可以参考
<body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%;position: absolute;top: 0;">
<div id="map" style="margin:0 auto;width: 100%;height: 100%"></div>
<script type="text/javascript" src="proj4js/proj4js.js"></script>
<script type="text/javascript" src="leaflet/leaflet.js"></script>
<script type="text/javascript" src="iclient9-leaflet/iclient9-leaflet.min.js"></script>
<script type="text/javascript">
var map;
var url = "http://localhost:8090/iserver/services/map-wmts-ywvectoranno/rest/maps/ywvectoranno";
var scaleDenominators = [1155583.9, 577791.9, 288895.9, 144447.9, 72223.9, 36111.9];
proj4.defs("EPSG:4490", "+proj=longlat +ellps=GRS80 +no_defs");
//leaflet CRS投影设置
var crs = L.Proj.CRS("EPSG:4490", {
origin: [119.82, 29.56],
scaleDenominators: scaleDenominators,
});
map = L.map('map', {
crs: crs,
center: [29.3, 120.05],
zoom: 0
});
L.supermap.tiledMapLayer(url, { cacheEnabled: false }).addTo(map);
</script>
</body>
