Manou1980 Engagé et Fiancé | Bonjour,
Pouvez vous m'aider à executer un Query à l'aide PreparedStatement sachant que ma connexion passe par une DataSource JNDI.
Context.xml
Code :
- <?xml version="1.0" encoding="UTF-8"?>
- <Context>
- <!-- Specify a JDBC datasource -->
-
- <Resource name="jdbc/TestDB" auth="Container" type="javax.sql.DataSource"
- maxActive="100" maxIdle="30" maxWait="10000"
- username="root" password="admin" driverClassName="com.mysql.jdbc.Driver"
- url="jdbc:mysql://localhost:3306/myfirstdb"/>
- </Context>
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La Classe ConnexionBDD qui Fonctionne tres bien
Code :
- package interactiondb;
- import java.sql.Connection;
- import java.sql.SQLException;
- import java.sql.DriverManager;
- import java.sql.SQLException;
- import java.util.logging.Level;
- import java.util.logging.Logger;
- import javax.sql.DataSource;
- import javax.naming.Context;
- import javax.naming.InitialContext;
- import javax.naming.NamingException;
- import com.mysql.jdbc.PreparedStatement;
- public class ConnexionBDD
- {
- private static Connection connexion;
- static DataSource dataSource=null;
- public Context ctx;
- public ConnexionBDD()
- {
-
- this.connexion = null;
-
- try
- {
- ctx = new InitialContext();
- dataSource = (DataSource) ctx.lookup("java:comp/env/jdbc/TestDB" );
- }
- catch (NamingException e)
- {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- public Connection getConnexion()
- {
- try
- {
- connexion= dataSource.getConnection();
- }
- catch (SQLException e)
- {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return this.connexion;
- }
- }
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Et enfin la classe CRUD
Code :
- package interactiondb;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import com.mysql.jdbc.Connection;
- import com.mysql.jdbc.PreparedStatement;
- import java.util.logging.Logger;
- import java.util.logging.Level;
- import model.Employees;
- //import model.Member;
- import interactiondb.ConnexionBDD;
- public class CRUD
- {
- ConnexionBDD connect = new ConnexionBDD();
- Connection con=null;
- PreparedStatement pstmt;
- public CRUD ()
- {
- System.out.println("Etape 1" );
- con = (Connection) connect.getConnexion();
- System.out.println("Etape 2" );
- }
- // A Verifier
- public int login(String login, String password)
- {
- int count=0;
- try
- {
- System.out.println("Etape 3" );
- pstmt=(PreparedStatement) con.prepareStatement("select * from member"
- + " where login='" + login + "' and password='" + password + "'" );
- System.out.println("Etape 4" );
- ResultSet result = pstmt.executeQuery();
- System.out.println("Etape 5" );
- // Exploitation des résultats
- while (result.next())
- {
- count++;
- }
- }
- catch (Exception e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- try
- {
- pstmt.close();
- }
- catch (SQLException e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- return count;
- }
- /////////////////////////////
- public Employees edit(int matricola)
- {
- Employees listemployees = null;
- try
- {
- pstmt=(PreparedStatement) con.prepareStatement("select * from employees"
- + " where matricola='" + matricola + "'" );
- ResultSet result = pstmt.executeQuery();
- // Exploitation des résultats
- while (result.next())
- {
- listemployees = new Employees(result.getInt("matricola" ),result.getString("dataas" ),result.getString("nome" ),result.getString("cognome" ),result.getString("datafa" )); //////////////////////
- }
- }
- catch (Exception e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- try
- {
- pstmt.close();
- }
- catch (SQLException e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- return listemployees;
- }
- public int delete(int matricola) throws SQLException
- {
- int resultat=0;
- try
- {
- pstmt=(PreparedStatement) con.prepareStatement("delete from 'employees' where 'matricola'="+ matricola);
- resultat = pstmt.executeUpdate();
- }
- catch (Exception e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- try
- {
- pstmt.close();
- }
- catch (SQLException e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- return resultat;
- }
- public int update(Employees employee) throws SQLException
- {
- int resultat=0;
- Employees emp = new Employees(employee.getmatricola(),employee.getdataas(),employee.getnome(),employee.getcognome(),employee.getdatafa());
- try
- {
- pstmt=(PreparedStatement) con.prepareStatement("UPDATE employees SET dataas = '" + emp.getdataas() + "', nome = '" + emp.getnome() + "', cognome = '" + emp.getcognome() + "', datafa = '" + emp.getdatafa() + "' WHERE matricola = '" + emp.getmatricola() + "'" );
- resultat = pstmt.executeUpdate();
- }
- catch (Exception e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- try
- {
- pstmt.close();
- }
- catch (SQLException e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- return resultat;
- }
- public int insert(Employees p) throws SQLException
- {
- int resultat=0;
- try
- {
- pstmt=(PreparedStatement) con.prepareStatement("INSERT INTO employees(matricola,dataas,nome,cognome,datafa) " +
- "VALUES (" + p.getmatricola() + ", '" + p.getdataas() + "', '" + p.getnome() + "', '" + p.getcognome() + "','" + p.getdatafa() + "')" );
- resultat = pstmt.executeUpdate();
- }
- catch (Exception e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- try
- {
- pstmt.close();
- }
- catch (SQLException e)
- {
- Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, e);
- }
- return resultat;
- }
- }
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Manou1980
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