SpringAop--系统日志简例

/**
 * 系统日志实体类
 *
 * @author Mr.song
 * @date 2019/05/09 17:57
 */
public class SysLog implements Serializable {

    private String id;
    private String userName;
    private String ip;
    private Date time;
    private String method;//访问的方法名称
    private String action;//进行的操作名称
    //...
}  

/**
 * 用于记录日志的通知
 *
 * @author Mr.song
 * @date 2019/05/09 19:50
 */
@Aspect      //声明为切面类
@Component
public class LogAspect {

    @Autowired
    private SysLogService sysLogService;
    @Autowired
    private HttpSession session;
    @Autowired
    private HttpServletRequest request;

    @Around("execution(* cn.dintalk.web.controller.*.*.*(..))")
    public Object aroundSysLog(ProceedingJoinPoint pjp) {
        try {
            //获取到切入点的签名
            Signature signature = pjp.getSignature();
            //将签名转为方法的签名
            if (signature instanceof MethodSignature) {
                MethodSignature ms = (MethodSignature) signature;
                //获取方法
                Method method = ms.getMethod();
                //获取注解(判断是否为RequestMapping类型的)
                if (method.isAnnotationPresent(RequestMapping.class)) {
                    //创建日志对象
                    SysLog sysLog = new SysLog();
                    //设置日志的操作方法和名称
                    sysLog.setMethod(method.getName());
                    //获取方法上的注解,设置日志的操作名称
                    RequestMapping requestMapping = method.getAnnotation(RequestMapping.class);
                    sysLog.setAction(requestMapping.name());
                    //设置日志的用户相关信息
                    User user = (User) session.getAttribute("user");
                    if (user == null || UtilFuns.isEmpty(user.getUserName())) {
                        //匿名访问
                        sysLog.setUserName("匿名");
                    } else {
                        sysLog.setUserName(user.getUserName());
                    }
                    //设置日志的ip和时间
                    sysLog.setTime(new Date());
                    sysLog.setIp(request.getRemoteAddr());
                    //添加日志
                    sysLogService.add(sysLog);
                }
            }
            //获取当前切入点方法的所需参数
            Object[] args = pjp.getArgs();
            //执行方法并返回
            Object obj = pjp.proceed(args);
            return obj;
        } catch (Throwable e) {
            throw new RuntimeException(e);
        }
    }
}

<!-- 开启切面注解支持 -->
    <aop:aspectj-autoproxy/>

//展示用户列表
@RequestMapping(value = "/list",name = "查看用户列表")
public String list(@RequestParam(defaultValue = "1") int page, @RequestParam(defaultValue = "5") int size){
    //1.查询到企业下用户的分页数据
    PageInfo pageInfo = userService.findAll(companyId, page, size);
    //2.保存到域中进行转发
    request.setAttribute("page",pageInfo);
    return "system/user/user-list";
}