EJB 无法从代码中查找 JDBC DataSource res-ref
EJB fails to lookup JDBC DataSource res-ref from code
我有一个使用 jBoss EAP 6.[3,4] 测试的自动启动 EJB，但它无法查找部署描述符中定义的 JDBC 资源引用，异常；
Caused by: javax.ejb.EJBException: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.
comp."DFETL_EAR-16.0.0-SNAPSHOT"."df-extract-16.0.0-SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:191)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:282)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:367)
at org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:66)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:70) [jboss-invocation-1.1.2.Final-r
edhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Fina
l-redhat-1]
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:162) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.F
inal-redhat-21]
... 12 more
Caused by: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp."DFETL_EAR-16.0.0-S
NAPSHOT"."df-extract-16.0.0-SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at com.temenos.technology.dataframework.extract.ExtractStartupBean.initialize(ExtractStartupBean.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_17]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_17]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_17]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_17]
at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:96)
[jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.component.session.SessionBeanSetSessionContextMethodInvocationInterceptor.processInvocation(SessionBeanSetSessionContextM
ethodInvocationInterceptor.java:56)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.ManagedReferenceFieldInjectionInterceptorFactory$ManagedReferenceFieldInjectionInterceptor.processInvocation(Mana
gedReferenceFieldInjectionInterceptorFactory.java:109) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.ComponentInstantiatorInterceptor.processInvocation(ComponentInstantiatorInterceptor.java:76) [jboss-as-ee-7.5.0.F
inal-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.5.0.Final-redha
t-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:280)
... 21 more
Caused by: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp."DFETL_EAR-16.0.0-SNAPSHOT"."df-extract-16.0.0-
SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:104) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final
-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:197) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:174) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.InitialContext$DefaultInitialContext.lookup(InitialContext.java:245) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.F
inal-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:183) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:179) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at javax.naming.InitialContext.lookup(InitialContext.java:411) [rt.jar:1.7.0_17]
at javax.naming.InitialContext.lookup(InitialContext.java:411) [rt.jar:1.7.0_17]
at com.temenos.technology.dataframework.extract.ExtractStartupBean.initialize(ExtractStartupBean.java:62)
... 42 more
14:15:30,832 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) JBAS014612: Operation ("full-replace-deployment") fa
iled - address: ([]) - failure description: {"JBAS014671: Failed services" => {"jboss.deployment.subunit.\"DFETL_EAR-16.0.0-SNAPSHOT.ear\".\"df-extrac
t-16.0.0-SNAPSHOT.jar\".component.ExtractStartupBean.START" => "org.jboss.msc.service.StartException in service jboss.deployment.subunit.\"DFETL_EAR-1
6.0.0-SNAPSHOT.ear\".\"df-extract-16.0.0-SNAPSHOT.jar\".component.ExtractStartupBean.START: java.lang.IllegalStateException: JBAS011048: Failed to con
struct component instance
Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: javax.ejb.EJBException: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.j
ava.comp.\"DFETL_EAR-16.0.0-SNAPSHOT\".\"df-extract-16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS
Caused by: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp.\"DFETL_EAR-16.
0.0-SNAPSHOT\".\"df-extract-16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS
Caused by: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp.\"DFETL_EAR-16.0.0-SNAPSHOT\".\"df-extract-
16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS"}}
14:15:30,864 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015974: Stopped subdeployment (runtime-name: df-extract-16.0.0-SNAPSH
OT.jar) in 9ms
14:15:30,864 INFO [org.jboss.as.server.deployment] (MSC service thread 1-4) JBAS015877: Stopped deployment DFETL_EAR-16.0.0-SNAPSHOT.ear (runtime-nam
e: DFETL_EAR-16.0.0-SNAPSHOT.ear) in 15ms
14:15:30,864 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report
JBAS014776: Newly corrected services:
service jboss.deployment.subunit."DFETL_EAR-16.0.0-SNAPSHOT.ear"."df-extract-16.0.0-SNAPSHOT.jar".moduleDeploymentRuntimeInformation (no longer
required)
JBAS014777: Services which failed to start: service jboss.deployment.subunit."DFETL_EAR-16.0.0-SNAPSHOT.ear"."df-extract-16.0.0-SNAPSHOT.jar".c
omponent.ExtractStartupBean.START
打包在 EAR 中的 AutoStart EJB 如下所示；
@Singleton
@Startup
public class ExtractStartupBean implements SessionBean {
@PostConstruct
public void initialize() {
try {
InitialContext context = new InitialContext();
DataSource ds = (DataSource) context.lookup("java:comp/env/jdbc/MyDS");
Connection conn = ds.getConnection();
System.out.println("JDBC Client Info : " + conn.getClientInfo());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@PreDestroy
public void terminate() {
// Do something....Not important right now...
}
}
ejb-jar.xml部署描述符
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<ejb-class>com.temenos.technology.dataframework.extract.ExtractStartupBean</ejb-class>
<session-type>Stateless</session-type>
<resource-ref>
<description>JDBC Pool Of DS</description>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</session>
</enterprise-beans>
</ejb-jar>
jboss-ejb3.xml部署描述符
<?xml version="1.0"?>
<jboss:ejb-jar xmlns:jboss="http://www.jboss.com/xml/ns/javaee"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="urn:ejb-pool:1.0"
xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-ejb3-2_0.xsd
http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd"
version="3.1" impl-version="2.0">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<resource-ref>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<jndi-name>java:/jdbc/myDS</jndi-name>
</resource-ref>
</session>
</enterprise-beans>
</jboss:ejb-jar>
有趣的是部署工作正常......即我的 EJB 已成功部署且没有错误，这意味着它 jBoss Application Server 已成功找到 DataSource java:/jdbc/myDS 但是当我尝试在我的自动启动代码中访问它时它失败了！还只是在这里添加，如果我直接查找 JNDI（这是不需要的，因为它不能在 WebSphere、WebLogic 上工作），它会找到资源 OK。
我已经用其他 JCA 资源做过很多次了，从来没有遇到过问题，我想我可能错过了一些我无法确定的东西！
您的 EJB session-type 不是 Stateless，而是 Singleton:
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<ejb-class>com.temenos.technology.dataframework.extract.ExtractStartupBean</ejb-class>
<session-type>Singleton</session-type>
<init-on-startup>true</init-on-startup>
<resource-ref>
<description>JDBC Pool Of DS</description>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</session>
</enterprise-beans>
</ejb-jar>
此外，您需要匹配您的 ejb 名称：
@Singleton(name="DFExtractor")
@Startup
public class ExtractStartupBean implements SessionBean {
也就是说，如果您添加：
@Resource(name="jdbc/myDS")
private DataSource ds;
到您的 EJB 然后您将不再需要 ejb-jar.xml 文件。您仍然可以使用 jboss-ejb3.xml 来可移植地映射您的 JNDI 资源。
我有一个使用 jBoss EAP 6.[3,4] 测试的自动启动 EJB，但它无法查找部署描述符中定义的 JDBC 资源引用，异常；
Caused by: javax.ejb.EJBException: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.
comp."DFETL_EAR-16.0.0-SNAPSHOT"."df-extract-16.0.0-SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:191)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:282)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:367)
at org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:66)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:70) [jboss-invocation-1.1.2.Final-r
edhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Fina
l-redhat-1]
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:162) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.F
inal-redhat-21]
... 12 more
Caused by: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp."DFETL_EAR-16.0.0-S
NAPSHOT"."df-extract-16.0.0-SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at com.temenos.technology.dataframework.extract.ExtractStartupBean.initialize(ExtractStartupBean.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_17]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_17]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_17]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_17]
at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:96)
[jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.component.session.SessionBeanSetSessionContextMethodInvocationInterceptor.processInvocation(SessionBeanSetSessionContextM
ethodInvocationInterceptor.java:56)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.ManagedReferenceFieldInjectionInterceptorFactory$ManagedReferenceFieldInjectionInterceptor.processInvocation(Mana
gedReferenceFieldInjectionInterceptorFactory.java:109) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.ComponentInstantiatorInterceptor.processInvocation(ComponentInstantiatorInterceptor.java:76) [jboss-as-ee-7.5.0.F
inal-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-
redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.5.0.Final-redha
t-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-
1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:280)
... 21 more
Caused by: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp."DFETL_EAR-16.0.0-SNAPSHOT"."df-extract-16.0.0-
SNAPSHOT".ExtractStartupBean.env.jdbc.MyDS
at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:104) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final
-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:197) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:174) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.InitialContext$DefaultInitialContext.lookup(InitialContext.java:245) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.F
inal-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:183) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:179) [jboss-as-naming-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at javax.naming.InitialContext.lookup(InitialContext.java:411) [rt.jar:1.7.0_17]
at javax.naming.InitialContext.lookup(InitialContext.java:411) [rt.jar:1.7.0_17]
at com.temenos.technology.dataframework.extract.ExtractStartupBean.initialize(ExtractStartupBean.java:62)
... 42 more
14:15:30,832 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) JBAS014612: Operation ("full-replace-deployment") fa
iled - address: ([]) - failure description: {"JBAS014671: Failed services" => {"jboss.deployment.subunit.\"DFETL_EAR-16.0.0-SNAPSHOT.ear\".\"df-extrac
t-16.0.0-SNAPSHOT.jar\".component.ExtractStartupBean.START" => "org.jboss.msc.service.StartException in service jboss.deployment.subunit.\"DFETL_EAR-1
6.0.0-SNAPSHOT.ear\".\"df-extract-16.0.0-SNAPSHOT.jar\".component.ExtractStartupBean.START: java.lang.IllegalStateException: JBAS011048: Failed to con
struct component instance
Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: javax.ejb.EJBException: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.j
ava.comp.\"DFETL_EAR-16.0.0-SNAPSHOT\".\"df-extract-16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS
Caused by: java.lang.RuntimeException: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp.\"DFETL_EAR-16.
0.0-SNAPSHOT\".\"df-extract-16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS
Caused by: javax.naming.NameNotFoundException: env/jdbc/MyDS -- service jboss.naming.context.java.comp.\"DFETL_EAR-16.0.0-SNAPSHOT\".\"df-extract-
16.0.0-SNAPSHOT\".ExtractStartupBean.env.jdbc.MyDS"}}
14:15:30,864 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015974: Stopped subdeployment (runtime-name: df-extract-16.0.0-SNAPSH
OT.jar) in 9ms
14:15:30,864 INFO [org.jboss.as.server.deployment] (MSC service thread 1-4) JBAS015877: Stopped deployment DFETL_EAR-16.0.0-SNAPSHOT.ear (runtime-nam
e: DFETL_EAR-16.0.0-SNAPSHOT.ear) in 15ms
14:15:30,864 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report
JBAS014776: Newly corrected services:
service jboss.deployment.subunit."DFETL_EAR-16.0.0-SNAPSHOT.ear"."df-extract-16.0.0-SNAPSHOT.jar".moduleDeploymentRuntimeInformation (no longer
required)
JBAS014777: Services which failed to start: service jboss.deployment.subunit."DFETL_EAR-16.0.0-SNAPSHOT.ear"."df-extract-16.0.0-SNAPSHOT.jar".c
omponent.ExtractStartupBean.START
打包在 EAR 中的 AutoStart EJB 如下所示；
@Singleton
@Startup
public class ExtractStartupBean implements SessionBean {
@PostConstruct
public void initialize() {
try {
InitialContext context = new InitialContext();
DataSource ds = (DataSource) context.lookup("java:comp/env/jdbc/MyDS");
Connection conn = ds.getConnection();
System.out.println("JDBC Client Info : " + conn.getClientInfo());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@PreDestroy
public void terminate() {
// Do something....Not important right now...
}
}
ejb-jar.xml部署描述符
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<ejb-class>com.temenos.technology.dataframework.extract.ExtractStartupBean</ejb-class>
<session-type>Stateless</session-type>
<resource-ref>
<description>JDBC Pool Of DS</description>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</session>
</enterprise-beans>
</ejb-jar>
jboss-ejb3.xml部署描述符
<?xml version="1.0"?>
<jboss:ejb-jar xmlns:jboss="http://www.jboss.com/xml/ns/javaee"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="urn:ejb-pool:1.0"
xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-ejb3-2_0.xsd
http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd"
version="3.1" impl-version="2.0">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<resource-ref>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<jndi-name>java:/jdbc/myDS</jndi-name>
</resource-ref>
</session>
</enterprise-beans>
</jboss:ejb-jar>
有趣的是部署工作正常......即我的 EJB 已成功部署且没有错误，这意味着它 jBoss Application Server 已成功找到 DataSource java:/jdbc/myDS 但是当我尝试在我的自动启动代码中访问它时它失败了！还只是在这里添加，如果我直接查找 JNDI（这是不需要的，因为它不能在 WebSphere、WebLogic 上工作），它会找到资源 OK。
我已经用其他 JCA 资源做过很多次了，从来没有遇到过问题，我想我可能错过了一些我无法确定的东西！
您的 EJB session-type 不是 Stateless，而是 Singleton:
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
<enterprise-beans>
<session>
<ejb-name>DFExtractor</ejb-name>
<ejb-class>com.temenos.technology.dataframework.extract.ExtractStartupBean</ejb-class>
<session-type>Singleton</session-type>
<init-on-startup>true</init-on-startup>
<resource-ref>
<description>JDBC Pool Of DS</description>
<res-ref-name>jdbc/myDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</session>
</enterprise-beans>
</ejb-jar>
此外，您需要匹配您的 ejb 名称：
@Singleton(name="DFExtractor")
@Startup
public class ExtractStartupBean implements SessionBean {
也就是说，如果您添加：
@Resource(name="jdbc/myDS")
private DataSource ds;
到您的 EJB 然后您将不再需要 ejb-jar.xml 文件。您仍然可以使用 jboss-ejb3.xml 来可移植地映射您的 JNDI 资源。