Mohamad Salman

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since Jan 09, 2014

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Recent posts by Mohamad Salman

Naming.rebind

Hi,
im doing a simple login on server and everything was going fine, i started the RMI registry and the server was working fine, i test the code and i was able to login.
now i want to start putting the codes in method and doing more methods, but when i put the Naming.rebind("server", i); in the server to call methods in the client from the server it shows error and i dont know what to do.
this is the code of the server:

public class server2 extends UnicastRemoteObject implements interface2{
protected server2() throws RemoteException {
super();
// TODO Auto-generated constructor stub
}
public static void main(String argv[]) throws Exception{
try{
interface2 i = new server2();
Naming.rebind("server", i);
System.out.println("Serveur agendas pret");
}
catch (Exception e){
System.err.println("Error "+e.getMessage());
}
ServerSocket welcomeSocket = new ServerSocket(4003);
System.out.println("server 1");
Socket connectionSocket = welcomeSocket.accept();
System.out.println("server connected");
String Clientusername,Clientpassword;
String capitalizedSentence;
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
BufferedReader inFromClient1 =new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
Clientusername = inFromClient.readLine();
Clientpassword = inFromClient.readLine();
System.out.println("Received User Name: " + Clientusername);
System.out.println("Received Password: " + Clientpassword);
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (Exception e) {
System.err.println("Error Class.forName");
System.exit(1);
}
Connection cx =DriverManager.getConnection("jdbc:odbc:Agendas","admin","");
Statement st = cx.createStatement();
System.out.println("2");
String query="SELECT Nom, Password FROM User WHERE Nom='" + Clientusername + "' AND Password='" + Clientpassword + "'";
System.out.println("22");
ResultSet rs = st.executeQuery(query);
System.out.println("3");
while (rs.next()) {
String u = rs.getString("Nom");
String p = rs.getString("Password");
if (Clientusername.equals(u) && Clientpassword.equals(p)){
capitalizedSentence = "Welcome "+Clientusername+" \n";
outToClient.writeBytes(capitalizedSentence);
}else{
capitalizedSentence = "Sorry, not authorized \n";
outToClient.writeBytes(capitalizedSentence);
}
}
}
}

help please

10 years ago

Sockets and Internet Protocols