寻找高手！！JBuilder6|EJB|JSP 页面测试错误/疑问！！！

[sharedata]

我在用JSP直接调用实体时，出现错误。我是这样做的：首先，定义实体并用JBuilder6生成的测试文件测试（包括其他查找方法），都是正确的。然后，我新建WebApp，并添加JSP页面。在编译JSP时出现错误。错误详细的清单如下：

**************JSP 编译时:***************
java.lang.NullPointerException
--------------- nested within: ------------------
"testJsp.jsp": weblogic.utils.Assertionerror: ***** ASSERTION FAILED ***** - with nested exception:
[java.lang.NullPointerException]
java.lang.NullPointerException
--------------- nested within: ------------------
"testJsp.jsp": weblogic.utils.Assertionerror: ***** ASSERTION FAILED ***** - with nested exception:
[java.lang.NullPointerException]

如下是更多的Weblogic控制台信息。来源于对test war的察看，更确切的说来源于 Edit Web Application Descriptor的摘抄。没有列写详细的log 文件。

实体从JNDI以及各方面测试来看，是完全正确的。

java.lang.NullPointerException
at weblogic.management.console.utils.MBeans.getMBeanClassFor(MBeans.java:799)
at weblogic.management.console.actions.internal.ActionUtils.getAreaFor(ActionUtils.java:142)
at weblogic.management.console.actions.mbean.MBeanDescriptorFramesetAction.perFORM(MBeanDescriptorFramesetAction.java:136)
at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:172)
at weblogic.management.console.actions.internal.ActionServlet.doGet(ActionServlet.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.utils.NestedRuntimeException - with nested exception:
[java.lang.NullPointerException]
at weblogic.management.console.utils.MBeans.getMBeanClassFor(MBeans.java:801)
at weblogic.management.console.actions.internal.ActionUtils.getAreaFor(ActionUtils.java:142)
at weblogic.management.console.actions.mbean.MBeanDescriptorFramesetAction.perFORM(MBeanDescriptorFramesetAction.java:136)
at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:172)
at weblogic.management.console.actions.internal.ActionServlet.doGet(ActionServlet.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.management.console.actions.ActionException - with nested exception:
[weblogic.utils.NestedRuntimeException - with nested exception:
[java.lang.NullPointerException]
at weblogic.management.console.actions.ErrorAction.(ErrorAction.java:38)
at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:191)
at weblogic.management.console.actions.internal.ActionServlet.doGet(ActionServlet.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)


Current Date
Mon Dec 23 13:05:01 CST 2002

Console Release Build


Console Build


Server Release Build
6.1.0.0

Server Build
WebLogic Server 6.1 07/23/2001 22:31:20 #129251

其他信息略

[sharedata]

在手工或者用JBuilder 6 + Weblogic 6.1 来编译JSP时(自动编译时的错误还包含其他信息)，均出现错误如下：
手工操作时建立的目录如下：
D:\test\web
\help.jsp(JBuilder6生成的，未经任何修改的只是显示JBuilder生成标题字样)
\web.xml
\weblogic.xml
\WEB-INF
\test
\*.class(测试所用的经编译的class文件，包括DIDE生成的class文件)

上述信息及上几次提供的信息说明问题不在于操作步骤或者程序问题，在什么地方的设置出现了什么问题，这是什么原因呢？关键是以前我是测试过JSP通过JavaBean调用SessionBean的情况。具体的设置是改变了的，但是，详细的设置我没有发现太多的差别和问题。恕我愚笨，恳求帮忙！！！

[sharedata]

D:\test\web>java -cp c:\bea\wlserver6.1\lib\weblogic.jar weblogic.jspc help.jsp
java.lang.NullPointerException
at weblogic.management.Admin.getServer(Admin.java:1239)
at weblogic.servlet.internal.dd.ServletEntityResolver.initServerMBean(Se
rvletEntityResolver.java:69)
at weblogic.servlet.internal.dd.ServletEntityResolver.resolveEntity(Serv
letEntityResolver.java:94)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalEntity(DefaultEntityHandler.java:749)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalSubset(DefaultEntityHandler.java:566)
at weblogic.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTD
Scanner.java:1139)
at weblogic.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(X
MLDocumentScanner.java:2215)
at weblogic.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocum
entScanner.java:2170)
at weblogic.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.
dispatch(XMLDocumentScanner.java:901)
at weblogic.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocu
mentScanner.java:381)
at weblogic.apache.xerces.framework.XMLParser.parse(XMLParser.java:967)
at weblogic.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilder
Impl.java:175)
at weblogic.servlet.internal.dd.DescriptorLoader.parse(DescriptorLoader.
java:311)
at weblogic.servlet.internal.dd.DescriptorLoader.initializeWebXml(Descri
ptorLoader.java:327)
at weblogic.servlet.internal.dd.DescriptorLoader.initialize(DescriptorLo
ader.java:242)
at weblogic.servlet.internal.dd.DescriptorLoader.(DescriptorLoader
.java:176)
at weblogic.servlet.internal.dd.DescriptorLoader.loadDescriptor(Descript
orLoader.java:396)
at weblogic.jspc.runBodyInternal(jspc.java:228)
at weblogic.jspc.runBody(jspc.java:169)
at weblogic.utils.compiler.Tool.run(Tool.java:79)
at weblogic.jspc.main(jspc.java:362)

[sharedata]

--------------- nested within: ------------------
weblogic.utils.Assertionerror: ***** ASSERTION FAILED ***** - with nested except
ion:
[java.lang.NullPointerException]
at weblogic.management.Admin.getServer(Admin.java:1243)
at weblogic.servlet.internal.dd.ServletEntityResolver.initServerMBean(Se
rvletEntityResolver.java:69)
at weblogic.servlet.internal.dd.ServletEntityResolver.resolveEntity(Serv
letEntityResolver.java:94)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalEntity(DefaultEntityHandler.java:749)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalSubset(DefaultEntityHandler.java:566)
at weblogic.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTD
Scanner.java:1139)
at weblogic.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(X
MLDocumentScanner.java:2215)
at weblogic.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocum
entScanner.java:2170)
at weblogic.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.
dispatch(XMLDocumentScanner.java:901)
at weblogic.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocu
mentScanner.java:381)
at weblogic.apache.xerces.framework.XMLParser.parse(XMLParser.java:967)
at weblogic.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilder
Impl.java:175)
at weblogic.servlet.internal.dd.DescriptorLoader.parse(DescriptorLoader.
java:311)
at weblogic.servlet.internal.dd.DescriptorLoader.initializeWebXml(Descri
ptorLoader.java:327)
at weblogic.servlet.internal.dd.DescriptorLoader.initialize(DescriptorLo
ader.java:242)
at weblogic.servlet.internal.dd.DescriptorLoader.(DescriptorLoader
.java:176)
at weblogic.servlet.internal.dd.DescriptorLoader.loadDescriptor(Descript
orLoader.java:396)
at weblogic.jspc.runBodyInternal(jspc.java:228)
at weblogic.jspc.runBody(jspc.java:169)
at weblogic.utils.compiler.Tool.run(Tool.java:79)
at weblogic.jspc.main(jspc.java:362)
java.lang.NullPointerException
at weblogic.management.Admin.getServer(Admin.java:1239)
at weblogic.servlet.internal.dd.ServletEntityResolver.initServerMBean(Se
rvletEntityResolver.java:69)
at weblogic.servlet.internal.dd.ServletEntityResolver.resolveEntity(Serv
letEntityResolver.java:94)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalEntity(DefaultEntityHandler.java:749)
at weblogic.apache.xerces.readers.DefaultEntityHandler.startReadingFromE
xternalSubset(DefaultEntityHandler.java:566)
at weblogic.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTD
Scanner.java:1139)
at weblogic.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(X
MLDocumentScanner.java:2215)
at weblogic.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocum
entScanner.java:2170)
at weblogic.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.
dispatch(XMLDocumentScanner.java:901)
at weblogic.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocu
mentScanner.java:381)
at weblogic.apache.xerces.framework.XMLParser.parse(XMLParser.java:967)
at weblogic.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilder
Impl.java:175)
at weblogic.servlet.internal.dd.DescriptorLoader.parse(DescriptorLoader.
java:311)
at weblogic.servlet.internal.dd.DescriptorLoader.initializeWebXml(Descri
ptorLoader.java:327)
at weblogic.servlet.internal.dd.DescriptorLoader.initialize(DescriptorLo
ader.java:242)
at weblogic.servlet.internal.dd.DescriptorLoader.(DescriptorLoader
.java:176)
at weblogic.servlet.internal.dd.DescriptorLoader.loadDescriptor(Descript
orLoader.java:396)
at weblogic.jspc.runBodyInternal(jspc.java:228)
at weblogic.jspc.runBody(jspc.java:169)
at weblogic.utils.compiler.Tool.run(Tool.java:79)
at weblogic.jspc.main(jspc.java:362)

[worldheart]

我怀疑你的JSP页面文件里面有包含文件，头文件，或者脚注文件，所以调试JSP时会出错，你应该在JB中设置在Deploy过程中不编译你的JSP文件，这样应该没问题，在工程里面修改！！！

[sharedata]

该JSP文件是JBuilder6自动生成的，没有添加任何的代码，只是显示Borland的一条标题信息而已，可以确保正确！
实体bean使用客户端测试通过了,包括自定义方法；
单独运行 JSP成功了，后来采用的是JBuilder6 自动生成的只显示标题的JSP；
使用 servelet 调实体bean成功了吗?没有用servelet ，感觉风格很差，不想用；
你找到了 weblogic 提供的用jsp调entitybean的例子了吗?找过一些，服务器的信息主要是上下文信息已经添加进去了的。

[sharedata]

这个问题解决了的话，我给100分。额外的，各位以后有啥需要，只要我可以做得到的，我一定帮忙！

[sharedata]

问题解决了！是D版原因。