seahi/AbsenceManager
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重构：删除没有被使用的代码

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早期规划该项目时，功能多于当前实现。删除的是当前无用的代码，例如根据班级名称查找所有学生等。后期如果完善该项目，可以查看该commit删除的代码
This commit is contained in:
seahi 2024-12-18 09:14:27 +08:00
parent 5b51b8a151
commit a7825643a7
4 changed files with 0 additions and 78 deletions
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7
src/dao/StudentDAO.java
View File

@ -14,13 +14,6 @@ public interface StudentDAO extends BaseDAO<Student> {
*/
Student findByStudentId(String studentId);
/**
* 根据班级查询学生列表
* @param className 班级名称
* @return 学生列表
*/
List<Student> findByClassName(String className);
/**
* 根据姓名模糊查询学生
* @param name 学生姓名

14
src/dao/TeacherDAO.java
View File

@ -13,18 +13,4 @@ public interface TeacherDAO extends BaseDAO<Teacher> {
* @return 教师对象
*/
Teacher findByTeacherId(String teacherId);
/**
* 根据部门查询教师列表
* @param department 部门名称
* @return 教师列表
*/
List<Teacher> findByDepartment(String department);
/**
* 根据姓名模糊查询教师
* @param name 教师姓名
* @return 教师列表
*/
List<Teacher> findByNameLike(String name);
}

19
src/dao/impl/StudentDAOImpl.java
View File

@ -133,25 +133,6 @@ public class StudentDAOImpl implements StudentDAO {
return null;
}
@Override
public List<Student> findByClassName(String className) {
List<Student> students = new ArrayList<>();
String sql = "SELECT * FROM students WHERE class_name = ?";
try (Connection conn = DatabaseUtil.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setString(1, className);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
students.add(mapResultSetToStudent(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return students;
}
@Override
public List<Student> findByNameLike(String name) {
List<Student> students = new ArrayList<>();

38
src/dao/impl/TeacherDAOImpl.java
View File

@ -129,44 +129,6 @@ public class TeacherDAOImpl implements TeacherDAO {
return null;
}
@Override
public List<Teacher> findByDepartment(String department) {
List<Teacher> teachers = new ArrayList<>();
String sql = "SELECT * FROM teachers WHERE department = ?";
try (Connection conn = DatabaseUtil.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setString(1, department);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
teachers.add(mapResultSetToTeacher(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return teachers;
}
@Override
public List<Teacher> findByNameLike(String name) {
List<Teacher> teachers = new ArrayList<>();
String sql = "SELECT * FROM teachers WHERE name LIKE ?";
try (Connection conn = DatabaseUtil.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setString(1, "%" + name + "%");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
teachers.add(mapResultSetToTeacher(rs));
}
} catch (SQLException e) {
e.printStackTrace();
}
return teachers;
}
/**
* 将ResultSet映射为Teacher对象
*/