简单学生管理系统

SimpleStudentManagementSystem/src/main/java/edu/gjq/mapper/CourseMapper.java

@@ -23,4 +23,5 @@ public interface CourseMapper {
 
     // 查询课程学生选课情况
     List<Enrollment> getEnrollmentsByCourseId(String courseId);
+
 }

SimpleStudentManagementSystem/src/main/resources/application.properties

@@ -5,7 +5,7 @@ spring.jackson.time-zone=Asia/Shanghai
 spring.devtools.restart.exclude=static/**
 
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
-spring.datasource.url=jdbc:mysql://10.33.66.120/MB
+spring.datasource.url=jdbc:mysql://10.33.66.120/mb202201090152
 spring.datasource.username=mb202201090152
 spring.datasource.password=GGQTSM233759
 mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

SimpleStudentManagementSystem/src/main/resources/mapper/CourseMapper.xml

@@ -55,7 +55,7 @@
     <resultMap id="EnrollmentResult" type="Enrollment">
         <id column="student_id" property="studentId" />
         <result column="student_name" property="studentName" />
-        <id column="course_id" property="courseId" />
+        <result column="course_id" property="courseId" />
         <result column="course_name" property="courseName" />
     </resultMap>
 

SimpleStudentManagementSystem/src/main/resources/mapper/StudentScoreMapper.xml

@@ -10,14 +10,14 @@
         where s.id = #{id} and s.id = sc.student_id and c.id = sc.course_id
     </select>
     <resultMap id="StudentWithScores" type="StudentScore">
-        <id column="sid" property="student.id"></id>
+        <id column="sid" property="student.id"/>
         <result column="sname" property="student.name"/>
         <collection property="scores" ofType="Score">
             <id column="scid" property="id"/>
-            <id column="score" property="score" />
+            <result column="score" property="score"/>
             <association property="course" javaType="Course">
                 <id column="cid" property="id"/>
-                <id column="cname" property="name"/>
+                <result column="cname" property="name"/>
             </association>
         </collection>
     </resultMap>

SimpleStudentManagementSystem/src/test/java/edu/gjq/ApplicationTests.java

@@ -1,16 +1,11 @@
 package edu.gjq;
 
-import edu.gjq.mapper.AccountMapper;
-import edu.gjq.mapper.ScoreMapper;
-import edu.gjq.mapper.StudentScoreMapper;
-import edu.gjq.mapper.StudentMapper;
-import edu.gjq.pojo.Account;
-import edu.gjq.pojo.Score;
-import edu.gjq.pojo.Student;
-import edu.gjq.pojo.StudentScore;
+import edu.gjq.mapper.*;
+import edu.gjq.pojo.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.dao.DataIntegrityViolationException;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -28,6 +23,8 @@ class ApplicationTests {
     private StudentScoreMapper studentScoreMapper;
     @Autowired
     private AccountMapper accountMapper;
+    @Autowired
+    private CourseMapper courseMapper;
     
     @Test
     public void testGetAll(){
@@ -61,24 +58,25 @@ class ApplicationTests {
         account.setCreateTime(now);
         accountMapper.insertAccount(account);
     }
-    @Test
-    public void testInsertStudent(){
-        Student student = new Student();
-        student.setId("12143");
-        student.setName("陆展博");
-        student.setGender(1);
-        student.setBirthday(LocalDate.of(2002,10,14));
-        student.setCreateBy(1);
-        LocalDateTime now = LocalDateTime.now();
-        student.setCreateTime(now);
-        studentMapper.insertStudent(student);
-    }
+//    @Test
+//    public void testInsertStudent() {
+//        Student student = new Student();
+//        student.setId("12149");
+//        student.setName("小星星");
+//        student.setGender(0);
+//        student.setBirthday(LocalDate.of(2014, 6, 4));
+//        student.setCreateBy(1);
+//        LocalDateTime now = LocalDateTime.now();
+//        student.setCreateTime(now);
+//        studentMapper.insertStudent(student);
+//
+//    }
     @Test
     public void testInsertScore(){
         Score score = new Score();
         score.setStudentId("12142");
-        score.setCourseId("102");
-        score.setScore(90);
+        score.setCourseId("106");
+        score.setScore(60);
         score.setCreateBy(1);
         LocalDateTime now = LocalDateTime.now();
         score.setCreateTime(now);
@@ -137,7 +135,8 @@ class ApplicationTests {
             System.out.println(score);
         }
     }
-    
+
+//    根据学号输出学生所有的课程成绩
     @Test
     public void testStudentGrade2(){
         StudentScore studentScore = studentScoreMapper.getByNo("12138");
@@ -171,5 +170,31 @@ class ApplicationTests {
     }
     
    */
+    @Test
+    public void testGetAllCourses() {
+        List<Course> courses = courseMapper.getAll();
+        System.out.println(courses);
+    }
+
+    @Test
+    public void testInsertCourse() {
+        Course course = new Course();
+        course.setId(107);
+        course.setName("新课程");
+        courseMapper.insertCourse(course);
+    }
+
+    @Test
+    public void testUpdateCourse() {
+        Course course = new Course();
+        course.setId(107);
+        course.setName("更新课程");
+        courseMapper.update(course);
+    }
+
+    @Test
+    public void testDeleteCourse() {
+        courseMapper.deleteById("107");
+    }
     
 }