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Pre Merge pull request !1094 from 牛亚博/防重提交添加分布式锁，处理真正的并发场景

pull/1094/MERGE
牛亚博 2026-01-09 03:14:32 +00:00 committed by Gitee
parent 245baa705b 8c65df86fc
commit b55298852c
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GPG Key ID: 173E9B9CA92EEF8F
1 changed files with 28 additions and 14 deletions
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42
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/impl/SameUrlDataInterceptor.java
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@ -65,23 +65,37 @@ public class SameUrlDataInterceptor extends RepeatSubmitInterceptor
// 唯一标识（指定key + url + 消息头） // 唯一标识（指定key + url + 消息头）
String cacheRepeatKey = CacheConstants.REPEAT_SUBMIT_KEY + url + submitKey; String cacheRepeatKey = CacheConstants.REPEAT_SUBMIT_KEY + url + submitKey;
Object sessionObj = redisCache.getCacheObject(cacheRepeatKey); // 使用原子操作检查并设置，避免竞态条件
if (sessionObj != null) String lockKey = cacheRepeatKey + "_lock";
{
Map<String, Object> sessionMap = (Map<String, Object>) sessionObj; // 先尝试获取分布式锁，防止并发问题
if (sessionMap.containsKey(url)) Boolean lockResult = redisCache.redisTemplate.opsForValue().setIfAbsent(lockKey, "1", 1, TimeUnit.SECONDS);
{ if (lockResult == null || !lockResult) {
Map<String, Object> preDataMap = (Map<String, Object>) sessionMap.get(url); // 获取锁失败，说明有并发请求，直接返回重复提交
if (compareParams(nowDataMap, preDataMap) && compareTime(nowDataMap, preDataMap, annotation.interval())) return true;
{ }
return true;
try {
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;
} finally {
// 释放锁
redisCache.deleteObject(lockKey);
} }
Map<String, Object> cacheMap = new HashMap<String, Object>();
cacheMap.put(url, nowDataMap);
redisCache.setCacheObject(cacheRepeatKey, cacheMap, annotation.interval(), TimeUnit.MILLISECONDS);
return false;
} }
/** /**