springMVC3.2+velocity1.7一般是怎么配置的呢：报错

需要配置velocity实现layout功能
我的配置是这样的：

web.xml(velocity和springmvc部分)

<!-- spring mvc servlet -->
	<servlet>
		<description>spring mvc servlet</description>
		<servlet-name>springMvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<description>spring mvc config</description>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springMvc</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
	<!-- spring mvc servlet end -->
	<!-- velocity servlet -->
	<servlet>
		<servlet-name>velocity</servlet-name>
		<servlet-class>org.apache.velocity.tools.view.servlet.VelocityLayoutServlet</servlet-class>
		<init-param>
			<param-name>org.apache.velocity.properties</param-name>
			<param-value>/WEB-INF/velocity.properties</param-value>
		</init-param>
		<init-param>
     		<param-name>org.apache.velocity.toolbox</param-name>
     		<param-value>/WEB-INF/tools.xml</param-value>
  		</init-param>
  		<load-on-startup>10</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>velocity</servlet-name>
		<url-pattern>*.vm</url-pattern>
	</servlet-mapping>

<!-- velocity引擎 -->  
    <bean id="velocityConfigurer" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">   
        <property name="resourceLoaderPath">   
            <value>/WEB-INF/velocity/</value><!-- 页面文件路径相对于webapp -->
        </property>
        <!--<property name="configLocation" value="/WEB-INF/velocity.properties" />  -->  
        <property name="velocityProperties">
          <props>
             <prop key="input.encoding">UTF-8</prop>
             <prop key="output.encoding">UTF-8</prop>
             <prop key="contentType">text/html;charset=UTF-8</prop>
          </props>
        </property>
    </bean>
    
    <!-- velocity视图解析器 -->  
    <bean id="velocityViewResover" class="org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver">   
        <property name="exposeRequestAttributes" value="true" />
        <property name="cache" value="false"/>
        <property name="layoutUrl" value="/layout/default.vm" />  
        <property name="prefix" value="" />
        <property name="suffix" value=".vm" />   
        <property name="exposeSpringMacroHelpers" value="true" />
		<property name="contentType" value="text/html;charset=UTF-8" />
		<property name="viewClass"
			value="org.springframework.web.servlet.view.velocity.VelocityLayoutView" />
        <!-- 多ViewResovler配置 -->   
        <!-- <property name="order" value="1" /> -->
    </bean>

velocity.properties

runtime.log.logsystem.class = org.apache.velocity.runtime.log.ServletLogChute,org.apache.velocity.tools.view.ServletLogChute

# by default, load resources with webapp resource loader and string resource loader (in that order)
resource.loader = webapp,string
webapp.resource.loader.class = org.apache.velocity.tools.view.WebappResourceLoader
string.resource.loader.class = org.apache.velocity.runtime.resource.loader.StringResourceLoader

# allows getting and setting $request, $session and $application attributes using Velocity syntax,
# like in #set($session.foo = 'bar'), instead of $session.setAttribute('foo','bar')
runtime.introspector.uberspect = org.apache.velocity.util.introspection.UberspectImpl,org.apache.velocity.tools.view.WebappUberspector

default.contentType=text/html
input.encoding=UTF-8
output.encoding=UTF-8
encoding.default=UTF-8
#response.setContentType("text/html;charset=UTF-8");
#request.setContentType("text/html;charset=UTF-8");

# Filepath for error template,
#  relative to web application root directory
tools.view.servlet.error.template = WEB-INF/velocity/Error.vm

# Directory for layout templates,
#  relative to web application root directory
tools.view.servlet.layout.directory = WEB-INF/velocity/layout/

# Filepath of the default layout template
#  relative to the layout directory
#  NOT relative to the root directory of the webapp!
tools.view.servlet.layout.default.template =  default.vm

WEB-INF
    -velocity
            --Error.vm
            --components
            --layout
                            ---default.vm
                            ---layout.vm
                            ---hreader.vm
                            ---footer.vm    
            --templates
    -velocity.properties

这样配置哪里错了呢,求解