在jsp页面cad文件

<!-- JSP页面中的上传表单 -->
<form action="upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file" accept=".dwg,.dxf" />
    <input type="submit" value="上传" />
</form>

// Servlet中的文件处理逻辑
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    Part filePart = request.getPart("file");
    String fileName = Paths.get(filePart.getSubmittedFileName()).getFileName().toString();
    InputStream fileContent = filePart.getInputStream();
    
    // 保存文件到服务器或进行进一步处理
}

// 示例代码：使用Three.js和Teigha解析并显示CAD文件
// 注意：实际应用中需要服务器端配合处理文件解析
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 假设已经通过某种方式获取了CAD文件的图形数据
var geometry = new THREE.BoxGeometry();
var material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
var cube = new THREE.Mesh(geometry, material);
scene.add(cube);

camera.position.z = 5;

function animate() {
    requestAnimationFrame(animate);
    cube.rotation.x += 0.01;
    cube.rotation.y += 0.01;
    renderer.render(scene, camera);
}
animate();