字节字符流

package com.dne;import java.io.BufferedReader;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.FileReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.io.OutputStreamWriter;import java.text.DateFormat;import java.util.Date;import com.dne.core.util.DateUtil;public class IBM_Thread {static int i = 0;public static void main(String args[]){new MyThread().run();i = 2;}public static class MyThread extends Thread{@Overridepublic void run() {// TODO Auto-generated method stubtry {DateFormat dateFormt = DateUtil.getCnDateFormat("yyyy-MM-dd HH:mm:ss SSS");System.out.println("--------inputStream--------\n\n\n");System.out.println("--------BufferedReader < inputStreamReader--------\n\n\n");{System.out.println("start:"+dateFormt.format(new Date()));//为了达到最高效率，可要考虑在 BufferedReader 内包装 InputStreamReaderBufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream("D:\\cn_visual_studio_2010.iso"), "UTF-8"));char[] ch= new char[1024*10]; StringBuffer sb = new StringBuffer();int result = -1;while((result = bufferedReader.read(ch))!=-1){sb.append(ch, 0, result);sb.reverse();}bufferedReader.close();//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));System.out.println("end:"+dateFormt.format(new Date()));}System.out.println("--------FileReader--------\n\n\n\n");{System.out.println("start:"+dateFormt.format(new Date()));//FileReader 用于读取字符流。要读取原始字节流,请考虑使用 FileInputStreamFileReader fileReader = new FileReader("D:\\cn_visual_studio_2010_ultimate_x86_dvd_532347.iso");StringBuffer sb = new StringBuffer();char[] ch = new char[1024*10];int result = -1;while((result = fileReader.read(ch))!=-1){sb.append(ch, 0, result);sb.reverse();}//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));System.out.println("end:"+dateFormt.format(new Date()));}System.out.println("--------inputStreamReader--------\n\n\n");{System.out.println("start:"+dateFormt.format(new Date()));//InputStreamReader 类是字节到字符的转化桥梁InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream("D:\\cn_visual_studio_2010.iso"), "UTF-8");char[] ch= new char[1024*10]; StringBuffer sb = new StringBuffer();int result = -1;while((result = inputStreamReader.read(ch))!=-1){sb.append(ch, 0, result);sb.reverse();}inputStreamReader.close();//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));System.out.println("end:"+dateFormt.format(new Date()));}System.out.println("--------outputStream--------\n\n\n");{System.out.println("start:"+dateFormt.format(new Date()));OutputStream outputStream = new FileOutputStream("C:\\input__.xml");char[] ch = new char[1024*10];OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream("C:\\input.xml"), "UTF-8");int result = -1;while((result = inputStreamReader.read(ch))!=-1){outputStreamWriter.write(ch, 0, result);}outputStreamWriter.close();inputStreamReader.close();outputStreamWriter.close();System.out.println("end:"+dateFormt.format(new Date()));}} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}};}