File copy
Hi,
Following is a program to copy directory and files. Program works fine if i copy the directory (subdirectories and files inside are also copied). But if the source is a file instead of directory i get the following error:
java.io.FileNotFoundException: D:\Thanuja\test (Access is denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at CopyFile.copyFile(CopyFile.java:55)
at CopyFile.copyDirectory(CopyFile.java:27)
at CopyFile.main(CopyFile.java:44)
import java.nio.*;
import java.nio.channels.*;
import java.io.*;
publicclass CopyFile
{
// Copies all files under srcDir to dstDir.
// If dstDir does not exist, it will be created.
publicvoid copyDirectory(File srcDir, File dstDir)throws IOException
{
//System.out.println("Inside");
if (srcDir.isDirectory())
{
if (!dstDir.exists()){
dstDir.mkdir();
}
String[] children = srcDir.list();
for (int i=0; i<children.length; i++){
copyDirectory(new File(srcDir, children[i]),
new File(dstDir, children[i]));
}
}else{
copyFile(srcDir, dstDir);
}
}
publicstaticvoid main(String args[])
{
// File srcDir=new File("D:/Thanuja/Samples/"); //To copy directory -- this works well
File srcDir=new File("D:/Thanuja/ToolTip.jsp");//To copy file
if(srcDir.isDirectory())
System.out.println("Dirchk");
elseif(srcDir.isFile())
System.out.println("Filechk");
File dstDir=new File("D:/Thanuja/test/");
CopyFile cp=new CopyFile();
try{
cp.copyDirectory(srcDir,dstDir);
}catch (IOException ex){
ex.printStackTrace();
}
}
privatevoid copyFile(File srcDir, File dstDir)throws FileNotFoundException, IOException{
//System.out.println("dstDir:"+dstDir);
InputStream in =new FileInputStream(srcDir);
OutputStream out =new FileOutputStream(dstDir);
// Transfer bytes from in to out
byte[] buf =newbyte[1024];
int len;
while ((len = in.read(buf)) > 0)
{
out.write(buf, 0, len);
}
in.close();
out.close();
}
}
