救命：只有这些分了，老问题：jb5&weblogic6.1beta搭配，ejb开发？另：用driver,jdbc开发最简单的数据库有错误？

用jb5,weblogic6.1beta，同时保留borland appserver4.5,然后默认所有操作，完成最简单的ejb project,但是make project或group时，总是有错误：
Specification compliance error in "ejbGrp.jar": Please run Verify in the EJB DD Editor
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" A session bean's implementation class must be an instance of javax.ejb.SessionBean: ejbprj.HelloBean
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" Could not find a bean method called: remove corresponding to: public abstract void javax.ejb.EJBObject.remove() throws java.rmi.RemoteException,javax.ejb.RemoveException
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" The remote interface must extend the javax.ejb.EJBRemote interface: ejbprj.Hello
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" The home interface must extend the javax.ejb.EJBHome interface: ejbprj.HelloHome
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" Home interface can only have create and/or find methods: public abstract void javax.ejb.EJBHome.remove(javax.ejb.Handle) throws java.rmi.RemoteException,javax.ejb.RemoveException
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" Home interface can only have create and/or find methods: public abstract void javax.ejb.EJBHome.remove(java.lang.Object) throws java.rmi.RemoteException,javax.ejb.RemoveException
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" Home interface can only have create and/or find methods: public abstract javax.ejb.EJBMetaData javax.ejb.EJBHome.getEJBMetaData() throws java.rmi.RemoteException
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" Home interface can only have create and/or find methods: public abstract javax.ejb.HomeHandle javax.ejb.EJBHome.getHomeHandle() throws java.rmi.RemoteException
"ejbGrp.ejbgrp": Stateless Session Bean: "Hello" The method: public abstract ejbprj.Hello ejbprj.HelloHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException must throw: javax.ejb.CreateException
我用ejb DD editor,进行verify，没有错误？
是不是jb5,appserver4.5,weblogic6.1不能同时用？
(我的xml文件是自动生成3个，ejb-jar,inprise的,weblogic的。)


另外：还有一个问题：我用i-net提供的一个sqlserver的驱动，optra2000.jar，进行数据库访问，但总是出错：
D:\jbuilder5\jdk1.3\bin\java.exe ClassicDriver
Working Directory - F:\environment\jdbc_driver\driver\sampleClass Path - .;d:\jdk1.3\lib\tools.jar;d:\jdk1.3\lib\dt.jar;d:\jbuilder5\jdk1.3\lib\tools.jar;d:\jbuilder5\jdk1.3\lib\dt.jar;f:\environment\jdbc_driver\driver\Opta2000.jar;d:\kawa\kawaclasses.zip;d:\jbuilder5\jdk1.3\jre\lib\rt.jar;d:\jbuilder5\jdk1.3\jre\lib\i18n.jar
DriverManager.initialize: jdbc.drivers = null JDBC DriverManager initialized registerDriver: driver[className=com.inet.tds.TdsDriver,com.inet.tds.TdsDriver@25ab41] DriverManager.getConnection("jdbc:inetdae7:Jave:1433") trying driver[className=com.inet.tds.TdsDriver,com.inet.tds.TdsDriver@25ab41] SQL Server 7 mode SQLException: SQLState(01000) vendor code(18452) java.sql.SQLException: []用户 'sa' 登录失败。原因: 未与信任 SQL Server 连接相关联。 at com.inet.tds.c.a(Unknown Source) at com.inet.tds.c.<init>(Unknown Source) at com.inet.tds.TdsDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:517) at java.sql.DriverManager.getConnection(DriverManager.java:177) at ClassicDriver.main(ClassicDriver.java:43) getConnection failed: java.sql.SQLException: []用户 'sa' 登录失败。原因: 未与信任 SQL Server 连接相关联。 java.sql.SQLException: []用户 'sa' 登录失败。原因: 未与信任 SQL Server 连接相关联。 at com.inet.tds.c.a(Unknown Source) at com.inet.tds.c.<init>(Unknown Source) at com.inet.tds.TdsDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:517) at java.sql.DriverManager.getConnection(DriverManager.java:177) at ClassicDriver.main(ClassicDriver.java:43) Process Exit...
程序片断：
{

public static void main(String[] argv){
String url = "jdbc:inetdae7:Jave:1433"; // use your hostname and port number here
String login = "sa"; // use your login here
String password = ""; // use your password here

try {
DriverManager.setLogStream(System.out); // to create more info
// for technical support

Class.forName("com.inet.tds.TdsDriver").newInstance();
//or
//new com.inet.tds.TdsDriver();


//set a timeout for login and query
DriverManager.setLoginTimeout(10);


//open a connection to the database
Connection connection = DriverManager.getConnection(url,login,password);

//to get the driver version
DatabaseMetaData conMD = connection.getMetaData();
System.out.println("Driver Name:\t" + conMD.getDriverName());
System.out.println("Driver Version:\t" + conMD.getDriverVersion());

//select a database
connection.setCatalog( "JaveDB" );

//create a statement
Statement st = connection.createStatement();

//execute a query
ResultSet rs = st.executeQuery("SELECT * FROM table1");