配置了

<mvc:annotation-driven conversion-service="conversionService" />

    <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean">
        <property name="converters">
            <set>
                <bean class="com.ixiongyu.controller.converter.StringToDateConverter">
                    <constructor-arg name="datePattern" value="yyyy-MM-dd"/>
                </bean>
            </set>
        </property>
    </bean>

想将字符串转成Date的时候，出现错误：

Failed to convert from type [java.util.ArrayList<?>] totype[java.util.List<org.springframework.core.io.Resource>]

解决方案：
将

<mvc:resources mapping="/js/**" location="/js/"/>
<mvc:resources mapping="/css/**" location="/css/"/>
<mvc:resources mapping="/img/**" location="/img/"/>

改为

 <mvc:default-servlet-handler/>

就ok，意思就是没有映射到的URL交给默认的web容器中的servlet进行处理