java读写txt
- 其他
- 2025-07-21 18:55:15

/** * 传入txt路径读取txt文件 * * @param txtPath * @return 返回读取到的内容 */ public String readTxt(String txtPath) { File file = new File(txtPath); if (file.isFile() && file.exists()) { try { FileInputStream fileInputStream = new FileInputStream(file); InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); StringBuffer sb = new StringBuffer(); String text = null; while ((text = bufferedReader.readLine()) != null) { sb.append(text); } return sb.toString(); } catch (Exception e) { e.printStackTrace(); } } return null; } /** * 使用FileOutputStream来写入txt文件 * * @param txtPath txt文件路径 * @param content 需要写入的文本 */ public void writeTxt(String txtPath, String content) { FileOutputStream fileOutputStream = null; File file = new File(txtPath); try { if (file.exists()) { //判断文件是否存在,如果不存在就新建一个txt file.createNewFile(); } fileOutputStream = new FileOutputStream(file); fileOutputStream.write(content.getBytes()); fileOutputStream.flush(); fileOutputStream.close(); } catch (Exception e) { e.printStackTrace(); } }
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