java缓冲字节流复制文件，逐个字节读取、写入

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package cwj.bbb;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;class StreamTest{public static void main(String[] args) throws IOException{/*把路径下的文件/home/cwjy1202/hadoop/javaTest/input01.txt * 以字节缓冲输出流的方式复制到/home/cwjy1202/hadoop/javaTest/input013.txt * */File file = new File("/home/cwjy1202/hadoop/javaTest/input01.txt");InputStream bis = new BufferedInputStream(new FileInputStream(file));OutputStream bos = new BufferedOutputStream(new FileOutputStream("/home/cwjy1202/hadoop/javaTest/input013.txt"));//逐个字节读取int len = bis.read();while(-1 != len){//逐个字节写入bos.write(len);len = bis.read();}//强制把缓冲区的数据输出bos.flush();bos.close();bis.close();}}

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