关于eclipse2.1+jboss3.0.7

03-09-27 leobasic

请问为什么我调式一个hellword的无状态sessiob bean时,会经常出现以下错误:

11:39:37,518 INFO [STDOUT] javax.naming.NameNotFoundException: testBean not bound

11:39:37,518 INFO [STDOUT] Object create failure!

11:39:37,518 WARN [jbossweb] WARNING: Exception for /testWebMod/client.jsp

java.lang.NullPointerException

at org.apache.jsp.client$jsp._jspService(client$jsp.java:91)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)

at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)

at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)

at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)

at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)

at org.mortbay.http.HttpServer.service(HttpServer.java:863)

at org.jboss.jetty.Jetty.service(Jetty.java:460)

at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)

at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)

at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)

at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)

at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)

at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)

HTTP ERROR: 500 Internal Server Error

比如说当我把从bean返回的“hello!”改为中文时就会出现这个错误。