Spring如何使用Tomcat 7提供的JNDI DataSource？

Question

我关注了这个答案How to use JNDI DataSource provided by Tomcat in Spring?，但我遇到了以下异常：

java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:524)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:493)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:273)
at com.mchange.v2.c3p0.DriverManagerDataSource.driver(DriverManagerDataSource.java:224)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:120)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:143)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:132)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)

tomcat server.xml：

<GlobalNamingResources>
<Resource 
    name="jdbc/welcome-kit"
    global="jdbc/welcome-kit"       
    auth="Container" 
    type="javax.sql.DataSource" 
    username="name" 
    password="pass" 
    driverClassName="oracle.jdbc.driver.OracleDriver"
    url="host/port:test" 
    maxActive="8" 
    maxIdle="4"
/>

tomcat 上下文.xml

<ResourceLink global="jdbc/welcome-kit" name="jdbc/welcome-kit" type="javax.sql.DataSource" />

Web 应用程序 web.xml：

<resource-ref>
 <description>DB Connection</description>
 <res-ref-name>jdbc/welcome-kit</res-ref-name>
 <res-type>javax.sql.DataSource</res-type>
 <res-auth>Container</res-auth>

spring-context.xml：

<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/jdbc/welcome-kit">
</bean>

我还在 tomcat/lib 中添加了 ojdbc.jar

Answer 1

在 web.xml 中

<resource-ref>
    <res-ref-name>myDatasource</res-ref-name>
    <res-type>javax.sql.XADataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>

在您的 Spring 应用程序上下文中：

<!-- Define the JNDI datasource -->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/myDatasource" />
</bean>