WS.QueryObject

查询后台图层中的要素（Feature）。

示例

    var wsApiBasePath = "//api.dituyi.com.cn";//API地址
    var wsApiKey = "6296431363854d62a1bffc31ee7dd6a2";//用户key
    var wsConf = {
        apiBasePath: wsApiBasePath,
        apiKey: wsApiKey
    };
    var wServer = new WS.WServer(wsConf);//服务连接
    var fs = new WS.WServer(wsConf).createFeatureService();//创建要素服务

    //创建查询对象
    var layerName = "msp_demo_pt";//
    var queryObj = fs.createQueryObject(layerName);

    //设置查询条件
    queryObj.setOutFields('*');
    queryObj.setWhere("1=1");
    //执行查询
    queryObj.execute(function (features) {
            for(i in features){
                var feature = features[i];
                var latlng = W.latLng(feature.geometry.coordinates[1],feature.geometry.coordinates[0]);
                var name = feature.properties.name ? feature.properties.name : "";
                var html = "名称：" + name;
                var marker = W.marker(latlng).bindPopup(html).addTo(map);
            }
        });

构造函数

通过WS.FeatureService类的createQueryObject(layerName)方法创建WS.QueryObject对象。

方法