路径段序列到JAX-RS / Jersey中的vararg数组? [英] Path segment sequence to vararg array in JAX-RS / Jersey?

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问题描述

JAX-RS / Jersey允许使用 @PathParam 注释将URL路径元素转换为Java方法参数。

JAX-RS/Jersey allows URL path elements to be converted to Java method arguments using @PathParam annotations.

有没有办法将未知数量的路径元素转换为vararg Java方法的参数? I. e。 / foo / bar / x / y / z 应该转到方法: foo(@PathParam(...)String [] params){。 ..} 其中 params [0] x params [1] y params [2] z

Is there a way to convert an unknown number of path elements into arguments to a vararg Java method? I. e. /foo/bar/x/y/z should go to method: foo(@PathParam(...) String [] params) { ... } where params[0] is x, params[1] is y and params[2] is z

我可以在泽西岛/ JAX-RS或某种方便的方式进行此操作吗?

推荐答案

不确定这是否正是您所寻找的,但您可以这样做。

Not sure if this is exactly what you were looking for but you could do something like this.

@Path("/foo/bar/{other: .*}
public Response foo(@PathParam("other") VariableStrings vstrings) {
   String[] splitPath = vstrings.getSplitPath();
   ...
}

其中VariableStrings是您定义的类。

Where VariableStrings is a class that you define.

public class VariableStrings {

   private String[] splitPath;

   public VariableStrings(String unparsedPath) {
     splitPath = unparsedPath.split("/");
   }
}

注意,我没有检查过这段代码,因为它只是为了给你一个想法。
这是因为VariableStrings可以注入,因为它们的构造函数
只需要一个字符串。

Note, I haven't checked this code, as it's only intended to give you an idea. This works because VariableStrings can be injected due to their constructor which only takes a String.

查看 docs

最后,作为使用@PathParam注释注入VariableString
的替代方法,您可以将此逻辑包装到您自己的自定义Jersey Provider中。这个提供程序会以与上面相同的方式注入VariableStrings,但它可能看起来更清晰。不需要PathParam注释。

Finally, as an alternative to using the @PathParam annotation to inject a VariableString you could instead wrap this logic into your own custom Jersey Provider. This provider would inject a "VariableStrings" more or less the same manner as above, but it might look a bit cleaner. No need for a PathParam annotation.

Coda Hale给出了一个很好的概述

Coda Hale gives a good overview.

这篇关于路径段序列到JAX-RS / Jersey中的vararg数组?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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