用于分析json格式的nginx日志，统计分析
curl http'://127.0.0.1:50000/api/query?domain=smarttv.zeasn.tv&date=20180404'
{ "date": "20180404", "pv": 3800369, "state": { "200": 2893751, "206": 3, "301": 130, "302": 27, "304": 1392, "307": 802, "400": 709, "401": 854346, "403": 5464, "404": 28122, "408": 414, "412": 14925, "414": 274, "500": 3, "502": 7 }, "uv": 2543288 }