用java写一段代码用于上传包含建筑模型的文件夹到根目录下面

好的，以下是用Java实现上传包含建筑模型的文件夹到根目录下面的代码：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class UploadModel {

    public static void main(String[] args) {
        String uploadUrl = "http://localhost:8080/upload"; // 上传接口地址
        String folderPath = "/path/to/folder"; // 文件夹路径
        String rootPath = "/"; // 根目录路径

        // 遍历文件夹
        File folder = new File(folderPath);
        if (folder.isDirectory()) {
            File[] files = folder.listFiles();
            for (File file : files) {
                String fileName = file.getName();
                String filePath = file.getAbsolutePath();
                String uploadFilePath = rootPath + fileName;

                // 上传文件
                try {
                    URL url = new URL(uploadUrl);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setRequestMethod("POST");
                    conn.setDoOutput(true);
                    conn.setDoInput(true);
                    conn.setUseCaches(false);
                    conn.setRequestProperty("Connection", "Keep-Alive");
                    conn.setRequestProperty("Charset", "UTF-8");
                    String boundary = "-----------------------------" + System.currentTimeMillis();
                    conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);

                    // 文件参数
                    StringBuilder sb = new StringBuilder();
                    sb.append("--").append(boundary).append("\r\n");
                    sb.append("Content-Disposition: form-data; name=\"file\"; filename=\"").append(fileName).append("\"\r\n");
                    sb.append("Content-Type: application/octet-stream\r\n\r\n");
                    byte[] headerBytes = sb.toString().getBytes("UTF-8");
                    byte[] footerBytes = ("\r\n--" + boundary + "--\r\n").getBytes("UTF-8");
                    long contentLength = headerBytes.length + file.length() + footerBytes.length;

                    // 开始上传
                    conn.setRequestProperty("Content-Length", String.valueOf(contentLength));
                    conn.connect();
                    conn.getOutputStream().write(headerBytes);
                    InputStream is = new FileInputStream(file);
                    byte[] buffer = new byte[8192];
                    int len = -1;
                    while ((len = is.read(buffer)) != -1) {
                        conn.getOutputStream().write(buffer, 0, len);
                    }
                    is.close();
                    conn.getOutputStream().write(footerBytes);

                    // 上传成功
                    int responseCode = conn.getResponseCode();
                    if (responseCode == HttpURLConnection.HTTP_OK) {
                        System.out.println("上传成功：" + filePath + " -> " + uploadFilePath);
                    } else {
                        System.out.println("上传失败：" + filePath + " -> " + uploadFilePath);
                    }
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}

需要注意的是，这段代码仅供参考，具体的上传接口实现可能有所不同，也需要根据实际需求进行相应的调整。