arcgis for js實現GP服務建立、釋出、呼叫(呼叫GP釋出服務）
阿新 • • 發佈：2019-02-02
1.本例中使用的地圖服務和GP服務都可以從arcgis server manage中拿到；
2.資料型別，這是GP服務的資料型別。每一個GP服務資料型別和JS資料型別進行對應，比如緩衝區模型製作中使用的FeatureClass，,釋出服務說明（對於說明可以參考這裡http://www.cnblogs.com/HPhone/archive/2012/11/18/2775860.html）中可以看到Data Type為GPFeatureRecordSetLayer 則arcgis for js api中使用FeatureSet物件進行構造參；
3.輸入要素和輸出要素名稱可以在此處檢視
呼叫程式碼如下
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>利用GP呼叫自定義buffer工具實現緩衝區分析功能</title> <link rel="stylesheet" type="text/css" href="http://localhost:8087/arcgis_js_api/library/3.22/3.22/esri/css/esri.css" /> <script src="http://localhost:8087/arcgis_js_api/library/3.22/3.22/init.js"></script> <script src="../js/jquery-1.3.1.js"></script> <style> html, body, #map { width: 100%; height: 100%; margin: 0; padding: 0; } </style> <script> require([ "esri/Color", "esri/layers/ArcGISTiledMapServiceLayer", "esri/map", "esri/symbols/SimpleFillSymbol", "esri/symbols/SimpleLineSymbol", "esri/toolbars/draw", "esri/symbols/SimpleMarkerSymbol", "esri/graphic", "esri/geometry/Extent", "esri/tasks/Geoprocessor", "esri/SpatialReference", "esri/tasks/FeatureSet", "esri/tasks/JobInfo", "esri/tasks/LinearUnit" ], function( Color, ArcGISTiledMapServiceLayer, Map,SimpleFillSymbol, SimpleLineSymbol, Draw, SimpleMarkerSymbol, Graphic, Extent, Geoprocessor, SpatialReference, FeatureSet, JobInfo, LinearUnit ) { var map; map = new Map("map", { extent: new Extent({ "xmin":126.08797131337525,"ymin":41.88483304829672,"xmax":130.05572254059723,"ymax":47.20292839632739, "spatialReference":{"wkid":4326}}) }); var Layer = new ArcGISTiledMapServiceLayer("http://localhost:6080/arcgis/rest/services/itms/MapServer", { "id": "layer", "opacity": 0.75, "showAttribution":false }); map.addLayer(Layer); var gpBuffer=new Geoprocessor("http://localhost:6080/arcgis/rest/services/Model/GPServer/bufferModel"); gpBuffer.outSpatialReference=new SpatialReference({wkid:4326}); var bufferParams={}; map.on("click",function (e) { debugger; var featureSet=new FeatureSet(); var graphics=new Graphic(e.mapPoint,new SimpleMarkerSymbol()); featureSet.spatialReference=new SpatialReference({wkid:4326}); map.graphics.add(graphics); featureSet.features=[graphics]; featureSet.geometryType="point"; var Dis = new LinearUnit(); Dis.distance = 0.1; Dis.units = esri.Units.KILOMETERS; bufferParams={ Feature_Class:featureSet, //輸入要素名稱要和發服務的引數名稱一致 Distance:Dis //距離名稱要和發服務的距離引數一致 }; gpBuffer.submitJob(bufferParams,successResult); }) function successResult(result){ var jobId = result.jobId; var status = result.jobStatus; if(status ===JobInfo.STATUS_SUCCEEDED) { gpBuffer.getResultData(jobId, "Output_Feature_Class", addResults); //第二個引數要和發服務的結果集名稱一致 } } function addResults(results){ var features = results.value.features; if(features.length>0) { for (var i = 0, length = features.length; i != length; ++i) { var feature = features[i]; var polySymbolRed = new SimpleFillSymbol(); polySymbolRed.setOutline(new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([0, 0, 0, 0.5]), 1)); polySymbolRed.setColor(new Color([255, 0, 0, 0.5])); feature.setSymbol(polySymbolRed); map.graphics.add(feature); } alert("提示計算成功！"); } else{ alert("提示計算失敗！"); } } }); </script> </head> <body> <div id="map"></div> </body> </html>