1.FileReader不能一行行读

1         FileReader fr = null; 2         try { 3             fr = new FileReader(new File(path)); 4             StringBuffer stringBuffer = new StringBuffer(); 5             int ch; 6             while ((ch = fr.read()) != -1) { 7                 stringBuffer.append(ch); 8             } 9             System.out.println(stringBuffer);10         } catch (Exception e) {11             e.printStackTrace();12         } finally {13             IOUtils.close(fr);//关闭流14         }

 

2.BufferedReader可以一行行地读

1         BufferedReader br = null; 2         try { 3             br = new BufferedReader(new FileReader(new File(path))); 4             StringBuffer stringBuffer = new StringBuffer(); 5             String line; 6             while ((line = br.readLine()) != null) { 7                 stringBuffer.append(line); 8 　　　　　　　　　 } 9             System.out.println(stringBuffer);10         } catch (Exception e) {11             e.printStackTrace();12         } finally {13             IOUtils.close(br);//关闭流14         }