这个问题怎么解决啦jdbc

package test;

import java.sql.*;

public class JdbcDemo {

public static void main(String[] args) throws SQLException, ClassNotFoundException {
    Class.forName("com.mysql.jdbc.Driver");

    Connection conn= DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","123456");
    Statement stmt=conn.createStatement();
     ResultSet rs=stmt.executeQuery("select id,name from emp");
     while (rs.next()){
         int id=rs.getInt("id");
         String sname=rs.getString("name");
         System.out.println(id+"\t"+sname);
     }
}

}

jar包是否引入了呢

Class.forName("com.mysql.jdbc.Driver");
有些版本是 Class.forName("com.mysql.cj.jdbc.Driver"); 试试这个
有用记得采纳呐