求助SSH一个空指针问题 请大家帮忙解决一下下

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/com/xx/config/beans.xml</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<servlet>
<servlet-name>struts</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>struts</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping></web-app>
==============================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "struts-config_1_2.dtd" >
<struts-config>
<form-beans>
<form-bean name="user" type="com.xx.actionfom.Userform"/>
</form-beans> <global-forwards>
<forward name="ok" path="/ok.jsp"></forward>
</global-forwards> <action-mappings>
<action path="/zhuce" name="user" type="org.springframework.web.struts.DelegatingActionProxy"/>
</action-mappings></struts-config>=========================================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" >
<beans>
<bean id="datasource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName">
<value>oracle.jdbc.driver.OracleDriver</value>
</property>
<property name="url">
<value>jdbc:oracle:thin:@127.0.0.1:1521:xx</value>
</property> <property name="username">
<value>xx</value>
</property>
<property name="password">
<value>xx</value>
</property>
</bean> <bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref local="datasource" />
</property> <property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle9Dialect
</prop>
</props>
</property> <property name="mappingResources">
<list>
<value>com/xx/config/user.hbm.xml</value>
</list>
</property>
</bean> <bean id="hibernateTemplate"
class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean> <!-- 配置用户 -->
<bean id="useradddao" class="com.xx.dao.Useradddaoimp">
<property name="template">
<ref local="hibernateTemplate" />
</property>
</bean> <bean id="useraddbiz" class="com.xx.biz.Useraddbizimp">
<property name="useradddao">
<ref local="useradddao"/>
</property>
</bean> <bean name="/zhuce" class="com.xx.action.Useraddaction">
<property name="useraddbiz">
<ref local="useraddbiz" />
</property>
</bean></beans>
===============================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" ><hibernate-mapping package="com.xx.entity">
<class name="User" table="p_test">
<id name="id" column="id">
 <generator class="increment"/>
 </id>
 <property name="name" column="name"></property>
 

</class>
</hibernate-mapping>
======================================
<body>
    <form action="${pageContext.request.contextPath}/zhuce.do"  method="post">
    <tr><td>用户名<input name="name" type="text" /></td></tr>
    
    <input type="submit" value="提交">
        </form>
  </body>
========================================
以上是web.xml/struts-config.xml/beans.xml/hibernate.xml/jsp
启动后系统后台报错
==========================
严重: Servlet.service() for servlet struts threw exception
java.lang.NullPointerException
at org.apache.struts.config.FormBeanConfig.createActionForm(FormBeanConfig.java:289)
at org.apache.struts.config.FormBeanConfig.createActionForm(FormBeanConfig.java:357)
at org.apache.struts.chain.commands.CreateActionForm.execute(CreateActionForm.java:92)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Thread.java:595)==========================
请大家帮忙指导。谢谢。在线等待哦