前言

  1. WFS的简单介绍
  2. WFS请求与响应的格式
  3. WFS服务器与客户端
  4. Genius Server WFS请求常见的几个bug

内容概览

WFS的简单介绍

OGC的WMS和WMTS规范都是有关空间数据显示的标准，而WFS（Web Feature Service）则允许用户在分布式的环境下通过HTTP对空间数据进行增、删、改、查。

具体来说，WebGIS服务器除了能够返回一张张地图图像之外，还可以返回绘制该地图图像所使用的真实地理数据。用户利用这些传输到客户端的地理数据可以进行数据渲染可视化、空间分析等操作。而前后端的这种数据交互就是基于WFS规范的。

那么也就能很清楚的说明WMS与WFS之间的区别了。WMS是由服务器将地图图像发送给客户端，而WFS是服务器将矢量数据发送给客户端。也就是在使用WMS时地图由服务器绘制，在使用WFS时地图由客户端绘制。另外最最重要的，使用WFS可以对WebGIS服务器中的地理数据（存储在空间数据库中）直接进行增、删、改、查。

WFS请求与相应的格式

WFS服务一般支持如下功能：

  • GetCapabilities —— 获取WFS服务的元数据（介绍服务中的要素类和支持的操作）
  • DescribeFeatureType —— 获取WFS服务支持的要素类的定义（要素类的元数据，比如要素包含哪些字段）
  • GetFeature —— 获取要素数据
  • GetGmlObject —— 通过XLink获取GML对象
  • Transaction —— 创建、更新、删除要素数据的事务操作
  • LockFeature —— 在事务过程中锁定要素

实际中，WebGIS服务器针对这些功能并不是必须全部实现，而是实现全部或部分。
因此，根据依据这些功能的支持与否，可以将WFS分为3类：

  • Basic WFS —— 必须支持GetCapabilities、DescribeFeature Type、GetFeature功能
  • XLink WFS —— 必须在Basic WFS基础上加上GetGmlObject操作
  • Transaction WFS —— 也称为WFS-T，必须在Basic WFS基础上加上Transaction功能以及支持编辑数据，另外也可以加上GetGmlObject或LockFeature功能

下面是WFS中GetFeatures操作的例子，该请求用于获取osm工作区yt_ysl图层的要素数据

  1. Request URL: http://192.168.80.161:9999/geniusserver/mapservices/kfq_zhgw/wfs
  2. Request Method: POST
  3. Request Payload
  4. <GetFeature xmlns="http://www.opengis.net/wfs" service="WFS" version="1.1.0" outputFormat="application/json" maxFeatures="10" startIndex="0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
  5.     <Query typeName="osm:yt_ysl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
  6.         <Filter xmlns="http://www.opengis.net/ogc">
  7.             <PropertyIsLike wildCard="*" singleChar="." escapeChar="!">
  8.                 <PropertyName>roadname</PropertyName>
  9.                 <Literal>*八角大街*</Literal>
  10.             </PropertyIsLike>
  11.         </Filter>
  12.     </Query>
  13.     <Query typeName="osm:yt_wsl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
  14.         <Filter xmlns="http://www.opengis.net/ogc">
  15.             <PropertyIsLike wildCard="*" singleChar="." escapeChar="!">
  16.                 <PropertyName>roadname</PropertyName>
  17.                 <Literal>*八角大街*</Literal>
  18.             </PropertyIsLike>
  19.         </Filter>
  20.     </Query>
  21.     <Query typeName="osm:yt_hsl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
  22.         <Filter xmlns="http://www.opengis.net/ogc">
  23.             <PropertyIsLike wildCard="*" singleChar="." escapeChar="!">
  24.                 <PropertyName>roadname</PropertyName>
  25.                 <Literal>*八角大街*</Literal>
  26.             </PropertyIsLike>
  27.         </Filter>
  28.     </Query>
  29. </GetFeature>

在上述请求中：

  • service=WFS 表示使用WFS服务
  • version=1.1.0 表示使用1.1.0版本
  • outputFormat=”application/json” 表示返回json数据
  • request=GetFeature 表示执行GetFeature操作
  • typeName=”osm:yt_ysl” 表示针对的是服务器中osm工作区的名为yt_ysl的图层

返回结果如下：

{"type": "FeatureCollection",
 "bbox": [ -90, -180, 90, 180],
 "features": [
  {
   "type":"Feature",
   "id":"yt_ysl.23080",
   "bbox":[121.115639, 37.636511, 121.115641, 37.636568],
   "geometry":
   {"coordinates":[[121.115641,37.636568],[121.115639,37.636511]],"type":"LineString"},
   "properties":{
      "gid":23080,
      "__gid":23083,
      "fid":23083,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":16.938,
      "e_h":16.883,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":1.05,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":1.22,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":"4167230.39",
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":466074.85300255,
      "s_y":4167229.12000084,
      "e_x":466074.59200096,
      "e_y":4167222.77400017,
      "codeid":"37067203PSYS0014948",
      "strcodeid":"37067203PSYS0009249",
      "endcodeid":"37067203PSYS0009250",
      "s_exp":"YS0155339",
      "e_exp":"YS0155338",
      "shape_len":6.35136497141,
      "us_id":"d988b8da-2aec-4888-9170-4a9ad0b48af4",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":6.352102821360244
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.25106",
   "bbox":[121.136391, 37.636406, 121.136392, 37.636421],
   "geometry":
   {"coordinates":[[121.136392,37.636406],[121.136391,37.636421]],"type":"LineString"},
   "properties":{
      "gid":25106,
      "__gid":25109,
      "fid":25109,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":3.506,
      "e_h":3.468,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":0.5,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":0.57,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":467906.32999992,
      "s_y":4167203.74900246,
      "e_x":467906.2310009,
      "e_y":4167205.51099968,
      "codeid":"37067203PSYS0014104",
      "strcodeid":"37067203PSYS0010192",
      "endcodeid":"37067203PSYS0010186",
      "s_exp":"YS0155956",
      "e_exp":"YS0155955",
      "shape_len":1.76477902299,
      "us_id":"ba9c170a-f37d-4fd0-8514-37b0a6ad4431",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":1.764982313469694
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15643",
   "bbox":[121.13449, 37.637696, 121.134501, 37.637706],
   "geometry":
   {"coordinates":[[121.13449,37.637706],[121.134501,37.637696]],"type":"LineString"},
   "properties":{
      "gid":15643,
      "__gid":15641,
      "fid":15641,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":2.867,
      "e_h":1.948,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":0.66,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":1.7,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":467739.00100136,
      "s_y":4167348.71999931,
      "e_x":467739.93499947,
      "e_y":4167347.6380024,
      "codeid":"37067203PSYS0014135",
      "strcodeid":"37067203PSYS0009985",
      "endcodeid":"37067203PSYS0010159",
      "s_exp":"YS0155618",
      "e_exp":"YS0155619",
      "shape_len":1.42936349471,
      "us_id":"4c6ff8cd-9f80-4f66-8dd1-c89d8b1d7ef2",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":1.429496655918879
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15686",
   "bbox":[121.139367, 37.638788, 121.139604, 37.638983],
   "geometry":
   {"coordinates":[[121.139604,37.638788],[121.139367,37.638983]],"type":"LineString"},
   "properties":{
      "gid":15686,
      "__gid":15685,
      "fid":15685,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":0.581,
      "e_h":0.564,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":3.02,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":3.02,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"600",
      "holeseat":null,
      "enabled":0,
      "s_x":468190.88699913,
      "s_y":4167467.12800026,
      "e_x":468169.99500084,
      "e_y":4167488.80500221,
      "codeid":"37067203PSYS0014136",
      "strcodeid":"37067203PSYS0010144",
      "endcodeid":"37067203PSYS0010145",
      "s_exp":"YS0155659",
      "e_exp":"YS0155657",
      "shape_len":30.1059461403,
      "us_id":"877963b4-20a2-4be2-ae58-915f52251b74",
      "psize_num":600,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":30.109333463688763
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15706",
   "bbox":[121.104538, 37.636343, 121.104539, 37.636471],
   "geometry":
   {"coordinates":[[121.104538,37.636471],[121.104539,37.636343]],"type":"LineString"},
   "properties":{
      "gid":15706,
      "__gid":15705,
      "fid":15705,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":36.135,
      "e_h":35.675,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":1,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":1.17,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":465094.73500252,
      "s_y":4167222.37600136,
      "e_x":465094.79200173,
      "e_y":4167208.14299965,
      "codeid":"37067203PSYS0014678",
      "strcodeid":"37067203PSYS0009278",
      "endcodeid":"37067203PSYS0009279",
      "s_exp":"YS0155410",
      "e_exp":"YS0155409",
      "shape_len":14.2331141357,
      "us_id":"cb71c1da-85de-4817-ba58-70de123613d7",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":14.234547374728436
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15752",
   "bbox":[121.137233, 37.636493, 121.13757, 37.636493],
   "geometry":
   {"coordinates":[[121.137233,37.636493],[121.13757,37.636493]],"type":"LineString"},
   "properties":{
      "gid":15752,
      "__gid":15753,
      "fid":15753,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":2.105,
      "e_h":2.049,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":2,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":2.05,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"600",
      "holeseat":null,
      "enabled":0,
      "s_x":467980.55999947,
      "s_y":4167213.15800285,
      "e_x":468010.34499931,
      "e_y":4167213.104002,
      "codeid":"37067203PSYS0014077",
      "strcodeid":"37067203PSYS0010029",
      "endcodeid":"37067203PSYS0010030",
      "s_exp":"YS0126941",
      "e_exp":"YS0126942",
      "shape_len":29.7850489508,
      "us_id":"8491b858-a679-44cc-bcec-19ae4d4768d6",
      "psize_num":600,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":29.788392134660874
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15873",
   "bbox":[121.109768, 37.636302, 121.10977, 37.636329],
   "geometry":
   {"coordinates":[[121.109768,37.636302],[121.10977,37.636329]],"type":"LineString"},
   "properties":{
      "gid":15873,
      "__gid":15875,
      "fid":15875,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":22.67,
      "e_h":21.992,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":0.92,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":1.63,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":465556.35099983,
      "s_y":4167201.65500069,
      "e_x":465556.49400139,
      "e_y":4167204.66399956,
      "codeid":"37067203PSYS0014696",
      "strcodeid":"37067203PSYS0009447",
      "endcodeid":"37067203PSYS0009385",
      "s_exp":"YS0155384",
      "e_exp":"YS0155385",
      "shape_len":3.0123960563,
      "us_id":"d733fd08-41b5-4647-84fb-247d1b324ed2",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":3.01279499743254
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15874",
   "bbox":[121.13478, 37.637888, 121.135084, 37.638102],
   "geometry":
   {"coordinates":[[121.135084,37.638102],[121.13478,37.637888]],"type":"LineString"},
   "properties":{
      "gid":15874,
      "__gid":15876,
      "fid":15876,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":0.605,
      "e_h":0.616,
      "lnote":null,
      "pressure":null,
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      "s_deep":3.03,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":3.03,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
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      "ltype":null,
      "psize":"600",
      "holeseat":null,
      "enabled":0,
      "s_x":467791.61900139,
      "s_y":4167392.4450016,
      "e_x":467764.6380024,
      "e_y":4167368.79100227,
      "codeid":"37067203PSYS0014343",
      "strcodeid":"37067203PSYS0009979",
      "endcodeid":"37067203PSYS0009980",
      "s_exp":"YS0155627",
      "e_exp":"YS0155625",
      "shape_len":35.8815562232,
      "us_id":"5060f4af-d04f-4b7c-b0cf-fbbe190f585e",
      "psize_num":600,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":35.88558081966261
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.15997",
   "bbox":[121.135075, 37.6364, 121.135076, 37.636416],
   "geometry":
   {"coordinates":[[121.135076,37.6364],[121.135075,37.636416]],"type":"LineString"},
   "properties":{
      "gid":15997,
      "__gid":16000,
      "fid":16000,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":3.282,
      "e_h":3.302,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":0.42,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":0.4,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":467790.14900017,
      "s_y":4167203.61499977,
      "e_x":467790.11900139,
      "e_y":4167205.34700203,
      "codeid":"37067203PSYS0014096",
      "strcodeid":"37067203PSYS0010200",
      "endcodeid":"37067203PSYS0010190",
      "s_exp":"YS0155944",
      "e_exp":"YS0155943",
      "shape_len":1.73225979576,
      "us_id":"ed3d1026-619e-49aa-b20b-935450d9e9fb",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":1.732357849797768
   }
}
 ,{
   "type":"Feature",
   "id":"yt_ysl.16159",
   "bbox":[121.132317, 37.634123, 121.132334, 37.634123],
   "geometry":
   {"coordinates":[[121.132317,37.634123],[121.132334,37.634123]],"type":"LineString"},
   "properties":{
      "gid":16159,
      "__gid":16162,
      "fid":16162,
      "starttime":"2012-05-03",
      "endtime":"9999-12-30",
      "company":null,
      "belongcode":null,
      "s_h":2.966,
      "e_h":0.694,
      "lnote":null,
      "pressure":null,
      "prj_no":null,
      "s_deep":0.7,
      "roadname":"八角大街",
      "pipesize":null,
      "e_deep":3.12,
      "gxsub":null,
      "embed":"直埋",
      "bhmaterial":null,
      "totalhole":0,
      "cabnum":null,
      "usedhole":0,
      "structdata":null,
      "material":"砼",
      "flowdir":"0",
      "ltype":null,
      "psize":"200",
      "holeseat":null,
      "enabled":0,
      "s_x":467545.64800072,
      "s_y":4166951.81200218,
      "e_x":467547.12800026,
      "e_y":4166951.81900215,
      "codeid":"37067203PSYS0014373",
      "strcodeid":"37067203PSYS0010132",
      "endcodeid":"37067203PSYS0009948",
      "s_exp":"YS0155739",
      "e_exp":"YS0155740",
      "shape_len":1.48001655396,
      "us_id":"6bd48eda-a11a-4539-adec-6eef5284c721",
      "psize_num":200,
      "basin":null,
      "test_type":null,
      "test_group":null,
      "river_basi":null,
      "geom_lengt":1.480216325095753
   }
}
 ]
}

WFS服务器与客户端

虽然WFS的请求与相应语法初看起来有些吓人，但是在实际使用过程中，并不需要我们手工来拼接，GIS软件通常都支持查看与发布wfs服务

下面就来讲解，如何根据openlayer的WFS api 开实现矢量数据的获取与地图的展示的

openlayer wfs查询

openlayer wfs服务查询的关键代码

// generate a GetFeature request
const featureRequest = new WFS().writeGetFeature({
    srsName: 'EPSG:3857',
  featureNS: 'http://openstreemap.org',
  featurePrefix: 'osm',
  featureTypes: ['yt_ysl'],
  outputFormat: 'application/json',
  filter: andFilter(
      likeFilter('roadname', '*八角大街*'),
    equalToFilter('embed', '直埋')
  )
})
fetch('http://192.168.80.161:9999/geniusserver/mapservices/kfq_zhgw/wfs', {
    method: 'POST',
  body: new XMLSerializer().serializeToString(featureRequest)
}).then((response) => {
    return response.json()
}).then((json) => {
    const features = new GeoJSON().readFeatures(json)
  vectorSource.addFeatures(features)
  map.getView().fit(vectorSource.getExtent())
})

Genius Server WFS请求的几个注意事项

Genius Server，并不是支持wfs所有的api操作的，而且有些操作写法和常规的wfs服务有区别，下面就提示几个防止大家踩坑

Genius WFS 不支持GET请求

大家在进行wfs请求的时候，只能使用POST请求，而且只支持XML格式

Genius WFS 不支持bbox，只能采用Filter查询

<GetFeature xmlns="http://www.opengis.net/wfs" service="WFS" version="1.1.0" outputFormat="application/json" maxFeatures="10" startIndex="0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
    <Query typeName="osm:yt_ysl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
        <Filter xmlns="http://www.opengis.net/ogc">
            <Intersects>
                <PropertyName>geom</PropertyName>
                <Polygon xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
                    <exterior>
                        <LinearRing srsName="EPSG:4326">
                            <posList srsDimension="2">121.191148 37.558649 121.196147 37.558649 121.196147 37.567761 121.191148 37.567761</posList>
                        </LinearRing>
                    </exterior>
                </Polygon>
            </Intersects>
        </Filter>
    </Query>
    <Query typeName="osm:yt_wsl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
        <Filter xmlns="http://www.opengis.net/ogc">
            <Intersects>
                <PropertyName>geom</PropertyName>
                <Polygon xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
                    <exterior>
                        <LinearRing srsName="EPSG:4326">
                            <posList srsDimension="2">121.191148 37.558649 121.196147 37.558649 121.196147 37.567761 121.191148 37.567761</posList>
                        </LinearRing>
                    </exterior>
                </Polygon>
            </Intersects>
        </Filter>
    </Query>
    <Query typeName="osm:yt_hsl" srsName="EPSG:4326" xmlns:osm="http://openstreemap.org">
        <Filter xmlns="http://www.opengis.net/ogc">
            <Intersects>
                <PropertyName>geom</PropertyName>
                <Polygon xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
                    <exterior>
                        <LinearRing srsName="EPSG:4326">
                            <posList srsDimension="2">121.191148 37.558649 121.196147 37.558649 121.196147 37.567761 121.191148 37.567761</posList>
                        </LinearRing>
                    </exterior>
                </Polygon>
            </Intersects>
        </Filter>
    </Query>
</GetFeature>

Genius WFS 区域查询的时候，区域不能是闭合点（正常polygon等都是闭合点，但是Genius奇葩）

Polygon不能是闭合的，正常的四边形 polygon是5个点，但是 genius wfs查询的时候，只能是四个点，不包括闭合点

Genius WFS 目前不支持时间区间查询