弹出窗口使用WMS与Leaflet

我想知道传单从地理服务器传来的传单如何迭代并显示带有信息的弹出窗口 . 请，有人可以在jsfiddle做一些事情，所以我可以理解，因为我无法弄清楚如何做到这一点 . 基本上这就是我想要的，带来一层地理服务器，并能够从每个部分的弹出窗口获取信息 . 我的代码就是这样：

var stComerciaisLayer= L.tileLayer.wms("http://...:8080/geoserver/wms/", {
          layers: 'IGEO:setor_comercial_geo',
          format: 'image/png',
          transparent: true,
          attribution: "Test"
        });

我怎么放弹出窗口？谢谢！

我完全复制了这个：

http://bl.ocks.org/rclark/6908938

但不工作：

<script src="L.TileLayer.BetterWMS.js"></script>

var stComerciaisLayer= L.tileLayer.betterWms("http://...:8080/geoserver/wms/", {
          layers: 'IGEO:setor_comercial_geo',
          format: 'image/png',
          transparent: true,
          attribution: "Some test"
        });

L.TileLayer.BetterWMS.js

L.TileLayer.BetterWMS = L.TileLayer.WMS.extend({

  onAdd: function (map) {
    // Triggered when the layer is added to a map.
    //   Register a click listener, then do all the upstream WMS things
    L.TileLayer.WMS.prototype.onAdd.call(this, map);
    map.on('click', this.getFeatureInfo, this);
  },

  onRemove: function (map) {
    // Triggered when the layer is removed from a map.
    //   Unregister a click listener, then do all the upstream WMS things
    L.TileLayer.WMS.prototype.onRemove.call(this, map);
    map.off('click', this.getFeatureInfo, this);
  },

  getFeatureInfo: function (evt) {
    // Make an AJAX request to the server and hope for the best
    var url = this.getFeatureInfoUrl(evt.latlng),
        showResults = L.Util.bind(this.showGetFeatureInfo, this);
    $.ajax({
      url: url,
      success: function (data, status, xhr) {
        var err = typeof data === 'string' ? null : data;
        showResults(err, evt.latlng, data);
      },
      error: function (xhr, status, error) {
        showResults(error);  
      }
    });
  },

  getFeatureInfoUrl: function (latlng) {
    // Construct a GetFeatureInfo request URL given a point
    var point = this._map.latLngToContainerPoint(latlng, this._map.getZoom()),
        size = this._map.getSize(),

        params = {
          request: 'GetFeatureInfo',
          service: 'WMS',
          srs: 'EPSG:4326',
          styles: this.wmsParams.styles,
          transparent: this.wmsParams.transparent,
          version: this.wmsParams.version,      
          format: this.wmsParams.format,
          bbox: this._map.getBounds().toBBoxString(),
          height: size.y,
          width: size.x,
          layers: this.wmsParams.layers,
          query_layers: this.wmsParams.layers,
          info_format: 'application/json'
        };

    params[params.version === '1.3.0' ? 'i' : 'x'] = point.x;
    params[params.version === '1.3.0' ? 'j' : 'y'] = point.y;

    return this._url + L.Util.getParamString(params, this._url, true);
  },

  showGetFeatureInfo: function (err, latlng, content) {
    if (err) { console.log(err); return; } // do nothing if there's an error

    // Otherwise show the content in a popup, or something.
    L.popup({ maxWidth: 800})
      .setLatLng(latlng)
      .setContent(content)
      .openOn(this._map);
  }
});

L.tileLayer.betterWms = function (url, options) {
  return new L.TileLayer.BetterWMS(url, options);  
};

这个错误：

Failed to load http://...:8080/geoserver/wms/?REQUEST=GetFeatureInfo&SERVICE=WMS&SRS=EPSG%3A4326&STYLES=&TRANSPARENT=true&VERSION=1.1.1&FORMAT=image%2Fpng&BBOX=-38.74431610107422%2C-4.0605082148574105%2C-38.26400756835938%2C-3.726884196645965&HEIGHT=974&WIDTH=1399&LAYERS=IGEO%3Asetor_comercial_geo&QUERY_LAYERS=IGEO%3Asetor_comercial_geo&INFO_FORMAT=application%2Fjson&X=821&Y=172: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.



leaflet.js:5 Uncaught TypeError: Cannot read property 'lat' of undefined