java.lang.IllegalArgumentException: Unknown entity解决

我就是我 2022-04-01 09:23 475阅读 0赞

### 环境 ###

MyEclipse 8.6 + JBoss 6.0 + JDK 1.6.13 +EJB 3.0

### 问题 ###

EntityBean测试出现如下异常：

java.lang.IllegalArgumentException: Unknownentity User.

### 解决 ###

将persistence.xml放在src\\META-INF目录下，如果src目录下没有META-INF文件夹，可以新建。

错误：不要把persistence.xml放在\\WebRoot\\META-INF下。

### 参考资料 ###

[http://ningnian169.blog.51cto.com/2417825/450042][http_ningnian169.blog.51cto.com_2417825_450042]

[http://stackoverflow.com/questions/7887481/how-to-get-rid-of-java-lang-illegalargumentexception-unknown-entity-while-run][http_stackoverflow.com_questions_7887481_how-to-get-rid-of-java-lang-illegalargumentexception-unknown-entity-while-run]

[http://tieba.baidu.com/p/1076303186][http_tieba.baidu.com_p_1076303186]

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[http_ningnian169.blog.51cto.com_2417825_450042]: http://ningnian169.blog.51cto.com/2417825/450042
[http_stackoverflow.com_questions_7887481_how-to-get-rid-of-java-lang-illegalargumentexception-unknown-entity-while-run]: http://stackoverflow.com/questions/7887481/how-to-get-rid-of-java-lang-illegalargumentexception-unknown-entity-while-run
[http_tieba.baidu.com_p_1076303186]: http://tieba.baidu.com/p/1076303186