nku软工大数据企业实训，基于hadoop的电影行业分析可视化+源码+文档说明+数据

package com.example; import com.example.dao.ArticleMapper; import com.example.dao.CommentMapper; import com.example.pojo.Article; import com.example.pojo.Comment; import jdk.nashorn.internal.objects.annotations.Where; import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import javax.sql.DataSource; import java.util.List; @SpringBootTest class Demo03ApplicationTests { // 依赖注入 @Autowired CommentMapper commentMapper; // 使用注解 @Test public void selectComment(){ System.out.println(commentMapper.selectComment(1)); } @Test public void insertComment(){ System.out.println(commentMapper .insertComment("666,nb", "wfy", 1)); } @Test public void updateComment(){ System.out.println(commentMapper.updateComment("一般般，我不喜欢", 6)); } @Test public void updateComment2(){ Comment comment = new Comment(); comment.setContent("nb,666"); comment.setId(7); System.out.println(commentMapper.updateComment2(comment)); } @Test public void deleteComment(){ System.out.println(commentMapper.deleteComment(6)); } // 数据源测试 @Autowired DataSource ds; @Test public void printDs(){ System.out.println(ds); } // 依赖注入 @Autowired ArticleMapper articleMapper; // 使用xml配置 @Test public void selectArticle(){ Article article = articleMapper.selectArticle(1); System.out.println(article); } @Test public void find(){ List<Comment> commentList = commentMapper.find(1); commentList.stream().forEach(e-> System.out.println(e)); } // 在xml中使用了foreach进行多个查询（in） @Test public void selectArticles(){ List<Article> articles = articleMapper.selectArticles(1,2); articles.stream().forEach(e-> System.out.println(e)); } // 使用了if，where，set标签 @Test public void update(){ System.out.println(commentMapper.updateByIdOrAuthor("good","wfy",2)); } }