blocks|key|890623|text|这就是你要找的吗：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|890624|URI+uri+=+new+URI("http://example.com/foo/bar/42?param=true");
String+path+=+uri.getPath();
String+idStr+=+path.substring(path.lastIndexOf('/')+%2B+1);
int+id+=+Integer.parseInt(idStr);|code-block|syntax|javascript|890625|另一个选择|890626|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);|890627|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

is that what you are looking for:

<pre><code>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);
</code></pre>

alternatively

<pre><code>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);
</code></pre>

blocks|key|1105600|text|import+android.net.Uri;
Uri+uri+=+Uri.parse("http://example.com/foo/bar/42?param=true");
String+token+=+uri.getLastPathSegment();|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1105601|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>import android.net.Uri;
Uri uri = Uri.parse("http://example.com/foo/bar/42?param=true");
String token = uri.getLastPathSegment();
</code></pre>

blocks|key|1105665|text|我知道这很陈旧，但这里的解决方案似乎相当冗长。如果您有URL或URI，只需要一个易于阅读的一行程序|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1105666|String+filename+=+new+File(url.getPath()).getName();|code-block|syntax|javascript|1105667|或者如果你有一台String|1105668|String+filename+=+new+File(new+URL(url).getPath()).getName();|1105669|entityMap^0|R|3|V|3|0|0|8|6|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|P|$]]

I know this is old, but the solutions here seem rather verbose. Just an easily readable one-liner if you have a <code>URL</code> or <code>URI</code>:

<pre><code>String filename = new File(url.getPath()).getName();
</code></pre>

Or if you have a <code>String</code>:

<pre><code>String filename = new File(new URL(url).getPath()).getName();
</code></pre>

blocks|key|1105762|text|如果您使用的是Java8，并且想要文件路径中的最后一个段，那么您可以这样做。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1105763|Path+path+=+Paths.get("example/path/to/file");
String+lastSegment+=+path.getFileName().toString();|code-block|syntax|javascript|1105764|如果你有一个像http://base_path/some_segment/id这样的url，你可以这样做。|offset|length|style|CODE|1105765|final+Path+urlPath+=+Paths.get("http://base_path/some_segment/id");
final+Path+lastSegment+=+urlPath.getName(urlPath.getNameCount()+-+1);|1105766|entityMap^0|0|0|7|W|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

If you are using Java 8 and you want the last segment in a file path you can do.

<pre><code>Path path = Paths.get("example/path/to/file");
String lastSegment = path.getFileName().toString();
</code></pre>

If you have a url such as <code>http://base_path/some_segment/id</code> you can do.

<pre><code>final Path urlPath = Paths.get("http://base_path/some_segment/id");
final Path lastSegment = urlPath.getName(urlPath.getNameCount() - 1);
</code></pre>

blocks|key|890887|text|如果您的项目中包含了commons-io，则无需使用org.apache.commons.io.FilenameUtils创建不必要的对象即可完成此操作|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|890888|String+uri+=+"http://base_path/some_segment/id";
String+fileName+=+FilenameUtils.getName(uri);
System.out.println(fileName);|code-block|syntax|javascript|890889|将为您提供路径的最后一部分，即id|890890|entityMap^0|A|A|Q|Z|0|0|F|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

If you have <code>commons-io</code> included in your project, you can do it without creating unecessary objects with <code>org.apache.commons.io.FilenameUtils</code>

<pre><code>String uri = "http://base_path/some_segment/id";
String fileName = FilenameUtils.getName(uri);
System.out.println(fileName);
</code></pre>

Will give you the last part of the path, which is the <code>id</code>

blocks|key|891007|text|您还可以使用replaceAll：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|891008|String+uri+=+"http://base_path/some_segment/id"
String+lastSegment+=+uri.replaceAll(".*/",+"")

System.out.println(lastSegment);|code-block|syntax|javascript|891009|结果：|891010|id|891011|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can also use replaceAll:

<pre><code>String uri = "http://base_path/some_segment/id"
String lastSegment = uri.replaceAll(".*/", "")

System.out.println(lastSegment);
</code></pre>

result:

<pre><code>id
</code></pre>

blocks|key|1105844|text|您可以使用getPathSegments()函数。(Android+Documentation|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1105845|考虑您的示例URI：|1105846|String+uri+=+"http://base_path/some_segment/id"|code-block|syntax|javascript|1105847|您可以使用以下命令获取最后一个数据段：|1105848|List<String>+pathSegments+=+uri.getPathSegments();
String+lastSegment+=+pathSegments.get(pathSegments.size+-+1);|1105849|lastSegment将为id。|1105850|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/reference/android/net/Uri.html#getPathSegments(%2529)^0|5|H|Q|L|0|0|0|0|0|0|0|B|D|2|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|18|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|19|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

You can use <code>getPathSegments()</code> function. (<a href="https://developer.android.com/reference/android/net/Uri.html#getPathSegments()" rel="nofollow noreferrer">Android Documentation</a>)

Consider your example URI:

<pre><code>String uri = "http://base_path/some_segment/id"
</code></pre>

You can get the last segment using:

<pre><code>List&lt;String&gt; pathSegments = uri.getPathSegments();
String lastSegment = pathSegments.get(pathSegments.size - 1);
</code></pre>

<code>lastSegment</code> will be <code>id</code>.

blocks|key|890977|text|我在一个实用程序类中使用了以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|890978|public+static+String+lastNUriPathPartsOf(final+String+uri,+final+int+n,+final+String...+ellipsis)
++throws+URISyntaxException+{
++++return+lastNUriPathPartsOf(new+URI(uri),+n,+ellipsis);
}

public+static+String+lastNUriPathPartsOf(final+URI+uri,+final+int+n,+final+String...+ellipsis)+{
++++return+uri.toString().contains("/")
++++++++?+(ellipsis.length+==+0+?+"..."+:+ellipsis[0])
++++++++++%2B+uri.toString().substring(StringUtils.lastOrdinalIndexOf(uri.toString(),+"/",+n))
++++++++:+uri.toString();
}|code-block|syntax|javascript|890979|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I'm using the following in a utility class:

<pre><code>public static String lastNUriPathPartsOf(final String uri, final int n, final String... ellipsis)
 throws URISyntaxException {
 return lastNUriPathPartsOf(new URI(uri), n, ellipsis);
}

public static String lastNUriPathPartsOf(final URI uri, final int n, final String... ellipsis) {
 return uri.toString().contains("/")
 ? (ellipsis.length == 0 ? "..." : ellipsis[0])
 + uri.toString().substring(StringUtils.lastOrdinalIndexOf(uri.toString(), "/", n))
 : uri.toString();
}
</code></pre>

blocks|key|891026|text|您可以从Uri类中获取路径段列表|type|unstyled|depth|inlineStyleRanges|entityRanges|data|891027|String+id+=+Uri.tryParse("http://base_path/some_segment/id")?.pathSegments.last+??+"InValid+URL";|code-block|syntax|javascript|891028|如果url有效，则返回id；如果无效，则返回“无效url”。|891029|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

you can get list of path segments from the Uri class
<pre><code>String id = Uri.tryParse(&quot;http://base_path/some_segment/id&quot;)?.pathSegments.last ?? &quot;InValid URL&quot;;
</code></pre>
It will return id if the url is valid, if it is invalid it returns &quot;Invalid url&quot;

blocks|key|1105588|text|从URI中获取URL，如果您还没有准备好使用子字符串的方式提取文件，则使用getFile()。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1105589|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Get URL from URI and use getFile() if you are not ready to use substring way of extracting file.

I have as input a string that is a <code>URI</code>. how is it possible to get the last path segment (that in my case is an id)?
This is my input URL:
<pre><code>String uri = &quot;http://base_path/some_segment/id&quot;
</code></pre>
and I have to obtain the id I have tried with this:
<pre><code>String strId = &quot;http://base_path/some_segment/id&quot;;
strId = strId.replace(path);
strId = strId.replaceAll(&quot;/&quot;, &quot;&quot;);
Integer id = new Integer(strId);
return id.intValue();
</code></pre>
but it doesn't work, and surely there must be a better way to do it.

How to obtain the last path segment of a URI

我输入了一个字符串，它是一个URI。如何获得最后一个路径段(在我的例子中是一个id)？这是我的输入URL：String uri = "http://base_path/some_segment/id"并且我必须获得我尝试过的id：String strId = "http://base_path/some_segment/id";strId = strId.replace(path);strId =

问如何获取URI的最后一个路径段
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问如何获取URI的最后一个路径段
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