fastjson在spring中配置

配置json转换器，用于@RequestBody,@ResponseBody等注解

  <mvc:annotation-driven>
            <mvc:message-converters register-defaults="true">
                <bean id="fastJson" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                    <property name="supportedMediaTypes">
                        <list>
                            <value>text/json</value>
                            <value>application/json</value>
                        </list>
                    </property>
                </bean>
            </mvc:message-converters>
        </mvc:annotation-driven>