1回答

• 

  慕慕3760657

  2016-11-12 11:28:56

  import java.io.BufferedReader;

  import java.io.FileInputStream;

  import java.io.IOException;

  import java.io.InputStreamReader;

  import java.io.PrintWriter;

  
  

  public class BrAndBwOrPwDemo {

  public static void main(String[] args) throws IOException{

  //对文件进行读写操作 

  BufferedReader br = new BufferedReader(

  new InputStreamReader(

  new FileInputStream("e:\\javaio\\imooc.txt")));

  /*BufferedWriter bw = new BufferedWriter(

  new OutputStreamWriter(

  new FileOutputStream("e:\\javaio\\imooc3.txt")));*/

  PrintWriter pw = new PrintWriter("e:\\javaio\\imooc4.txt");

  //PrintWriter pw1 = new PrintWriter(outputStream,boolean autoFlush);

  String line ;

  while((line = br.readLine())!=null){

  System.out.println(line);//一次读一行，并不能识别换行

  /*bw.write(line);

  //单独写出换行操作

  bw.newLine();//换行操作

  bw.flush();*/

  pw.println(line);

  pw.flush();

  }

  br.close();

  //bw.close();

  pw.close();

  }

  
  

  }

  利用文件读写方式将其读取后包装到数据报或直接通过TCP进行数据传递

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