gistfile1.txt

package com.oxerr.sandbox;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;

public class URLEncode {

	public static void main(String[] args) throws UnsupportedEncodingException {
		final String pythonEncoded = "RIFF%AC%89%03%00WAVEfmt+";

		final String original = URLDecoder.decode("RIFF%C2%AC%C2%89%03%00WAVEfmt+", StandardCharsets.UTF_8.name());
		System.out.println(original);

		final String iso_8859_1 = URLEncoder.encode(original, StandardCharsets.ISO_8859_1.name());
		System.out.println(iso_8859_1);

		System.out.println(pythonEncoded.equals(iso_8859_1));

		// 结论：
		// Python 使用了 iso-8859-1 charset
		// Java 使用了 UTF-8 charset
		// 导致了楼主在 Python 和 Java 中得到了不同的结果
	}

}