eclipse3.1+struts+hibernate+tomcat进行Web开发（分虽不高，但是还是希望大家进来看看。）

Question

下面是我的报错的信息。这里的提示，有点奇怪，因为，我确定，
我是已经加载了oracle.jdbc.driver.OracleDriver的
不然的话，单独测试Hibernate的时候，就会报错了。。
%%%% Error Creating SessionFactory %%%%
org.hibernate.HibernateException: JDBC Driver class not found: oracle.jdbc.driver.OracleDriver
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:66)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:362)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
at com.HibernateSessionFactory.currentSession(HibernateSessionFactory.java:49)
at com.DaoHibernate.deal(DaoHibernate.java:51)
at com.yourcompany.struts.action.UserLoginAction.execute(UserLoginAction.java:48)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1340)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:108)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:61)
... 38 more

Answer 1

包应该是没有加载进来
你把oracle的驱动包放到tomcat\common\lib下

Answer 2

谢谢，，这个IDE已经不报错了。
但是在打开网页的时候，
网页打不开。并给出了，下面的错误提示。请大家帮我看下下，，
HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception javax.servlet.ServletException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause java.lang.NullPointerException
com.yourcompany.struts.action.UserLoginAction.execute(UserLoginAction.java:53)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

Answer 3

这个是我的Struts配置文件<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd"><struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="userForm" type="com.yourcompany.struts.form.UserForm" />  </form-beans>  <global-exceptions />
  <global-forwards >
    <forward name="fail" path="/WEB-INF/classes/error.jsp" />
    <forward name="success" path="/WEB-INF/classes/success.jsp" />
    
      </global-forwards>  <action-mappings >
    <action
      attribute="userForm"
      input="/login.jsp"
      name="userForm"
      path="/Login"
      scope="request"
      type="com.yourcompany.struts.action.UserLoginAction" />  </action-mappings>  <message-resources parameter="com.yourcompany.struts.ApplicationResources" />
</struts-config>

Answer 4

空指针问题！
自己查查程序吧！查查UserLoginAction.java

Answer 5

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<data-sources/>
<form-beans>
<form-bean name="userForm" type="com.yourcompany.struts.form.UserForm"/>
</form-beans>
<global-exceptions/>
<global-forwards>
<forward name="fail" path="/WEB-INF/classes/error.jsp"/>
<forward name="success" path="/WEB-INF/classes/success.jsp"/>
</global-forwards>
<action-mappings>
<action attribute="userForm" input="/login.jsp" name="userForm" path="/Login" scope="request" type="com.yourcompany.struts.action.UserLoginAction"/>
</action-mappings>
<message-resources parameter="com.yourcompany.struts.ApplicationResources"/>
</struts-config>

Answer 6

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