求助各位老大

本人刚学习J2EE，做了一个小测试，部署EJB时发现错误，当数据库主键类型是int
时，没有问题，但是改成varchar类型就出错，求助！！！，谢谢。
public static void main(String[] args) {
        Film1TestClient1 client = new Film1TestClient1();
        // Use the getHome() method of the client object to call Home interface
        // methods that will return a Remote interface reference.  Then
        // use that Remote interface reference to access the EJB.
        Film1RemoteHome home=client.getHome();
        try {
            Film1Remote filmObj = home.findByPrimaryKey("03");
            System.out.println("姓名：" + fomat(filmObj.getFilmName()));
        } catch (Exception ex) {
             ex.printStackTrace();
        }

错误提示：
"EJBModule1.jar": C:\bea\jdk142_08\bin\javaw -classpath "C:\bea\weblogic81\server\lib\weblogic_sp.jar;C:\bea\weblogic81\server\lib\weblogic.jar;C:\bea\weblogic81\server\lib\webservices.jar;"  weblogic.appc -keepgenerated -forceGeneration -compiler C:/bea/jdk142_08/bin/javac D:/entiBean/EJBModule1.jar.jar -output D:/entiBean/EJBModule1.jar

"EJBModule1.jar": [J2EE:160119]Appc is unable to process the file 'D:\entiBean\EJBModule1.jar.jar'. The following error occurred:
"EJBModule1.jar": [EJB:011017]Error while reading 'META-INF/weblogic-cmp-rdbms-jar.xml'. The error was:
"EJBModule1.jar":  
"EJBModule1.jar": In the RDBMS CMP bean 'Film1', when Automatic Key Generation is enabled, the Primary Key class must be java.lang.Integer or java.lang.Long.
"EJBModule1.jar": .
"EJBModule1.jar":     at weblogic.ejb20.ejbc.EJBCompiler.doCompile(EJBCompiler.java:255)
"EJBModule1.jar":     at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:476)
"EJBModule1.jar":     at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:387)
"EJBModule1.jar":     at weblogic.appc.compileEJB(appc.java:809)
"EJBModule1.jar":     at weblogic.appc.compileEJB(appc.java:778)
"EJBModule1.jar":     at weblogic.appc.compileInput(appc.java:465)
"EJBModule1.jar":     at weblogic.appc.runBody(appc.java:186)
"EJBModule1.jar":     at weblogic.utils.compiler.Tool.run(Tool.java:192)
"EJBModule1.jar":     at weblogic.utils.compiler.Tool.run(Tool.java:147)
"EJBModule1.jar":     at weblogic.appc.main(appc.java:1037)
"EJBModule1.jar": [EJB:011017]Error while reading 'META-INF/weblogic-cmp-rdbms-jar.xml'. The error was:。。。。。。。。。
----------------解决方案--------------------------------------------------------
建议到J2EE版去问问
----------------解决方案--------------------------------------------------------