如何在Thymeleaf中展示BufferedImage？

我正在开发《万智牌》简易桌面模拟器来自学Spring Boot，当前想实现从Scryfall API获取卡牌图片并在Thymeleaf中展示。目前能通过传入Scryfall的URI来临时实现展示，但我想改成直接在Thymeleaf里展示BufferedImage，不知道具体该怎么做。

当前临时实现 #

控制器代码 #

package mtg;

import java.util.Map;

import org.springframework.boot.json.BasicJsonParser;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

@Controller
@RequestMapping("/sample")
public class SampleCardController {

@ModelAttribute
public void addCardToModel(Model model) {
    RestTemplate rest = new RestTemplate();
    String jsonString = rest.getForObject(
            "https://api.scryfall.com/cards/random", String.class);
    BasicJsonParser parser = new BasicJsonParser();
    Map<String, Object> map = parser.parseMap(jsonString);
    String name = (String) map.get("name");
    String uri = (String) map.get("uri");
    model.addAttribute("cardName", name);
    model.addAttribute("imageURI", uri + "?format=image");
}

@GetMapping
public String showSampleCard() {
    return "sample";
}
}

Thymeleaf模板（sample.html） #

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
  <head>
    <title>Sample</title>
  </head>
  <body>
    <h1>Here's a sample card!</h1>
    <h3 th:text="${cardName}"></h3>
    <img th:src="${imageURI}"/>
  </body>
</html>

目标实现的控制器代码 #

我想改成直接获取BufferedImage并传入模型，但不知道怎么在Thymeleaf中展示这张图片：

package mtg;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;

import javax.imageio.ImageIO;

import org.springframework.boot.json.BasicJsonParser;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

@Controller
@RequestMapping("/sample")
public class SampleCardController2 {

    @ModelAttribute
    public void addCardToModel(Model model) {
        RestTemplate rest = new RestTemplate();
        String jsonString = rest.getForObject(
                "https://api.scryfall.com/cards/random", String.class);
        BasicJsonParser parser = new BasicJsonParser();
        Map<String, Object> map = parser.parseMap(jsonString);
        String name = (String) map.get("name");
        String imageURI = (String) map.get("uri");
        BufferedImage image = null;
        try {
            image = ImageIO.read(new URL(imageURI + "?format=image"));
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        model.addAttribute("cardName", name);
        model.addAttribute("image", image);
    }

    @GetMapping
    public String showSampleCard() {
        return "sample";
    }

}

问题 #

Thymeleaf的img标签似乎只能通过th:src属性传入URL，有没有类似th:text="${cardName}"的方式，直接使用模型中的BufferedImage属性来展示图片？

编辑：可查看下方@Lee Greiner的评论获取模板修复方法。

内容的提问来源于stack exchange，提问作者Markus