使用Hibernate导出schema到数据库的问题

[wilderwang]

用ant hibernate生成数据库

返回的错误为

hibernate:

[schemaupdate] log4j:WARN No appenders could be found for logger (org.hi
bernate.

cfg.Environment).

[schemaupdate] log4j:WARN Please initialize the log4j system properly.

BUILD FAILED

I:\Program\J2EE\aib\workspace\company\build.xml:382: Schema text failed:
JDBC Driver class not found:

build.xml的相关部分为

<!-- Hibernate -->



<target name="hibernate" if="Hibernate"

description="Generating DB schema using Hibernate">



<taskdef name="schemaupdate"

classname="org.hibernate.tool.hbm2ddl.SchemaUpdateTask"

classpathref="class.path"/>



<schemaupdate

config="${hibernate.cfg.file}"

quiet="no">

</schemaupdate>



<taskdef name="schemaexport"

classname="org.hibernate.tool.hbm2ddl.SchemaExportTask"

classpathref="class.path"/>

<schemaexport

config="${hibernate.cfg.file}"

quiet="no"

text="no"

drop="no"

delimiter=";"

output="${root}/hibernate-schema-export.sql">

</schemaexport>

</target>



mysql的jdbc驱动已经装好，自己写代码连数据库也没问题

请问这有可能是什么方面的问题？

[wilderwang]

大概是这样的，请问有什么问题？

<property name="classpath" value="${java.rt.file};${j2ee.jars};${axis.jars};${junit.jars};${jasper.jars};${xml.jars};${struts.jars};${jakarta.jars};${log4j.jars};${struts.jars};${xml.jars};${rm.jars};${hibernate.jars};.;${build}/classes;${db.jars};${hibernate.hbm.xml.dir};${portal.jars}"/>


<path id="class.path">
<pathelement path="${classpath}" />
<fileset dir="${dist}">
<include name="speedo.jar"/>
<include name="lib/log/log4j.jar"/>
<include name="lib/jdbc/*.jar"/>
</fileset>
</path>

[interpb]

class.path 的值是?