java 什么是泽西过滤器？
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What is a Jersey Filter?
提问by meisam
I want to know basically what a Jersey filter is and how is it related to a servlet filter? Are they the same? What are the main patterns of using a Jersey Filter?
我想基本上知道 Jersey 过滤器是什么以及它与 servlet 过滤器有什么关系？他们是一样的吗？使用泽西过滤器的主要模式是什么？
采纳答案by Zeemee
The first part of your question may be answered in the Jersey documentation. A Jersey filter is not the same as a servlet filter. There are two filters included in Jersey, a filter for logging requests and one for compression (GZip). Another use case for a custom filter would be authentication or authorization.
您的问题的第一部分可能会在Jersey 文档中得到解答。Jersey 过滤器与 servlet 过滤器不同。Jersey 中包含两个过滤器，一个用于记录请求的过滤器，一个用于压缩 (GZip)。自定义过滤器的另一个用例是身份验证或授权。
回答by Eyal
Technically, a Jersey filter is not a servlet filter. However, you can use a Jersey filter for many of the same things that you would use a servlet filter for - cross-cutting concerns that affect all (or some, or most) the services that Jersey exposes.
从技术上讲，Jersey 过滤器不是 servlet 过滤器。但是，您可以将 Jersey 过滤器用于许多与使用 servlet 过滤器相同的事情 - 影响 Jersey 公开的所有（或部分或大部分）服务的横切关注点。
As the previous answer states, Jersey comes with two filters, but you can usefully implement the Jersey interfaces ContainerRequestFilteror/and ContainerResponseFilterif you don't want to extend them. You're not limited to these two.
正如前面的答案所述，Jersey 带有两个过滤器，但您可以有效地实现 Jersey 接口ContainerRequestFilter或/和ContainerResponseFilter如果您不想扩展它们。你不仅限于这两个。
Another Jersey interface to keep in mind is ResourceFilter- this interface can be implemented for a filter that affects only some of the services.
要记住的另一个 Jersey 接口是ResourceFilter- 可以为仅影响某些服务的过滤器实现此接口。
