Bonjour,
s'il vous plait aidez moi :'( j'ai developpé une application d'authentification jsp/servlet sous eclipse connecté à base de donnée et je trois pages:login.jsp et voila le code:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="Login.java" method="post">
Username : <input type="text" name="username"><br>
Password : <input type="password" name="pass"><br>
<input type="submit" value="connexion"><br>
</form>
</body>
</html>.
et page servlet:Login.java:package user;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Login extends HttpServlet {
private static final long serialVersionUID = 1L;
public Login() {
super();
}
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
String username = request.getParameter("username");
String pass = request.getParameter("pass");
String sql = "select * from authbase where login='" + username + "'";
Connection conn = null;
try {
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/database",
"root", "your_password");
Statement s = conn.createStatement();
java.sql.ResultSet rs = s.executeQuery(sql);
String un = null;
String pw = null;
String name = null;
while (rs.next()) {
un = rs.getString("login");
pw = rs.getString("password");
}
PrintWriter pww = response.getWriter();
if (un.equals(username) && pw.equals(pass)) {
response.setContentType("text/html");
pww.write("<h1>Welcome, " + un + "</h1>");
} else {
pww.write("wrong username or password\n");
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
EDIT : Ajout des balises de code (la coloration syntaxique).
Explications disponibles ici : ICI
Merci d'y penser dans tes prochains messages.
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