java文件的拷贝,(特别为二进制文件)

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; /** * * <b>Application name:</b><br> * <b>Application describing:</b>文件的拷贝,(特别为二进制文件) <br> */ public class FileCopy { /** * * {主函数} * * @param args */ public static void main(String[] args) { String srcFilePath = "c:"+File.separator+"第03章变量_1.pdf"; String dstFilePath = "d:"+File.separator+"第03章变量_1.pdf"; InputStream is = null; OutputStream os = null; try { is = new FileInputStream(srcFilePath); os = new FileOutputStream(dstFilePath); int readLength; byte[] buf = new byte[1024]; while((readLength=is.read(buf, 0, buf.length))!=-1){ os.write(buf, 0, readLength); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block System.out.println("文件不存在"); e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block System.out.println("文件读取失败"); e.printStackTrace(); }finally{ if(is!=null){ try { is.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(os!=null){ try { os.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }