Method addGeojsonFromUrl

src/openlayers/mapping/WebMap.js:2279–2338

* @private * @function WebMap.prototype.addGeojsonFromUrl * @description 从web服务输入geojson地址的图层 * @param {Object} layerInfo - 图层信息 * @param {number} len - 总的图层数量 * @param {number} layerIndex - 当前图层index

(layerInfo, len, layerIndex)

   * @param {number} layerIndex - 当前图层index
   */
  addGeojsonFromUrl(layerInfo, len, layerIndex) {
    // 通过web添加geojson不需要携带cookie
    let { dataSource } = layerInfo,
      { url } = dataSource,
      that = this;
    FetchRequest.get(url, null, {
      withCredentials: that.isCredentail(url),
      withoutFormatSuffix: true
    })
      .then(function (response) {
        return response.json();
      })
      .then(async function (data) {
        if (!data || data.succeed === false) {
          //请求失败
          if (len) {
            that.errorCallback && that.errorCallback(data.error, 'autoUpdateFaild', that.map);
          } else {
            that.layerAdded++;
            that.sendMapToUser(len);
            that.errorCallback && that.errorCallback(data.error, 'getLayerFaild', that.map);
          }
          return;
        }
        var features;
        if (data.type === 'CSV' || data.type === 'EXCEL') {
          if (layerInfo.dataSource && layerInfo.dataSource.administrativeInfo) {
            //行政规划信息
            data.content.rows.unshift(data.content.colTitles);
            let { divisionType, divisionField } = layerInfo.dataSource.administrativeInfo;
            let geojson = that.excelData2FeatureByDivision(data.content, divisionType, divisionField);
            features = that._parseGeoJsonData2Feature({
              allDatas: { features: geojson.features },
              fileCode: layerInfo.projection
            });
          } else {
            features = await that.excelData2Feature(data.content, layerInfo);
          }
        } else {
          var geoJson = data.content ? JSON.parse(data.content) : data;
          features = that.geojsonToFeature(geoJson, layerInfo);
        }
        if (len) {
          //上图
          await that.addLayer(layerInfo, features, layerIndex);
          that.layerAdded++;
          that.sendMapToUser(len);
        } else {
          //自动更新
          that.map.removeLayer(layerInfo.layer);
          layerInfo.labelLayer && that.map.removeLayer(layerInfo.labelLayer);
          await that.addLayer(layerInfo, features, layerIndex);
        }
      })
      .catch(function (error) {
        that.layerAdded++;
        that.sendMapToUser(len);
        that.errorCallback && that.errorCallback(error, 'getLayerFaild', that.map);