另外,在tomcat启动并加载的时候,出了异常:
javax.naming.NameNotFoundException: Name jdbc is not bound in this Context
        at org.apache.naming.NamingContext.lookup(NamingContext.java:811)
        at org.apache.naming.NamingContext.lookup(NamingContext.java:181)
        at org.apache.naming.NamingContext.lookup(NamingContext.java:822)
        at org.apache.naming.NamingContext.lookup(NamingContext.java:181)
        at org.apache.naming.NamingContext.lookup(NamingContext.java:822)
        at org.apache.naming.NamingContext.lookup(NamingContext.java:194)
        at org.apache.naming.SelectorContext.lookup(SelectorContext.java:183)
        at javax.naming.InitialContext.lookup(InitialContext.java:347)
        at common.ParentDBBean.getPooledConnection(ParentDBBean.java:517)
        at common.ParentDBBean.initialize(ParentDBBean.java:295)
        at common.dispatch.LoadInitPara.init(LoadInitPara.java:61)
应该是我在server.xml中没有配置数据库连接池和数据源导致,那么如何配置,请指教,谢谢!