leaflet加载geojson叠加显示功能代码

getGeojsonByName({name:geojson_name}).then(data=>{
     if (this.bondarylayer) {
      if (this.map.hasLayer(this.bondarylayer))
      {
       this.map.removeLayer(this.bondarylayer);
      }
     }
     this.bondarylayer = L.geoJSON(data, {
      style: {
       color: '#E066FF',
       fillOpacity: 0,
       weight: 4,
      },
      pane: 'overlayPane'
     });
     this.map.addLayer(this.bondarylayer);
    });