Java开发网 - EJB问题!希望大家赐教!

Topic: EJB问题!希望大家赐教!

1.EJB问题!希望大家赐教!

Posted by: TJCEO
Posted on: 2004-05-14 17:07

我参考的书籍是<J2EE经典实例详解>介绍的是怎样创建一个网上银行.我的源代码都写好进行编译的时候,系统出现以下提示:

"myModule.ejbgrpx": ERROR: ejbc found errors while parsing the descriptor for C:/Documents and Settings/TJCEO/jbproject/Bank/myModule.jar.jar:

"myModule.ejbgrpx": ERROR: Error from ejbc: Error parsing 'ejb-jar.xml' line 128: The content of element type "container-transaction" is incomplete, it must match "(description?,method+,trans-attribute)".

"myModule.ejbgrpx": ERROR: ejbc found errors

请问这是什么错误造成的??谢了!

2.Re:EJB问题!希望大家赐教! [Re: TJCEO]	Copy to clipboard
Posted by: tangming Posted on: 2004-05-14 17:21 你必须为container-transaction指定你要用容器管理的方法。

3.Re:EJB问题!希望大家赐教! [Re: TJCEO]	Copy to clipboard
Posted by: TJCEO Posted on: 2004-05-14 21:26 怎么指定啊?能详细点吗?

4.Re:EJB问题!希望大家赐教! [Re: TJCEO]

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Posted by: slacker
Posted on: 2004-05-15 10:47

我觉的可能是你把顺序搞错了.
check http://java.sun.com/dtd/ejb-jar_2_0.dtd
<!ELEMENT container-transaction (description?, method+, trans-attribute)>
all three sub-element of "container-transaction" must be in order. Check your ejb-jar.xml.

slacker.

or you missed either a method or trans-attribute, since both must occur in the container-transaction.

5.Re:EJB问题!希望大家赐教! [Re: TJCEO]	Copy to clipboard
Posted by: TJCEO Posted on: 2004-05-15 14:13 是不是我的EJB中没有定义方法呢??

6.Re:EJB问题!希望大家赐教! [Re: TJCEO]

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Posted by: slacker
Posted on: 2004-05-15 15:04

From the error message:
"myModule.ejbgrpx": ERROR: Error from ejbc: Error parsing 'ejb-jar.xml' line 128: The content of element type "container-transaction" is incomplete, it must match "(description?,method+,trans-attribute)".

I believe it is the problem of "container-transaction". Based on the DTD, container-transaction must have at least one sub-element "method", and exactly one "trans-attribute". Also subelements must list in order which may the problem casued the Exception when ejb container read the ejb-xml.jar.

pls double check your ejb-xml.jar.

slacker.

7.Re:EJB问题!希望大家赐教! [Re: TJCEO]	Copy to clipboard
Posted by: TJCEO Posted on: 2004-05-15 20:25 我用的是JBuilder啊!我没有发现ejb-jar.xml文件啊!!

8.Re:EJB问题!希望大家赐教! [Re: TJCEO]	Copy to clipboard
Posted by: slacker Posted on: 2004-05-16 00:21 ft ejb-jar.xml is the J2EE standard configure fie for EJB jar file. Whateve development tools you use, it does exist in the META-INF directory. slacker.