@Component

@Aspect

public class LogAop {

    @Autowired

    private HttpServletRequest request;

    @Autowired

    private SysLogService sysLogService;

    private Date visitTime; //开始时间

    private Class clazz; //访问的类

    private Method method;//访问的方法

    //前置通知  主要是获取开始时间，执行的类是哪一个，执行的是哪一个方法

    @Before("execution(* com.hdh.controller.*Controller.*(..))")

    public void doBefore(JoinPoint jp) throws NoSuchMethodException {

        visitTime = new Date();//当前时间就是开始访问的时间

        clazz = jp.getTarget().getClass(); //具体要访问的类

        String methodName = jp.getSignature().getName(); //获取访问的方法的名称

        Object[] args = jp.getArgs();//获取访问的方法的参数

        //获取具体执行的方法的Method对象

        if (args == null || args.length == 0) {

            method = clazz.getMethod(methodName); //只能获取无参数的方法

        } else {

            Class[] classArgs = new Class[args.length];

            for (int i = 0; i < args.length; i++) {

                classArgs[i] = args[i].getClass();

            }

            clazz.getMethod(methodName, classArgs);

        }

    }

    //后置通知

    @After("execution(* com.hdh.controller.*Controller.*(..))")

    public void doAfter(JoinPoint jp) throws Exception {

        long time = new Date().getTime() - visitTime.getTime(); //获取访问的时长

        String url = "";

        //获取url

        if (clazz != null && method != null && clazz != LogAop.class ) {

            // 1.获取类上的@RequestMapping("/orders")

            RequestMapping classAnnotation = (RequestMapping) clazz.getAnnotation(RequestMapping.class);

            if (classAnnotation != null) {

                String[] classValue = classAnnotation.value();

                //2.获取方法上的@RequestMapping(xxx)

                RequestMapping methodAnnotation = method.getAnnotation(RequestMapping.class);

                if (methodAnnotation != null) {

                    String[] methodValue = methodAnnotation.value();

                    url = classValue[0] + methodValue[0];

                    //获取访问的ip

                    String ip = request.getRemoteAddr();

                    //获取当前操作的用户

                    SecurityContext context = SecurityContextHolder.getContext();//从上下文中获了当前登录的用户

                    User user = (User) context.getAuthentication().getPrincipal();

                    String username = user.getUsername();

                    //将日志相关信息封装到SysLog对象

                    SysLog sysLog = new SysLog();

                    sysLog.setExecutionTime(time); //执行时长

                    sysLog.setIp(ip);

                    sysLog.setMethod("[类名] " + clazz.getName() + "[方法名] " + method.getName());

                    sysLog.setUrl(url);

                    sysLog.setUsername(username);

                    sysLog.setVisitTime(visitTime);

                    sysLog.setId(UUID.randomUUID().toString().replace("-", ""));

                    //调用Service完成操作

                    sysLogService.save(sysLog);

                }

            }

        }

    }

}

<!-- 配置全局servlet -->

    <listener>

        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>

    </listener>