求教一个关于EJB +JBOSS +数据库源JNDI 的问题

jinhe22 2014-04-18 05:47:00

最近开始学习EJB 回话bean 的远程调用，用的 NEATBEAN 这个开发工具，环境都搭建好了，JBOSS 用的最新版本JBOSS AS 7.1.1 final EJB3.0 ，先在JBOSS中配置好了DB2数据源，指定了数据源的JNDI ,并测试了数据连接。
现在我想写一个会话Bean调用这个JNDI 来连接数据库，可是在执行的时候出现了问题。在网上查找给出的Exception 的原因就是找不到。想请教高手们给个建议，帮忙解决一下我的难题。我写会话Bean 和JSP 的代码如下附带系统的错误信息：
EJB 接口
package com.db2.jbdctest;
import java.sql.Array;
public interface DB2link {

public Boolean Link ();
}
无状态会话BEAN

package com.db2.jbdctest;
import javax.ejb.Stateless;
import javax.ejb.Remote;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import javax.annotation.Resources;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;

@Stateless
@Remote(DB2link.class)
public class DB2Operatebean {
private Boolean bl=true;
public String DBJndi="java:jboss/datasources/db2";
public String Url;
public InitialContext ct;
public DataSource db;
public Boolean link()
{
try
{
ct=new InitialContext();
db=(DataSource)ct.lookup(DBJndi);
Connection Con= db.getConnection();
}
catch(NamingException se)
{
System.out.print("请求JNDI失败"+se.getMessage());
return false;
}

catch(SQLException e)
{
System.out.print("数据库连接不成功"+e.getMessage());
return false;
}
return bl ;
}

写了一个JSP 的页面来调用执行结果：
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page language="java" import="javax.naming.*,com.db2.jbdctest.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>DB2Operate</title>
</head>
<body>
<%
try
{
InitialContext IC=new InitialContext();
DB2link dbL=(DB2link)IC.lookup("global/appeat/appeat-ejb/DB2Operatebean");
Boolean linkbl=dbL.Link();
DB2Operatebean dbbean=new DB2Operatebean();
if(linkbl==true)
{
out.println("链接数据库成功，数据库名称："+dbbean.Url);
}else
{
out.println("链接数据库失败");
}
}
catch(Exception e)
{
out.println(e.getMessage());
}
%>
</body>
</html>

结果网页报错：
org.jboss.invocation.CannotProceedException: INV-00002:Invocation cannot proceed (end of interceptor chain has been hit)

后台JBOSS 系统报出的错误：
05:21:31,765 ERROR [org.jboss.ejb3.invocation] (http--127.0.0.1-8080-1) JBAS014134: EJB Invocation failed on component DB2Operatebean for method public abstract java.lang.Boolean com.db2.jbdctest.DB2link.Link(): javax.ejb.EJBException: org.jboss.invocation.CannotProceedException: INV-00002:Invocation cannot proceed (end of interceptor chain has been hit)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:166) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:230) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:304) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:190) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:80) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:32) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.ejb3.remote.LocalEjbReceiver.processInvocation(LocalEjbReceiver.java:179) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:179) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.TransactionInterceptor.handleInvocation(TransactionInterceptor.java:43) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:128) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104) [jboss-ejb-client-1.0.5.Final.jar:1.0.5.Final]
at com.sun.proxy.$Proxy21.Link(Unknown Source)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:74)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62) [weld-core-1.1.5.AS71.Final.jar:2012-02-10 15:31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
Caused by: org.jboss.invocation.CannotProceedException: INV-00002:Invocation cannot proceed (end of interceptor chain has been hit)
at org.jboss.invocation.InvocationMessages_$bundle.cannotProceed(InvocationMessages_$bundle.java:131) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:293) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:228) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]

真心不知道怎么解决了。求高手指教

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