Can't using weblogic's datapool in Tomcat?

Question

Hi everyone:
I deploy a datapool in weblogic8 successfully and I want to using the datapool in Tomcat4.But I can't using the datapool in Tomcat.I already copy the wlclient.jar to the directory "E:\Tomcat4\webapps\lyo\WEB-INF\lib" and I can use the namespace "weblogic.jndi.*".
The JNDI name of the datapool is jdbc/mysql in weblogic and I can see it in weblogic JNDI tree window. My jsp code is:
/////////////////////invokepool.jsp//////////////////////////////////////
String sql="select isbn,bookname,bookprice from cmpbook";
ResultSet rs=null;
Connection conn=null;
Statement stm=null;
try{ 
Properties pro=new Properties();
pro.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
pro.put(Context.PROVIDER_URL,"t3://localhost:7001");
Context ctx=new InitialContext(pro);
out.println("debug...");
DataSource ds=(DataSource)ctx.lookup("jdbc/mysql");     
conn=ds.getConnection();
stm=conn.createStatement();
rs=stm.executeQuery(sql);
}catch(Exception e){
     out.println(e.toString());
try{
while(rs.next()){
%>
<table bgcolor="red" align="center" border="1">
<tr>
<td>
<%=rs.getString("isbn")%>
</td>
<td>
<%=rs.getString("bookname")%>
</td>
<td>
<%=rs.getString("bookprice")%>
</td>
<%
Tomcat report error:"debug... java.rmi.MarshalException: CORBA MARSHAL 0 Maybe; nested exception is: org.omg.CORBA.MARSHAL: vmcid: 0x0 minor code: 0 completed: Maybe java.lang.NullPointerException java.lang.NullPointerException "
But what is the "vmcid"? :(
I also using the code "DataSource ds=(DataSource)ctx.lookup("java:comp/env/jdbc/mysql");"
But the Tomcat report error:
"debug... javax.naming.NameNotFoundException: Name jdbc is not bound in this Context java.lang.NullPointerException java.lang.NullPointerException "
Then the datapool monitor of weblogic show: connection---1.
It has a connection after I compile the jsp file.But why it can't display?
What's wrong? Thanks :rolleyes:

Answer 1

You means that I can't invoke JNDI name between different container?
But I can do this in weblogic6.I copy the wlclient.jar to c:\tomcat\common\lib and I test successfully.
In weblogic8 I test failed.:(
I think it should finish this without problem.Because in Tomcat I can invoke EJB(CMP)that runing in weblogic8 container through the JNDI name.The jndi name was setted in weblogic8.So I think it is probably invoke Weblogic's DataSource in Tomcat.
weblogic supply more support for its datapool including Monitor,Suspend control etc.
When I test it in Tomcat5.It remain report the error:
"java.rmi.MarshalException: CORBA MARSHAL 0 Maybe; nested exception is: org.omg.CORBA.MARSHAL: vmcid: 0x0 minor code: 0 completed: Maybe java.lang.NullPointerException java.lang.NullPointerException "
And my code is:
<%@ import="weblogic.jndi.*"%>
String sql="select * from bookinfo";
ResultSet rs=null;
Connection conn=null;
Statement stm=null;
try{ 
Properties pro=new Properties();
pro.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
pro.put(Context.PROVIDER_URL,"t3://localhost:7001");
Context ctx=new InitialContext(pro);
out.println("debug... weblogic!");
DataSource ds=(DataSource)ctx.lookup("jdbc/mysql");     
conn=ds.getConnection();
stm=conn.createStatement();
rs=stm.executeQuery(sql);
}catch(Exception e){
     out.println(e.toString());
try{
while(rs.next()){      
%>
<table bgcolor="red" align="center" border="1">
<tr>
<td>
<%=rs.getString("isbn")%>
</td>
<td>
<%=rs.getString("title")%>
</td>
<td>
<%=rs.getString("publishID")%>
</td>
Any idea?