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

@Target({ ElementType.PARAMETER, ElementType.METHOD }) // 注解放置的目標位置,PARAMETER: 可用在參數(shù)上  METHOD：可用在方法級別上
@Retention(RetentionPolicy.RUNTIME)    // 指明修飾的注解的生存周期  RUNTIME：運行級別保留
@Documented
public @interface Log {

    /**
     * 模塊
     */
    String title() default "";

    /**
     * 功能
     */
    public BusinessType businessType() default BusinessType.OTHER;

    /**
     * 是否保存請求的參數(shù)
     */
    public boolean isSaveRequestData() default true;

    /**
     * 是否保存響應的參數(shù)
     */
    public boolean isSaveResponseData() default true;
}

@Aspect
@Component
@Slf4j
public class LogAspect {
    @Autowired
    private IXlOperLogService operLogService;
    /**
     * 處理完請求后執(zhí)行
     * @param joinPoint 切點
     */
    @AfterReturning(pointcut = "@annotation(controllerLog)", returning = "jsonResult")
    public void doAfterReturnibng(JoinPoint joinPoint, Log controllerLog, Object jsonResult) {
        handleLog(joinPoint, controllerLog, null, jsonResult);
    }
    protected void handleLog(final JoinPoint joinPoint, Log controllerLog, final Exception e, Object jsonResult) {
        try {
            // 獲取當前的用戶
            JwtUser loginUser = SecurityUtils.getLoginUser();

            // 日志記錄
            XlOperLog operLog = new XlOperLog();
            operLog.setStatus(0);
            // 請求的IP地址
            String iP = ServletUtil.getClientIP(ServletUtils.getRequest());
            if ("0:0:0:0:0:0:0:1".equals(iP)) {
                iP = "127.0.0.1";
            }
            operLog.setOperIp(iP);
            operLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
            if (loginUser != null) {
                operLog.setOperName(loginUser.getUsername());
            }
            if (e != null) {
                operLog.setStatus(1);
                operLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000));
            }
            // 設置方法名稱
            String className = joinPoint.getTarget().getClass().getName();
            String methodName = joinPoint.getSignature().getName();
            operLog.setMethod(className + "." + methodName + "()");
            operLog.setRequestMethod(ServletUtils.getRequest().getMethod());
            operLog.setOperTime(new Date());
            // 處理設置注解上的參數(shù)
            getControllerMethodDescription(joinPoint, controllerLog, operLog, jsonResult);
            // 保存數(shù)據(jù)庫
            operLogService.save(operLog);

        } catch (Exception exp) {
            log.error("異常信息:{}", exp.getMessage());
            exp.printStackTrace();
        }
    }
    /**
     * 獲取注解中對方法的描述信息 用于Controller層注解
     * @param log 日志
     * @param operLog 操作日志
     * @throws Exception
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, Log log, XlOperLog operLog, Object jsonResult) throws Exception {
        // 設置操作業(yè)務類型
        operLog.setBusinessType(log.businessType().ordinal());
        // 設置標題
        operLog.setTitle(log.title());
        // 是否需要保存request，參數(shù)和值
        if (log.isSaveRequestData()) {
            // 設置參數(shù)的信息
            setRequestValue(joinPoint, operLog);
        }
        // 是否需要保存response，參數(shù)和值
        if (log.isSaveResponseData() && StringUtils.isNotNull(jsonResult)) {
            operLog.setJsonResult(StringUtils.substring(JSON.toJSONString(jsonResult), 0, 2000));
        }
    }
    /**
     * 獲取請求的參數(shù)，放到log中
     * @param operLog 操作日志
     * @throws Exception 異常
     */
    private void setRequestValue(JoinPoint joinPoint, XlOperLog operLog) throws Exception {
        String requsetMethod = operLog.getRequestMethod();
        if (HttpMethod.PUT.name().equals(requsetMethod) || HttpMethod.POST.name().equals(requsetMethod)) {
            String parsams = argsArrayToString(joinPoint.getArgs());
            operLog.setOperParam(StringUtils.substring(parsams,0,2000));
        } else {
            Map<?,?> paramsMap = (Map<?,?>) ServletUtils.getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            operLog.setOperParam(StringUtils.substring(paramsMap.toString(),0,2000));
        }
    }
    /**
     * 參數(shù)拼裝
     */
    private String argsArrayToString(Object[] paramsArray) {
        String params = "";
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object object : paramsArray) {
                // 不為空 并且是不需要過濾的 對象
                if (StringUtils.isNotNull(object) && !isFilterObject(object)) {
                    Object jsonObj = JSON.toJSON(object);
                    params += jsonObj.toString() + " ";
                }
            }
        }
        return params.trim();
    }
    /**
     * 判斷是否需要過濾的對象。
     * @param object 對象信息。
     * @return 如果是需要過濾的對象，則返回true；否則返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object object) {
        Class<?> clazz = object.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) object;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) object;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return object instanceof MultipartFile || object instanceof HttpServletRequest
                || object instanceof HttpServletResponse || object instanceof BindingResult;
    }
}

	@Log(title = "代碼生成", businessType = BusinessType.GENCODE)
    @ApiOperation(value = "批量生成代碼")
    @GetMapping("/download/batch")
    public void batchGenCode(HttpServletResponse response, String tables) throws IOException {
        String[] tableNames = Convert.toStrArray(tables);
        byte[] data = genTableService.downloadCode(tableNames);
        genCode(response, data);
    }