[MVC] probleme debutant Spring

Bonjour
J'ai un pb voici mon erreur

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javax.servlet.ServletException: Neither Errors instance nor plain target object for bean name 'priceIncrease' available as request attribute
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
	org.apache.jsp.WEB_002dINF.jsp.login_jsp._jspService(login_jsp.java:189)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:97)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:928)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:705)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
	org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:386)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:346)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 
cause mère 
 
javax.servlet.jsp.JspTagException: Neither Errors instance nor plain target object for bean name 'priceIncrease' available as request attribute
	org.springframework.web.servlet.tags.BindTag.doStartTagInternal(BindTag.java:118)
	org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:68)
	org.apache.jsp.WEB_002dINF.jsp.login_jsp._jspService(login_jsp.java:88)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:97)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:928)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:705)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
	org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:386)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:346)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

voici mon fichier springapp-servlet.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
 "http://www.springframework.org/dtd/spring-beans.dtd">
<!-- Application context definition for "springapp" DispatcherServlet. -->
 
<beans>
    <!--  Controller for the initial "Hello" page 
    <bean id="springappController" class="web.SpringappController">
        <property name="productManager">
            <ref bean="prodMan"/>
        </property>
    </bean> -->
 
    <!--  Validator and Form Controller for the "Price Increase" page -->
    <bean id="priceIncreaseValidator" class="bus.PriceIncreaseValidator"/>
    <bean id="loginForm" class="web.PriceIncreaseFormController">
        <property name="sessionForm"><value>true</value></property>
        <property name="commandName"><value>login</value></property>
        <property name="commandClass"><value>bus.Login</value></property>
        <property name="validator"><ref bean="priceIncreaseValidator"/></property>
        <property name="formView"><value>login</value></property>
        <property name="successView"><value>hello.htm</value></property>
    </bean>
 
    <bean id="prodMan" class="bus.ProductManager">
        <property name="products">
            <list>
                <ref bean="product1"/>
                <ref bean="product2"/>
                <ref bean="product3"/>
            </list>
        </property>
    </bean>
 
    <bean id="product1" class="bus.Product">
        <property name="description"><value>Lamp</value></property>
        <property name="price"><value>5.75</value></property>
    </bean>
 
    <bean id="product2" class="bus.Product">
        <property name="description"><value>Table</value></property>
        <property name="price"><value>75.25</value></property>
    </bean>
 
    <bean id="product3" class="bus.Product">
        <property name="description"><value>Chair</value></property>
        <property name="price"><value>22.79</value></property>
    </bean>
 
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename"><value>messages</value></property>
    </bean>
 
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
             <!--     <prop key="/hello.htm">springappController</prop> -->
                <prop key="/login.htm">loginForm</prop>
            </props>
        </property>
    </bean>
 
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass">
           <value>org.springframework.web.servlet.view.JstlView</value>
        </property>
        <property name="prefix"><value>/WEB-INF/jsp/</value></property>
        <property name="suffix"><value>.jsp</value></property>
    </bean>
</beans>

le fichier web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd'>
 
<web-app>
 
  <servlet>
    <servlet-name>springapp</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
 
  <servlet-mapping>
    <servlet-name>springapp</servlet-name>
    <url-pattern>*.htm</url-pattern>
  </servlet-mapping>
 
  <welcome-file-list>
    <welcome-file>
      index.jsp
    </welcome-file>
  </welcome-file-list>
 
  <taglib>
    <taglib-uri>/spring</taglib-uri>
    <taglib-location>/WEB-INF/spring.tld</taglib-location>
  </taglib>
 
</web-app>

mon controlleur

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package web;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
 
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;
import org.springframework.web.servlet.view.RedirectView;
 
import bus.Login;
 
public class PriceIncreaseFormController extends SimpleFormController {
 
    /** Logger for this class and subclasses */
    protected final Log logger = LogFactory.getLog(getClass());
 
    public ModelAndView onSubmit(Object command)throws ServletException 
    {
 
        String nom = ((Login)command).getPassword();
        return new ModelAndView(new RedirectView(getSuccessView()));
    }
 
    protected Object formBackingObject(HttpServletRequest request) throws ServletException 
    {
        Login priceIncrease = new Login();
        priceIncrease.setNom("dom");
        priceIncrease.setPassword("coucou");
        return priceIncrease;
    }
}

j'en ai un deuxieme mais je ne pense pas que le pb soit deds
Le pb est qu'il cherche le fichier preaceinscrease.jsp
qui etait le nom de login.jsp avant et que j'ai voulu renommer en faisant le modif qui vont avec (pas tout a première vue)
Qui a une idee??
:bug: