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request cannot be resolved. any imports missing??

Rohit Kumar
Ranch Hand

Joined: Jul 19, 2007
Posts: 35
Hi ,

I have this java class to upload files to a location on my local machine. when I used the same code with JSP it is wporking fine. If I use the same code with java class it is showing exceptions fpr request object like request cannot be resolved.
request.getContentType();
request.getInputStream()

Do i need to import anything.Do please suggest me





package oosurance.trans;

import java.io.*;


public class FileUpload{

String saveFile = "";
String contentType = request.getContentType();
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0))
{
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while (totalBytesRead < formDataLength)
{
byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
//String folder = "C:/upload/images/";
File folder = new File("C:/upload/images");
if (! folder.exists()) folder.mkdirs();

FileOutputStream fileOut = new FileOutputStream( folder.getCanonicalPath() + File.separatorChar + saveFile);

//out.print("Saved here: " + saveFile);
//fileOut.write(dataBytes);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();


}}}
Paul Sturrock
Bartender

Joined: Apr 14, 2004
Posts: 10336


request.getContentType();
request.getInputStream()

These are both methods of ServletRequest. You can't use them outside of a servlet container. If there is no request, you can't call any methods on it!

Why are you trying to "upload" file using a normal Java application? You could just use java.io to interact with the file system. What is it your are trying to do?


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subject: request cannot be resolved. any imports missing??