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continentes.jsp

Insert title hereContinentes

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}}catch(Exception e){

out.println(e.toString());}out.println("");%>

HolaForm.java

packagemodelo;import javax.servlet.http.HttpServletRequest;importorg.apache.struts.action.*;

publicclassHolaForm extendsActionForm {

privateString nombre;privateString apellido;privateString consulta;publicString getConsulta() {

returnconsulta;}

publicvoidsetConsulta(String consulta) {this.consulta= consulta;

}publicString getNombre() {

returnnombre;}

publicvoidsetNombre(String nombre) {this.nombre= nombre;

}publicString getApellido() {

returnapellido;}

publicvoidsetApellido(String apellido) {this.apellido= apellido;

}

publicvoidreset(ActionMapping map, HttpServletRequest req)

{this.nombre="";this.apellido="";this.consulta="";

}publicActionErrors validate(ActionMapping map, HttpServletRequest req){

ActionErrors errors=newActionErrors();if(nombre==null|| nombre.length()

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HolaAction.java

packagecontrolador;importjavax.servlet.http.HttpServletRequest;

importjavax.servlet.http.HttpServletResponse;importorg.apache.struts.action.*;importmodelo.*;importjava.util.*;

publicclassHolaAction extendsAction{publicActionForward execute(ActionMapping map, ActionForm form,

HttpServletRequest req,HttpServletResponse resp){

HolaForm forma=(HolaForm)form;String nombre=forma.getNombre();String apellido=forma.getApellido();String consulta=forma.getConsulta();ActionForward fwd=newActionForward();

if(consulta.equals("continentes")){

DaoContinentes dao=newDaoContinentes();ArrayList array=new

ArrayList();array=dao.listarContinentes(forma);req.setAttribute("array", array);fwd = map.findForward("Continentes");

}

if(consulta.equals("paises")){

DaoPaises dao=newDaoPaises();ArrayList array=newArrayList();

array=dao.listarPaises(forma);req.setAttribute("array", array);fwd = map.findForward("Paises");

}

if(consulta.equals("empleados")){

DaoEmpleados dao=newDaoEmpleados();ArrayList array=newArrayList();array=dao.listarEmpleados(forma);req.setAttribute("array", array);fwd = map.findForward("Empleados");

}returnfwd;

}

}

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Parametros.java

packagecomSql;

publicclassParametros {

privateString driver;privateString url;privateString serverName;privateString port;privateString dbName;privateString user;privateString password;publicString getDriver() {

returndriver="com.microsoft.sqlserver.jdbc.SQLServerDriver";}publicString getUrl() {

returnurl="jdbc:sqlserver://"+getServerName()+":"+getPort()+";databaseName="+getDbName();

}publicString getServerName() {

returnserverName="localhost";}publicString getPort() {

returnport="1433";}publicString getDbName() {

returndbName="ingenieria";}publicString getUser() {

returnuser="sa";

}publicString getPassword() {

returnpassword="root";}

}

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Conexion.java

packagecomSql;importjava.sql.*;

publicclassConexion {

publicConnection getConexion()

{Connection cn=null;Parametros p=newParametros();try{

Class.forName(p.getDriver());

cn=DriverManager.getConnection(p.getUrl(),p.getUser(),p.getPassword());

}catch(ClassNotFoundException e){

System.out.println(e.toString());}catch(SQLException e){

System.out.println(e.toString());}catch(Exception e){

System.out.println(e.toString());}

returncn;}

}

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Sql.java

packagecomSql;importjava.sql.*;

publicclassSql {publicResultSet consultar(String query) {

Connection cn = null;Statement st = null;ResultSet rs = null;try{

Conexion conexion = newConexion();cn = conexion.getConexion();st = cn.createStatement();rs = st.executeQuery(query);

} catch(SQLException e) {System.out.println(e.toString());

} catch(Exception e) {System.out.println(e.toString());

}

returnrs;}

publicString ejecutar(String query)

{Connection cn = null;Statement st = null;

String mensaje = null;

try{Conexion conexion = newConexion();cn = conexion.getConexion();st = cn.createStatement();st.execute(query);cn.close();

} catch(SQLException e) {System.out.println(e.toString());mensaje = e.getMessage();

} catch(Exception e) {System.out.println(e.toString());mensaje = e.getMessage();

}returnmensaje;

}}

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DaoContinentes.java