用连接池连接oracle出错,帮忙看看

数据库是oracle10g_home2, lib包是ojdbc14.jar,
tomcat的conf/context.xml
XML code:
<Context>


<Resource name="jdbc/oracleds" auth="Container" type="javax.sql.DataSource" maxActive="100" maxIdle="30"
maxWait="10000" username="scott" password="tiger" driverClassName = "oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@192.168.1.101:1521:oral"/>


</Context>

InputAction的主要代码:
Java code:
Context context = new InitialContext();
DataSource ds = (DataSource)context.lookup("java:/comp/env/jdbc/oracleds");
Connection conn = ds.getConnection();


出现如下的错误信息:
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at com.deng.struts.action.InputAction.execute(InputAction.java:62)
at org.apache.struts.chain.commands.servlet.Execu