一行一行的读取文本内容
BufferedReader buf = null; String line = null; try { // buf = new BufferedReader(new FileReader(FINAL_PINTOHANZI_FILE)); buf = new BufferedReader(new InputStreamReader(new FileInputStream(filePath), "utf-8")); while((line = buf.readLine())!=null){ line = line.trim(); //去处空格 System.out.println(line) } } catch (IOException e) { e.printStackTrace(); }finally{ if(buf != null){ try { buf.close(); } catch (IOException e) { e.printStackTrace(); } } }一次性读取文本内容
按字节流方式先将文件都读入内存,再一次性编码转换是最快的方式
String charset = "utf-8"; File file = new File(filePath); long fileByteLength = file.length(); byte[] content = new byte[(int)fileByteLength]; FileInputStream fileInputStream = null; try { fileInputStream = new FileInputStream(file); fileInputStream.read(content); } catch (IOException e) { e.printStackTrace(); } finally { try { fileInputStream.close(); } catch (IOException e) { e.printStackTrace(); } } String str = null; try { str = new String(content,charset); System.out.println(str); } catch (UnsupportedEncodingException e) { e.printStackTrace(); }