如何获取 URI 的最后一个路径段 [英] How to obtain the last path segment of a URI

问题描述

我输入了一个 URI 字符串作为输入.怎么可能得到最后一个路径段(在我的例子中是一个 id)?

I have as input a string that is a URI. how is it possible to get the last path segment (that in my case is an id)?

这是我的输入网址:

String uri = "http://base_path/some_segment/id"

我必须获得我尝试过的id:

and I have to obtain the id I have tried with this:

String strId = "http://base_path/some_segment/id";
strId = strId.replace(path);
strId = strId.replaceAll("/", "");
Integer id =  new Integer(strId);
return id.intValue();

但它不起作用，肯定有更好的方法来做到这一点.

but it doesn't work, and surely there must be a better way to do it.

推荐答案

就是你要找的:

URI uri = new URI("http://example.com/foo/bar/42?param=true");
String path = uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
int id = Integer.parseInt(idStr);

或者

URI uri = new URI("http://example.com/foo/bar/42?param=true");
String[] segments = uri.getPath().split("/");
String idStr = segments[segments.length-1];
int id = Integer.parseInt(idStr);

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