AOP面向切面编程：为Controller类中方法增加日志打印功能

AOP面向切面编程(动态代理）：为Controller控制类中的方法增加日志打印的功能

1、pom文件中增加Spring中aop的坐标依赖；

　　<!--aop打印日志-->

　　<dependency>

　　　　<groupId>org.springframework.boot</groupId>
　　　　<artifactId>spring-boot-starter-aop</artifactId>
　　　　<version>2.2.6.RELEASE</version>
　　</dependency>

 

2、增加Controller控制类中的日志切面类；

@Aspect

@Component
@Slf4j
public class LogAopAspect {

   @Pointcut("execution(public * com.xxx..controller.*.*(..))")
    public void controllerWebLog() {
    }

    @Before("controllerWebLog()")
    public void doBefore(JoinPoint joinPoint) {
        try {
            // 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
            log.info("请求开始 : " + "********************************************");
            // 只记录post方法
            if("POST".equals(request.getMethod())){
                log.info("请求URL : " + request.getRequestURL());
                log.info("客户端ip ["+ request.getRemoteAddr() +"]");
                log.info("请求映射 : 【" + joinPoint.getSignature().getDeclaringTypeName() + "】类的【" + joinPoint.getSignature().getName() + "】方法");

                // 获取参数, 只取自定义的参数, 自带的HttpServletRequest, HttpServletResponse不管
                if (joinPoint.getArgs().length > 0) {
                    for (Object o : joinPoint.getArgs()) {
                        if (Objects.isNull(o) || o instanceof MultipartFile || o instanceof MultipartFile[] || o instanceof HttpServletRequest || o instanceof HttpServletResponse) {
                            continue;
                        }
                        log.info("请求参数 : " + JSONObject.toJSONString(o));
                    }
                }
            }
            // 只记录post方法
            if("GET".equals(request.getMethod()) || "PUT".equals(request.getMethod()) || "DELETE".equals(request.getMethod())){
                // 记录下请求内容
                log.info("请求URL : " + request.getRequestURL());
                log.info("请求IP : " + request.getRemoteAddr());
                log.info("请求映射 : 【" + joinPoint.getSignature().getDeclaringTypeName() + "】类的【" + joinPoint.getSignature().getName() + "】方法");

                // 获取参数, 只取自定义的参数, 自带的HttpServletRequest, HttpServletResponse不管
                if (joinPoint.getArgs().length > 0) {
                    for (Object o : joinPoint.getArgs()) {
                        if (Objects.isNull(o) || o instanceof MultipartFile || o instanceof MultipartFile[] || o instanceof HttpServletRequest || o instanceof HttpServletResponse) {
                            continue;
                        }
                        log.info("请求参数 : " + JSONObject.toJSONString(o));
                    }
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    @AfterReturning(returning = "ret", pointcut = "controllerWebLog()")
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
        log.info("返回 : " + JSONObject.toJSONString(ret));
        log.info("请求结束 : " + "********************************************");
    }
}