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3.0 引入 ClusterFilter 拦截器定义 #7382

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chickenlj opened this issue Mar 16, 2021 · 0 comments
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3.0 引入 ClusterFilter 拦截器定义 #7382

chickenlj opened this issue Mar 16, 2021 · 0 comments

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@chickenlj
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在 Dubbo 中， Filter 被设计用来拦截和过滤单次请求，基于这个实现，用户和开发者可以在不改变核心框架的情况下，非常方便的嵌入自己的逻辑来影响请求行为和请求数据。

从 3.0 版本开始，在保持原有 Filter 拦截语义的情况下，框架在消费端引入了新的拦截扩展点 ClusterFilter，用于在选址之前拦截请求，并且我们建议在绝大多数情况下，都尽量选择将拦截器都定义为 ClusterFilter：

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