I am quite curious how it is that you can not have access to the
server side stack trace. I suspect the answer to your question lies
there.
-Ben
On Mar 14, 7:04 am, Dilip Rathod <rathod...@gmail.com> wrote:
> I can gwt-rpc communication with server sucessfully.
> but when i want to interact with mysql I get following error
>
> com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:
> Could not create connection to database server.
>
> I added mysql connector to WEB-Inf/lib dierctory
>
> following is my code that tries to connect to data base
>
> public String login(String usr,String pwd)
> {
> Connection conn = null;
> String url = "jdbc:mysql://localhost:3306/
> SeekwadiDataBank";
> String db = "SeekwadiDataBank";
> String driver = "com.mysql.jdbc.Driver";
> String user = "user";
> String pass = "user";
> String connerr=null;
> try
> {
> connerr="Connecting ....";
> Class.forName(driver).newInstance();
> connerr+="Still Working....";
> //Class.forName("com.mysql.jdbc.Driver");
> conn = DriverManager.getConnection(url, user, pass);
> connerr="Conncted....";
> } catch (Exception e) {
> // TODO: handle exception
> connerr+=e.toString();
>
> }
> return connerr;
> }
>
> i cannot give full stack trace becuse it is not available at client
> side
>
> client side code taht communicate asynchronoulsy to server is
>
> Hyperlink login = new Hyperlink("Login", "Login");
> login.addClickListener(new ClickListener() {
> public void onClick(Widget widget)
> {
> hp.clear();
> final TextBox usr=new TextBox();
> final PasswordTextBox pwd=new PasswordTextBox();
>
> Button loginb=new Button("Login");
> loginb.addClickHandler(new ClickHandler()
> {
> public void onClick(ClickEvent event)
> { //Window.alert("Starts");
> AsyncCallback callback = new AsyncCallback()
> {
>
> public void onSuccess(Object result)
> {
> if(((String) result).equals("Ok"))
> { Window.alert("Login
> Status:"+result.toString());
> usr.setText(""); pwd.setText(""); }
> else { Window.alert("Login
> Status:"+result.toString()); usr.setText(""); pwd.setText(""); }
> }
> public void onFailure(Throwable caught)
> { Window.alert(caught.getMessage()); }
> };
> no.login(usr.getText(),pwd.getText(), callback);
> //Window.alert("Ends");
> }
>
> });
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