Mybatis.zip，狂神

package dao; import org.apache.ibatis.session.SqlSession; import org.junit.Test; import projo.Blog; import utils.IdUtils; import utils.MybatisUtils; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; /** * @Author: wry * @Date: 2021/11/6 16:03 * @Description: */ public class MyTest { SqlSession session = MybatisUtils.getSqlSession(); BlogMapper mapper = session.getMapper(BlogMapper.class); @Test public void test() { Blog blog = new Blog(); blog.setId(IdUtils.getId()); blog.setTitle("Mybatis如此简单"); blog.setAuthor("狂神说"); blog.setCreateTime(new Date()); blog.setViews(9999); mapper.addBlog(blog); blog.setId(IdUtils.getId()); blog.setTitle("Java如此简单"); blog.setAuthor("木鱼说"); blog.setCreateTime(new Date()); blog.setViews(8888); mapper.addBlog(blog); blog.setId(IdUtils.getId()); blog.setTitle("Python如此简单"); blog.setAuthor("主爱说"); blog.setCreateTime(new Date()); blog.setViews(7777); mapper.addBlog(blog); blog.setId(IdUtils.getId()); blog.setTitle("C如此简单"); blog.setAuthor("神说"); blog.setCreateTime(new Date()); blog.setViews(6666); mapper.addBlog(blog); session.commit(); session.close(); } @Test public void test2() { HashMap hashMap = new HashMap(); hashMap.put("author", "秋琪说"); List<Blog> blogs = mapper.queryBlogIF(hashMap); for (Blog blog : blogs) { System.out.println(blog); } session.close(); } @Test public void test3() { HashMap hashMap = new HashMap(); hashMap.put("views", 8888); List<Blog> blogs = mapper.queryBlogChoose(hashMap); for (Blog blog : blogs) { System.out.println(blog); } session.close(); } @Test public void test4() { HashMap hashMap = new HashMap(); hashMap.put("title", "Java如此简单"); hashMap.put("author", "秋琪说"); hashMap.put("id","3"); mapper.updateBlog(hashMap); session.commit(); session.close(); } @Test public void test5(){ HashMap hashMap = new HashMap(); ArrayList list = new ArrayList(); list.add(1); list.add(2); hashMap.put("ids",list); List<Blog> blogs = mapper.queryBlogForeach(hashMap); for (Blog blog : blogs) { System.out.println(blog); } session.close(); } }