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package com.ssm.test;
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import com.ssm.entity.Course;
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import com.ssm.mapper.CourseMapper;
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import org.apache.ibatis.io.Resources;
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import org.apache.ibatis.session.SqlSession;
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import org.apache.ibatis.session.SqlSessionFactory;
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import org.apache.ibatis.session.SqlSessionFactoryBuilder;
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import java.io.InputStream;
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public class TestCourse {
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public static void main(String[] args) {
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try {
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// 创建SqlSessionFactory
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SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(Resources.getResourceAsStream("config.xml"));
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SqlSession sqlSession = sqlSessionFactory.openSession(true);
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System.out.println("✅ MyBatis 连接成功！");
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// 获取CourseMapper
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CourseMapper courseMapper = sqlSession.getMapper(CourseMapper.class);
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// 测试添加课程 - "一二二信息"
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System.out.println("\n=== 添加课程：一二二信息 ===");
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Course newCourse = new Course();
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newCourse.setCourseName("一二二信息");
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newCourse.setCredit(3);
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newCourse.setTeacher("张老师");
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courseMapper.addCourse(newCourse);
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System.out.println("添加成功：" + newCourse);
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// 查询验证
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System.out.println("\n=== 查询刚添加的课程 ===");
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Course addedCourse = courseMapper.getCourseById(newCourse.getCourseId());
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if (addedCourse != null) {
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System.out.println("查询结果：" + addedCourse);
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} else {
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System.out.println("未找到该课程");
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}
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// 测试修改课程信息
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System.out.println("\n=== 修改课程信息 ===");
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addedCourse.setCourseName("一二二信息（已修改）");
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addedCourse.setCredit(4);
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addedCourse.setTeacher("李老师");
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courseMapper.updateCourse(addedCourse);
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System.out.println("修改成功：" + addedCourse);
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// 查询验证修改结果
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System.out.println("\n=== 查询修改后的课程 ===");
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Course updatedCourse = courseMapper.getCourseById(addedCourse.getCourseId());
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if (updatedCourse != null) {
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System.out.println("查询结果：" + updatedCourse);
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} else {
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System.out.println("未找到该课程");
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}
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// 测试通过指定id删除课程信息
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System.out.println("\n=== 通过指定id删除课程信息 ===");
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Integer deleteCourseId = addedCourse.getCourseId();
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System.out.println("即将删除课程ID：" + deleteCourseId);
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courseMapper.deleteCourseById(deleteCourseId);
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System.out.println("删除成功！");
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// 查询验证删除结果
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System.out.println("\n=== 查询删除后的课程（应该为空） ===");
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Course deletedCourse = courseMapper.getCourseById(deleteCourseId);
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if (deletedCourse == null) {
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System.out.println("课程已成功删除，查询结果为空");
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} else {
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System.out.println("查询结果：" + deletedCourse);
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}
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sqlSession.close();
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System.out.println("\n✅ 课程CRUD测试完成！");
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} catch (Exception e) {
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System.err.println("❌ 测试失败：");
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e.printStackTrace();
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}
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}
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}
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