Here is how we did it , this can be implemented right away , you may have to
modify a little because I was passing data from a Java client app to a servlet ,
you may have to code it ot post from a JSP instead of a Java client app.
Alos my code copies the posted data into a file , you can eliminate that step
, because you just want the data to get there
1 . Java client app posts data to a 2. Upload Servlet
hope this helps
Santosh
1. Code for part one
import java.net.*;
import java.io.*;
public class HTTPPostClient
{
/*----------------------------------------------------------------------------
* usage
*---------------------------------------------------------------------------*/
private static void usage()
{
System.out.println("Usage: HTTPostClient file");
}
/*----------------------------------------------------------------------------
* main
*---------------------------------------------------------------------------*/
public static void main(String args[])
{
try
{
if (args.length != 1)
{
usage();
return;
}
// Get connection to Upload Servlet
URL theURL = new URL("http://localhost:8000/servlet/UploadServlet");
HttpURLConnection theConnection =
(HttpURLConnection)theURL.openConnection();
theConnection.setRequestProperty("Content-Type", "text/xml");
theConnection.setRequestMethod("POST");
theConnection.setDoOutput(true);
PrintWriter out = new PrintWriter(theConnection.getOutputStream());
// Read XML File
String fileContents = "";
String line = null;
FileReader f1 = new FileReader(args[0]);
BufferedReader theReader = new BufferedReader(f1);
// In your case you don't have to read data from a file to send it , you
may collect your data from
// a form , from the database ,or any other source of input
// Send each line to Servlet
while ((line = theReader.readLine()) != null)
{
System.out.println(line);
out.println(line);
}
out.close();
System.out.println("Data Written");
// Get Response
System.out.println("Response: ");
String inputLine;
InputStream in = theConnection.getInputStream();
BufferedReader responseReader =
new BufferedReader(new InputStreamReader(in));
while ((inputLine = responseReader.readLine()) != null)
{
System.out.println(inputLine);
}
in.close();
}
catch (Exception e)
{
System.out.println("Exception Caught:\n" + e);
}
}
}
2. Code for upload servlet
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
/*------------------------------------------------------------------------------
* Upload Servlet
*-----------------------------------------------------------------------------*/
public class UploadServlet extends HttpServlet
{(in));
/*----------------------------------------------------------------------------
* Data
* Modify directory to where you want to store uploaded files!
*---------------------------------------------------------------------------*/
private static String m_uploadDirectory = "\\upload";
/*----------------------------------------------------------------------------
* doGet
*---------------------------------------------------------------------------*/
public void doGet (HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
System.out.println("UploadServlet.doGet()");
// Set content type and other response header fields first
String title = "Simple Servlet Output";
response.setContentType("text/html");
// Write the data of the response
PrintWriter out = response.getWriter();
out.println("<HTML><HEAD><TITLE>");
out.println(title);
out.println("</TITLE></HEAD><BODY>");
out.println("<H1>" + title + "</H1>");
out.println("<P>This is output from UploadServlet");
out.println("</BODY></HTML>");
out.close();
}
/*----------------------------------------------------------------------------
* doPost
*---------------------------------------------------------------------------*/
public void doPost (HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
BufferedWriter uploadFile = null;
try
{
System.out.println("UploadServlet.doPost()");
System.out.println("CONTENT: " + request.getContentType());
System.out.println("LENGTH : " + request.getContentLength());
// Get the Input Stream
ServletInputStream input = request.getInputStream();
BufferedReader theReader =
new BufferedReader(new InputStreamReader(input));
// Create output file
String uploadFileName = m_uploadDirectory + '\\' + filename;
uploadFile = new BufferedWriter(new FileWriter(uploadFileName));
String line = null;
while ((line = theReader.readLine()) != null)
{
uploadFile.write(line);
uploadFile.newLine();
}
// Write the data of the response
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("OK");
out.close();
}
catch (Exception e)
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("ERROR\n:" + e);
out.close();
}
finally
{
if (uploadFile != null)
{
uploadFile.close();
}
}
}
}
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