blocks|key|2243339|text|来自Apache+Commons+IO的FilenameUtils.normalize()可以满足您的需求。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2243340|示例：|2243341|FilenameUtils.normalize("foo/"+%2B+"/bar");|code-block|syntax|javascript|2243342|返回字符串"foo/bar"|2243343|entityMap|0|LINK|mutability|MUTABLE|url|http://commons.apache.org/io/|1|http://commons.apache.org/io/api-release/org/apache/commons/io/FilenameUtils.html#normalize%2528java.lang.String%2529^0|K|P|2|H|0|K|P|1|0|0|0|5|9|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]|$9|14|A|15|1|16]]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]]]

<a href="http://commons.apache.org/io/api-release/org/apache/commons/io/FilenameUtils.html#normalize%28java.lang.String%29" rel="nofollow"><code>FilenameUtils.normalize()</code></a> from <a href="http://commons.apache.org/io/" rel="nofollow">Apache Commons IO</a> does what you want.

example:

<pre><code>FilenameUtils.normalize("foo/" + "/bar");
</code></pre>

returns the string <code>"foo/bar"</code>

blocks|key|2243430|text|只使用java.io.File最简单的方法是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2243431|String+combined_path+=+new+File("test/",+"/go").getPath();|code-block|syntax|javascript|2243432|entityMap|0|LINK|mutability|MUTABLE|url|http://download.oracle.com/javase/1.4.2/docs/api/java/io/File.html^0|3|C|3|C|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Using only <a href="http://download.oracle.com/javase/1.4.2/docs/api/java/io/File.html"><code>java.io.File</code></a> the easiest way is to do:

<pre><code>String combined_path = new File("test/", "/go").getPath();
</code></pre>

blocks|key|1785346|text|根据Jon+Skeet+here的建议|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1785347|public+static+String+combine+(String+path1,+String+path2)
{
++++File+file1+=+new+File(path1);
++++File+file2+=+new+File(file1,+path2);
++++return+file2.getPath();
}|code-block|syntax|javascript|1785348|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/22656/jon-skeet|1|https://stackoverflow.com/questions/412380/combine-paths-in-java/412495#412495^0|2|9|0|C|4|1|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]|$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|F|7|Z|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]|Q|$5|L|M|N|C|$O|R]]]]

As suggested by <a href="https://stackoverflow.com/users/22656/jon-skeet">Jon Skeet</a> <a href="https://stackoverflow.com/questions/412380/combine-paths-in-java/412495#412495">here</a>

<pre><code>public static String combine (String path1, String path2)
{
 File file1 = new File(path1);
 File file2 = new File(file1, path2);
 return file2.getPath();
}
</code></pre>

blocks|key|1785268|text|追加这两个字符串，并将//替换为/，如下所示|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1785269|"test//go".replace("//",+"/")|code-block|syntax|javascript|1785270|输出：test/go|1785271|entityMap^0|B|2|G|1|0|0|3|7|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|$]]

Append both the strings and replace <code>//</code> with <code>/</code> as below

<pre><code>"test//go".replace("//", "/")
</code></pre>

Output: <code>test/go</code>

blocks|key|2243306|text|String+test+=++"test/";
String+go+=+"/go";
String+result+=+test+%2B+go.substring(1);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2243307|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>String test = "test/";
String go = "/go";
String result = test + go.substring(1);
</code></pre>

blocks|key|1785384|text|假设这是一个与文件名相关的问题，那么让我们来看看apache-commons-io及其FilenameUtils类|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1785385|final+String+test+=+"test/";
final+String+go+="/go";
System.out.println(FilenameUtils.normalize(test+%2B+go));|code-block|syntax|javascript|1785386|windows上的输出：|1785387|test\go|1785388|normalize方法将为您做更多的工作，例如，在windows系统上将'/‘更改为'\’。|1785389|顺便说一句，祝贺你的声誉得分，几乎只是问问题:-)|1785390|entityMap|0|LINK|mutability|MUTABLE|url|http://commons.apache.org/io/|1|http://commons.apache.org/io/api-release/org/apache/commons/io/FilenameUtils.html^0|O|H|0|17|D|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]|$A|14|B|15|1|16]]|C|$]]|$1|D|3|E|5|F|7|17|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|18|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|19|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|1A|8|@]|9|@]|C|$]]|$1|O|3|P|5|6|7|1B|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|Z]]]]

Supposed this is a question related to file names, than take a look at <a href="http://commons.apache.org/io/" rel="nofollow">apache-commons-io</a> and its <a href="http://commons.apache.org/io/api-release/org/apache/commons/io/FilenameUtils.html" rel="nofollow">FilenameUtils</a> class

<pre><code>final String test = "test/";
final String go ="/go";
System.out.println(FilenameUtils.normalize(test + go));
</code></pre>

output on windows:

<pre><code>test\go
</code></pre>

The normalize method will do much more for you, e.g. change '/' to '\' on windows systems.

By the way congrat's to your reputation score by nearly just asking questions :-)

blocks|key|2243396|text|下面是一个Guava方法，它在从项目的开头和结尾修剪了该字符的所有实例后，将项目的Iterable<String>与char连接起来：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2243397|public+static+String+joinWithChar(final+Iterable<String>+items,
++++final+char+joinChar){
++++final+CharMatcher+joinCharMatcher+=+CharMatcher.is(joinChar);
++++return+Joiner.on('/').join(
++++++++Iterables.transform(items,+new+Function<String,+String>(){

++++++++++++@Override
++++++++++++public+String+apply(final+String+input){
++++++++++++++++return+joinCharMatcher.trimFrom(input);
++++++++++++}
++++++++}));
}|code-block|syntax|javascript|2243398|使用：|BOLD|2243399|System.out.println(joinWithChar(Arrays.asList("test/",+"/go"),+'/'));|2243400|输出：|2243401|2243402|测试/开始|blockquote|2243403|2243404|2243405|2243406|此解决方案|2243407|2243408|不限于文件路径，而是任何类型的字符串|unordered-list-item|2243409|不会替换在标记内找到的任何字符，仅从|2243410|修剪它们|2243411|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/guava-libraries/^0|15|G|1M|4|5|5|0|0|0|0|3|0|0|0|3|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@$9|1L|A|1M|1|1N]]|E|$]]|$1|F|3|G|5|H|7|1O|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1P|8|@$9|1Q|A|1R|B|M]]|D|@]|E|$]]|$1|N|3|O|5|H|7|1S|8|@]|D|@]|E|$I|J]]|$1|P|3|Q|5|6|7|1T|8|@$9|1U|A|1V|B|M]]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1W|8|@]|D|@]|E|$]]|$1|S|3|T|5|U|7|1X|8|@]|D|@]|E|$]]|$1|V|3|-4|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|W|3|-4|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|20|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|21|8|@]|D|@]|E|$]]|$1|10|3|-4|5|6|7|22|8|@]|D|@]|E|$]]|$1|11|3|12|5|13|7|23|8|@]|D|@]|E|$]]|$1|14|3|15|5|13|7|24|8|@]|D|@]|E|$]]|$1|16|3|17|5|6|7|25|8|@]|D|@]|E|$]]|$1|18|3|-4|5|6|7|26|8|@]|D|@]|E|$]]]|19|$1A|$5|1B|1C|1D|E|$1E|1F]]]]

Here's a <a href="http://code.google.com/p/guava-libraries/" rel="nofollow">Guava</a> method that joins an <code>Iterable&lt;String&gt;</code> of items with a <code>char</code>, after trimming all instances of this character from beginning and end of the items:

<pre><code>public static String joinWithChar(final Iterable&lt;String&gt; items,
 final char joinChar){
 final CharMatcher joinCharMatcher = CharMatcher.is(joinChar);
 return Joiner.on('/').join(
 Iterables.transform(items, new Function&lt;String, String&gt;(){

 @Override
 public String apply(final String input){
 return joinCharMatcher.trimFrom(input);
 }
 }));
}
</code></pre>

Usage:

<pre><code>System.out.println(joinWithChar(Arrays.asList("test/", "/go"), '/'));
</code></pre>

Output:

<blockquote>
 test/go
</blockquote>

<hr>

This solution

<ul>
<li>is not restricted to file paths, but to any types of Strings</li>
<li>will not replace any characters found inside the tokens, only trim them from the boundaries</li>
</ul>

blocks|key|3857199|text|更简单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3857200|"test/"+%2B+"."+%2B+"/go"|code-block|syntax|javascript|3857201|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|$]]

Even simpler:

<pre><code>"test/" + "." + "/go"
</code></pre>

I want to combine the strings <code>"test/"</code> and <code>"/go"</code> as <code>"test/go"</code>.

How can I do that?

Combine two strings to a single string representing a path

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想将字符串"test/"和"/go"组合为"test/go"。我该怎么做呢？

问将两个字符串合并为表示路径的单个字符串
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