Hibernate，将.hbm.xml文件添加到cfg.xml文件中
我需要一些信息
什么是 hbm.xml 文件？？？我只知道 *.hbm 文件
以及如何将 .hbm.xml 文件添加到 cfg.xml 文件？？？
我想知道，因为当我尝试运行 jsp 时出现错误，他们说您必须将 .hbm.xml 文件添加到 cfg.xml 文件！
这是错误：
exception
org.apache.jasper.JasperException: javax.servlet.ServletException: net.sf.hibernate.MappingException: No persister for: MyDB.student org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:531) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332) javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
导致
javax.servlet.ServletException: net.sf.hibernate.MappingException: No persister for: MyDB.student org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:901) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:830) org.apache.jsp.JSP.index_jsp._jspService(index_jsp.java:103) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332) javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
导致 mère
net.sf.hibernate.MappingException: No persister for: MyDB.student net.sf.hibernate.impl.SessionFactoryImpl.getPersister（SessionFactoryImpl.java:347） net.sf.hibernate.impl.SessionImpl.getClassPersister(SessionImpl.java:2690) net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2697) net.sf.hibernate.impl.SessionImpl.saveWithGenerateIdentifier(SessionImpl.java:763) net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:738) org.apache.jsp.JSP.index_jsp._jspService(index_jsp.java:75) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332) javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
i need some information
what is a hbm.xml file ??? i know just *.hbm files
and how to add the .hbm.xml file to the cfg.xml file ???
i want to know that cuz i get an error when im trying to run my jsp and they said you have to add the .hbm.xml file to the cfg.xml file !!
this is the error :
exception
org.apache.jasper.JasperException: javax.servlet.ServletException: net.sf.hibernate.MappingException: No persister for: MyDB.student
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:531)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
cause mère
javax.servlet.ServletException: net.sf.hibernate.MappingException: No persister for: MyDB.student
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:901)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:830)
org.apache.jsp.JSP.index_jsp._jspService(index_jsp.java:103)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
cause mère
net.sf.hibernate.MappingException: No persister for: MyDB.student
net.sf.hibernate.impl.SessionFactoryImpl.getPersister(SessionFactoryImpl.java:347)
net.sf.hibernate.impl.SessionImpl.getClassPersister(SessionImpl.java:2690)
net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2697)
net.sf.hibernate.impl.SessionImpl.saveWithGeneratedIdentifier(SessionImpl.java:763)
net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:738)
org.apache.jsp.JSP.index_jsp._jspService(index_jsp.java:75)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:332)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
hbm 文件通常是 XML，并且通常具有扩展名 .hbm.xml 。如果您仅将它们命名为 .hbm，则违反了约定。
您不必从 hibernate.cfg.xml 映射它们 - 您可以通过编程或通过 Spring 来完成。
如果您愿意，只需添加与此类似的内容即可
hbm files are normally XML and normally have the extension .hbm.xml . If you named them just .hbm, you broke convention.
You don't have to map them all from hibernate.cfg.xml - you can do it programmatically or via Spring.
If you want to though, you just add them similar to this