hibernate的粗。。。帮忙看看 。。hibernate-mapping-3.0.dtd (系统找不到指定的文件

[dd121011]

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
org.hibernate.MappingException: Could not read mappings from resource: com/ltd/blog/bean/ArticleBean.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:485)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1465)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1433)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1414)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1390)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1310)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1296)
at com.ltd.blog.util.SessionFactoryBuild.getSessionFactory(SessionFactoryBuild.java:15)
at com.ltd.blog.util.SessionFactoryBuild.<clinit>(SessionFactoryBuild.java:9)
at com.ltd.blog.test.TestHbn.saveTeacherAndCourse(TestHbn.java:23)
at com.ltd.blog.test.TestHbn.main(TestHbn.java:94)
Caused by: org.hibernate.MappingException: Could not parse mapping document in input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:431)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:482)
... 10 more
Caused by: org.dom4j.DocumentException: \..\hibernate-mapping-3.0.dtd (系统找不到指定的文件。) Nested exception: \..\hibernate-mapping-3.0.dtd (系统找不到指定的文件。)
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:422)
... 11 more
Exception in thread "main" java.lang.NullPointerException
at com.ltd.blog.test.TestHbn.saveTeacherAndCourse(TestHbn.java:23)
at com.ltd.blog.test.TestHbn.main(TestHbn.java:94)
出这个错的原因是什么啊？

[favorite7w]

Could not read mappings from resource: com/ltd/blog/bean/ArticleBean.hbm.xml
找不上面那个文件，先解决这个问题吧。

[dd121011]

Could not read mappings from resource: com/ltd/blog/bean/ArticleBean.hbm.xml
这个错误是找不到xml文件吗？

[favorite7w]

有可能，你找你的class目录有没有这个文件？
如果有的话再检查下文件头的DocType标签和下面的有什么差异没？

<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

[dd121011]

哦。。这样啊。。。我的xml文件原来是这个样子的 ：

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"../../../../hibernate-mapping-3.0.dtd">

[dd121011]

呵呵，改成你的xml以后
好多了。。

[dd121011]

呵呵。。。
现在变成这个错了。。可以帮忙给解决下吗 ？
org.hibernate.MappingException: Association references unmapped class: com.ltd.blog.bean.FeedBackBean
at org.hibernate.cfg.HbmBinder.bindCollectionSecondPass(HbmBinder.java:2344)
at org.hibernate.cfg.HbmBinder$CollectionSecondPass.secondPass(HbmBinder.java:2618)
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:35)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1012)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1168)
at com.ltd.blog.util.SessionFactoryBuild.getSessionFactory(SessionFactoryBuild.java:16)
at com.ltd.blog.util.SessionFactoryBuild.<clinit>(SessionFactoryBuild.java:9)
at com.ltd.blog.test.TestHbn.saveTeacherAndCourse(TestHbn.java:23)
at com.ltd.blog.test.TestHbn.main(TestHbn.java:94)
Exception in thread "main" java.lang.NullPointerException
at com.ltd.blog.test.TestHbn.saveTeacherAndCourse(TestHbn.java:23)
at com.ltd.blog.test.TestHbn.main(TestHbn.java:94)

[favorite7w]

关联类com.ltd.blog.bean.FeedBackBean没有被映射。