Servlet executing a lot of actions

I have a client (applet)
I have a server (servlet based)
my servlet is supposed to take a long time
to execute (10 mins)
the client do a request but the connexion is lost 'cause
it's to long
My first idea was to create a thread from the servlet. THe servlet answers as soon as it has launched the thread. A pooling function (client side) could ask the servlet if the thread is finished or not.
Is it possible? Any one has some sample code?
Or maybe someone has another Idea or did something else?
Thanx

pretty interesting idea. but do u want the whole result of the servlet action at once. cos if u dont want it to be that way u could keep on feeding the client when data is ready and allow the servlet to do the execution in another thread. i've done such functionality before which the applet is initially loaded with a set of results from the servlet and then the servlet keeps on feeding the client in a seperate thread. unfortunately i dont have any sample code that i could help u with. but it is definetly possible

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Hi,
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Error screen:
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End action will not execute because of end action on the final chapter point

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http://tv.adobe.com/watch/learn-encore-cs4/creating-an-event-dvd/
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Hi Johnny,
I had a similar requirement. In my case I had to trigger a validation from an action.
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Message was edited by:
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i am using macbook pro running Lion
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***issue*****
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Servlet executes only once, the first time???

Hello evrybody,
I'll try to be specific regarding the problem. I have an HTML file called Login.html. When I click on this file, a page opens allowing the user to enter his/her username and password. So, I compiled my servlet and I clicked on the Login.html file. I entered some existing username/password combination and the new page opened saying "Login Succesful!". I then close that page and go and click on Login.html again. This time I enter some username/password combination that is not existing in database and according to my servlet a new page is supposed to be opened with a message saying "The username and password you provided are not valid. Please register first!". But, what happenes is that a blank new page is opened with no message (also same thing would happen even if I provided the valid username/password combination). What could cause this? I tried to put rs.close() in the code (rs is reference to a ResultSet object) but it does not make any difference. Can anyone give me a clue about what might be causing this strange behavior? Thanks in advance,Jimmy.
The code for my servlet is provided below:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.*;
import java.io.PrintWriter;
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               throw new UnavailableException("Unavailable to connect to: "+dbURL);
          catch (Exception e) {
               throw new UnavailableException("Error: "+e);
     public void doPost(HttpServletRequest request,
                         HttpServletResponse response) throws IOException {
          try {
                    PrintWriter out=response.getWriter();
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                         rs.close();
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                         out.println("</HEAD>");
                         out.println("<BODY>");
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I solved the problem by using destroy() method instead of finally block. Thanks,anyway,Jimmy.

Servlet executes only once!!!

Hello evrybody,
I'll try to be specific regarding the problem. I have an HTML file called Login.html. When I click on this file, a page opens allowing the user to enter his/her username and password. So, I compiled my servlet and I clicked on the Login.html file. I entered some existing username/password combination and the new page opened saying "Login Succesful!". I then close that page and go and click on Login.html again. This time I enter some username/password combination that is not existing in database and according to my servlet a new page is supposed to be opened with a message saying "The username and password you provided are not valid. Please register first!". But, what happenes is that a blank new page is opened with no message (also same thing would happen even if I provided the valid username/password combination). What could cause this? I tried to put rs.close() in the code (rs is reference to a ResultSet object) but it does not make any difference. Can anyone give me a clue about what might be causing this strange behavior? Thanks in advance,Jimmy.
The code for my servlet is provided below:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.*;
import java.io.PrintWriter;
public class LoginServlet extends HttpServlet {
String jdbcDriver="sun.jdbc.odbc.JdbcOdbcDriver";
String dbURL="jdbc:odbc:Schedule";
Connection dbConn=null;
public void init() throws ServletException {
try {
Class.forName(jdbcDriver).newInstance();
dbConn=DriverManager.getConnection(dbURL);
catch (ClassNotFoundException e) {
throw new UnavailableException("JDBC driver not found:"+jdbcDriver);
catch (SQLException e) {
throw new UnavailableException("Unavailable to connect to: "+dbURL);
catch (Exception e) {
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try {
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Statement stmt=dbConn.createStatement();
String username=request.getParameter("username");
String password=request.getParameter("password");
String sql="select UserName,Password from Personal_Info where Personal_Info.Username='"+username+"' AND Personal_Info.Password='"+password+"'";
ResultSet rs=stmt.executeQuery(sql);
if (rs.next()) {
out.println("<HTML><HEAD>");
out.println("<TITLE>Meeting Scheduling Page</TITLE>");
out.println("</HEAD>");
out.println("<BODY>");
out.println("<H2>Login Succesfull!</H2>");
out.println("</BODY></HTML>");
out.close();
rs.close();
else {
out.println("<HTML><HEAD>");
out.println("<TITLE>Please Register First</TITLE>");
out.println("</HEAD>");
out.println("<BODY>");
out.println("<H2>The username and password that you provided are not valid!</H2>");
out.println("<H2>Please enter the valid username and password or register first.</H2>");
out.println("</BODY></HTML>");
out.close();
rs.close();
catch(Exception e) {
e.printStackTrace();
finally {
try {
if (dbConn !=null) {
dbConn.close();
catch (SQLException ignored) {

I solved the problem by using destroy() method instead of finally block. Thanks,anyway,Jimmy.

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Hello,
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My contributions to the Developer Zone Community
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http://obiee101.blogspot.com/

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Hello Mark,
Does anyone else know this issue?
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1- RGB to CMYK
2- I just want to change the magenta and cyaan curves.
3- adjusting to 300 DPI.
4- save as JPG quality 12 ( same folder overwriting the existing image and then just cloose the image)
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activate
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tell application "Finder"
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open theFile
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tell docRef
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change mode docRef to CMYK
end if
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end if
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end repeat
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