hibernate初学问题

[意心一忆]

我在网上查了很多解决问题，大多说我的classpath和jar包的问题，我都对照了，没有问题。它仍然是一个问题，session不能获取到。


这个是发布jsp页面所报的错误：

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:500)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:395)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)


root cause

javax.servlet.ServletException
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:841)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:774)
org.apache.jsp.users_jsp._jspService(users_jsp.java:75)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)


root cause

java.lang.NoClassDefFoundError
com.ruyi.hibernate.BaseHibernateDAO.getSession(BaseHibernateDAO.java:13)
com.ruyi.hibernate.UserDAO.findByExample(UserDAO.java:83)
org.apache.jsp.users_jsp._jspService(users_jsp.java:55)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.34 logs.


hibernate.cfg.xml的配置文件的内容：

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration>

<session-factory>
<property name="myeclipse.connection.profile">
sqlserver
</property>
<property name="connection.url">
jdbc:sqlserver://localhost:1433;databaseName=work
</property>
<property name="connection.username">sa</property>
<property name="connection.password">ruyi</property>
<property name="connection.driver_class">
com.microsoft.sqlserver.jdbc.SQLServerDriver
</property>
<property name="dialect">
org.hibernate.dialect.SQLServerDialect
</property>
<mapping resource="com/ruyi/hibernate/User.hbm.xml" />

</session-factory>

</hibernate-configuration>

HibernateSessionFactory中的getSession()方法的内容如下：
public static Session getSession() throws HibernateException {
Session session = (Session) threadLocal.get();

if (session == null || !session.isOpen()) {
if (sessionFactory == null) {
rebuildSessionFactory();
}
session = (sessionFactory != null) ? sessionFactory.openSession()
: null;
threadLocal.set(session);
}

return session;
}

[酒比花香]

com.ruyi.hibernate.BaseHibernateDAO.getSession(BaseHibernateDAO.java:13)
com.ruyi.hibernate.UserDAO.findByExample(UserDAO.java:83)