请教：关于tomcat中配置JNDI的问题。

得过且过

下面是错误提示。下面还有我的TOMCAT配置文件。（是通过tomcat图形页面生成的）
请各位 。小弟（本人人品低连代码都欺负人）。谢谢。


HTTP Status 500 -

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

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Exception in JSP: /jndiTest.jsp:10

7: <%
8:   
9:  Context initCtx = new InitialContext();
10: DataSource ds = (DataSource)initCtx.lookup("java:comp/env/dbc/Test");
11:
12: Connection conn = ds.getConnection();
13: conn.close();


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

javax.servlet.ServletException: Name dbc is not bound in this Context
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.jndiTest_jsp._jspService(jndiTest_jsp.java:70)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

javax.naming.NameNotFoundException: Name dbc is not bound in this Context
org.apache.naming.NamingContext.lookup(NamingContext.java:769)
org.apache.naming.NamingContext.lookup(NamingContext.java:139)
org.apache.naming.NamingContext.lookup(NamingContext.java:780)
org.apache.naming.NamingContext.lookup(NamingContext.java:139)
org.apache.naming.NamingContext.lookup(NamingContext.java:780)
org.apache.naming.NamingContext.lookup(NamingContext.java:152)
org.apache.naming.SelectorContext.lookup(SelectorContext.java:136)
javax.naming.InitialContext.lookup(InitialContext.java:351)
org.apache.jsp.jndiTest_jsp._jspService(jndiTest_jsp.java:55)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.


tomcat配置文件
---------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<Server>
  <Listener className="org.apache.catalina.core.AprLifecycleListener"/>
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
  <Listener className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>
  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"/>
  <GlobalNamingResources>
    <Environment
      name="simpleValue"
      type="java.lang.Integer"
      value="30"/>
    <Resource
      auth="Container"
      description="User database that can be updated and saved"
      name="UserDatabase"
      type="org.apache.catalina.UserDatabase"
      pathname="conf/tomcat-users.xml"
      factory="org.apache.catalina.users.MemoryUserDatabaseFactory"/>
    <Resource
      name="jdbc/Test"
      type="javax.sql.DataSource"
      password="tiger"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      maxIdle="2"
      maxWait="5000"
      username="scott"
      url="jdbc:oracle:thin:@10.164.11.226:1521:dbserver"
      maxActive="4"/>
  </GlobalNamingResources>
  <Service
      name="Catalina">
    <Connector
        port="8090"
        redirectPort="8443"
        minSpareThreads="25"
        connectionTimeout="20000"
        maxSpareThreads="75"
        maxThreads="150">
    </Connector>
    <Connector
        port="8009"
        redirectPort="8443"
        protocol="AJP/1.3">
    </Connector>
    <Engine
        defaultHost="localhost"
        name="Catalina">
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>
      <Host
          appBase="webapps"
          name="localhost">
      </Host>
    </Engine>
  </Service>
</Server>