良好的秩序是一切的基础。——伯克
代码如下：
代码语言：javascript复制
import lombok.Cleanup;
import lombok.SneakyThrows;
import lombok.val;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.dromara.hutool.core.io.IoUtil;
import org.dromara.hutool.core.net.url.URLUtil;
import org.springframework.http.MediaType;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
/**
* MultiFileUtils
*
* @author VampireAchao
* @since 2023/6/1
*/
public class MultiFileUtils {
/**
* 通过url获取MultipartFile
*
* @param url 文件网络路径
* @param fileName 文件新名称
* @return MultipartFile
*/
@SneakyThrows
public static MultipartFile getMultipartFile(String url, String fileName) {
@Cleanup val inputStream = URLUtil.url(url).openStream();
FileItemFactory factory = new DiskFileItemFactory(16, null);
FileItem fileItem = factory.createItem(fileName, MediaType.MULTIPART_FORM_DATA_VALUE, true, fileName);
val bytes = IoUtil.readBytes(inputStream);
@Cleanup val outputStream = fileItem.getOutputStream();
IoUtil.write(outputStream, false, bytes);
return new CommonsMultipartFile(fileItem);
}
}
