java移动/赋值文件 copy/move file

 public class FileAccess
 {

  public static boolean Move(File srcFile, String destPath)
  {
         // Destination directory
         File dir = new File(destPath);

         // Move file to new directory
         boolean success = srcFile.renameTo(new File(dir, srcFile.getName()));

         return success;
     }

  public static boolean Move(String srcFile, String destPath)
  {
         // File (or directory) to be moved
         File file = new File(srcFile);

         // Destination directory
         File dir = new File(destPath);

         // Move file to new directory
         boolean success = file.renameTo(new File(dir, file.getName()));

         return success;
     }

  public  static   void     Copy(String     oldPath,     String     newPath)
    {
           try     {
                   int     bytesum     =     0;
                   int     byteread     =     0;
                   File     oldfile     =     new     File(oldPath);
                   if     (oldfile.exists())     {
                           InputStream     inStream     =     new     FileInputStream(oldPath);
                           FileOutputStream     fs     =     new     FileOutputStream(newPath);
                           byte[]     buffer     =     new     byte[1444];
                           int     length;
                           while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {
                                   bytesum     +=     byteread;
                                   System.out.println(bytesum);
                                   fs.write(buffer,     0,     byteread);
                           }
                           inStream.close();
                   }
           }
           catch     (Exception     e)     {
                   System.out.println( "error  ");
                   e.printStackTrace();
           }
     }
    public   static  void     Copy(File     oldfile,     String     newPath)
    {
           try     {
                   int     bytesum     =     0;
                   int     byteread     =     0;
                   //File     oldfile     =     new     File(oldPath);
                   if     (oldfile.exists())     {
                           InputStream     inStream     =     new     FileInputStream(oldfile);
                           FileOutputStream     fs     =     new     FileOutputStream(newPath);
                           byte[]     buffer     =     new     byte[1444];
                           while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {
                                   bytesum     +=     byteread;
                                   System.out.println(bytesum);
                                   fs.write(buffer,     0,     byteread);
                           }
                           inStream.close();
                   }
           }
           catch     (Exception     e)     {
                   System.out.println( "error  ");
                   e.printStackTrace();
           }
     }
 }

自己做了个demo

 import java.io.*;
 public class FileAccess {
  public  static   void     Copy(String     oldPath,     String     newPath)
        {
               try     {
                       int     bytesum     =     0;
                       int     byteread     =     0;
                       File    oldfile     =     new     File(oldPath);
                       if     (oldfile.exists())     {
                               InputStream     inStream     =     new     FileInputStream(oldPath);
                               FileOutputStream     fs     =     new     FileOutputStream(newPath);
                               byte[]     buffer     =     new     byte[1444];
                               int     length;
                               while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {
                                       bytesum     +=     byteread;
                                       System.out.println(bytesum);
                                       fs.write(buffer,     0,     byteread);
                               }
                               inStream.close();
                       }
               }
               catch     (Exception     e)     {
                       System.out.println( "error  ");
                       e.printStackTrace();
               }
         }    

     public static void main(String argv[]){
       String oldfile = "C:\\aa.txt";
       String newPath = "D:\\bb.txt";
      Copy( oldfile, newPath);
     }
 }