java – WebSphere 7. Inject EJBs from another application

I tried to inject EJB with @ EJB annotation:

>When I inject an EJB into another EJB in the same ear, it works normally. > When I inject an EJB from another ear into another EJB server, I get an exception:

I am using WebSphere 7 and EJB 3.0 When I do a JNDI search myself, it works normally How do I let the container know where to inject remote beans?

myapp1. Ear contains the following: myapp1 Jar (where is EJB)

myapp1 EJB：

package com.mycompany.myapp1.ejb.test1;

@Remote
public interface HelloEjb1 { 
    public String sayHello();
}

EJB Impl：

package com.mycompany.myapp.ejb.test1;

@Stateless
public class HelloEjbImpl1 implements HelloEjb1 {

    @EJB
 HelloEjb2 helloEjb2;

    @Override
    public String sayHello() {
        return HelloEjb2.sayHello();
    }
}

myapp2. Ear contains the following: myapp2 Jar (where is EJB)

myapp2 EJB：

package com.mycompany.myapp2.ejb.test2;

@Remote
public interface HelloEjb2 { 
    public String sayHello();
}

EJB Impl：

package com.mycompany.myapp2.ejb.test2;

@Stateless
public class HelloEjbImpl2 implements HelloEjb2 {

    @Override
    public String sayHello() {
        return "Hello";
    }
}

Solution

Specify the binding when deploying the application (1,2), or include meta-inf / ibm-ejb-jar-bnd.exe in the EJB module of the client (myapp1) xml. It looks like this:

<ejb-jar-bnd
    xmlns="http://websphere.ibm.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://websphere.ibm.com/xml/ns/javaee http://websphere.ibm.com/xml/ns/javaee/ibm-ejb-jar-bnd_1_0.xsd"
    version "1.0">
  <session name="HelloEjbImpl1">
    <ejb-ref name="com.mycompany.myapp.ejb.test1/helloEjb2"
        binding-name="myapp2/myapp2.jar/HelloEjbImpl2#com.mycompany.myapp1.ejb.test1.HelloEjb1"
  </session>  
</ejb-jar-bnd>

If you use @ EJB (name = "myrefname"), you can simplify EJB ref name = "..." If your myapp2 Jar contains < interface class = "..." binding-name =“...”/> The binding name can be simplified Components