使用数据URI将图像上传到使用Java (PlayFramework-2.6或Plain Java)的服务器

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Base64;

public class ImageUploader {
    public static String convertImageToDataURI(String imagePath) throws IOException {
        File file = new File(imagePath);
        FileInputStream fileInputStream = new FileInputStream(file);
        byte[] imageData = new byte[(int) file.length()];
        fileInputStream.read(imageData);
        fileInputStream.close();

        String base64Image = Base64.getEncoder().encodeToString(imageData);
        String dataURI = "data:image/png;base64," + base64Image;

        return dataURI;
    }
}

import play.mvc.Controller;
import play.mvc.Http;
import play.mvc.Result;

public class ImageController extends Controller {
    public Result uploadImage() {
        Http.MultipartFormData<File> body = request().body().asMultipartFormData();
        Http.MultipartFormData.FilePart<File> imagePart = body.getFile("image");

        if (imagePart != null) {
            String dataURI = ImageUploader.convertImageToDataURI(imagePart.getFile().getAbsolutePath());
            // 在这里处理数据URI，例如保存到服务器或进行进一步处理
            return ok("Image uploaded successfully.");
        } else {
            return badRequest("No image file found in the request.");
        }
    }
}