javaIO流实现文件读写
文件写入:
InputStreamReader
BufferedReader
文件读取:
FileOutputStream
package javatest.basic22; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; public class IOReadTest { public static void main(String[] args) {
//写入文件路径 File f2=new File("c:/add44.txt");
//读取文件路径 File f=new File("c:/add.txt"); BufferedReader read=null; FileOutputStream fos=null; try {
//读取并解决中文乱码问题
//创建读取流 InputStreamReader isr = new InputStreamReader(new FileInputStream(f), "UTF-8");
//开始读取 read = new BufferedReader(isr);
//创建写入流 fos=new FileOutputStream(f2); String str=null; int line=1; while ((str=read.readLine())!=null) { System.out.println(str);
//循环写入 fos.write((str+"\t\n").getBytes()); line++; }
//关闭流对象 fos.flush(); fos.close(); read.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ if (read!=null) { try { fos.flush(); fos.close(); read.close(); } catch (IOException e) { e.printStackTrace(); } } } } }