eclipse GBK格式的项目转化为UTF-8(代码修改法)

public static void main(String[] args) {
        String srcDirPath = "C:\\Users\\src";   
        //转为UTF-8编码格式源码路径   
        String utf8DirPath = "D:\\src";   
                  
        //获取所有java文件   
        Collection<File> javaGbkFileCol =  FileUtils.listFiles(new File(srcDirPath), new String[]{"java"}, true);   
                  
        for (File javaGbkFile : javaGbkFileCol) {   
              //UTF8格式文件路径   
              String utf8FilePath = utf8DirPath+javaGbkFile.getAbsolutePath().substring(srcDirPath.length());   
               //使用GBK读取数据，然后用UTF-8写入数据   
              try {
                FileUtils.writeLines(new File(utf8FilePath), "UTF-8", FileUtils.readLines(javaGbkFile, "GBK"));
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }          
        }  
    }

需要用到commons-io-2.6.jar