1、tomcat安装目录\conf\ server.xml
<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/VoteDB"
      type="javax.sql.DataSource"
      password="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      maxIdle="3"
      maxWait="5000"
      username="test"
      url="jdbc:oracle:thin:@10.10.0.1:1901:hccdb"
      maxActive="10"/>
  </GlobalNamingResources>
2、tomcat安装目录\conf\context.xml
     <Resource
      name="jdbc/VoteDB"
      type="javax.sql.DataSource"
      password="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      maxIdle="3"
      maxWait="5000"
      username="test"
      url="jdbc:oracle:thin:@10.10.0.1:1901:hccdb"
      maxActive="10"/>
3、spring 的applicationContext.xml
<bean id="myDateSourece" class="org.springframework.jndi.JndiObjectFactoryBean">   
  <property name="jndiName">   
   <value>java:comp/env/jdbc/VoteDB</value>   
  </property>   
  <property name="lookupOnStartup" value="false"/>
     <property name="cache"  value="true"/>
     <property name="proxyInterface"  value="javax.sql.DataSource"/>  
 </bean>