tomcat - 从 Tomcat 连接到 JBoss 7.1.1 中的 EJB 时，JNDI 查找失败

Question

有几种方法可以查找 EJB

我可以使用此查找连接到我的 ejb 服务器，但仅当我使用 ConsoleClient 时。

 "ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + viewClassName)

当我在 tomcat 应用程序服务器（spring mvc 项目）上尝试此查找时，此查找将不起作用。Jboss 以 ClassNotFoundException 响应。

我认为必须有另一个 jndi 查找名称？不幸的是，我在网上找不到任何有用的信息。

编辑：

我的控制器

@RequestMapping(value = "login", method = RequestMethod.POST)
public LoginBeanRemote logIn(){

    final Hashtable jndiProperties = new Hashtable();
    jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");

    Context context = null;
    try {
        context = new InitialContext(jndiProperties);
    } catch (NamingException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }


    final String appName = "foo_business";
    final String moduleName = "foo_business";
    final String distinctName = "";
    final String beanName = "LoginBean";

    // gesucht ist die klasse vom jboss , nicht die im frontend
    final String viewClassName = "foo.business.login.LoginBeanRemote";
    System.out.println("Looking EJB via JNDI ");
    System.out.println("ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + viewClassName);

    try {
        return (LoginBeanRemote) context.lookup("ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + viewClassName);
    } catch (NamingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return null;


}

我在我的 spring 项目根文件夹中放置了一个 jboss-ejb-client.properties 文件

endpoint.name=foo_business //项目名称
remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false
remote.connections=default
remote.connection.default.host=127.0.0.1
remote.connection.default.port=第4447
章

我的 LoginBean 的第一部分（在我的 JBOSS 中部署为 JAR 文件；

@Stateful
@Remote(LoginBeanRemote.class)
public class LoginBean implements LoginBeanRemote {

生成的 EJB 查找名称：

ejb:foo_business/foo_business//LoginBean!foo.business.login.LoginBeanRemote

错误：

javax.naming.NamingException: Could not load ejb proxy class recc.business.login.LoginBeanRemote [Root exception is java.lang.ClassNotFoundException: recc.business.login.LoginBeanRemote]
at org.jboss.ejb.client.naming.ejb.EjbNamingContext.createEjbProxy(EjbNamingContext.java:108)
at org.jboss.ejb.client.naming.ejb.EjbNamingContext.lookup(EjbNamingContext.java:96)
at javax.naming.InitialContext.lookup(Unknown Source)
at recc.frontend.controller.UserController.logIn(UserController.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: recc.business.login.LoginBeanRemote
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at org.jboss.ejb.client.naming.ejb.EjbNamingContext.createEjbProxy(EjbNamingContext.java:106)
    ... 36 foo

编辑：

我将 ejb-project.jar 添加到我的类路径中。此外，我将 ejb 包添加到我的 spring 项目中并放在LoginBeanRemote那里。

到目前为止，项目没有响应 ClassNotFound 错误。当我调试创建的 LoginBeanRemote 时，它​​包含：

Proxy for remote EJB StatelessEJBLocator{appName='foo_business', moduleName='foo_business', distinctName='', beanName='LoginBean', view='interface foo.business.login.LoginBeanRemote'}

查找时也不例外。

    LoginBeanRemote remote = (LoginBeanRemote) context.lookup("ejb:"
                + appName + "/" + moduleName + "/" + distinctName + "/"
                + beanName + "!" + viewClassName);
        return remote;

当我尝试调用bean的函数时，会导致异常

System.out.println(remote.helloBean());

完整留言：

   Aug 30, 2013 11:26:21 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [appServlet] in context with path [/test] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: No EJB receiver available for handling [appName:foo_business,modulename:foo_business,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@c7c0866] with root cause
java.lang.IllegalStateException: No EJB receiver available for handling [appName:foo_business,modulename:foo_business,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@c7c0866
    at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:584)
    at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:119)
    at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181)
    at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136)
    at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121)
    at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
    at com.sun.proxy.$Proxy10.helloBean(Unknown Source)
    at foo.frontend.controller.UserController.logIn(UserController.java:167)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

编辑：我刚刚关闭了 JBoss 并出现了同样的错误。我认为与 Jboss 没有任何联系。

编辑：

我刚刚更新了我的代码：

    InitialContext context = null;
    try {
        final Properties initialContextProperties = new Properties();

        initialContextProperties.put(Context.INITIAL_CONTEXT_FACTORY,
                "org.jboss.naming.remote.client.InitialContextFactory");

        initialContextProperties.put(Context.PROVIDER_URL,
                "remote://localhost:4447");

        initialContextProperties.put(Context.URL_PKG_PREFIXES,
                "org.jboss.ejb.client.naming");

        initialContextProperties
                .put("jboss.naming.client.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT",
                        "false");

        initialContextProperties.put(Context.SECURITY_PRINCIPAL, "myapplicationrealmuser");
        initialContextProperties
                .put(Context.SECURITY_CREDENTIALS, "mypass");

        EJBClientConfiguration cc = new PropertiesBasedEJBClientConfiguration(
                initialContextProperties);
        ContextSelector<EJBClientContext> selector = new ConfigBasedEJBClientContextSelector(
                cc);
        EJBClientContext.setSelector(selector);

        context = new InitialContext(initialContextProperties);
    } catch (NamingException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }


    System.out.println("Looking EJB via JNDI ");

    try {

        LoginBeanRemote remote = (LoginBeanRemote) context
                .lookup("java:global/foo_business/LoginBean!foo.business.login.LoginBeanRemote");
        System.out.println(remote.helloBean());
    } catch (NamingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return null;

这将在查找期间返回 NameNotFoundException。我尝试了各种查找名称，但它不会像这样工作。我错过了一些配置吗？

错误：

javax.naming.NameNotFoundException: global/foo_business/LoginBean!foo.business.login.LoginBeanRemote -- service jboss.naming.context.java.jboss.exported.global.foo_business."LoginBean!foo.business.login.LoginBeanRemote"
    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:97)
    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:178)
    at org.jboss.naming.remote.protocol.v1.Protocol$1.handleServerMessage(Protocol.java:127)
    at org.jboss.naming.remote.protocol.v1.RemoteNamingServerV1$MessageReciever$1.run(RemoteNamingServerV1.java:73)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

JBOSS 控制台 JNDI 信息：

编辑：

我将 EJB 部署为 EAR 文件，仍然收到相同的异常

javax.naming.NameNotFoundException: global/foo_business_ear-ear/foo_business_ear-ejb/LoginBean!foo.business.login.LoginBeanRemote -- service jboss.naming.context.java.jboss.exported.global.foo_business_ear-ear.foo_business_ear-ejb."LoginBean!foo.business.login.LoginBeanRemote"
    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:97)
    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:178)
    at org.jboss.naming.remote.protocol.v1.Protocol$1.handleServerMessage(Protocol.java:127)
    at org.jboss.naming.remote.protocol.v1.RemoteNamingServerV1$MessageReciever$1.run(RemoteNamingServerV1.java:73)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

ERROR: org.jboss.naming.remote.protocol.v1.RemoteNamingStoreV1 - Channel end notification received, closing channel Channel ID ef1b671f (outbound) of Remoting connection 6af39445 to localhost/127.0.0.1:4447

Answer 1

Tomcat 作为客户端必须被视为不在同一个应用服务器容器中运行的客户端。因此，您必须将所有相关的类/接口打包到部署在 Tomcat 上的 .war 文件中。

查看堆栈跟踪：JBoss服务器确实响应，是 JBoss客户端报告缺少一个类：

在 org.jboss.ejb。客户端.naming.ejb.EjbNamingContext.createEjbProxy

实际的错误（缺失的类）被打包在一个NamingException.

因此，您必须将相关的类放入 Tomcat 的 .war 文件中：这可能是您的远程接口recc.business.login.LoginBeanRemote。

我总是将 EJB 类（实现）和它们的接口放在两个单独的包中，并且 EJB 客户端获取一个仅包含接口（可能还有异常）的 .jar 文件。因此，由接口和可能的异常组成的 .jar 被打包到客户端的 .war 中。

---

一般来说，如果独立客户端无法工作，则必须检查这些项目

• 是jboss-client.jar在类路径中吗？
• 远程接口是否在类路径中？
• 属性是否InitialContext齐全？
• JNDI 名称是否正确？这个 JNDI 名称真的可以从客户端看到吗？

---

附录： 的属性InitialContext：

    final Properties initialContextProperties = new Properties();

    initialContextProperties.put(Context.INITIAL_CONTEXT_FACTORY,
            "org.jboss.naming.remote.client.InitialContextFactory");

    initialContextProperties.put(Context.PROVIDER_URL,
            "remote://localhost:4447");

    initialContextProperties.put(Context.URL_PKG_PREFIXES,
            "org.jboss.ejb.client.naming");

    // See .../jboss-7/standalone/configuration/application-users.properties
    initialContextProperties.put(Context.SECURITY_PRINCIPAL, "user");
    initialContextProperties.put(Context.SECURITY_CREDENTIALS, "password");

我已经测试了这些设置，并得到了JBoss AS7 JNDI & EJB 3.1 Naming changes的确认。既不需要 forjndi.properties也不需要 for jboss-ejb-client.properties。

相关：JBoss AS7 JNDI 参考

Answer 2

我看到你提到@Stateful 作为你类的注解 - LoginBeanRemote。

但是，您正在尝试对无状态类进行循环 - ejb:foo_business/foo_business//LoginBean!foo.business.login.LoginBeanRemote

您可以尝试像这样查找 - ejb:foo_business/foo_business//LoginBean!foo.business.login.LoginBeanRemote**?stateful**

这已解释here