BlogJava-追随Java-随笔分类-EJB

Have your application call my application{Geronimo message-driven beans, JCA resource adapters, and e-mail}

Harryson — Thu, 26 Oct 2006 06:16:00 GMT

https://www6.software.ibm.com/developerworks/education/os-ag-callme1/index.html
https://www6.software.ibm.com/developerworks/education/os-ag-callme2/
https://www6.software.ibm.com/developerworks/education/os-ag-callme3/

3部分介绍了怎样在Geronimo中部署ejb,怎样使用james(Email server),和他们相互协作工作.

注意:相关软件的版本(按照指南中的),不然可能会出错.

Harryson 2006-10-26 14:16 发表评论

Standardizing Java Persistence with the EJB3 Java Persistence API

Harryson — Mon, 24 Jul 2006 05:50:00 GMT

http://www.onjava.com/pub/a/onjava/2006/05/17/standardizing-with-ejb3-java-persistence-api.html
通过它可以理解到EJB3的持久化的操作是如此的方便,真正的POJO操作,真的减轻了程序员的负担,让程序员的精力都集中到业务逻辑中去.学习EJB3的难度也不算高,比起EJB2.0可以说一点都不难.EJB2.0最麻烦了,又要写配置描叙文件,写那多的接口,稍微一点错误就会让你晕很久的.不过我觉得你还是可以了解EJB2.0是怎样样子的,还要HIBERNATE是怎样子的,这样对你的理解会有很打的帮助的.^_^

Harryson 2006-07-24 13:50 发表评论

WSAD EJB CMP 指南

Harryson — Thu, 13 Jul 2006 07:50:00 GMT

用WSAD开发真的很方便.
下面的连接指导您进入EJB CMP,而且能够更加熟悉WSAD
https://www6.software.ibm.com/developerworks/education/websphere/0303_flood/flood.html

Harryson 2006-07-13 15:50 发表评论

eclipse+jbossIDE+jboss 运行ejb3

Harryson — Tue, 11 Jul 2006 03:16:00 GMT

在网上找了好久才看到<<菜鸟也玩EJB3之一我能异想天开吗?>>的文章,虽然简单,但也能让你明白一些,有空看看吧.
1)http://www.willbe.xinwen365.net/ejb3-1.htm
2)http://www.willbe.xinwen365.net/ejb3-2.htm

Harryson 2006-07-11 11:16 发表评论

运行EJB时出现如下的错误,晕

Harryson — Thu, 06 Jul 2006 08:34:00 GMT

部署成功,但在运行时提示java.lang.ClassCastException异常,不知道为什么?请那位指点一下,谢谢!

1Context context = new InitialContext();
2 Object ref = context.lookup("ejb/Fibo");
3home = (FiboHome) PortableRemoteObject.narrow(ref, FiboHome.class);

Harryson 2006-07-06 16:34 发表评论

部署EJB时出现如下的错误,郁闷!

Harryson — Thu, 06 Jul 2006 08:30:00 GMT

不知道为什么会出现如下的错误(org.jboss.deployment.DeploymentException: expected one display-name tag),那位能指点一下吗?谢谢!

16 : 25 : 54 , 560 ERROR [ MainDeployer ] Could not initialise deployment: file : / D: / jboss - 4.0 .3RC1 / server / default / deploy / Hai.ear
org.jboss.deployment.DeploymentException: expected one display - name tag
    at org.jboss.metadata.MetaData.getUniqueChild(MetaData.java: 98 )
    at org.jboss.deployment.J2eeApplicationMetaData.importApplicationXml(J2eeApplicationMetaData.java: 135 )
    at org.jboss.deployment.J2eeApplicationMetaData.importXml(J2eeApplicationMetaData.java: 121 )
    at org.jboss.deployment.EARDeployer.init(EARDeployer.java: 128 )
    at org.jboss.deployment.MainDeployer.init(MainDeployer.java: 827 )
    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java: 764 )
    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java: 737 )
    at sun.reflect.GeneratedMethodAccessor50.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
    at java.lang.reflect.Method.invoke(Method.java: 585 )
    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java: 141 )
    at org.jboss.mx.server.Invocation.dispatch(Invocation.java: 80 )
    at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java: 118 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 74 )
    at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java: 127 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 74 )
    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java: 245 )
    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java: 644 )
    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java: 176 )
    at $Proxy9.deploy(Unknown Source)
    at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java: 325 )
    at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java: 501 )
    at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java: 204 )
    at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java: 277 )
    at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java: 267 )
    at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java: 217 )
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
    at java.lang.reflect.Method.invoke(Method.java: 585 )
    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java: 141 )
    at org.jboss.mx.server.Invocation.dispatch(Invocation.java: 80 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 72 )
    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java: 245 )
    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java: 644 )
    at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java: 950 )
    at $Proxy0.start(Unknown Source)
    at org.jboss.system.ServiceController.start(ServiceController.java: 436 )
    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
    at java.lang.reflect.Method.invoke(Method.java: 585 )
    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java: 141 )
    at org.jboss.mx.server.Invocation.dispatch(Invocation.java: 80 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 72 )
    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java: 245 )
    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java: 644 )
    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java: 176 )
    at $Proxy4.start(Unknown Source)
    at org.jboss.deployment.SARDeployer.start(SARDeployer.java: 273 )
    at org.jboss.deployment.MainDeployer.start(MainDeployer.java: 973 )
    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java: 774 )
    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java: 737 )
    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java: 721 )
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39 )
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
    at java.lang.reflect.Method.invoke(Method.java: 585 )
    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java: 141 )
    at org.jboss.mx.server.Invocation.dispatch(Invocation.java: 80 )
    at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java: 118 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 74 )
    at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java: 127 )
    at org.jboss.mx.server.Invocation.invoke(Invocation.java: 74 )
    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java: 245 )
    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java: 644 )
    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java: 176 )
    at $Proxy5.deploy(Unknown Source)
    at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java: 434 )
    at org.jboss.system.server.ServerImpl.start(ServerImpl.java: 315 )
    at org.jboss.Main.boot(Main.java: 195 )
    at org.jboss.Main$ 1 .run(Main.java: 463 )
    at java.lang.Thread.run(Thread.java: 595 )

Harryson 2006-07-06 16:30 发表评论

Tutorial: Build a Web Application (JSF) Using JPA

Harryson — Thu, 01 Jun 2006 08:43:00 GMT

Tutorial: Build a Web Application (JSF) Using JPA
http://www.oracle.com/technology/products/ias/toplink/jpa/tutorials/jsf-jpa-tutorial.html

Harryson 2006-06-01 16:43 发表评论

jboss+eclipse+jboss-IDE部署运行EJB3

Harryson — Mon, 07 Nov 2005 00:21:00 GMT

其实整个内容是参考http://www.jboss.com/docs/demos下的JBoss Eclipse IDE TrailBlazer来回顾一下,大家可以直接看英文的. 其实说来惭愧,demos下的例子我没有实践成功,但它给了我很大的启发,至少明白了使用jboss-IDE怎样来创建一个EJB project,并且怎样部署运行ejb的整个流程.最后,我用了一个比较简单的例子来实践,终于成功了,于是写下一点心得下来.
大致说说使用他们得整个步骤及注意的地方.

       1)配置运行环境
         JSE1.5的JDK.Jboss作为EJB,SERVLET容器.
       2)IDE
          eclipse + jboss-IDE
       它们都可以从相关的网站上下载到.
       注意:它们的版本一定要相匹配.

       整个开发过程(编码)和别的没有什么区别.自己看着办.:)
       最主要的是部署过程,我想大家看完demo也能明白.

       注意:可能是jboss的demo有点问题.在打包过程中,请务必把**/*Servlet.java.改成**/*Servlet.class.因为打包所用到的是编译后的class.

Harryson 2005-11-07 08:21 发表评论

手动部署EJB,亲自体验EJB开发流程

Harryson — Fri, 07 Oct 2005 08:08:00 GMT

摘要: 也不记得是什么时候下载的一个开发ejb的例子，也没有看实践过。现在有点时候把它实践一下，还真爽，布置成功。我也把那个例子转载一下，希望能对新手有一定的启发。 &... 阅读全文

Harryson 2005-10-07 16:08 发表评论

JBoss3.0 下配置和部署EJB简介

Harryson — Fri, 07 Oct 2005 03:18:00 GMT

JBoss3.0 下配置和部署EJB简介
　　http://www.huihoo.com/jboss/jboss3_ejb.htm

Harryson 2005-10-07 11:18 发表评论

ejb3.0测试环境配置？

Harryson — Thu, 15 Sep 2005 06:55:00 GMT

用jboss-4.0.3RC1＋jboss-EJB_3.0_RC1作为运行ejb3.0的测试环境。
可我运行jboss-EJB_3.0_RC1　tutorial下的stateless就出错了，提示信息如下：

[java] Exception in thread "main" javax.naming.NameNotFoundException: org.j
boss.tutorial.stateful.bean.ShoppingCart not bound

可真让人郁闷呀，有没有高手能指点迷津呢？

Harryson 2005-09-15 14:55 发表评论

开始学习JBoss和EJB3.0

Harryson — Wed, 07 Sep 2005 02:16:00 GMT

       由于JBoss4.0.3运行需JDK1.5的支持，于是下载了jdbk1.5(http://sun.java.net),下载了JBoss4.0.3(http://www.jboss.com/products/jbosside/downloads).安装成功了。
我用的是win2k的OS。配置环境变量：
　　1) JAVA_HOME = (JDK安装目录)
         2) path = %JAVA_HOME%\bin;
                  上面两个可能要在安装jboss前配置
         3) JBOSS_HOME = (JBOSS安装目录)
         4) %JBOSS_HOME%\bin添加到path路径后面
学习的相关tutorial请去到http://www.jboss.org/docs/demos,：）祝好运！

Harryson 2005-09-07 10:16 发表评论

Tutorial for building J2EE Applications using JBOSS and ECLIPSE

Harryson — Tue, 06 Sep 2005 01:13:00 GMT

http://www.tusc.com.au/tutorial/html/chap1.html

Harryson 2005-09-06 09:13 发表评论