请教：关于tomcat中配置JNDI的问题。

最新推荐文章于 2018-07-10 17:50:28 发布

最新推荐文章于 2018-07-10 17:50:28 发布 · 204 阅读

文章标签：

#Tomcat #Java #Apache #Servlet #JSP

本文记录了一个关于Apache Tomcat服务器中JNDI数据源配置导致的500错误的问题。主要原因是名为“dbc”的数据源未在上下文中绑定。文中包含了错误报告详情及Tomcat配置文件片段。

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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>