public static String previewAudio(long fileId, String fileUrl, String fileName) {

     fileName = fileName.replaceAll(" ", "");

     String encoding = System.getProperty("file.encoding");// 此处是获取原有的编码方式

     String pathName = "";

     try {

         pathName = "/tmp/audio/" + fileId + "_"

         + new String(fileName.getBytes(encoding), "ISO8859-1");// 将pathName的编码转成ISO8859-1

         File file = new File(basePath + pathName);

         if (!file.exists()) {

             FileUtils.copyURLToFile(new URL(fileUrl), file);// 用的org.apache.commons.io.FileUtil

         }

     } catch (UnsupportedEncodingException e1) {

         e1.printStackTrace();

     } catch (MalformedURLException e) {

         e.printStackTrace();

     } catch (IOException e) {

         e.printStackTrace();

     }

     return pathName;

 }