content: package com.ruoyi.framework.interceptor.impl;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  import javax.servlet.http.HttpServletRequest;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.stereotype.Component;
  import com.alibaba.fastjson2.JSON;
  import com.ruoyi.common.annotation.RepeatSubmit;
  import com.ruoyi.common.constant.CacheConstants;
  import com.ruoyi.common.core.redis.RedisCache;
  import com.ruoyi.common.filter.RepeatedlyRequestWrapper;
  import com.ruoyi.common.utils.StringUtils;
  import com.ruoyi.common.utils.http.HttpHelper;
  import com.ruoyi.framework.interceptor.RepeatSubmitInterceptor;
  
  /**
   * 判断请求url和数据是否和上一次相同，
   * 如果和上次相同，则是重复提交表单。 有效时间为10秒内。
   * 
   * @author ruoyi
   */
  @Component
  public class SameUrlDataInterceptor extends RepeatSubmitInterceptor
  {
      public final String REPEAT_PARAMS = "repeatParams";
  
      public final String REPEAT_TIME = "repeatTime";
  
      // 令牌自定义标识
      @Value("${token.header}")
      private String header;
  
      @Autowired
      private RedisCache redisCache;
  
      @SuppressWarnings("unchecked")
      @Override
      public boolean isRepeatSubmit(HttpServletRequest request, RepeatSubmit annotation)
      {
          String nowParams = "";
          if (request instanceof RepeatedlyRequestWrapper)
          {
              RepeatedlyRequestWrapper repeatedlyRequest = (RepeatedlyRequestWrapper) request;
              nowParams = HttpHelper.getBodyString(repeatedlyRequest);
          }
  
          // body参数为空，获取Parameter的数据
          if (StringUtils.isEmpty(nowParams))
          {
              nowParams = JSON.toJSONString(request.getParameterMap());
          }
          Map<String, Object> nowDataMap = new HashMap<String, Object>();
          nowDataMap.put(REPEAT_PARAMS, nowParams);
          nowDataMap.put(REPEAT_TIME, System.currentTimeMillis());
  
          // 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(header));
  
          // 唯一标识（指定key + url + 消息头）
          String cacheRepeatKey = CacheConstants.REPEAT_SUBMIT_KEY + url + submitKey;
  
          Object sessionObj = redisCache.getCacheObject(cacheRepeatKey);
          if (sessionObj != null)
          {
              Map<String, Object> sessionMap = (Map<String, Object>) sessionObj;
              if (sessionMap.containsKey(url))
              {
                  Map<String, Object> preDataMap = (Map<String, Object>) sessionMap.get(url);
                  if (compareParams(nowDataMap, preDataMap) && compareTime(nowDataMap, preDataMap, annotation.interval()))
                  {
                      return true;
                  }
              }
          }
          Map<String, Object> cacheMap = new HashMap<String, Object>();
          cacheMap.put(url, nowDataMap);
          redisCache.setCacheObject(cacheRepeatKey, cacheMap, annotation.interval(), TimeUnit.MILLISECONDS);
          return false;
      }
  
      /**
       * 判断参数是否相同
       */
      private boolean compareParams(Map<String, Object> nowMap, Map<String, Object> preMap)
      {
          String nowParams = (String) nowMap.get(REPEAT_PARAMS);
          String preParams = (String) preMap.get(REPEAT_PARAMS);
          return nowParams.equals(preParams);
      }
  
      /**
       * 判断两次间隔时间
       */
      private boolean compareTime(Map<String, Object> nowMap, Map<String, Object> preMap, int interval)
      {
          long time1 = (Long) nowMap.get(REPEAT_TIME);
          long time2 = (Long) preMap.get(REPEAT_TIME);
          if ((time1 - time2) < interval)
          {
              return true;
          }
          return false;
      }
  }
  