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wujian
2024-03-22 0ce25f34a0d627a5cc0d073d24b8c3e569feac15
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e57a89 1 package com.jcdm.framework.interceptor.impl;
懒 2
3 import java.util.HashMap;
4 import java.util.Map;
5 import java.util.concurrent.TimeUnit;
6 import javax.servlet.http.HttpServletRequest;
7 import org.springframework.beans.factory.annotation.Autowired;
8 import org.springframework.beans.factory.annotation.Value;
9 import org.springframework.stereotype.Component;
10 import com.alibaba.fastjson2.JSON;
11 import com.jcdm.common.annotation.RepeatSubmit;
12 import com.jcdm.common.constant.CacheConstants;
13 import com.jcdm.common.core.redis.RedisCache;
14 import com.jcdm.common.filter.RepeatedlyRequestWrapper;
15 import com.jcdm.common.utils.StringUtils;
16 import com.jcdm.common.utils.http.HttpHelper;
17 import com.jcdm.framework.interceptor.RepeatSubmitInterceptor;
18
19 /**
20  * 判断请求url和数据是否和上一次相同，
21  * 如果和上次相同，则是重复提交表单。 有效时间为10秒内。
22  * 
23  * @author jc
24  */
25 @Component
26 public class SameUrlDataInterceptor extends RepeatSubmitInterceptor
27 {
28     public final String REPEAT_PARAMS = "repeatParams";
29
30     public final String REPEAT_TIME = "repeatTime";
31
32     // 令牌自定义标识
33     @Value("${token.header}")
34     private String header;
35
36     @Autowired
37     private RedisCache redisCache;
38
39     @SuppressWarnings("unchecked")
40     @Override
41     public boolean isRepeatSubmit(HttpServletRequest request, RepeatSubmit annotation)
42     {
43         String nowParams = "";
44         if (request instanceof RepeatedlyRequestWrapper)
45         {
46             RepeatedlyRequestWrapper repeatedlyRequest = (RepeatedlyRequestWrapper) request;
47             nowParams = HttpHelper.getBodyString(repeatedlyRequest);
48         }
49
50         // body参数为空，获取Parameter的数据
51         if (StringUtils.isEmpty(nowParams))
52         {
53             nowParams = JSON.toJSONString(request.getParameterMap());
54         }
55         Map<String, Object> nowDataMap = new HashMap<String, Object>();
56         nowDataMap.put(REPEAT_PARAMS, nowParams);
57         nowDataMap.put(REPEAT_TIME, System.currentTimeMillis());
58
59         // 请求地址（作为存放cache的key值）
60         String url = request.getRequestURI();
61
62         // 唯一值（没有消息头则使用请求地址）
63         String submitKey = StringUtils.trimToEmpty(request.getHeader(header));
64
65         // 唯一标识（指定key + url + 消息头）
66         String cacheRepeatKey = CacheConstants.REPEAT_SUBMIT_KEY + url + submitKey;
67
68         Object sessionObj = redisCache.getCacheObject(cacheRepeatKey);
69         if (sessionObj != null)
70         {
71             Map<String, Object> sessionMap = (Map<String, Object>) sessionObj;
72             if (sessionMap.containsKey(url))
73             {
74                 Map<String, Object> preDataMap = (Map<String, Object>) sessionMap.get(url);
75                 if (compareParams(nowDataMap, preDataMap) && compareTime(nowDataMap, preDataMap, annotation.interval()))
76                 {
77                     return true;
78                 }
79             }
80         }
81         Map<String, Object> cacheMap = new HashMap<String, Object>();
82         cacheMap.put(url, nowDataMap);
83         redisCache.setCacheObject(cacheRepeatKey, cacheMap, annotation.interval(), TimeUnit.MILLISECONDS);
84         return false;
85     }
86
87     /**
88      * 判断参数是否相同
89      */
90     private boolean compareParams(Map<String, Object> nowMap, Map<String, Object> preMap)
91     {
92         String nowParams = (String) nowMap.get(REPEAT_PARAMS);
93         String preParams = (String) preMap.get(REPEAT_PARAMS);
94         return nowParams.equals(preParams);
95     }
96
97     /**
98      * 判断两次间隔时间
99      */
100     private boolean compareTime(Map<String, Object> nowMap, Map<String, Object> preMap, int interval)
101     {
102         long time1 = (Long) nowMap.get(REPEAT_TIME);
103         long time2 = (Long) preMap.get(REPEAT_TIME);
104         if ((time1 - time2) < interval)
105         {
106             return true;
107         }
108         return false;
109     }
110 }