连接mysql发生以下错误,请问是怎么回事?谢谢了!

Question

数据库连接测试如下

DLOG4J snoop
 
 Database
 

  
Database: MySQL 5.0.15-nt 
  
Driver: MySQL-AB JDBC Driver (mysql-connector-java-5.0.4 ( $Date: 2006-10-19 17:47:48 +0200 (Thu, 19 Oct 2006) $, $Revision: 5908 $ )) 
  
Username: root@localhost 
  
URL: jdbc:mysql://localhost:3306/dlog 
 

访问页面错误信息如下:

org.hibernate.MappingException: Unknown entity: com.liusoft.dlog4j.beans.SiteBean
	at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(Unknown Source)
	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(Unknown Source)
	at org.hibernate.impl.SessionImpl.fireLoad(Unknown Source)
	at org.hibernate.impl.SessionImpl.get(Unknown Source)
	at org.hibernate.impl.SessionImpl.get(Unknown Source)
	at com.liusoft.dlog4j.dao.DAO.getBean(DAO.java:147)
	at com.liusoft.dlog4j.dao.SiteDAO.getSiteByID(SiteDAO.java:73)
	at com.liusoft.dlog4j.velocity.DLOG_VelocityTool.site(DLOG_VelocityTool.java:395)

Answer 1

java.lang.NullPointerException
	at com.liusoft.dlog4j.dao.DAO.getBean(DAO.java:145)
	at com.liusoft.dlog4j.dao.SiteDAO.getSiteByID(SiteDAO.java:115)
	at com.liusoft.dlog4j.velocity.DLOG_VelocityTool.site(DLOG_VelocityTool.java:395)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:267)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:197)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:175)
	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:327)
	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:51)
	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:95)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:70)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.Parse.render(Parse.java:181)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.Parse.render(Parse.java:181)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:172)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.Parse.render(Parse.java:181)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.Template.merge(Template.java:256)
	at org.apache.velocity.tools.view.servlet.VelocityLayoutServlet.mergeTemplate(Unknown Source)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(Unknown Source)
	at com.liusoft.dlog4j.servlet.DLOG_VelocityServlet.doRequest(DLOG_VelocityServlet.java:100)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doGet(Unknown Source)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
	at com.liusoft.dlog4j.servlet.DLOG_HibernateFilter.doFilter(DLOG_HibernateFilter.java:73)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:233)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
	at com.liusoft.dlog4j.servlet.GZIPFilter.doFilter(GZIPFilter.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:233)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
	at java.lang.Thread.run(Thread.java:595)

帮我看看是什么原因.

Answer 2

错误不少啊

Answer 3

hibernate好久没接触了....想代码了

Answer 4

at com.liusoft.dlog4j.dao.DAO.getBean(DAO.java:147)
at com.liusoft.dlog4j.dao.SiteDAO.getSiteByID(SiteDAO.java:73)
at com.liusoft.dlog4j.velocity.DLOG_VelocityTool.site(DLOG_VelocityTool.java:395)

这个看看 at com.liusoft.dlog4j.dao.DAO.getBean(DAO.java:147)

Answer 5

你是启动时错还是运行时错？

是用eclipse运行的吗

Answer 6

 ＳＥＳＳＩＯＮ　ＦＡＣＴＯＲＹ中的MAPPING RESOURCE没定义吧

Answer 7

引用来自“红薯”的帖子

目录：classescomliusoftdlog4jhbm

Answer 8

引用来自“红薯”的帖子

检查一下那些hbm文件有没有拷贝到 classes 目录下相应的路径？

Answer 9

检查一下那些hbm文件有没有拷贝到 classes 目录下相应的路径？