillis());
// 接收到请求,记录请求内容
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
// 记录下请求内容
logger.info("URL : " + request.getRequestURL().toString());
logger.info("HTTP_METHOD : " + request.getMethod());
logger.info("IP : " + request.getRemoteAddr());
logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
logger.info("ARGS : " + Arrays.toString(joinPoint.getArgs()));
}
@AfterReturning(returning = "ret", pointcut = "webLog()")
public void doAfterReturning(Object ret) throws Throwable {
// 处理完请求,返回内容
logger.info("RESPONSE : " + ret);
logger.info("SPEND TIME : " + (System.currentTimeMillis() - startTime.get()));
}
}