java 在 Weblogic 10.xx 上使用 InitialContext 查找 EJB
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Lookup EJB using InitialContext on Weblogic 10.x.x
提问by kardanov
Could you please tell me how to lookup EJB on Weblogic?
I have following bean:
你能告诉我如何在 Weblogic 上查找 EJB 吗？
我有以下豆子：
@Stateless
@EJB(name = "DataAccess", beanInterface = DataAccessLocal.class)
public class DataAccess implements DataAccessLocal {
...
}
I need this bean in other class which is not part of managed content (just simple class), so I guess it should be done like this:
我在其他不属于托管内容的类（只是简单的类）中需要这个 bean，所以我想应该这样做：
DataAccessLocal dataAccess = DataAccessLocal.class.cast((new InitialContext()).lookup("%SOME_JNDI_NAME%"));
The question is what should be used as %SOME_JNDI_NAME% in case of Weblogic 10.x.x AS?
Any help will be appreciated.
问题是在 Weblogic 10.xx AS 的情况下应该使用什么作为 %SOME_JNDI_NAME%？
任何帮助将不胜感激。
回答by Jeff West
I would update your EJB class to look like this:
我会将您的 EJB 类更新为如下所示：
@Stateless(name="DataAccessBean", mappedName="ejb/DataAccessBean")
@Remote(DataAccessRemote.class)
@Local(DataAccessLocal.class)
public class DataAccess implements DataAccessLocal, DataAccessRemote {
...
}
Looking up the EJB from a class deployed in the same EAR (using the local interface):
从部署在同一 EAR 中的类中查找 EJB（使用本地接口）：
InitialContext ctx = new InitialContext(); //if not in WebLogic container then you need to add URL and credentials.
// use <MAPPED_NAME>
Objet obj = ctx.lookup("java:comp/env/ejb/DataAccessBean");
EJB injection is usually preferred, and you can do it as follows:
EJB 注入通常是首选，您可以按如下方式进行：
@EJB(name="DataAccessBean")
DataAccessLocal myDataAccessBean;
If you are trying to use the EJB remotely then you will need to use the remote interface and the following JNDI name:
如果您尝试远程使用 EJB，那么您将需要使用远程接口和以下 JNDI 名称：
DataAccessBean#<package>.DataAccessRemote
