22

src/main/java/edu/hjf/mapper/ScoreMapper.java

@@ -26,4 +26,6 @@ public interface ScoreMapper {
     void insertScore(Score score);
     void updateScore(Score score);
     void deleteScoreById(Integer scoreId);
+    // 根据课程ID获取所有相关的成绩ID
+    List<Score> getScoresWithNamesByStudentId(String number);
 }

src/main/java/edu/hjf/pojo/Course.java

@@ -4,6 +4,6 @@ import lombok.Data;
 
 @Data
 public class Course extends BaseEntity{
-    private Integer id;
+    private String id;
     private String name;
 }

src/main/resources/mapper/ScoreMapper.xml

@@ -55,6 +55,23 @@
         JOIN course c ON s.course_id = c.id
         WHERE s.student_id = #{studentId}
     </select>
+    <select id="getScoresWithNamesByStudentId" resultType="edu.hjf.pojo.Score">
+        SELECT
+        s.id AS score_id,
+        s.student_id,
+        s.course_id,
+        s.score,
+        st.name AS student_name,
+        c.name AS course_name
+        FROM
+        score s
+        JOIN
+        student st ON s.student_id = st.id
+        JOIN
+        course c ON s.course_id = c.id
+        WHERE
+        s.student_id = #{number}
+    </select>
 
     <insert id="insertScore">
         INSERT INTO score (student_id, course_id, score, create_time) VALUES (#{studentId}, #{courseId}, #{score}, #{createTime})

src/test/java/edu/hjf/ApplicationTests.java

@@ -16,7 +16,18 @@ import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.Arrays;
 import java.util.List;
-
+import edu.hjf.mapper.CourseMapper;
+import edu.hjf.pojo.Course;
+import edu.hjf.pojo.Score;
+import edu.hjf.mapper.CourseMapper;
+import edu.hjf.mapper.ScoreMapper;
+import edu.hjf.pojo.Course;
+import edu.hjf.pojo.Score;
+import edu.hjf.pojo.Student;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import java.time.LocalDateTime;
 
 @SpringBootTest
 class ApplicationTests {
@@ -28,7 +39,10 @@ class ApplicationTests {
     private StudentScoreMapper studentScoreMapper;
     @Autowired
     private AccountMapper accountMapper;
-    
+    @Autowired
+    private CourseMapper courseMapper;
+
+
     @Test
     public void testGetAll(){
         // 查询所有学生信息
@@ -146,30 +160,82 @@ class ApplicationTests {
             System.out.println("课程：" + score.getCourse().getName() + "，成绩：" + score.getScore());
         }
     }
-    /*@Test
-    public void testGradeUpdate(){
+
+    // 1. 查询所有课程名
+    @Test
+    public void testGetAllCourses() {
+        List<Course> courses = courseMapper.getAllCourses();
+        courses.forEach(course -> System.out.println(course.getName()));
+    }
+
+    // 2. 增加某个课程
+    @Test
+    public void testInsertCourse() {
+        Course course = new Course();
+        course.setId("107");
+        course.setName("医学信息工程");
+        course.setCreateBy(1);
+        course.setCreateTime(LocalDateTime.now());
+        courseMapper.insertCourse(course);
+    }
+
+    // 3. 更新某个课程
+    @Test
+    public void testUpdateCourse() {
+        Course course = new Course();
+        course.setId("103");
+        course.setName("线性代数");
+        course.setUpdateBy(1);
+        course.setUpdateTime(LocalDateTime.now());
+        courseMapper.updateCourse(course);
+    }
+
+    // 4. 删除某个课程
+    @Test
+    public void testDeleteCourse() {
+        courseMapper.deleteCourseById("107");
+    }
+
+    @Test
+    public void testGetScoresWithNamesByStudentId() {
+        List<Score> scores = scoreMapper.getScoresWithNamesByStudentId("12138");
+        for (Score score : scores) {
+            if (score.getStudent() != null) {
+                System.out.println("学生姓名：" + score.getStudent().getName() + "，课程名：" + score.getCourse().getName() + "，成绩：" + score.getScore());
+            } else {
+                System.out.println("学生记录为空");
+            }
+        }
+    }
+
+
+    // 7. 增加某个人某条成绩
+    @Test
+    public void testAddScoreForStudent() {
         Score score = new Score();
-        score.setStudentID("1214    2");
-        score.setCourseID("101");
-        score.setGrade(90);
+        score.setStudentId("12138");
+        score.setCourseId("103");
+        score.setScore(95);
+        score.setCreateTime(LocalDateTime.now());
+        score.setCreateBy(1);
+        scoreMapper.insertScore(score);
+    }
+
+    // 8. 更新某个人某条成绩
+    @Test
+    public void testUpdateScoreForStudent() {
+        Score score = new Score();
+        score.setId(1);
+        score.setScore(98);
         score.setUpdateTime(LocalDateTime.now());
-        gradeMapper.update(score);
-        System.out.println(score);
+        score.setUpdateBy(1);
+        scoreMapper.updateScore(score);
     }
 
-
+    // 9. 删除某个人某条成绩
     @Test
-    public void testGradeDelete(){
-        gradeMapper.deleteByNo(24);
+    public void testDeleteScoreForStudent() {
+        scoreMapper.deleteScoreById(1);
     }
 
-
-    @Test
-    public void testGetByNo(){
-        Score score = gradeMapper.getByNo(1);
-        System.out.println(score);
-    }
-
-   */
-
 }