Question

hibernate 初学问题

Exception in thread "main" org.hibernate.InvalidMappingException: Could not parse mapping document from resource cd/com/tm/hibernate/model/UserLogin.hbm.xml
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3951)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3940)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3928)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1368)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1826)
at testHibernate.main(testHibernate.java:19)
Caused by: org.hibernate.MappingException: class cn.com.tm.hibernate.model.UserLogin not found while looking for property: id
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:232)
at org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:316)
at org.hibernate.cfg.HbmBinder.bindSimpleId(HbmBinder.java:451)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:384)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:323)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:174)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3948)
... 5 more
Caused by: java.lang.ClassNotFoundException: cn.com.tm.hibernate.model.UserLogin
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:228)
... 11 more

Answer 1

Caused by: org.hibernate.MappingException: class cn.com.tm.hibernate.model.UserLogin not found while looking for property: id
UserLogin和配置文件映射有问题，缺少相应查询属性。
或者没有你所查对应ID的数值。
报错的表面应该是这样，具体情况要看代码了。