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二次開發(fā)手冊_wfs服務(wù)-閱讀頁

2025-06-15 02:56本頁面
  

【正文】 uence xsd:element name=OBJECTID type=INT/ xsd:element name=NAME type=STRING/ xsd:element name=COUNTRY type=STRING/ xsd:element name=POPULAT type=DOUBLE/ xsd:element name=SHAPE type=GEOMETRY/ /xsd:sequence /xsd:extension /xsd:plexContent /xsd:plexType/xsd:schema9) 返回參數(shù)說明:節(jié)點說明第一個element請求的WFS版本sequence字段序列結(jié)點sequence內(nèi)部的element1) name屬性表示字段名2) type屬性表示字段類型 GetFeature接口1) 名稱:WFS獲取數(shù)據(jù)服務(wù)2) 標準命名:GetFeature3) 說明:GetFeature根據(jù)查詢條件獲取WFS服務(wù)器上Feature數(shù)據(jù)集。SERVICE=WFSamp。TYPENAME=world:citiesamp。FORMAT=text/xml。每個Feature有一個唯一的ID。否定義GetFeature的數(shù)據(jù)返回格式,默認為text/xml。1. BBOX范圍查詢請求: :2087/world/wfs?VERSION=amp。TYPENAME=world:citiesamp。FORMAT=text/xml。圖元信息寫在以其所在的圖層名為節(jié)點名的XML節(jié)點中。REQUEST=GetFeatureamp。FEATUREID=,amp。subtype=gml/l 返回結(jié)果:?xml version= encoding=GBK?wfs:FeatureCollection xmlns= xmlns:wfs= xmlns:gml= xmlns:xsi= xmlns:schemaLocation= gml:featureMember cities id= AREA/AREA PERIMETER/PERIMETER NAMEBelfast/NAME COUNTRYUK/COUNTRY CAPITAL/CAPITAL SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember gml:featureMember cities id= AREA/AREA PERIMETER/PERIMETER NAMEIbadan/NAME COUNTRYNigeria/COUNTRY CAPITAL/CAPITAL SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember gml:featureMember cities id= AREA/AREA PERIMETER/PERIMETER NAMEEnugu/NAME COUNTRYNigeria/COUNTRY CAPITAL/CAPITAL SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember/wfs:FeatureCollection3. 條件查詢請求::2087/world/wfs?BODY=?xml version= ? GetFeature Query typeName=world:cities maxFeatures=2 //maxFeatures表示返回最大記錄條數(shù)ogc:Filter //查詢過濾條件ogc:Or //Or表示邏輯關(guān)系為或 ogc:And //And表示邏輯關(guān)系為與 ogc:PropertyIsEqualTo // PropertyIsEqualTo表示字段值等于指定值條件 ogc:PropertyNameCOUNTRY/ogc:PropertyName //PropertyName表示字段名稱 ogc:LiteralRussia/ogc:Literal //Literal表示指定值 /ogc:PropertyIsEqualTo ogc:PropertyIsGreaterThanOrEqualTo //表示字段值大于或者等于指定值 ogc:PropertyNamePOPULAT/ogc:PropertyName ogc:Literal1000000/ogc:Literal /ogc:PropertyIsGreaterThanOrEqualTo /ogc:And ogc:And ogc:PropertyIsEqualTo ogc:PropertyNameCOUNTRY/ogc:PropertyName ogc:LiteralChina/ogc:Literal /ogc:PropertyIsEqualTo ogc:PropertyIsLessThan //表示字段值小于指定值 ogc:PropertyNameCITIES_ID/ogc:PropertyName ogc:Literal200/ogc:Literal /ogc:PropertyIsLessThan /ogc:And/ogc:Or /ogc:Filter /Query /GetFeature這一查詢條件轉(zhuǎn)換為SQL語言為: ((COUNTRY=39。 AND POPULAT=1000000)) OR (COUNTRY=39。 AND CITIES_ID200)l 參數(shù)說明:節(jié)點說明PropertyIsEqualTo=PropertyIsNotEqualToPropertyIsLessThanPropertyIsGreaterThanPropertyIsLessThanOrEqualTo=PropertyIsGreaterThanOrEqualTo=PropertyIsLikelikel 返回結(jié)果:?xml version= encoding=GBK?wfs:FeatureCollection xmlns= xmlns:wfs= xmlns:gml= xmlns:xsi= xmlns:schemaLocation= gml:featureMember cities id= AREA/AREA PERIMETER/PERIMETER NAMESaint Petersburg/NAME COUNTRYRussia/COUNTRY CAPITAL/CAPITAL SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember gml:featureMember cities id= AREA/AREA PERIMETER/PERIMETER NAMEPerm39。39。/NAME COUNTRYRussia/COUNTRY CAPITAL/CAPITAL SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember………………/wfs:FeatureCollectionl 返回參數(shù)說明:FeatureCollection:Feature集合;featureMember:單個Feature結(jié)點;l 返回結(jié)果:?xml version= encoding=GBK?wfs:FeatureCollection xmlns= xmlns:wfs= xmlns:gml= xmlns:xsi= xmlns:schemaLocation= gml:featureMember //單個Feature結(jié)點; cities id= //cities結(jié)點表示cities圖層的一個Feature,id屬性對應(yīng)該Feature的id,cities結(jié)點內(nèi)部的子結(jié)點為字段值的信息,結(jié)點名表示字段名,結(jié)點的值表示字段的值; OBJECTID234/OBJECTID NAMENiamey/NAME COUNTRYNiger/COUNTRY POPULAT/POPULAT SHAPE //空間信息字段 gml:Point xmlns:gml= //Point表示點類型 gml:coordinates,/gml:coordinates//coordinates表示坐標串 /gml:Point /SHAPE /cities /gml:featureMember gml:featureMember cities id= OBJECTID344/OBJECTID NAMEMaiduguri/NAME COUNTRYNiger/COUNTRY POPULAT/POPULAT SHAPE gml:Point xmlns:gml= gml:coordinates,/gml:coordinates /gml:Point /SHAPE /cities /gml:featureMember …../wfs:FeatureCollection Transaction接口1) 名稱:WFS數(shù)據(jù)操作2) 標準命名:Transaction3) 說明:為圖層添加、修改、刪除Feature的接口,實現(xiàn)對WFS圖層的編輯。SERVICE=WFSamp。BODY=6) 參數(shù)說明:參數(shù)是否必須說明VERSION=version是請求的WFS版本SERVICE=WFS是指定請求的服務(wù)類型為WFS服務(wù),必須為WFSREQUEST=Transaction是指定請求的服務(wù)名為Transaction服務(wù)BODY是對圖層編輯的xml描述7) 請示例求::2087/world/wfs?VERSION=amp。REQUEST=Transactionamp。節(jié)點名子節(jié)點名說明PropertyName字段名稱Value該字段的值l Delete節(jié)點節(jié)點名節(jié)點屬性屬性說明子節(jié)點名說明DeletetypeNameWFS要刪除圖元的圖層的名稱Filter過濾條件節(jié)點,定義更新的Feature需要滿足的條件。圖 Error! No text of specified style in document.2注冊WFS服務(wù)示例 注冊圖層訪問頁面://ip:7001/PGIS_S_IMS/,點擊“WMS/WFS服務(wù)管理接口”,選擇“RegisterLayer”,填寫“服務(wù)名”為已經(jīng)注冊好的wfs服務(wù),“版本”,服務(wù)類型為“wfs”,填寫“表名”對應(yīng)數(shù)據(jù)庫中的表名,填寫“發(fā)布圖層名”為發(fā)布出來圖層名,填寫“連接URI”為連接Arcsde的字符串,點擊“請求”按鈕(圖58給WFS服務(wù)注
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