对照一下,看看有没有没对应上的ejb-jar.xml片段:
    <entity>
<ejb-name>Book</ejb-name>
<local-home>com.opensource.guestbook.BookHome</local-home>
<local>com.opensource.guestbook.Book</local>
<ejb-class>com.opensource.guestbook.BookBean</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>BookBean</abstract-schema-name>

<cmp-field>
<field-name>name</field-name>
</cmp-field>
<cmp-field>
<field-name>email</field-name>
</cmp-field>
<cmp-field>
<field-name>qq</field-name>
</cmp-field>
<cmp-field>
<field-name>posttime</field-name>
</cmp-field>
<cmp-field>
<field-name>comment</field-name>
</cmp-field>
<cmp-field>
<field-name>ip</field-name>
</cmp-field>
<cmp-field>
<field-name>action</field-name>
</cmp-field>

<primkey-field>name</primkey-field>

<query>
<query-method>
<method-name>findAll</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM BookBean AS a]]>
</ejb-ql>
</query>
</entity>weblogic-rdbms-jar.xml代码:<!DOCTYPE weblogic-rdbms-jar PUBLIC 
'-//BEA Systems, Inc.//DTD WebLogic 8.1.0 EJB RDBMS Persistence//EN'
'http://www.bea.com/servers/wls810/dtd/weblogic-rdbms20-persistence-810.dtd'><weblogic-rdbms-jar>
  <weblogic-rdbms-bean>
    <ejb-name>Book</ejb-name>
    <data-source-name>GuestBookDS</data-source-name>
    <table-map>
      <table-name>book</table-name>
  
  <field-map>
<cmp-field>name</cmp-field>
<dbms-column>name</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>email</cmp-field>
<dbms-column>email</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>qq</cmp-field>
<dbms-column>qq</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>posttime</cmp-field>
<dbms-column>posttime</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>comment</cmp-field>
<dbms-column>comment</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>ip</cmp-field>
<dbms-column>ip</dbms-column>
  </field-map>
  
  <field-map>
<cmp-field>action</cmp-field>
<dbms-column>action</dbms-column>
  </field-map>
    </table-map>
  </weblogic-rdbms-bean>
</weblogic-rdbms-jar>