解决@RequestBody使用不能class类型匹配的问题

 data:{"stockCode":"601288","startTime":"2011-11-10 09:05","endTime":"2019-11-20 09:10"}",
  type: "POST",
     contentType: "application/json",

<mvc:annotation-driven>
        <mvc:message-converters register-defaults="true">
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"/>
        </mvc:message-converters>
    </mvc:annotation-driven>

data:"{\"stockCode\":\"601288\",\"startTime\":\"2011-11-10 09:05\",\"endTime\":\"2019-11-20 09:10\"}",

contentType : "application/json", //只能是这个

@RequestMapping(value = "/api/user/platform/report", method = RequestMethod.POST)
public ReturnData reportPlatform(RequestParamBean bean) {        //自定义接受实体RequestParamBean 

   logger.info("--------------首次登陆开始----------------");
   try {
      bean.getDeviceFigure();