how to list the uploaded files in jsp

i tied the code but is flagging the message that the directory does not exist or invalid if i pass the file name or the path of the file . the code is as follows try

{

// the directory where the uploaded file will be saved.

String savePath ="//home//trainee//ashutosh//project//uploadedfiles//";

String filename = "";

ServletInputStream in = request.getInputStream();

byte[] line = new byte[128];

int i = in.readLine(line, 0, 128);

int boundaryLength = i - 2;

String boundary = new String(line, 0, boundaryLength);

//-2 discards the newline character

while (i != -1) {

String newLine = new String(line, 0, i);

if (newLine.startsWith("Content-Disposition: form-data; name=\""))

{

String s = new String(line, 0, i-2);

int pos = s.indexOf("filename=\"");

if (pos != -1)

{

String filepath = s.substring(pos+10, s.length()-1);

pos = filepath.lastIndexOf("\\");

if (pos != -1)

filename = filepath.substring(pos + 1);

else

filename = filepath;

}

//this is the file content

i = in.readLine(line, 0, 128);

i = in.readLine(line, 0, 128);

// blank line

i = in.readLine(line, 0, 128);

ByteArrayOutputStream buffer = new ByteArrayOutputStream();

newLine = new String(line, 0, i);

while (i != -1 && !newLine.startsWith(boundary)) {

buffer.write(line, 0, i);

i = in.readLine(line, 0, 128);

newLine = new String(line, 0, i);

}

try {

// save the uploaded file

RandomAccessFile f = new RandomAccessFile(

savePath + filename, "rw");

byte[] bytes = buffer.toByteArray();

f.write(bytes, 0, bytes.length - 2);

f.close();

}

catch (Exception e) {}

}

i = in.readLine(line, 0, 128);

} // end while

out.println("

");

out.println("The file named"+ " " +filename+" "+ "is successfully uploaded");

File dir = new File(:);

String[] chld = dir.list();

if(chld == null)

{

out.println("Specified directory does not exist or is not a directory.");

}

else

{

for(int a = 0; a < chld.length; i++)

{

String fileName[] = chld;

out.println(fileName);

}

}

}

joshiashutosha at 2007-7-12 10:13:41 >