code: private static void analyzeCorpus(String zipFile, String output, final String separator, final boolean includePhrase) throws IOException{
          File outputFile = new File(output);
          //准备输出目录
          if(!outputFile.getParentFile().exists()){
              outputFile.getParentFile().mkdirs();
          }
          try (FileSystem fs = FileSystems.newFileSystem(Paths.get(zipFile), ExtractText.class.getClassLoader());
                  BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFile),"utf-8"));) {
              for(Path path : fs.getRootDirectories()){                
                  LOGGER.info("处理目录："+path);
                  Files.walkFileTree(path, new SimpleFileVisitor<Path>(){
  
                      @Override
                      public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                          LOGGER.info("处理文件："+file);
                          // 拷贝到本地文件系统
                          Path temp = Paths.get("target/corpus-"+System.currentTimeMillis()+".txt");
                          Files.copy(file, temp, StandardCopyOption.REPLACE_EXISTING);
                          extractText(temp, writer, separator, includePhrase);
                          return FileVisitResult.CONTINUE;
                      }
                      
                  });
              }
          }
      }
docs: 分析语料库
  @param zipFile 压缩的语料库
  @param output 保存抽取出的文本的文件路径
  @param separator 词之间的分隔符
  @param includePhrase 是否抽取短语
  @throws IOException