Abderrahmen :
I made a simple MySQL connection Class and JSP but it doesn't work.
Do not give me anything no error no result !
Java Class :
package com.indemo;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class TestConn {
public static Connection getConnection(){
Connection con = null ;
try {
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:8012/demojade","root"," ");
return con ;
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
}
JSP page :
<%@page import="java.sql.Connection" %>
<%@page import="com.indemo.TestConn" %>
<%@page import="java.sql.DriverManager" %>
<%@ page language="java" contentType="text/html; charset=windows-1256"
pageEncoding="windows-1256"%>
<!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=windows-1256">
<title>Insert title here</title>
</head>
<body>
<%
TestConn db = new TestConn();
Connection conn = db.getConnection();
if(conn != null){
out.println("Connect");
}else{
out.println("Nothing"); }
%>
</body>
</html>
I got this :
tomcat working well and xampp also when eclipse console do not give any error.
Wissam :
Replace e.printStacktrace(); instead of your naive System.out.println(); to see the errors and the messages about how to solve them. By the way, Check the connector version and the MySQL version mismatch. MySQL 8 needs the version 8 from the JDBC connector .jar . check this link