package 流; 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; public class 流 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub delDir("d://MyDrivers"); } public static void copyFile(String src,String dest){ try { InputStream inputStream=new FileInputStream(src); OutputStream outputStream=new FileOutputStream(dest); File file=new File(dest); if(!file.exists()) try { file.createNewFile(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } int ch; try { while((ch=inputStream.read())!=-1) { outputStream.write(ch); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void renameFile(String path,String oldname,String newname){ if(!oldname.equals(newname)){ File oldFile=new File(path+"/"+oldname); File newFile=new File(path+"/"+newname); if(newFile.exists()) { System.out.println("该文件已经存在"); } else { oldFile.renameTo(newFile); } } } public static void delDir(String path){ File dir=new File(path); if(dir.exists()){ File[] tmp=dir.listFiles(); for(int i=0; i<tmp.length; i++) { if(tmp[i].isDirectory()) { delDir(path+"/"+tmp[i].getName()); } else { tmp[i].delete(); } } } dir.delete(); } }
时间: 2024-10-17 08:24:03