将UTF-8 Unicode字符串转换为ASCII Unicode字符串。
[英]Convert UTF-8 Unicode string to ASCII Unicode escaped String
I need to convert unicode string to string which have non-ascii characters encoded in unicode. For example, string "漢字 Max" should be presented as "\u6F22\u5B57 Max".
我需要将unicode字符串转换为字符串，该字符串具有unicode编码的非ascii字符。例如,字符串“漢字马克斯”应视为“\ u6F22 \ u5B57 Max”。
What I have tried:
我已经尝试:
Differenct combinations of
不同的组合
new String(sourceString.getBytes(encoding1), encoding2)
新的字符串(sourceString.getBytes(encoding1)、encoding2)
Apache StringEscapeUtils which escapes also ascii chars like double-quote
Apache StringEscapeUtils也是ascii字符，比如双引号。
StringEscapeUtils.escapeJava(source)
StringEscapeUtils.escapeJava(源)
Is there an easy way to encode such string? Ideally only Java 6 SE or Apache Commons should be used to achieve desired result.
有没有一种简单的方法来编码这样的字符串?理想情况下，应该使用Java 6 SE或Apache Commons来实现预期的结果。
2 个解决方案
#1
5
This is the kind of simple code Jon Skeet had in mind in his comment:
这是Jon Skeet在他的评论中想到的简单代码:
final String in = "šđčćasdf";
final StringBuilder out = new StringBuilder();
for (int i = 0; i < in.length(); i++) {
final char ch = in.charAt(i);
if (ch <= 127) out.append(ch);
else out.append("\\u").append(String.format("%04x", (int)ch));
}
System.out.println(out.toString());
As Jon said, surrogate pairs will be represented as a pair of \u escapes.
就像Jon说的，代理配对将被表示成一对\u转义。
#2
0
Guava Escaper Based Solution:
This escapes any non-ASCII characters into Unicode escape sequences.
这将从非ascii字符转成Unicode转义序列。
import static java.lang.String.format;
import com.google.common.escape.CharEscaper;
public class NonAsciiUnicodeEscaper extends CharEscaper
{
@Override
protected char[] escape(final char c)
{
if (c >= 32 && c <= 127) { return new char[]{c}; }
else { return format("\\u%04x", (int) c).toCharArray(); }
}
}
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