SOA 服务使用 spring 获取空 ejb 实例

Question

我有一个实现 apache cxf web 服务和 ejb 对象的 maven 项目，我正在尝试使用 spring 注入 ejb 实例，当我运行程序时， spring container returns 将 ejb bean 作为 null。我不明白如何将 ejb 实现与 spring bean 联系起来。

该项目有一个 apache cxf 实现，这样：

ServiceBindingImpl

@WebService(endpointInterface = "cl.flying.binding.ServiceBinding")
public class ServiceBindingImpl implements ServiceBinding { 
    private ServiceBusinessLocal serviceEjb
    public void setServiceEjb(ServiceBusinessLocal serviceEjb) {
        this.serviceEjb = serviceEjb
    }
    public String sayHello(String request) {
        return serviceEjb.sayHello(request);
    }
}
</pre>

为了实现DI，它还有一个spring配置，applicationContext.xml

<bean id="serviceEjb"
    class="org.springframework.ejb.access.LocalStatelessSessionProxyFactoryBean" scope="request">
    <property name="jndiName" value="ejb/ServiceBusinessImpl" />
    <property name="businessInterface" value="cl.service.business.ServiceBusinessLocal" />
    <property name="resourceRef" value="true" />
</bean>
<bean id="ServiceController" class="cl.flying.binding.ServiceBindingImpl">
    <property name="serviceEjb" ref="serviceEjb" />
</bean>




也就是业务层，Stateless ejb实现：
@Stateless(mappedName="ejb/ServiceBusiness")
public class ServiceBusinessImpl implements ServiceBusinessLocal
    public String sayHello(String request) {
        return "hello: " + request;
    }
}
</pre>

如何实例化 ejb 对象？

Answer 1

这是我以前用作部分 POC 的 bean 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">

    <jee:remote-slsb id="calculatorRemote" business-interface="com.kp.swasthik.remote.CalculatorRemote" jndi-name="java:kp-ejb/Calculator!com.kp.swasthik.remote.CalculatorRemote" lookup-home-on-startup="true" >
        <jee:environment>
             java.naming.factory.initial=org.jboss.naming.remote.client.InitialContextFactory
             java.naming.provider.url=http-remoting://localhost:8080
             jboss.naming.client.ejb.context=true
             java.naming.security.principal=username
             java.naming.security.credentials=password
        </jee:environment>
    </jee:remote-slsb>

    <context:component-scan base-package="com.kp.swasthik.jaxws"></context:component-scan>

    <util:properties id="remoteRef">
        <prop key="java.naming.factory.initial">org.jboss.naming.remote.client.InitialContextFactory</prop>
        <prop key="java.naming.provider.url">remote://localhost:4447</prop>
        <prop key="java.naming.factory.url.pkgs">org.jboss.ejb.client.naming</prop>
    </util:properties>

</beans>

并如下所示注入 bean。

@Service
@WebService
public class KPService {

    @Autowired
    CalculatorRemote calc;

    @WebMethod
    public int add(int a, int b){
        return calc.add(a, b);
    }


    @WebMethod
    public Result subtract(Input num){
         return calc.subtract(num);
    }

}

注意：以上配置适用于 Wildfly/JBOSS EAP，您可能需要根据您的应用服务器进行相应更改

SOA 服务使用 spring 获取空 ejb 实例

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