用Tomcat,最担心的就是配置JNDI的DataSource的时候出现问题,随着各大厂商发布自己的JDBC的实现,兼容性的问题也就越来也突出了...
一般我们都是用Tomcat自带的DBCP来处理,配置如下:
Oracle JDBC Driver for JDK 1.4 or JDK 1.5
http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/htdocs/jdbc_10201.html
不过这个写法,如果在JBuilderX中,跑Tomcat 4.1,加上最新版的 Oracle JDBC Driver会存在问题,系统抛出的错误为:
javax.naming.NamingException: Cannot create resource instance at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:189) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301) at org.apache.naming.NamingContext.lookup(NamingContext.java:834) 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: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) |
看来DBCP针对java.sql.DataSource相关的实现与ojdbc14.jar存在兼容性的问题,需要按照下面的写法才能OK:
原来Oracle自己实现了DataSource的工厂类来管理DataSource的建立!
同样发现微软的SQL Server 2000 Driver for JDBC Service Pack 3也存在这个问题!
http://www.microsoft.com/downloads/details.aspx?familyid=07287b11-0502-461a-b138-2aa54bfdc03a&displaylang=en
需要如下配置: