查询订单是否打印成功

调用方式:HTTP POST method:wemili.state

返回结果:JSON字符串

----------服务器返回的结果有如下几种：----------

{"responseCode":0,"msg":"已打印"}
{"responseCode":0,"msg":"未打印"}
{"responseCode":1,"msg":"请求参数错误"}
{"responseCode":2,"msg":"没有找到该索引的订单"}