javax.servlet.ServletException: Cannot create resource instance

Question

HTTP Status 500 -

---

type Exception report

message

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

exception

javax.servlet.ServletException: Cannot create resource instance
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
org.apache.jsp.addMessageHandler_jsp._jspService(addMessageHandler_jsp.java:171)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

javax.naming.NamingException: Cannot create resource instance
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:132)
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
org.apache.naming.NamingContext.lookup(NamingContext.java:791)
org.apache.naming.NamingContext.lookup(NamingContext.java:138)
org.apache.naming.NamingContext.lookup(NamingContext.java:779)
org.apache.naming.NamingContext.lookup(NamingContext.java:138)
org.apache.naming.NamingContext.lookup(NamingContext.java:779)
org.apache.naming.NamingContext.lookup(NamingContext.java:138)
org.apache.naming.NamingContext.lookup(NamingContext.java:779)
org.apache.naming.NamingContext.lookup(NamingContext.java:151)
org.apache.naming.SelectorContext.lookup(SelectorContext.java:136)
javax.naming.InitialContext.lookup(InitialContext.java:351)
org.apache.jsp.addMessageHandler_jsp._jspService(addMessageHandler_jsp.java:123)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
上面的这些信息是说的什么啊？我用的是连接池，但是我配好了的啊，而且在其他工程里面都没有出错，是怎么回事呢？麻烦各位圣贤了，小弟在此拜谢了
下面的文件时我的工程文件，所有的东西都在里面了
我也不知道是不是jdbc的jar包不兼容，还望各位兄台帮忙

Answer 1

照错误来看，还是在JNDI上
根据你的程序，我测试了一下，完全没有问题，没有报相类似的错误。
贴一下数据源配置：
[code="java"]
type="javax.sql.DataSource"
url="jdbc:oracle:thin:@localhost:1521:orcl"
username="system"
password="test"
driverClassName="oracle.jdbc.driver.OracleDriver"
maxIdle="3"
maxWait="-1"
maxActive="50" />[/code]

ojdbc14.jar用于JDK 1.4及以上,应该不会出现不兼容的情况。