修改合并mp3文件规则

src/main/java/com/mortals/xhx/tts/utils/AddMp3Util.java

 package com.mortals.xhx.tts.utils;
 
-import java.io.File;
-import java.io.IOException;
+import javax.sound.sampled.*;
+import java.io.*;
+import java.nio.ByteBuffer;
 import java.util.List;
 
 /**
@@ -10,26 +11,60 @@ import java.util.List;
  */
 
 public class AddMp3Util {
-    public static String mergeMp3s(List<String> inputFiles) {
-        String luJing = "/tmp/";
+
+    public static String mergeMp3s( List<String> inputFiles) throws IOException, UnsupportedAudioFileException, LineUnavailableException {
+        String outputFile = "/tmp/";
         if(System.getProperty("os.name").startsWith("Windows")){  //windows电脑测试路径
-            luJing= "F:\\\\";
+            outputFile= "F:\\\\";
         }
-        File f=new File(luJing);
-        f.mkdirs();
-        //生成处理后的文件
-        String outputFile = luJing+"new.mp3";
-        ProcessBuilder pb = new ProcessBuilder("sox");
-        pb.command().addAll(inputFiles);
-        pb.command().add(outputFile);
-
-        try {
-            Process process = pb.start();
-            process.waitFor();
-        } catch (IOException | InterruptedException e) {
-            e.printStackTrace();
+        File file = new File(outputFile+"new.mp3");
+        if (file.exists()) {
+            file.delete();
         }
 
+        AudioFormat format = null;
+        TargetDataLine targetLine = null;
+        SourceDataLine sourceLine = null;
+
+        // 获取混音所需的格式
+        for (String inputFile : inputFiles) {
+            AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(new File(inputFile));
+            if (format == null) {
+                format = audioInputStream.getFormat();
+            }
+            // 处理其他文件...
+        }
+
+        // 打开目标数据行用于输出
+        DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
+        targetLine = (TargetDataLine) AudioSystem.getLine(info);
+        targetLine.open(format);
+        targetLine.start();
+
+        // 打开源数据行用于输入
+        info = new DataLine.Info(SourceDataLine.class, format);
+        sourceLine = (SourceDataLine) AudioSystem.getLine(info);
+        sourceLine.open(format);
+        sourceLine.start();
+
+        // 将源数据行连接到目标数据行
+        AudioInputStream inputStream = new AudioInputStream(new SequenceInputStream(
+                new FileInputStream(inputFiles.get(0)),
+                new FileInputStream(inputFiles.get(1))),
+                format,
+                AudioSystem.NOT_SPECIFIED);
+
+        // 将inputStream的内容复制到targetLine
+        AudioSystem.write(inputStream, AudioFileFormat.Type.WAVE, new File(outputFile));
+
+        // 关闭线路和流
+        targetLine.stop();
+        targetLine.close();
+        sourceLine.stop();
+        sourceLine.close();
+        inputStream.close();
+
         return outputFile;
     }
+
 }