Eclipse连接mysql连接池时遇到无法创建实例

[youhere1]

我在写一个很初级的题目,如何连接数据库连接池,照书上写的,可是出现了好几个错误,我一路排查,
终于到了一个爬不过去的山,肯请各位大侠帮忙.
以下是异常情况:

javax.naming.NamingException: Cannot create resource instance
	at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:132)
	at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
	at org.apache.naming.NamingContext.lookup(NamingContext.java:791)
	at org.apache.naming.NamingContext.lookup(NamingContext.java:151)
	at org.apache.jsp.index_jsp._jspService(index_jsp.java:68)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
	at java.lang.Thread.run(Thread.java:595)
NamingException

下面是index_java.java的第61到71.

DataSource ds=null;
  Connection conn = null;
  Statement stmt = null;
  ResultSet rs = null;
  try{
  Context initCtx = new InitialContext();
  Context ctx = (Context)initCtx.lookup("java:comp/env");
  Object obj = (Object)ctx.lookup("hahadaxiao");
  ds = (DataSource)obj;
  conn = ds.getConnection();
  }
	 catch(NamingException e1){

实在不行了,请各位大哥帮帮忙.

[burningice44]

是不是没配置对啊
连接池的jar包放了没

[hoszone]

数据源没有配对吧

[youhere1]

<Context path="/03" docBase="03" debug="5" reloadable="True" corssContext="True">
	<Resource name="hahadaxiao"
		auth="Container"
		type="javax.sql.DateSource"
		maxActive="8"
		maxIdle="10"
		maxWait="8000"
		username="root"
		password="10278289"
		driverClassName="com.mysql.jdbc.Driver"
		url="jdbc:mysql://localhost:3306/test"/>
	</Context>

      </Host>

这是在tomcat的server.xml中配置的代码.

[fuyou001]

在项目的web.xml里要引用的

[youhere1]

我是在Tomcat中配的连接池,应该在tomcat放好jar就行了吧.
项目中还要放吗?
另外,我放的jar包就是jdbc连接数据库的jar包,不是连接连接池还有个单独的jar包吧?