Eclipse/Oracle Problems

I am trying to follow a youtube guide and ran into an error. I am getting the following message even when I copy code exactly.

I am using localhost, hr/hr, and oracle 11g with jdbc6 in the lib.

Please show me how and where to fix the code or direct me in how to set this up. Will upvote!

Exception Report

Message An exception occurred processing [/listCustomers.jsp] at line [17]

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.apache.jasper.JasperException: An exception occurred processing [/listCustomers.jsp] at line [17] 14:  15: <%@ include file="header.html"%> 16: 
List of Participating Companies
 17:  18: select * from business 19: order by bus_name 20:  Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:607) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:481) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) 

Root Cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor " org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:667) org.apache.jsp.listCustomers_jsp._jspService(listCustomers_jsp.java:190) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:458) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) 

Root Cause

javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor " org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(QueryTagSupport.java:285) org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(QueryTagSupport.java:168) org.apache.jsp.listCustomers_jsp._jspx_meth_sql_005fquery_005f0(listCustomers_jsp.java:214) org.apache.jsp.listCustomers_jsp._jspService(listCustomers_jsp.java:158) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:458) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) 

-------------------------------------------------------

Here is my code:

listCustomers.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>

<%@ include file="header.html"%>

List of Participating Companies

select * from business

order by bus_name

Business Number	Business Name	Category	Contract End Date
${customer.bus_num}	${customer.bus_name}	${customer.bus_category}	${customer.bus_contractend}

--------------------------------------------------------------

DatabaseListener.java

import javax.servlet.ServletContext;

import javax.servlet.ServletContextEvent;

import javax.servlet.ServletContextListener;

import javax.servlet.annotation.WebListener;

import oracle.jdbc.pool.OracleDataSource;

@WebListener

public class DatabaseListener implements ServletContextListener {

public void contextDestroyed(ServletContextEvent arg0) {

}

public void contextInitialized(ServletContextEvent sce) {

ServletContext ctx = sce.getServletContext();

try {

OracleDataSource ods = new OracleDataSource();

ods.setUser("hr");

ods.setPassword("hr");

ods.setURL("jdbc:oracle:thin:@localhost:1521:xe");

ctx.setAttribute("oracleDataSource", ods);

System.out.println("Created OracleDataSource successfully!");

} catch(Exception ex) {

System.out.println("Error : " + ex.getMessage());

}

}

}