根据内容生成文件

    /**
     * 根据内容生本文件
     *
     * @param filePath      本地路径
     * @param scriptContent 内容
     * @author YangYudi
     * @date 2021/1/8 17:16
     */
    public static void writerFile(String filePath, String scriptContent) {
        //生成脚本 false表示不追加
        try (Writer writer = new FileWriter(filePath, false);
             BufferedWriter bufferedWriter = new BufferedWriter(writer)) {
            bufferedWriter.write(scriptContent);
            bufferedWriter.flush();
            writer.flush();
        } catch (IOException e) {
            log.error(e.getMessage());
        }
    }

根据输入流生成文件

    public void inputStreamToFile(InputStream inputStream) {
        try {
            //新建文件
            File file = new File("demo.docx");
            if (file.exists()) {
                file.createNewFile();
            }
            OutputStream os = new FileOutputStream(file);
            int read = 0;
            byte[] bytes = new byte[1024 * 1024];
            //先读后写
            while ((read = inputStream.read(bytes)) > 0) {
                byte[] wBytes = new byte[read];
                System.arraycopy(bytes, 0, wBytes, 0, read);
                os.write(wBytes);
            }
            os.flush();
            os.close();
            inputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }