安装three.js:

npm install three

页面部分代码：

<div style="width: 100%; height: 300px; position: relative;">
      <div style="height: 200px; background-color: white; width: 100%; position: absolute; top: 0;">
      <div id="threeView" style="width: 100%; height: 200px; background-color: #f1f1f1; position: absolute; bottom: 0;"></div>
</div>

js部分代码：

initThree(){
      console.log('打印场景API',THREE.Scene)
      scene=new THREE.Scene();
      var ambient = new THREE.AmbientLight(0xffffff,5);
      scene.add(ambient) //添加环境光

      var width = window.innerWidth
      var height = 300
      var k = width/height;

      camera = new THREE.PerspectiveCamera(45,k,1,1000);
      camera.position.set(0,0,20);
      camera.lookAt(new THREE.Vector3(0, 0, 0));
      renderer = new THREE.WebGLRenderer({
					antialias: true
				});
				renderer.setSize(width, height);
				renderer.setClearColor(0XECF1F3, 0);
				const element = document.getElementById('threeView');
				element.appendChild(renderer.domElement);

				renderer.render(scene, camera);
				this.animate();
    },
    createControls() {
				controls = new OrbitControls(camera, renderer.domElement)
				controls.enableZoom = true;
			},
			// 修改为仅使用STLLoader加载模型的方法
			loadSTLModel() {
				let loader = new GLTFLoader();
				loader.load('scene.gltf', function(gltf) {
					// 使用加载的几何体创建材质和网格
          console.log(loader)
					// const material = new THREE.MeshPhongMaterial({
					// 	color: 0xffffff
					// });
					// const mesh = new THREE.Mesh(geometry, material);
          const mesh = gltf.scene;
          scene.add(mesh);
          const rotationXDegrees = -90 // 模型沿X轴旋转45度
          const rotationXRadians = THREE.MathUtils.degToRad(rotationXDegrees);
          mesh.rotation.y = rotationXRadians;
					// 添加模型到场景
					scene.add(mesh);
					// 调整模型大小
					mesh.scale.set(3, 3, 3);
					// 设置模型位置
					mesh.position.set(0, 0, 0);
          const animations = gltf.animations;
        if (animations && animations.length > 0) {
          // 创建一个动画混合器
          this.mixer = new THREE.AnimationMixer(mesh);

          // 查找你想播放的动画，例如假设第一个动画是开门动画
          const animationAction = this.mixer.clipAction(animations[0]);
          this.start=this.mixer.clipAction(animations[0]);
          animationAction.stop(); // 默认播放动画
        }
				}.bind(this));
			}

部分效果图：