Khalil Salman

Change action=”org.HelloWorld” to action=”poi”. Because poi is the name of your HelloWorld servlet.

When using basic authentication, is there any way to change the user's password and make the new password available without restarting the server?

Alright. Now I see what you mean by saying "don't println to socket."
Don't use PrintWriter!..

Ulf, the link you gave for "don't println to socket" redirects me to somewhere else not to an article.
So please check it for future references.

Thank you guys anyway, the issue is resolved.

Here is the code, (maybe someone needs it in the future)

The server code:
ServerSocket server = new ServerSocket(1234); //open this port and listen while(true){ Socket socket = server.accept(); Thread handler=new Thread(new ResponseSender(socket)); handler.start(); }//end of while

server's response sender:
//read the request DataInputStream in=new DataInputStream(new BufferedInputStream(socket.getInputStream())); restId=in.readUTF(); System.out.print("Received id: "+restId+".\n"); //send a response DataOutputStream out= new DataOutputStream(socket.getOutputStream()); out.writeUTF(restId); in.close(); out.close(); } catch(UnknownHostException ukex) { System.out.print("Unknown host!\n"); } catch(NoRouteToHostException nrex) { System.out.print("Unreachable host!\n"); } catch(ConnectException cnex) { System.out.print("Connect refused!\n"); } catch(IOException ioex) { System.out.print("IO error occured...\n"+ioex.getMessage()); }

And the client:
String response; //create a fake id int lower=1, upper=5000; int restId = lower + (int) ( Math.random()*(upper - lower) ); try { Socket socket = new Socket("localhost", 1234); //send a request DataOutputStream out= new DataOutputStream(socket.getOutputStream()); out.writeUTF(Integer.toString(restId)); //read the response DataInputStream in=new DataInputStream(new BufferedInputStream(socket.getInputStream())); response=in.readUTF(); myLabel.setText(response); in.close(); out.close(); socket.close(); } catch(UnknownHostException ukex) { System.out.print("Unknown host!\n"); } catch(NoRouteToHostException nrex) { System.out.print("Unreachable host!\n"); } catch(ConnectException cnex) { System.out.print("Connect refused!\n"); } catch(IOException ioex) { System.out.print("IO error occured...\n"+ioex.getMessage()); }

Thank you guys.

Yeah I commented out println() parts and change the Runnable to Thread. And I replaced handler.run() with handler.start().
But nothing changed.

Something else should be missing. Something that I don't know but very critical.
Gosh 15-20 lines of code but I cannot get it working.

Hi,
the story:
Clients sends a request, server reads that request, and sends a response, lastly client reads the response.

There will be multiple clients so I tried to implement it using threads in the server code to be able to continue listening for new requests.
But in the last step the client freezes when I say read the response from the server. I mean the client sends a request successfully, and the server reads it and responses successfully but the client then cannot get the response; freezes.

Here is the code:

This is for the client:
String os=""; //create a fake id int lower=1, upper=5000; int restId = lower + (int) ( Math.random()*(upper - lower) ); try { Socket socket = new Socket("localhost", 1234); //Send a request PrintWriter out = new PrintWriter(socket.getOutputStream(), true); out.print(Integer.toString(restId)); //send the id out.flush(); //read the response BufferedReader in = new BufferedReader(new InputStreamReader( socket.getInputStream())); while(!in.ready()){} os=in.readLine(); //Here the freezing point myLabel.setText(os); //display the response in.close(); out.close(); socket.close(); } catch(Exception e) { System.out.print("Whoops! It didn't work!\n"); }

And here is the server:
try { ServerSocket server = new ServerSocket(1234); //open this port and listen while(true){ Socket socket = server.accept(); Runnable handler=new Thread(new ResponseSender(socket)); handler.run(); }//end of while }catch(Exception exc) { System.out.print("Whoops! It didn't work!\n"); }

And the server's response sender run() function:
String restId="",response="true\n"; try { //read the request BufferedReader in = new BufferedReader (new InputStreamReader(socket.getInputStream())); while (!in.ready()) {} // busy waiting until the id is completely ready restId = in.readLine(); // read the line System.out.print("Received rest id: "+restId); //send the response PrintWriter out = new PrintWriter(socket.getOutputStream(), true); out.print(response); //send the status System.out.println(" Response was sent "+ response+"\n"); out.flush(); out.close(); } catch(Exception exc){}

Thank you for any help..

I solve that issue by using <html:hidden> tag:

if it is:
<bean:write name="XXX" property='YYY">

then I put:
<html:hidden name="XXX" property="YYY"/>
next to it...

Hi Shai,
I got the same issue..

Did you solve that problem finally?

Thank you SAthish..
It also solved my problem...

What do you guys think about this solution?

Locale cLoc=request.getLocale();
Calendar cCal=Calendar.getInstance(cLoc);
TimeZone tz=cCal.getTimeZone();

I'm sorry guys but I've been fighting with this problem for last 3 days. No success.
But I just solved the problem.

In the beginning I had added jdbcsql4.jar as a jar file only..
But now I added a library to the project and I named that library as 'ms-jdbc'
Then I added jdbcsql4.jar to that new library which named ms-jdbc by me.

Strangely it worked out.

I just started with Java,
I'm using Netbeans 6.9.1 as IDE, MS-SqlServer 2008 R2 as database server, and Struts 1.3.1 as framework...
The problem is that I just keep getting this error:

java.lang.UnsupportedOperationException: Java Runtime Environment (JRE) version 1.6 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.

I downloaded the jdbc 3.0 from microsoft's web page. And I only added sqljdbc4.jar to my project. But strangely error message says that the driver you use is not supported by JDBC 4.0, so use sqljdbc4.jar.

Any idea?..
Any help would be really appreciated...