import java.io.*; public class BufferReaderTest { public static void main(String[] args){ FileReader fr = null; BufferedReader br = null; BufferedWriter bw = null; FileWriter fw = null; try{ fr = new FileReader("D:\\common.php"); fw = new FileWriter("D:\\common_bak.php"); br = new BufferedReader(fr); bw = new BufferedWriter(fw); String strlin = ""; while((strlin = br.readLine()) != null){ System.out.println(strlin); bw.write(strlin+"\r\n"); bw.flush(); } System.out.print("打印完成"); }catch (FileNotFoundException e){ e.printStackTrace(); }catch (IOException e){ e.printStackTrace(); }finally { try{ fr.close(); br.close(); fw.close(); bw.close(); }catch (Exception e){ e.printStackTrace(); } } } }
java BufferedWriter读取时需要刷新缓存区
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