blocks|key|1487334|text|在Java中，字符串是Unicode+(文档所说的utf-16)。因此，只需传递文件名即可。当然，底层操作系统应该支持这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1487335|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|$]]

Strings are Unicode (utf-16 as docs say) in Java. So just pass the file name as such. Of course the underlying OS should support this.

blocks|key|1855667|text|如何显示文件名？问题很可能出在显示器上，而不是获取字符串。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1855668|我建议您打印出每个字符的Unicode值(使用charAt()获取每个字符，然后将其转换为int)，并将它们与Unicode+code+charts进行比较。|offset|length|style|CODE|1855669|entityMap|0|LINK|mutability|MUTABLE|url|http://www.unicode.org/charts/^0|0|N|8|19|3|1J|J|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]|$D|T|E|U|F|G]]|9|@$D|V|E|W|1|X]]|A|$]]|$1|H|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

How are you displaying the filename? Chances are the problem is in the display rather than fetching the string.

I suggest you print out the Unicode value of each character (use <code>charAt()</code> to get each character, then convert it to an <code>int</code>) and compare them to the <a href="http://www.unicode.org/charts/" rel="nofollow noreferrer">Unicode code charts</a>.

blocks|key|1455340|text|从Java向Windows命令提示符发出“国际”字符的问题有三个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1455341|1455342|默认栅格字体不支持|ordered-list-item|1455343|默认8位代码页可追溯到DOS时代，并且与系统上的默认Window编码不同|1455344|Java+(System.out)以默认操作系统编码对输出进行编码，在Windows上，这将是一个固有的有损进程|1455345|1455346|要让Java发出字符，请执行以下任一操作：|1455347|1455348|安装MUI并切换到允许使用所需字符的设置(您可能仍然需要使用chcp将控制台切换到包含字符的Unicode+TrueType字体，并使用本机方法(WriteConsoleW发出文本。|offset|length|1455349|1455350|解释这一切的链接：|1455351|1455352|I18N:+Unicode+at+the+Windows+command+prompt+(C%2B%2B;+.Net;+Java)|unordered-list-item|1455353|Java:+Unicode+on+the+Windows+command+line|1455354|1455355|1455356|您可能会更幸运地在Swing下显示字符。您可以使用这样的应用程序来测试Swing可用的字体，以查看它们是否渲染您的字符：|1455357|public+class+FontTest+{

++//+a+Cyrillic+and+two+CJK+characters++++
++private+final+String+filename+=+"\u044F\u4E10\u4E20.txt";

++private+ComboBoxModel+createModel()+{
++++GraphicsEnvironment+genv+=+GraphicsEnvironment
++++++++.getLocalGraphicsEnvironment();
++++Vector+fonts+=+new+Vector();
++++for+(Font+font+:+genv.getAllFonts())+{
++++++Font+newFont+=+new+Font(font.getFontName(),+font
++++++++++.getStyle(),+12);
++++++fonts.add(newFont);
++++}
++++DefaultComboBoxModel+model+=+new+DefaultComboBoxModel(
++++++++fonts);
++++return+model;
++}

++private+JFrame+createGui()+{
++++final+JLabel+label+=+new+JLabel();
++++label.setText(filename);

++++final+JComboBox+combo+=+new+JComboBox();
++++combo.setEditable(false);
++++combo.setModel(createModel());
++++combo.addActionListener(new+ActionListener()+{
++++++@Override
++++++public+void+actionPerformed(ActionEvent+e)+{
++++++++Font+font+=+(Font)+combo.getSelectedItem();
++++++++label.setFont(font);
++++++}
++++});

++++label.setFont((Font)+combo.getItemAt(0));

++++JFrame+frame+=+new+JFrame();
++++Container+contentPane+=+frame.getContentPane();
++++contentPane.setLayout(new+GridLayout(0,+1));
++++contentPane.add(label);
++++contentPane.add(combo);
++++frame.pack();
++++frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

++++return+frame;
++}

++public+static+void+main(String[]+args)+{
++++JFrame+frame+=+new+FontTest().createGui();
++++frame.setVisible(true);
++}

}|code-block|syntax|javascript|1455358|XP下的Java6使用默认的对话框字体完美地显示所有字符(+JLabel+-这是一个映射到其他内容的逻辑名称，因此您不会在charmap中看到它)。|1455359|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/goglobal/bb978454.aspx|1|http://msdn.microsoft.com/en-us/library/ms687401(VS.85%2529.aspx)|2|http://illegalargumentexception.blogspot.com/2009/04/i18n-unicode-at-windows-command-prompt.html|3|http://illegalargumentexception.blogspot.com/2009/04/java-unicode-on-windows-command-line.html^0|0|0|0|0|0|0|0|0|2|3|0|21|D|1|0|0|0|0|0|1P|2|0|0|15|3|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1P|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1R|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|1S|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|1T|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1V|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|N|3|O|5|E|7|1X|8|@]|9|@$P|1Y|Q|1Z|1|20]|$P|21|Q|22|1|23]]|A|$]]|$1|R|3|-4|5|6|7|24|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|25|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|26|8|@]|9|@]|A|$]]|$1|V|3|W|5|X|7|27|8|@]|9|@$P|28|Q|29|1|2A]]|A|$]]|$1|Y|3|Z|5|X|7|2B|8|@]|9|@$P|2C|Q|2D|1|2E]]|A|$]]|$1|10|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|11|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|2H|8|@]|9|@]|A|$]]|$1|14|3|15|5|16|7|2I|8|@]|9|@]|A|$17|18]]|$1|19|3|1A|5|6|7|2J|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|2K|8|@]|9|@]|A|$]]]|1C|$1D|$5|1E|1F|1G|A|$1H|1I]]|1J|$5|1E|1F|1G|A|$1H|1K]]|1L|$5|1E|1F|1G|A|$1H|1M]]|1N|$5|1E|1F|1G|A|$1H|1O]]]]

The problem with emitting "international" characters to the Windows command prompt from Java are threefold:

<ol>
<li>The default raster font doesn't support it</li>
<li>The default 8-bit code page dates back to the DOS days and isn't the same as the default Windows encoding on the system</li>
<li>Java (System.out) encodes output in the default operating system encoding, which on Windows is going to be an inherently lossy process</li>
</ol>

To get Java to emit the characters, either:

<ol>
<li>Install a <a href="http://msdn.microsoft.com/en-us/goglobal/bb978454.aspx" rel="nofollow noreferrer">MUI</a> and switch to the settings that allow the characters you want (you might still need to use chcp to switch encodings)</li>
<li>Switch the console to a Unicode TrueType font that includes the characters and use native methods (<a href="http://msdn.microsoft.com/en-us/library/ms687401(VS.85).aspx" rel="nofollow noreferrer">WriteConsoleW</a>) to emit the text.</li>
</ol>

Links that explain it all:

<ul>
<li><a href="http://illegalargumentexception.blogspot.com/2009/04/i18n-unicode-at-windows-command-prompt.html" rel="nofollow noreferrer">I18N: Unicode at the Windows command prompt (C++; .Net; Java)</a></li>
<li><a href="http://illegalargumentexception.blogspot.com/2009/04/java-unicode-on-windows-command-line.html" rel="nofollow noreferrer">Java: Unicode on the Windows command line</a></li>
</ul>

<hr>

You'll probably have better luck displaying the characters under Swing. You can use an app like this to test the fonts available to Swing to see if they render your characters:

<pre><code>public class FontTest {

 // a Cyrillic and two CJK characters 
 private final String filename = "\u044F\u4E10\u4E20.txt";

 private ComboBoxModel createModel() {
 GraphicsEnvironment genv = GraphicsEnvironment
 .getLocalGraphicsEnvironment();
 Vector&lt;Font&gt; fonts = new Vector&lt;Font&gt;();
 for (Font font : genv.getAllFonts()) {
 Font newFont = new Font(font.getFontName(), font
 .getStyle(), 12);
 fonts.add(newFont);
 }
 DefaultComboBoxModel model = new DefaultComboBoxModel(
 fonts);
 return model;
 }

 private JFrame createGui() {
 final JLabel label = new JLabel();
 label.setText(filename);

 final JComboBox combo = new JComboBox();
 combo.setEditable(false);
 combo.setModel(createModel());
 combo.addActionListener(new ActionListener() {
 @Override
 public void actionPerformed(ActionEvent e) {
 Font font = (Font) combo.getSelectedItem();
 label.setFont(font);
 }
 });

 label.setFont((Font) combo.getItemAt(0));

 JFrame frame = new JFrame();
 Container contentPane = frame.getContentPane();
 contentPane.setLayout(new GridLayout(0, 1));
 contentPane.add(label);
 contentPane.add(combo);
 frame.pack();
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

 return frame;
 }

 public static void main(String[] args) {
 JFrame frame = new FontTest().createGui();
 frame.setVisible(true);
 }

}
</code></pre>

Java 6 under XP displays all the characters perfectly using the default JLabel font (Dialog - which is a logical name mapping to something else, so you won't see it in charmap).

I decided to write a program that lists all of the files and directories, but I have a problem when dealing with non-English filenames.

The problem is that my program cannot guarantee those directories and filenames are in English, if some filenames are using Japanese or Chinese characters it will display some characters as '?'.

J2SE provides a variety of java.io.File list() functions: <a href="https://docs.oracle.com/javase/1.5.0/docs/api/java/io/File.html" rel="nofollow noreferrer">https://docs.oracle.com/javase/1.5.0/docs/api/java/io/File.html</a>.

But it seems not to deal with non-English filenames.

Does anyone have the same problem? What direction should I look for the solution?

I googled keywords like "java list non-english filename", "java.io.file list non-english filename", but unfortunately I can't find the solution.

I hope people bring some thoughts to me, no matter whether its searching keywords in google, or program directions.

Thanks~

java.io.File list non-english filename

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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我决定写一个列出所有文件和目录的程序，但我在处理非英语文件名时遇到了一个问题。问题是我的程序不能保证这些目录和文件名是英文的，如果一些文件名使用日语或中文字符，它会显示一些字符作为'?‘。J2SE提供了各种java.io.File list()函数：。但它似乎不处理非英语文件名。有没有人有同样的问题？我应该朝哪个方向寻...

问java.io.File列表非英语文件名
EN

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问java.io.File列表非英语文件名EN