findbyprimarykey的问题

[Morgan_ma]

我的实体bean部署成功了。建立了个test client。
main中这样写：
try{
EmployeesTestClient1 client = new EmployeesTestClient1();

EmployeesRemoteHome home=client.getHome();
EmployeesRemote r=home.findByPrimaryKey(new Integer(1));

System.out.println(r.getFirstName());
System.out.println(r.getLastName());
System.out.println(r.getTitle());
System.out.println(r.getTitleOfCourtesy());
System.out.println(r.getBirthDate());
System.out.println(r.getHireDate());
System.out.println(r.getAddress());
System.out.println(r.getCity());
System.out.println(r.getRegion());
System.out.println(r.getPostalCode());
System.out.println(r.getCountry());
System.out.println(r.getHomePhone());
System.out.println(r.getExtension());
System.out.println(r.getNotes());
System.out.println(r.getPhoto());
System.out.println(r.getPhotoPath());

}catch(RemoteException ex) { ex.printStackTrace(); }
catch(FinderException ex) { ex.printStackTrace(); }

－－－－－－－－－－－－－－－gethome函数-----------------------------

EmployeesRemoteHome getHome()
{ return employeesRemoteHome; }
-----------------------------------------------------------------------
出错信息：
javax.ejb.FinderException: Exception raised in findByPrimaryKey

java.io.StreamCorruptedException: invalid stream header

java.io.StreamCorruptedException: invalid stream header

at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:737)

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:253)

at weblogic.ejb20.cmp.rdbms.RDBMSObjectInputStream.<init>(RDBMSObjectInputStream.java:15)

at testsql.Employees_kkel5c__WebLogic_CMP_RDBMS.__WL_loadGroup0FromRS(Employees_kkel5c__WebLogic_CMP_RDBMS.java:1537)

at testsql.Employees_kkel5c__WebLogic_CMP_RDBMS.ejbFindByPrimaryKey(Employees_kkel5c__WebLogic_CMP_RDBMS.java:1091)

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 weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.findByPrimaryKey(RDBMSPersistenceManager.java:232)

at weblogic.ejb20.manager.BaseEntityManager.findByPrimaryKey(BaseEntityManager.java:1428)

at weblogic.ejb20.manager.BaseEntityManager.remoteFindByPrimaryKey(BaseEntityManager.java:1371)

at weblogic.ejb20.internal.EntityEJBHome.findByPrimaryKey(EntityEJBHome.java:370)

at testsql.Employees_kkel5c_HomeImpl.findByPrimaryKey(Employees_kkel5c_HomeImpl.java:132)

at testsql.Employees_kkel5c_HomeImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:407)

at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:356)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:353)

at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:123)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:351)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:151)



at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:108)

at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:284)

at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244)

at testsql.Employees_kkel5c_HomeImpl_810_WLStub.findByPrimaryKey(Unknown Source)

at testsql.EmployeesTestClient1.main(EmployeesTestClient1.java:1313)

Caused by: javax.ejb.FinderException: Exception raised in findByPrimaryKey

java.io.StreamCorruptedException: invalid stream header

java.io.StreamCorruptedException: invalid stream header

at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:737)

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:253)

at weblogic.ejb20.cmp.rdbms.RDBMSObjectInputStream.<init>(RDBMSObjectInputStream.java:15)

at testsql.Employees_kkel5c__WebLogic_CMP_RDBMS.__WL_loadGroup0FromRS(Employees_kkel5c__WebLogic_CMP_RDBMS.java:1537)

at testsql.Employees_kkel5c__WebLogic_CMP_RDBMS.ejbFindByPrimaryKey(Employees_kkel5c__WebLogic_CMP_RDBMS.java:1091)

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 weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.findByPrimaryKey(RDBMSPersistenceManager.java:232)

at weblogic.ejb20.manager.BaseEntityManager.findByPrimaryKey(BaseEntityManager.java:1428)

at weblogic.ejb20.manager.BaseEntityManager.remoteFindByPrimaryKey(BaseEntityManager.java:1371)

at weblogic.ejb20.internal.EntityEJBHome.findByPrimaryKey(EntityEJBHome.java:370)

at testsql.Employees_kkel5c_HomeImpl.findByPrimaryKey(Employees_kkel5c_HomeImpl.java:132)

at testsql.Employees_kkel5c_HomeImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:407)

at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:356)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:353)

at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:123)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:351)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:151)



at testsql.Employees_kkel5c__WebLogic_CMP_RDBMS.ejbFindByPrimaryKey(Employees_kkel5c__WebLogic_CMP_RDBMS.java:1122)

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 weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.findByPrimaryKey(RDBMSPersistenceManager.java:232)

at weblogic.ejb20.manager.BaseEntityManager.findByPrimaryKey(BaseEntityManager.java:1428)

at weblogic.ejb20.manager.BaseEntityManager.remoteFindByPrimaryKey(BaseEntityManager.java:1371)

at weblogic.ejb20.internal.EntityEJBHome.findByPrimaryKey(EntityEJBHome.java:370)

at testsql.Employees_kkel5c_HomeImpl.findByPrimaryKey(Employees_kkel5c_HomeImpl.java:132)

at testsql.Employees_kkel5c_HomeImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:407)

at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:356)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:353)

at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:123)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:351)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:151)

[Morgan_ma]

急啊。。。大家帮帮忙

[Morgan_ma]

up up up

[Morgan_ma]

upup急。。。

[pirateRocy]

好象错误由 getHome()方法引起的。
因为一般的 home接口都是通过 JNDI 的方式来返回的。

[saviourlee]

这位大哥竟然和我前天的bug一样，折腾了我整整一天！
photo是BLOB数据，不能通过CMP访问
解决办法只有将schema的BLOB字段全部删掉
或者改为BMP。

给我分吧。 我现在正愁没分哪 :)

[saviourlee]

还包括notes字段也要删除

[Morgan_ma]

是不是自己添加一个find方法，然后写个ql查询？

[saviourlee]

自己编find的话结果是一样的。
确实是那两个字段的问题呀。
你不用删掉DBMS中那两个column，只要删掉schema中的就行。
若你实在要读那两个字段的话，只有借助bmp，通过序列化可以解决。

不出意料的话，你用的是MS-SQL Server 2000的Northwind数据库(sample dbms)巴
而且是Employees这张表 :)

[zyymmm]

不用findByPrimaryKey,自己再写个find方法试试.

[Morgan_ma]

谢谢提示，我试试看。。。

[pleonheart]

什么意思？有保留字吗？

[Morgan_ma]

太感谢了。。。分全给你！

[Morgan_ma]

to pirateRocy(海盗罗西):能否说得详细点，我是新手。不过我在session bean中也是这样调用没有问题得。。。