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fix(rate-limit): IP 限流补充 Redis 异常 Fail-Open 放行

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Ray.Hao
2026-07-17 00:26:00 +08:00
parent cf5d910b60
commit 5f71986d12
1 changed files with 8 additions and 2 deletions
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10
src/main/java/com/youlai/boot/framework/web/filter/IpRateLimitFilter.java
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@@ -70,8 +70,14 @@ public class IpRateLimitFilter extends OncePerRequestFilter {
String key = StrUtil.format(RedisConstants.RateLimit.IP, ip); String key = StrUtil.format(RedisConstants.RateLimit.IP, ip);
long windowMs = ipConfig.getWindow().toMillis(); long windowMs = ipConfig.getWindow().toMillis();
// 执行滑动窗口计数（Lua 原子操作） // 执行滑动窗口计数（Lua 原子操作）；Redis 异常时 Fail-Open 放行
Long count = SlidingWindowScript.execute(redisTemplate, key, windowMs); Long count;
try {
count = SlidingWindowScript.execute(redisTemplate, key, windowMs);
} catch (Exception e) {
log.warn("IP 限流 Redis 异常，Fail-Open 放行 ip={}", ip, e);
count = null;
}
int limit = ipConfig.getLimit(); int limit = ipConfig.getLimit();
int current = count != null ? count.intValue() : 0; int current = count != null ? count.intValue() : 0;