Retain Uploaded File

package uploadApp;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.*;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.*;

import org.apache.commons.fileupload.disk.DiskFileItemFactory;

import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class UseFileUpload extends HttpServlet{

private static final long serialVersionUID = 1;

public void doPost(HttpServletRequest req, HttpServletResponse res) {

try{

//Check that we have a file upload request

boolean isMultipart = ServletFileUpload.isMultipartContent(req);

if(isMultipart){

//Create a factory for disk-based file items

DiskFileItemFactory factory = new DiskFileItemFactory();

//Set factory constraints

factory.setSizeThreshold(10*1024*1024);

factory.setRepository(new File("C:\\Program Files\\Apache Software Foundation\\Tomcat 5.5\\webapps\\UploadGui\\store"));

//Create a new file upload handler

ServletFileUpload upload = new ServletFileUpload(factory);

//Set overall request size constraint

upload.setSizeMax(10*1024*1024);

//Parse the request

List /* FileItem */ items = upload.parseRequest(req);

//Process the uploaded items

Iterator iter = items.iterator();

while (iter.hasNext()) {

FileItem item = (FileItem) iter.next();

if (item.isFormField()) {

//Process a regular form field

String name = item.getFieldName();

System.out.println("Name of the input text field is" + name);

String value = item.getString();

System.out.println("Input text is" + value);

}

else {

//Process a file upload

String fieldName = item.getFieldName();

System.out.println("Field Name " + fieldName);

String fileName = item.getName();

/*

//Tokenize the Filename string to get the last part

String[] result = fileName.split("\\s");

int i = result.length;

String real_filename = result[i -1];

*/

System.out.println("FileName is" + fileName);

String contentType = item.getContentType();

System.out.println("Content type is " + contentType);

boolean isInMemory = item.isInMemory();

if(isInMemory){

System.out.println("Item is in memory");

/*

//Copy the file(any format) stored in memory into a designated location

File fin = new File("C:\\Program Files\\Apache Software Foundation\\Tomcat 5.5\\webapps\\UploadGui\\store\\real_filename");

File fout = new File("C:\\Program Files\\Apache Software Foundation\\Tomcat 5.5\\webapps\\UploadGui\\real\\real_filename");

InputStream in = new FileInputStream(fin);

OutputStream out = new FileOutputStream(fout);

byte[] buf = new byte[1024];

int len;

while ((len = in.read(buf)) > 0) {

out.write(buf, 0, len);

}

in.close();

out.close();

*/

}

long sizeInBytes = item.getSize();

System.out.println("Size of the item is" + sizeInBytes);

}

}

}

}catch(Exception e){

e.printStackTrace();

}

}

}

subhashmedhia at 2007-7-29 16:34:25 >

you can use the below code

String contentType = request.getContentType();

if(null != contentType && contentType.toLowerCase().startsWith("multipart")){

try{

File mkd=null;

mkd=new File("your path");

mkd.mkdirs();

MultipartRequest multi=new MultipartRequest(request,"your path");

}

catch(Exception e)

{}

}

deepagangaa at 2007-7-29 16:34:25 >

> > catch(Exception e) {}

>

> Sure.

:)

kajbja at 2007-7-29 16:34:25 >

> What could be the reasons for such an output?

What do you think?

java.io.FileNotFoundException: C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\UploadGui\real\real_filename (The system cannot find the path specified)

kajbja at 2007-7-29 16:34:25 >

<form action="urservlet" enctype="multipart/form-data" name="" method="POST">

<input type="file" name="filename" />

<input type="submit" name="Submit" value="Submit" />

</form>

here "filename" is the temperarily file name of the file uploading ,use this name in the servlet what i send the code early.

put the cos.jar file in the library folder

deepagangaa at 2007-7-29 16:34:25 >