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Java 播放已解码的MP3文件_Java_Encoding_Base64 - Fatal编程技术网

Java 播放已解码的MP3文件

Java 播放已解码的MP3文件,java,encoding,base64,Java,Encoding,Base64,我正在尝试将base64编码为一个mp3文件,将其保存到数据库,然后稍后检索并解码并播放该文件。我已经输入了以下代码,但它似乎不起作用。我能做些什么来让它工作 import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import

我正在尝试将base64编码为一个mp3文件,将其保存到数据库,然后稍后检索并解码并播放该文件。我已经输入了以下代码,但它似乎不起作用。我能做些什么来让它工作

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javazoom.jl.player.Player;

import org.apache.commons.codec.binary.Base64;

public class ReadAudioFile {
    public static void main(String[] args) throws Exception {
        String file = "C:\\Users\\Mukkra01\\Downloads\\apple.mp3";
        InputStream byteInputStream = new FileInputStream(file);
        System.out.println(Base64.encodeBase64(inputStreamToByteArray(byteInputStream)));
        byte[] decodeFile = Base64.decodeBase64(Base64.encodeBase64(inputStreamToByteArray(byteInputStream)));
        play(decodeFile);
    }

    public static byte[] inputStreamToByteArray(InputStream inStream) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buffer = new byte[8192];
        int bytesRead;
        while ((bytesRead = inStream.read(buffer)) > 0) {
            baos.write(buffer, 0, bytesRead);
        }
        return baos.toByteArray();
    }

    public static void play(byte[] decodeFile) {
        try {
            ByteArrayInputStream byteInputStream = new ByteArrayInputStream(decodeFile);
            //BufferedInputStream buffer = new BufferedInputStream(new FileInputStream("C:\\Users\\Mukkra01\\Downloads\\apple.mp3"));
            Player player = new Player(byteInputStream);
            player.play();
        } catch (Exception e) {
            System.out.println(e);
        }

    }
}

尝试对文本文件进行编码/解码。如果这样做有效,您的问题在于MP3播放。如果它不起作用,那么你知道你的问题是反转换与转换不匹配。