Method getDatasources

src/openlayers/mapping/WebMap.js:4374–4386

* @private * @function WebMap.prototype.getDatasources * @description 获取关系型文件发布的数据服务中数据源的名称 * @param {string} url - 获取数据源信息的url * @returns {Promise } 数据源名称

(url)

   *  @returns {Promise<T | never>} 数据源名称
   */
  getDatasources(url) {
    let requestUrl = this.getRequestUrl(`${url}/data/datasources.json`);
    return FetchRequest.get(requestUrl, null, {
      withCredentials: this.isCredentail(requestUrl)
    })
      .then(function (response) {
        return response.json();
      })
      .then(function (datasource) {
        let datasourceNames = datasource.datasourceNames;
        return datasourceNames[0];
      });
  }
  /**
   * @private
   * @function WebMap.prototype.getDataService