spring 引入uploadify控件时的302与406

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <property name="messageConverters">
            <list>
                <ref bean="mappingJacksonHttpMessageConverter" />
            </list>
        </property>
    </bean>

    <bean id="mappingJacksonHttpMessageConverter"
        class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <bean class="org.springframework.http.MediaType">
                    <constructor-arg index="0" value="text" />
                    <constructor-arg index="1" value="plain" />
                    <constructor-arg index="2" value="UTF-8" />
                </bean>
                <bean class="org.springframework.http.MediaType">
                    <constructor-arg index="0" value="*" />
                    <constructor-arg index="1" value="*" />
                    <constructor-arg index="2" value="UTF-8" />
                </bean>
                <bean class="org.springframework.http.MediaType">
                    <constructor-arg index="0" value="text" />
                    <constructor-arg index="1" value="*" />
                    <constructor-arg index="2" value="UTF-8" />
                </bean>
                <bean class="org.springframework.http.MediaType">
                    <constructor-arg index="0" value="application" />
                    <constructor-arg index="1" value="json" />
                    <constructor-arg index="2" value="UTF-8" />
                </bean>
            </list>
        </property>
    </bean>