java bean中连接Weblogic DataSource失败！虚心学习，焦急等待！·

[rzg]

我在Weblogic7种配置Connection pool，然后添加TxDataSource,
DataSource的JNDI名称为：“petstore”.然后在一个bean中用
自定义函数获得连接。

我的代码如下：

public Connection getConnection()throws Exception {
System.out.println("Connecting to database...");
Context ctx = null;
DataSource ds = null;
try
{
ctx = new InitialContext(System.getProperties());
ds = (DataSource)ctx.lookup("petstore");
return ds.getConnection();
}
catch(Exception e)
{
System.err.println("Couldn't connect to datasource.");
e.printStackTrace();
throw new Exception(e.toString());
}
}
当调用客户端时，错误提示：
setEntityContext() called!
Connecting to database...
Couldn't connect to datasource.
javax.naming.NameNotFoundException: Unable to resolve 'petstore' Resolved: '' Un
resolved:'petstore' ; remaining name 'petstore'
at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:17
4)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke
....

[orant]

错误的原因是:client不能找到EJB的jndi name.
解决方法：检查EJB JAR file的部署 ．
具体步骤：（To check the　deployment, start WebLogic console, find the EJB module name from Deployments ->EJB,
click on the EJB Module name, then click Deploy from the right-side window. If the JAR　file is deployed properly, you will see a deployment status as true in the WebLogic console.
Also click on Monitoring tab, and click the corresponding links to see if your EJB is running.）这用英文写出来的，比较清楚

[alienbat]

不会吧？
请运行程序前先运行你配置好的那个server。