Exercice 2 / JSP - Mysql

<%@ page errorPage="error.jsp" import="java.sql.*" %> <%! // --------------- inits for the servlet -------------- // Connection à la base de donnée Connection con; // The statement Statement stmt; // The queryString String queryString = null; // ---- configure this for your site String username = "nobody"; String password = null; // The URL that will connect to TECFA's MySQL server // Syntax: jdbc:TYPE:machine:port/DB_NAME // String url = "jdbc:mysql://localhost:3306/learnett"; String url = "jdbc:mysql://tecfa2.unige.ch:3306/learnett"; %> <% // --------------- code for the service method -------------- // Let's see if we got a request queryString = request.getParameter ("QUERYSTRING"); if ((queryString != "") && (queryString != null)) { try { Class.forName("org.gjt.mm.mysql.Driver"); // Establish Connection to the database at URL with usename and password con = DriverManager.getConnection(url, username, password); out.println ("Ok, la connection avec la base de donnée est établie."); } catch (Exception e) // (ClassNotFoundException and SQLException) { throw(new UnavailableException(this, "Désolé ! la connection à la base de donnée n'est pas établie")); } try { out.println ("

Votre requête:

"); out.println ( "Requête: " + queryString + "
" ); out.println("

Résultat de la requête

"); out.println(""); stmt = con.createStatement(); ResultSet rs = stmt.executeQuery(queryString); ResultSetMetaData rsMeta = rs.getMetaData(); // Get the N of Cols in the ResultSet int noCols = rsMeta.getColumnCount(); out.println(""); for (int c=1; c<=noCols; c++) { String el = rsMeta.getColumnLabel(c); out.println(""); } out.println(""); while (rs.next()) { out.println(""); for (int c=1; c<=noCols; c++) { String el = rs.getString(c); out.println(""); } out.println(""); } out.println("
" + el + "
" + el + "
"); } catch (SQLException ex ) { out.println ( "

" );

	while (ex != null) {

	    out.println("Message: " + ex.getMessage ());

	    out.println("SQLState: " + ex.getSQLState ());

	    out.println("ErrorCode: " + ex.getErrorCode ());

	    ex = ex.getNextException();

	    out.println("");

	}

	out.println ( "

" ); } } %>


Carnet d'adresse staf2x
Requête:

Exemples:

select * from resin
select * from resin where npa >1204
select tel, email  from resin
update resin set email='resinb@infomaniak.ch' where login='bert'

Encore une fois ? | Source: ex2.jsp.txt