java实现酷狗音乐临时缓存文件转换为MP3文件的方法

package com.zhou.run;import java.io.File;import java.util.HashMap;import java.util.Map;public class KugouTempFileToMp3AndModifyNameToTrueName {  public static String KGTEMP = ".kgtemp";  public static String KRC = "krc";  public void Change(String tempPath, String krcPath) {    File temp = new File(tempPath);    File krc = new File(krcPath);    if (temp.exists() && temp.getName().endsWith(KGTEMP)) {      String filename = temp.getName();      String filemd5 = filename          .substring(0, filename.lastIndexOf(KGTEMP));      if (!krc.exists())        return;      String krcname = krc.getName();      String krcmd5 = krcname.substring(krcname.lastIndexOf("-") + 1,          krcname.lastIndexOf(KRC) - 1);      String mp3name = krcname.substring(0, krcname.lastIndexOf("-"));      if (krcmd5.equals(filemd5)) {        String path = temp.getPath().substring(0,            temp.getPath().lastIndexOf("//"));        File mp3File = new File(path + "//" + mp3name + ".mp3");        temp.renameTo(mp3File);      }      System.out.println(filename + " " + filemd5);      System.out.println(krcname + " " + mp3name + " " + krcmd5);    }  }  public void ChangeByDir(String tempPath,String krcPath){    Map<String,File> temps = fileMd5Map(tempPath);    Map<String,String> mp3Names = krcNameMd5Map(krcPath);    for(String key :temps.keySet()){      File f = temps.get(key);      if(f.exists()){        String path = f.getPath().substring(0,            f.getPath().lastIndexOf("//"));        String mp3Name = mp3Names.get(key);        File mp3File = new File(path + "//" + mp3Name + ".mp3");        if(f.renameTo(mp3File)){          System.out.println(f.getName()+" to "+mp3File.getName());          System.err.print("  SUCCESS");        }      }    }  }  public Map<String, File> fileMd5Map(String path) {    File dirFile = new File(path);    Map<String, File> map = null;    if (dirFile.isDirectory()) {      map = new HashMap<String, File>();      for (File f : dirFile.listFiles()) {        if (f.exists()&&f.isFile()&& f.getName().endsWith(KGTEMP)) {          String filename = f.getName();          String filemd5 = filename.substring(0,              filename.lastIndexOf(KGTEMP));          map.put(filemd5, f);        }      }    }    return map;  }  public Map<String,String> krcNameMd5Map(String path){    File dirFile = new File(path);    Map<String, String> map = null;    if (dirFile.isDirectory()) {      map = new HashMap<String, String>();      for (File f : dirFile.listFiles()) {        if (f.exists()&&f.isFile()&& f.getName().endsWith(KRC)) {          String krcname = f.getName();          if(!krcname.contains("-"))continue;          String krcmd5 = krcname.substring(krcname.lastIndexOf("-") + 1,              krcname.lastIndexOf(KRC) - 1);          String mp3name = krcname.substring(0, krcname.lastIndexOf("-"));          map.put(krcmd5, mp3name);        }      }    }    return map;  }}public static void main(String[] args) {    KugouTempFileToMp3AndModifyNameToTrueName ktf = new KugouTempFileToMp3AndModifyNameToTrueName();    /*String tempPath = "D:/KuGou/mp3/2fad259e357078e89404be12e1fd7ae3.kgtemp";    String krcPath ="D:/KuGou/Lyric/周杰伦、袁咏琳 - 怎么了-2fad259e357078e89404be12e1fd7ae3.krc";    ktf.Change(tempPath,krcPath);*/    String tempDir ="D:/KuGou/mp3";    String krcDir="D:/KuGou/Lyric";    ktf.ChangeByDir(tempDir, krcDir);}