使用JAX-RS的不区分大小写的URL [英] Case-insensitive URLs with JAX-RS

问题描述

有没有简单的方法在JAX-RS Web服务中提供不区分大小写的URL？这样做的目的是生成一个宽松的接受者的网络服务。 ¹

Is there any easy way to provide a case-insensitive URLs in a JAX-RS web service? The goal of this is to produce a web service which is a "lenient acceptor."¹

我想这可以用一个过滤哪个 .to [Lower | Upper] Case（） s所有传入的URL。不幸的是，这种实现需要程序员纪律/一致性，以确保应用程序中的所有硬编码URL字符串严格[大写]。

另外，我不喜欢尚未知道JAX-RS类似于servlet过滤器。

I imagine it's possible to do this with a filter which .to[Lower|Upper]Case()s all incoming URLs. Unfortunately, this implementation demands programmer discipline/consistency in making sure that all hard-coded URL strings in the application are strictly [lower|upper]case.
Also, I don't yet know the JAX-RS analog to a servlet filter.

如果重要，我使用Jersey作为我的JAX-RS实现。

If it matters, I'm using Jersey as my JAX-RS implementation.

_{¹ 因为，对你接受的东西宽容，并严格对待你产生（不记得来源）}

_{¹As in, "be lenient in what you accept, and strict in what you produce" (can't recall the source)}

推荐答案

答案是否定的，因为基本上根据 RFC 3986 的URI区分大小写：

The answer is No, since basically URIs according to RFC 3986 are case sensitive:

6.2.2.1。案例规范化

6.2.2.1. Case Normalization

对于所有URI，百分比编码
三元组中的十六进制数字（例如，％3a与％3A）是 - 不敏感，因此
应该被标准化为使用大写字母表示数字AF。

For all URIs, the hexadecimal digits within a percent-encoding triplet (e.g., "%3a" versus "%3A") are case-insensitive and therefore should be normalized to use uppercase letters for the digits A-F.

当URI使用通用语法的组件时，组件
语法等价规则总是适用;即，该方案和
主机不区分大小写，因此应该标准化为
小写。例如，URI是
，相当于 http://www.example.com/ 。假设其他通用语法
组件区分大小写，除非该方案另有特定
定义（参见第6.2.3节）。

When a URI uses components of the generic syntax, the component syntax equivalence rules always apply; namely, that the scheme and host are case-insensitive and therefore should be normalized to lowercase. For example, the URI is equivalent to http://www.example.com/. The other generic syntax components are assumed to be case-sensitive unless specifically defined otherwise by the scheme (see Section 6.2.3).

如果你仍然想让它们不区分大小写，你可以使用servlet过滤器并将它放在JAX-RS框架之前。你仍然需要在你的申请中保持一致。

If you still want to make them case insensitive, you can use a servlet filter and put it in front of JAX-RS framework. You still need to be consistent in your application.

如果你考虑从泽西转换到 Apache Wink ，你可以使用动态资源，以确保所有网址都较低/较高。因此，将servlet过滤器与动态资源相结合可以为这种情况提供完整的解决方案。

If you consider switching from Jersey to Apache Wink, you can use the Dynamic Resources to ensure that all urls are lower/upper-cased. So combining a servlet filter with the Dynamic Resources can be a full solution for this case.

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