Linux 将 cp-1252 编码为 utf-8？
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Encoding cp-1252 as utf-8?
提问by IAmYourFaja
I am trying to write a Java app that will run on a linux server but that will process files generated on legacy Windows machines using cp-1252 as the character set. Is there anyway to encode these files as utf-8 instead of the cp-1252 it is generated as?
我正在尝试编写一个 Java 应用程序，该应用程序将在 linux 服务器上运行，但它将使用 cp-1252 作为字符集处理在旧版 Windows 机器上生成的文件。无论如何将这些文件编码为utf-8而不是生成的cp-1252？
回答by Eric Grunzke
You can read and write text data in any encoding that you wish. Here's a quick code example:
您可以按照您希望的任何编码读取和写入文本数据。这是一个快速的代码示例：
public static void main(String[] args) throws Exception
{
// List all supported encodings
for (String cs : Charset.availableCharsets().keySet())
System.out.println(cs);
File file = new File("SomeWindowsFile.txt");
StringBuilder builder = new StringBuilder();
// Construct a reader for a specific encoding
Reader reader = new InputStreamReader(new FileInputStream(file), "windows-1252");
while (reader.ready())
{
builder.append(reader.read());
}
reader.close();
String string = builder.toString();
// Construct a writer for a specific encoding
Writer writer = new OutputStreamWriter(new FileOutputStream(file), "UTF8");
writer.write(string);
writer.flush();
writer.close();
}
If this still 'chokes' on read, see if you can verify that the the original encoding is what you think it is. In this case I've specified windows-1252, which is the java string for cp-1252.
如果这在读取时仍然“窒息”，请查看您是否可以验证原始编码是否与您认为的一样。在本例中，我指定了 windows-1252，它是 cp-1252 的 java 字符串。
回答by Joni
If the file names as well as content is a problem, the easiest way to solve the problem is setting the localeon the Linux machine to something based on ISO-8859-1rather than UTF-8. You can use locale -ato list available locales. For example if you have en_US.iso88591you could use:
如果文件名和内容都有问题，解决问题的最简单方法是将localeLinux 机器上的设置为基于ISO-8859-1而不是UTF-8. 您可以使用locale -a来列出可用的语言环境。例如，如果你有en_US.iso88591你可以使用：
export LANG=en_US.iso88591
This way Java will use ISO-8859-1 for file names, which is probably good enough. To run the Java program you still have to set the file.encodingsystem property:
这样 Java 将使用 ISO-8859-1 作为文件名，这可能已经足够了。要运行 Java 程序，您仍然需要设置file.encoding系统属性：
java -Dfile.encoding=cp1252 -cp foo.jar:bar.jar blablabla
If no ISO-8859-1 locale is available you can generate one with localedef. Installing it requires root access though. In fact, you could generate a locale that uses CP-1252, if it is available on your system. For example:
如果没有可用的 ISO-8859-1 语言环境，您可以使用localedef. 但是安装它需要root访问权限。事实上，您可以生成一个使用 CP-1252 的语言环境，如果它在您的系统上可用的话。例如：
sudo localedef -f CP1252 -i en_US en_US.cp1252
export LANG=en_US.cp1252
This way Java should use CP1252 by default for all I/O, including file names.
这样，Java 应该默认为所有 I/O 使用 CP1252，包括文件名。
Expanded further here: http://jonisalonen.com/2012/java-and-file-names-with-invalid-characters/
在此处进一步扩展：http: //jonisalonen.com/2012/java-and-file-names-with-invalid-characters/
