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Base de Dados e JavaServerPage


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JSP e Servlets - http://revista-programar.info/?action=index&type=viewpost&n=51

Ligação a base de dados - http://www.portugal-a-programar.pt/topic/61714-conexao-base-de-dados/

Isto são exemplos base sem adição se nenhuma framework

Para ligares as duas coisas basta criar uma class que contenha todos os métodos que trabalham sobre a base de dados e criar uma servlet que inicialize a mesma

Deste género

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import com.db.InterfaceDB;
public class InitServlet extends HttpServlet {
public static InterfaceDB db;
@Override
public void init() throws ServletException {
	try {
		db = new InterfaceDB();
	} catch (Exception e) {
		throw new ServletException("ERROR!: Couldn't initialize Data Base", e);
	}
}
}

e colocares o seguinte mapeamento no web.xml

	<servlet>
	<servlet-name>InitServlet</servlet-name> //a name
	<servlet-class>com.servlet.InitServlet</servlet-class> //class package path
	<load-on-startup>1</load-on-startup> //defines class instanciation when the application starts
</servlet>

The worst part of censorship is ****

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