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>