我已经按照此链接https://developers.arcgis.com/javascript/3/jsapi/findexistinglocations-amd.html#event-job-submit创建了一个用于查找现有位置分析的自定义 HTML 页面 我能够执行属性和已发布要素图层的空间查询。当我使用令牌在地图上加载安全要素图层（与组织共享）时。因此图层正在地图上加载，并且“添加表达式”也正在添加到 findexistinglocations 小部件中的图层。但是每当加载图层时，就会出现这个错误。[无法读取未定义的属性“人口统计”] [1]
https://i.stack.imgur.com/CGlZD.jpg
<script>
var _token;
require([
"dojo/ready","dojo/on",
"dojo/_base/array",
"dojo/dom",
"dijit/registry",
"dojo/dom-style",
"dojo/parser","dojo/dom",
"dijit/layout/BorderContainer",
"dijit/layout/ContentPane",
"esri/map",
"esri/IdentityManager",
"esri/arcgis/Portal",
"esri/arcgis/utils",
"esri/toolbars/draw",
"esri/graphic",
"esri/layers/GraphicsLayer",
"esri/symbols/SimpleFillSymbol",
"esri/urlUtils",
"esri/config",
"esri/dijit/HomeButton",
"esri/domUtils",
"esri/request",
"dojo/query",
"esri/layers/FeatureLayer",
"esri/InfoTemplate",
"esri/arcgis/Portal",
"dojo/_base/array",
"esri/dijit/editing/Editor",
"esri/dijit/analysis/FindExistingLocations",
"esri/dijit/Legend",
"dojo/domReady!"
], function(
ready,
on,
array,
dom,
registry,
domStyle,
parser,
dom,
BorderContainer,
ContentPane,
Map,
esriId,
arcgisPortal,
arcgisUtils,
Draw,
Graphic,
GraphicsLayer,
SimpleFillSymbol,
urlUtils,
esriConfig,
HomeButton,
domUtils,
esriRequest,
query,
FeatureLayer,
InfoTemplate,
arcgisPortal,
arrayUtils,
Editor,
FindExistingLocations,
Legend
)
{
ready(function(){
parser.parse();
esri.config.defaults.io.proxyUrl = "proxy.ashx";
//when close button is clicked for details panel show tool
on(dom.byId("closeBtn"), "click", function(){
domUtils.hide(dom.byId("infoPanel"));
domUtils.show(dom.byId("toolPanel"));
});
var map = new Map("mapDiv",{
basemap: "streets",
center: [],
zoom: 12
});
var home = new HomeButton({
map:map
}, "HomeButton");
home.startup();
_token = localStorage.getItem("Tokenfile");
var token =
{userId: "username",
server: "https://test.arcgis.com/sharing/rest/",
token: _token,
expires:60,
ssl: false
}
//console.log(token);
esriId.registerToken(token);
var content = "<b>FID</b>: ${FID}" ;
var infoTemplate = new InfoTemplate("Information", content);
var source = new FeatureLayer("https://test.arcgis.com/e2CkmW5zjy3NzZyL7/ArcGIS/rest/services/test1/FeatureServer/0",{
id: "analysisLayer",
name: "CR",
outFields: ["*"],
infoTemplate: infoTemplate
});
var content = "<b>FID</b>: ${FID}" ;
var infoTemplate = new InfoTemplate("Information", content);
var target = new FeatureLayer("https://test.arcgis.com/e2CkmW5ncfgzf3NzZyL7/ArcGIS/rest/services/test2/FeatureServer/0",{
name: "village",
infoTemplate: infoTemplate
});
map.addLayers([source,target]);
map.on("layers-add-result", initializeTool);
function initializeTool()
{ debugger;
showToolPanel();
//Define the default inputs for the Find Location widget
var findLocationParams = {
id: "analysisTool",
analysisLayer: source,
portalUrl: "https://www.arcgis.com",
inputLayers: [source, target],
showHelp: false,
showSelectAnalysisLayer: false,
outputLayerName : "test",
showCredits: false,
map: map,
returnFeatureCollection: true
};
var findLocation = new FindExistingLocations(findLocationParams, "findLocationDiv");
findLocation.startup();
//If any errors occur reset the widget (Not Working...troubleshoot)
on(findLocation, "job-fail", function(params){
resetTool("error");
});
on(findLocation, "job-status", function(status){
if(status.jobStatus === 'esriJobFailed'){
alert("Job Failed: " + status.messages[0].description);
resetTool("error");
}
});
on(findLocation, "job-cancel", function(){
resetTool("error");
});
on(findLocation, "job-submit", function(result){
//display the loading icon
domUtils.show(dom.byId("loader"));
resetTool("submit");
});
//The findLocation analysis has finished successfully - display the results
on(findLocation, "job-result", function(result){
//hide the loading icon
domUtils.hide(dom.byId("loader"));
//add the results to the map and display the legend.
if(result.value){
var template = new InfoTemplate("Results", "${*}");
var resultLayer = new FeatureLayer(result.value.url || result.value, {
infoTemplate: template,
outFields: ["*"],
opacity: 0.7, //default too transparent
id: "resultLayer"
});
map.addLayer(resultLayer);
alert("Done");
}
if(result.analysisReport){
//hide the find existing location panel and show the analysis info.
domUtils.hide(dom.byId("toolPanel"));
domUtils.show(dom.byId("infoPanel"));
dom.byId("analysisInfo").innerHTML = result.analysisReport;
}
//re-enable the find existing location tool
findLocation.set("disableRunAnalysis", false);
});
}
map.on("load", createToolbar);
// loop through all dijits, connect onClick event
// listeners for buttons to activate drawing tools
registry.forEach(function(d) {
if ( d.declaredClass === "dijit.form.Button" ) {
d.on("click", activateTool);
}
});
function activateTool() {
var tool = this.label.toUpperCase().replace(/ /g, "_");
toolbar.activate(Draw[tool]);
map.hideZoomSlider();
}
function createToolbar(themap) {
toolbar = new Draw(map);
toolbar.on("draw-end", addToMap);
}
function addToMap(evt) {
//console.log(evt);
var symbol;
toolbar.deactivate();
map.showZoomSlider();
symbol = new SimpleFillSymbol();
var graphic = new Graphic(evt.geometry, symbol);
//emptyLayer.add(graphic);
//console.log(emptyLayer);
}
function resetTool(status){
if(status === "error"){
var tool = registry.byId("analysisTool");
tool.set("disableRunAnalysis", false);
}
//Analysis started lets clean up any old results
//Hide the legend, remove the results layer
var layer = map.getLayer("resultLayer");
if(layer){
map.removeLayer(layer);
}
// domUtils.hide(dom.byId("legendContainer"));
}
function showToolPanel(){
//expand the right panel to display the content
var cp = registry.byId("rightPanel");
domStyle.set(cp.domNode, {width: "20%"});
registry.byId("mainWin").resize();
map.reposition();
map.resize();
}
});
});
</script>````
[1]: https://i.stack.imgur.com/1TY4Y.jpg