http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jndi-datasource-examples-howto.html
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但是我的sever.xml里面根本就没有这一句,我不知道上面的东东加在哪里,就加在了最后面
你加的是对的。
但是，这个错误
Catalina.start using conf/server.xml: org.xml.sax.SAXParseException: The up in the document following the root element must be well-formed.
org.xml.sax.SAXParseException: The up in the document following the root element must be well-formed.
时说你的server.xml文件的root元素有问题，用ie或者xmlspy看看你的server.xml结构有什么问题。你离成功不远了
<!-- Note that component elements are nested corresponding to their
parent-child relationships with each other --><!-- A "Server" is a singleton element that represents the entire JVM,
which may contain one or more "Service" instances. The Server
listens for a shutdown command on the indicated port. Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" or "Loggers" at this level.
--><Server port="8005" shutdown="SHUTDOWN" debug="0">
<!-- Comment these entries out to disable JMX MBeans support -->
<!-- You may also configure custom components (e.g. Valves/Realms) by
including your own mbean-descriptor file(s), and setting the
"descriptors" attribute to point to a ';' seperated list of paths
(in the ClassLoader sense) of files to add to the default list.
e.g. descriptors="/com/myfirm/mypackage/mbean-descriptor.xml"
-->
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
debug="0"/>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
debug="0"/> <!-- Global JNDI resources -->
<GlobalNamingResources> <!-- Test entry for demonstration purposes -->
<Environment name="simpleValue" type="java.lang.Integer" value="30"/> <!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users -->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved">
</Resource>
<ResourceParams name="UserDatabase">
<parameter>
<name>factory</name>
<value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
</parameter>
<parameter>
<name>pathname</name>
<value>conf/tomcat-users.xml</value>
</parameter>
</ResourceParams> </GlobalNamingResources> <!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" (and therefore the web applications visible
within that Container). Normally, that Container is an "Engine",
but this is not required. Note: A "Service" is not itself a "Container", so you may not
define subcomponents such as "Valves" or "Loggers" at this level.
--> <!-- Define the Tomcat Stand-Alone Service -->
<Service name="Catalina"> <!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Each Connector passes requests on to the
associated "Container" (normally an Engine) for processing. By default, a non-SSL HTTP/1.1 Connector is established on port 8080.
You can also enable an SSL HTTP/1.1 Connector on port 8443 by
following the instructions below and uncommenting the second Connector
entry. SSL support requires the following steps (see the SSL Config
HOWTO in the Tomcat 5 documentation bundle for more detailed
instructions):
* If your JDK version 1.3 or prior, download and install JSSE 1.0.2 or
later, and put the JAR files into "$JAVA_HOME/jre/lib/ext".
* Execute:
%JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA (Windows)
$JAVA_HOME/bin/keytool -genkey -alias tomcat -keyalg RSA (Unix)
with a password value of "changeit" for both the certificate and
the keystore itself. By default, DNS lookups are enabled when a web application calls
request.getRemoteHost(). This can have an adverse impact on
performance, so you can disable it by setting the
"enableLookups" attribute to "false". When DNS lookups are disabled,
request.getRemoteHost() will return the String version of the
IP address of the remote client.
--> <!-- Define a non-SSL Coyote HTTP/1.1 Connector on the port specified
during installation -->
<Connector
port="8090" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" />
<!-- Note : To disable connection timeouts, set connectionTimeout value
to 0 -->
<!-- Note : To use gzip compression you could set the following properties :
compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml"
--> <!-- Define a SSL Coyote HTTP/1.1 Connector on port 8443 -->
<!--
<Connector port="8443"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" disableUploadTimeout="true"
acceptCount="100" debug="0" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
--> <!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" debug="0"
protocol="AJP/1.3" /> <!-- Define a Proxied HTTP/1.1 Connector on port 8082 -->
<!-- See proxy documentation for more information about using this. -->
<!--
<Connector port="8082"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false"
acceptCount="100" debug="0" connectionTimeout="20000"
proxyPort="80" disableUploadTimeout="true" />
--> <!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host). --> <!-- You should set jvmRoute to support load-balancing via JK/JK2 ie :
<Engine name="Standalone" defaultHost="localhost" debug="0" jvmRoute="jvm1">
-->
<!-- Define the top level container in our container hierarchy -->
<Engine name="Catalina" defaultHost="localhost" debug="0"> <!-- The request dumper valve dumps useful debugging information about
the request headers and cookies that were received, and the response
headers and cookies that were sent, for all requests received by
this instance of Tomcat. If you care only about requests to a
particular virtual host, or a particular application, nest this
element inside the corresponding <Host> or <Context> entry instead. For a similar mechanism that is portable to all Servlet 2.4
containers, check out the "RequestDumperFilter" Filter in the
example application (the source for this filter may be found in
"$CATALINA_HOME/webapps/examples/WEB-INF/classes/filters"). Request dumping is disabled by default. Uncomment the following
element to enable it. -->
<!--
<Valve className="org.apache.catalina.valves.RequestDumperValve"/>
--> <!-- Global logger unless overridden at lower levels -->
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/> <!-- Because this Realm is here, an instance will be shared globally --> <!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
debug="0" resourceName="UserDatabase"/> <!-- Comment out the old realm but leave here for now in case we
need to go back quickly -->
<!--
<Realm className="org.apache.catalina.realm.MemoryRealm" />
--> <!-- Replace the above Realm with one of the following to get a Realm
stored in a database and accessed via JDBC --> <!--
<Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
driverName="org.gjt.mm.mysql.Driver"
connectionURL="jdbc:mysql://localhost/authority"
connectionName="test" connectionPassword="test"
userTable="users" userNameCol="user_name" userCredCol="user_pass"
userRoleTable="user_roles" roleNameCol="role_name" />
--> <!--
<Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
driverName="oracle.jdbc.driver.OracleDriver"
connectionURL="jdbc:oracle:thin:@ntserver:1521:ORCL"
connectionName="scott" connectionPassword="tiger"
userTable="users" userNameCol="user_name" userCredCol="user_pass"
userRoleTable="user_roles" roleNameCol="role_name" />
--> <!--
<Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
driverName="sun.jdbc.odbc.JdbcOdbcDriver"
connectionURL="jdbc:odbc:CATALINA"
userTable="users" userNameCol="user_name" userCredCol="user_pass"
userRoleTable="user_roles" roleNameCol="role_name" />
--> <!-- Define the default virtual host
Note: XML Schema validation will not work with Xerces 2.2.
-->
<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false"> <!-- Defines a cluster for this node,
By defining this element, means that every manager will be changed.
So when running a cluster, only make sure that you have webapps in there
that need to be clustered and remove the other ones.
A cluster has the following parameters: className = the fully qualified name of the cluster class name = a descriptive name for your cluster, can be anything debug = the debug level, higher means more output mcastAddr = the multicast address, has to be the same for all the nodes mcastPort = the multicast port, has to be the same for all the nodes mcastFrequency = the number of milliseconds in between sending a "I'm alive" heartbeat mcastDropTime = the number a milliseconds before a node is considered "dead" if no heartbeat is received tcpThreadCount = the number of threads to handle incoming replication requests, optimal would be the same amount of threads as nodes tcpListenAddress = the listen address (bind address) for TCP cluster request on this host,
in case of multiple ethernet cards.
auto means that address becomes
InetAddress.getLocalHost().getHostAddress() tcpListenPort = the tcp listen port tcpSelectorTimeout = the timeout (ms) for the Selector.select() method in case the OS
has a wakup bug in java.nio. Set to 0 for no timeout printToScreen = true means that managers will also print to std.out expireSessionsOnShutdown = true means that useDirtyFlag = true means that we only replicate a session after setAttribute,removeAttribute has been called.
false means to replicate the session after each request.
false means that replication would work for the following piece of code:
<%
HashMap map = (HashMap)session.getAttribute("map");
map.put("key","value");
%>
replicationMode = can be either 'pooled', 'synchronous' or 'asynchronous'.
* Pooled means that the replication happens using several sockets in a synchronous way. Ie, the data gets replicated, then the request return. This is the same as the 'synchronous' setting except it uses a pool of sockets, hence it is multithreaded. This is the fastest and safest configuration. To use this, also increase the nr of tcp threads that you have dealing with replication.
* Synchronous means that the thread that executes the request, is also the
thread the replicates the data to the other nodes, and will not return until all
nodes have received the information.
* Asynchronous means that there is a specific 'sender' thread for each cluster node,
so the request thread will queue the replication request into a "smart" queue,
and then return to the client.
The "smart" queue is a queue where when a session is added to the queue, and the same session
already exists in the queue from a previous request, that session will be replaced
in the queue instead of replicating two requests. This almost never happens, unless there is a
large network delay.
-->
好像不是连接池的事吧。应该是你的TOMCAT的事吧！
太长，我也没有看不明白
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
和</hots>之内的任何地方都行。
还有修改过程中不能用记事本打开server.xml文件，这样保存TOMCAT是不认的，用EDITPULS等工具打开进行修改。
Context path是会在conf目录下自动生成Catalina目录的localhost目录下，里面的xml你可以看看。将jar包确认好，并将classpath配置好，先做最简单的main执行类尝试数据库的连接是否成功，再启动tomcat尝试datasource的连接是否成功，再建connection，和数据库操作
我的环境是tomcat5.5+oracle10i
哪位大哥遇到过这个问题帮帮忙吧,我都弄了一晚上了,对了,我的配置方法完全参照tomcat网站的howto做的
SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' 错误
我的环境是tomcat5.5+oracle9i
使用tomcat5.0+oracle9i没有问题
<Context docBase="track" path="/track" workDir="work\Catalina\localhost\track">
<Resource name="jdbc/Oracle" type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/Oracle">
<parameter>
<name>maxWait</name>
<value>5000</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>20</value>
</parameter>
<parameter>
<name>password</name>
<value>btn</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:oracle:thin:@bs:1521:bs</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>oracle.jdbc.driver.OracleDriver</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>5</value>
</parameter>
<parameter>
<name>username</name>
<value>JBAS</value>
</parameter>
</ResourceParams>
</Context>
http://blog.csdn.net/cm4ever/archive/2004/10/22/147446.aspx