终于调试通了，，，太不容易了。。

wmts服务的部署见前面的文章，这里主要使用Openlayer来加载wmts服务

index.js文件如下：

 
import 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import WMTSCapabilities from 'ol/format/WMTSCapabilities';
import TileLayer from 'ol/layer/Tile';
import OSM from 'ol/source/OSM';
import WMTS, {optionsFromCapabilities} from 'ol/source/WMTS';

var parser = new WMTSCapabilities();
var map;

var req = new Request('http://192.168.9.147:8080/geowebcache/service/wmts?SERVICE=WMS&REQUEST=GetCapabilities', {method: 'GET', cache: 'reload'});
fetch(req).then(function(response) {
  return response.text();
}).then(function(text) {
    console.log(text);
    var result = parser.read(text);
    console.log(result);
    var options = optionsFromCapabilities(result, {
    layer: 'fztest',
    matrixSet: 'EPSG:3857'
  });

  console.log(options);

  if(null == options)
  {
      return
  }
  
  map = new Map({
    layers: [
      new TileLayer({
        opacity: 1,
        source: new WMTS(options)
      })
    ],
    target: 'map',
    view: new View({
        center: [15315324.5,2577647.3],
      zoom: 16
    })
  });
});
 

 index.html文件如下：

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>WMTS Layer from Capabilities</title>
    <style>
      .map {
        width: 100%;
        height:400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
    <script src="index.js"></script>
  </body>
</html>

package.json如下

 
{
  "name": "wmts",
  "dependencies": {
    "ol": "6.1.1"
  },
  "devDependencies": {
    "parcel": "1.11.0"
  },
  "scripts": {
    "start": "parcel index.html",
    "build": "parcel build --experimental-scope-hoisting --public-url . index.html"
  }
}
 

效果如下：

webgis之Openlayer加载wmts服务_webgis

 几个重点的地方解读：

var req = new Request('http://192.168.9.147:8080/geowebcache/service/wmts?SERVICE=WMS&REQUEST=GetCapabilities', {method: 'GET', cache: 'reload'});

为wmts的服务地址

layer 为发布的图层

webgis之Openlayer加载wmts服务_webgis_02

下图为默认显示的中心点的位置以及显示的缩放图层。

 webgis之Openlayer加载wmts服务_webgis_03