java 后台防止重复提交(注解方式)

发布时间 2023-10-11 16:59:18作者: 路易蓝
/**
 * 自定义注解防止表单重复提交
 *
 * @author framework
 */
@Inherited
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RepeatSubmit {

    /**
     * 间隔时间(ms),小于此时间视为重复提交
     */
    int interval() default 500;

    TimeUnit timeUnit() default TimeUnit.MILLISECONDS;

    /**
     * 提示消息
     */
    String message() default "请勿重复提交,请稍候再试";

}
/**
 * 防止重复提交
 *
 * @author framework
 */
@Slf4j
@RequiredArgsConstructor
@Aspect
@Component
public class RepeatSubmitAspect {

    @Before("@annotation(repeatSubmit)")
    public void doBefore(JoinPoint point, RepeatSubmit repeatSubmit) throws Throwable {
        // 如果注解不为0 则使用注解数值
        long interval = repeatSubmit.timeUnit().toMillis(repeatSubmit.interval());
        HttpServletRequest request = ServletUtils.getRequest();
        String nowParams = LogUtil.argsArrayToString(point.getArgs());
        // 请求地址(作为存放cache的key值)
        String url = request.getRequestURI();
        // 唯一值(没有消息头则使用请求地址)
        String submitKey = StringUtils.trimToEmpty(request.getHeader(SaManager.getConfig().getTokenName()));

        submitKey = SecureUtil.md5(submitKey + ":" + nowParams);
        // 唯一标识(指定key + url + 消息头)
        String cacheRepeatKey = ConstantsUtil.REPEAT_SUBMIT_KEY + url + submitKey;
        String key = RedisUtils.getCacheObject(cacheRepeatKey);
        if (key == null) {
            RedisUtils.setCacheObject(cacheRepeatKey, "", interval, TimeUnit.MILLISECONDS);
        } else {
            throw new ServiceException(repeatSubmit.message());
        }
    }
}

 

public class LogUtil {

    /**
     * 参数拼装
     */
    public static String argsArrayToString(Object[] paramsArray) {
        StringBuilder params = new StringBuilder();
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (ObjectUtil.isNotNull(o) && !LogUtil.isFilterObject(o)) {
                    try {
                        params.append(JsonUtils.toJsonString(o)).append(" ");
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        return params.toString().trim();
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象,则返回true;否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public static boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                if (value instanceof MultipartFile) {
                    return true;
                }
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                if (entry.getValue() instanceof MultipartFile) {
                    return true;
                }
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }

}

在需要防止重复提交controller层方法中,添加注解  @RepeatSubmit()