content: package com.ruoyi.framework.interceptor.impl;
  
  import java.util.HashMap;
  import java.util.Map;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpSession;
  import org.springframework.stereotype.Component;
  import com.ruoyi.common.json.JSON;
  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";
  
      public final String SESSION_REPEAT_KEY = "repeatData";
  
      /**
       * 间隔时间，单位:秒 默认10秒
       * 
       * 两次相同参数的请求，如果间隔时间大于该参数，系统不会认定为重复提交的数据
       */
      private int intervalTime = 10;
  
      public void setIntervalTime(int intervalTime)
      {
          this.intervalTime = intervalTime;
      }
  
      @SuppressWarnings("unchecked")
      @Override
      public boolean isRepeatSubmit(HttpServletRequest request) throws Exception
      {
          // 本次参数及系统时间
          String nowParams = JSON.marshal(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session的key值）
          String url = request.getRequestURI();
  
          HttpSession session = request.getSession();
          Object sessionObj = session.getAttribute(SESSION_REPEAT_KEY);
          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))
                  {
                      return true;
                  }
              }
          }
          Map<String, Object> sessionMap = new HashMap<String, Object>();
          sessionMap.put(url, nowDataMap);
          session.setAttribute(SESSION_REPEAT_KEY, sessionMap);
          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)
      {
          long time1 = (Long) nowMap.get(REPEAT_TIME);
          long time2 = (Long) preMap.get(REPEAT_TIME);
          if ((time1 - time2) < (this.intervalTime * 1000))
          {
              return true;
          }
          return false;
      }
  }
  