怎么关联为什么不对呢？

weida 2004-04-05 06:19:40

两个表分别为relationfirst,relationsecond.字段都为ID和name.ejb-jar.xml文件如下：
<ejb-jar >

<description><![CDATA[No Description.]]></description>
<display-name>Generated by XDoclet</display-name>
<enterprise-beans>
<entity >
<description><![CDATA[]]></description>

<ejb-name>RelationSecond</ejb-name>

<home>test.cmp.RelationSecondHome</home>
<remote>test.cmp.RelationSecond</remote>
<local-home>test.cmp.RelationSecondLocalHome</local-home>
<local>test.cmp.RelationSecondLocal</local>

<ejb-class>test.cmp.RelationSecondCMP</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>second</abstract-schema-name>
<cmp-field >
<description><![CDATA[Returns the id]]></description>
<field-name>id</field-name>
</cmp-field>
<cmp-field >
<description><![CDATA[Returns the name]]></description>
<field-name>name</field-name>
</cmp-field>
<primkey-field>id</primkey-field>
</entity>

<entity >
<description><![CDATA[]]></description>

<ejb-name>RelationFirst</ejb-name>

<home>test.cmp.RelationFirstHome</home>
<remote>test.cmp.RelationFirst</remote>
<local-home>test.cmp.RelationFirstLocalHome</local-home>
<local>test.cmp.RelationFirstLocal</local>

<ejb-class>test.cmp.RelationFirstCMP</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>first</abstract-schema-name>
<cmp-field >
<description><![CDATA[Returns the id]]></description>
<field-name>id</field-name>
</cmp-field>
<cmp-field >
<description><![CDATA[Returns the name]]></description>
<field-name>name</field-name>
</cmp-field>
<primkey-field>id</primkey-field>
</entity>
</enterprise-beans>

<relationships >
<ejb-relation >
<ejb-relation-name>twoRelation</ejb-relation-name>

<ejb-relationship-role>
<ejb-relationship-role-name>first-second</ejb-relationship-role-name>
<multiplicity>One</multiplicity>
<relationship-role-source >
<ejb-name>RelationFirst</ejb-name>
</relationship-role-source>
<cmr-field >
<cmr-field-name>relationSec</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>

<ejb-relationship-role>
<ejb-relationship-role-name>second-first</ejb-relationship-role-name>
<multiplicity>Many</multiplicity>
<relationship-role-source >
<ejb-name>RelationSecond</ejb-name>
</relationship-role-source>
</ejb-relationship-role>

</ejb-relation>
</relationships>
<assembly-descriptor>
</assembly-descriptor>
</ejb-jar>
在没有设置关联之前可以部署成功，可设置关联后就报错。我也在库表中设置了主外键，为什么还部署不成功？
org.jboss.deployment.DeploymentException: Atleast one role of a foreign-key mapped relationship must have key fields (or
<primkey-field> is missing from ejb-jar.xml): ejb-relation-name=twoRelation
at org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCRelationMetaData.<init>(JDBCRelationMetaData.java:347)
at org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCApplicationMetaData.<init>(JDBCApplicationMetaData.java:470)
at org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCXmlFileLoader.load(JDBCXmlFileLoader.java:75)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.loadJDBCEntityMetaData(JDBCStoreManager.java:706)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.initStoreManager(JDBCStoreManager.java:409)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.start(JDBCStoreManager.java:357)
at org.jboss.ejb.plugins.CMPPersistenceManager.start(CMPPersistenceManager.java:152)
at org.jboss.ejb.EntityContainer.startService(EntityContainer.java:342)
at org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:976)

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