Question

我有一个文本文件，它是ANSI编码，我必须将其转换为UTF8编码。

我的文字文件是这样的 Stochastic programming is an area of mathematical programming that studies how to model decision problems under uncertainty. For example, although a decision might be necessary at a given point in time, essential information might not be available until a later time.

Answer 1

您可以使用java.nio.charset.Charset类显式（windows-1252是ANSI的正确名称）：

public static void main(String[] args) throws IOException {
    Path p = Paths.get("file.txt");
    ByteBuffer bb = ByteBuffer.wrap(Files.readAllBytes(p));
    CharBuffer cb = Charset.forName("windows-1252").decode(bb);
    bb = Charset.forName("UTF-8").encode(cb);
    Files.write(p, bb.array());
}

如果您愿意，可以在一行中使用=）

Files.write(Paths.get("file.txt"), Charset.forName("UTF-8").encode(Charset.forName("windows-1252").decode(ByteBuffer.wrap(Files.readAllBytes(Paths.get("file.txt"))))).array());

Answer 2

ASCII字符子集映射到UTF8中的相同字符编码，因此该文件实际上不需要任何转换。

要以UTF-8输出文件，您可以使用：

PrintWriter out = new PrintWriter(new File(filename), "UTF-8");
out.print(text);
out.close();

Answer 3

你可以试试这个

InputStream inputStream = new BufferedInputStream(new FileInputStream("D:\\sample.txt"));
    Reader reader =
            new InputStreamReader(inputStream, Charset.forName("UTF-8"));

Answer 4

我不是专家，但找到了一个可以帮助您的链接：Converting a txt File from ANSI to UTF-8 programmatically

此处解释了与此相关的一些问题：http://www.drillio.com/en/software-development/java/encoded-string-too-long-64kb-limit/

我希望这会有所帮助。

如何在java中将ANSI转换为utf8？

4 个答案: