利用freemarker和minIO生成文章详情html并存入minIO

package com.heima.article.test;

import com.alibaba.fastjson.JSONArray;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.heima.article.ArticleApplication;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.service.ApArticleService;
import com.heima.file.service.FileStorageService;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleContent;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@SpringBootTest(classes = ArticleApplication.class)
@RunWith(SpringRunner.class)
public class ArticleFreemarkerTest {

    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

    @Autowired
    private Configuration configuration;

    @Autowired
    private FileStorageService fileStorageService;

    @Autowired
    private ApArticleService articleService;



    @Test
    public void createStaticUrlTest() throws IOException, TemplateException {
        //已知文章id
        //1、获取文章内容
        List<ApArticleContent> apArticleContents = apArticleContentMapper.selectList(Wrappers.<ApArticleContent>lambdaQuery().select(ApArticleContent::getArticleId, ApArticleContent::getContent));
        for(ApArticleContent apArticleContent: apArticleContents){

            if(apArticleContent != null && StringUtils.isNotBlank(apArticleContent.getContent())){
                //2、文章内容通过freemarker生成html文件
                Template template = configuration.getTemplate("article.ftl");
                //数据模型
                Map<String, Object> content = new HashMap<>();
                content.put("content", JSONArray.parseArray(apArticleContent.getContent()));
                StringWriter out = new StringWriter();
                //合成
                template.process(content, out);
                //3、把html文件上传到minio中
                ByteArrayInputStream in = new ByteArrayInputStream(out.toString().getBytes());
                String path = fileStorageService.uploadHtmlFile("", apArticleContent.getArticleId() + ".html", in);
                //4、修改ap_article表，保存static_url字段
                articleService.update(Wrappers.<ApArticle>lambdaUpdate().eq(ApArticle::getId ,apArticleContent.getArticleId())
                        .set(ApArticle::getStaticUrl, path));
            }
        }


    }
}