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Home » Eclipse Projects » Plugin Development Environment (PDE) » Error executing the plugin connection to the database
Error executing the plugin connection to the database [message #28969] Thu, 23 October 2008 17:44
raphael is currently offline raphaelFriend
Messages: 16
Registered: July 2009
Junior Member
Ola .. I am developing my first plugin ... (very good to do this, but a
little tricky), I am already several days trying to find the cause of the
error, I've done a lot and I can not get to my goal. The plugin is to just
do a test connection with some databases. Thus did a screen test for and
worked, however, when I put this screen to operate within the plugin does
not work. Posted the code responsible for that connection, it is not
possible to interpret, I understand, just show me where I can get my
references for this project.
The first error is classic: ClassNotFoundException
I believe that this error is responsible for others to mention.

- NativeMethodAccessorImpl.invoke0 (Method, Object, Object []) line: not
available [native method]

- DelegatingMethodAccessorImpl.invoke (Object, Object []) line: not
available

public class Conexao{
	public void conectar (String driver,String url, String usuario, String 
senha) {  
		try {    
			Class.forName(driver);    
			Connection conn =  DriverManager.getConnection(url , usuario, senha );  
  
			System.out.println ("conexao ok"); 
			JOptionPane.showMessageDialog(null, "Conexão bem Sucedida","OK"
					,JOptionPane.INFORMATION_MESSAGE); 

		} catch (ClassNotFoundException e) {    
			System.out.println (e.getMessage());
			JOptionPane.showMessageDialog(null, "Classe não Encontrada","Erro"
					,JOptionPane.ERROR_MESSAGE); 


		}catch (SQLException e) {    
			System.out.println("SQLException: " + e.getMessage());
			System.out.println("SQLState: " + e.getSQLState());
			System.out.println("VendorError: " + e.getErrorCode());
			JOptionPane.showMessageDialog(null, "Erro ","Erro"
					,JOptionPane.ERROR_MESSAGE); 

		}catch(Exception e){
			System.out.println("Problemas ao tentar conectar com o banco de dados: 
" + e);
			JOptionPane.showMessageDialog(null, "Não foi possível conetar ao 
banco","OK"
					,JOptionPane.ERROR_MESSAGE); 

		}
	}   
}


[code]
public void handleEvent(Event event) {

Conexao conexao = new Conexao();
conexao.conectar(comboDriver.getText(),
comboURL.getText(),txtUsuario.getText(),txtSenha.getText());

[code]
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