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seahi 2024-12-23 20:24:04 +08:00
parent 7b5dffa6a7
commit 18a584f73e
3 changed files with 0 additions and 75 deletions
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7
src/dao/BaseDAO.java
View File

@ -21,13 +21,6 @@ public interface BaseDAO<T> {
*/
int deleteById(int id);
/**
* 更新记录
* @param entity 实体对象
* @return 影响的行数
*/
int update(T entity);
/**
* 根据ID查询记录
* @param id 主键ID

40
src/dao/impl/LeaveRequestDAOImpl.java
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@ -87,46 +87,6 @@ public class LeaveRequestDAOImpl implements LeaveRequestDAO {
}
}
/**
* 更新请假申请信息
* 根据请假申请对象的ID更新其他字段的值
*
* @param request 包含更新信息的请假申请对象
* @return 影响的行数，更新成功返回1，失败返回0
*/
@Override
public int update(LeaveRequest request) {
if (request == null || request.getStudent() == null) {
return 0;
}
String sql = "UPDATE leave_requests SET student_id = ?, start_time = ?, " +
"end_time = ?, status = ?, duration = ?, location = ?, " +
"reason_type = ?, reason_detail = ?, is_leaving_city = ?, " +
"request_time = ? WHERE id = ?";
try (Connection conn = DatabaseUtil.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
// 设置预处理语句的参数
stmt.setInt(1, request.getStudent().getId());
stmt.setTimestamp(2, new Timestamp(request.getStartTime().getTime()));
stmt.setTimestamp(3, new Timestamp(request.getEndTime().getTime()));
stmt.setString(4, request.getStatus().name());
stmt.setDouble(5, request.getDuration());
stmt.setString(6, request.getLocation());
stmt.setString(7, request.getReasonType());
stmt.setString(8, request.getReasonDetail());
stmt.setBoolean(9, request.isLeavingCity());
stmt.setTimestamp(10, new Timestamp(request.getRequestTime().getTime()));
stmt.setInt(11, request.getId());
return stmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
return 0;
}
}
/**
* 根据ID查询请假申请信息
* 同时会关联查询学生信息

28
src/dao/impl/TeacherDAOImpl.java
View File

@ -73,34 +73,6 @@ public class TeacherDAOImpl implements TeacherDAO {
}
}
/**
* 更新教师信息
* 根据教师对象的ID更新其他字段的值
*
* @param teacher 包含更新信息的教师对象
* @return 影响的行数，更新成功返回1，失败返回0
*/
@Override
public int update(Teacher teacher) {
String sql = "UPDATE teachers SET teacher_id = ?, name = ?, department = ?, contact = ?, password = ? WHERE id = ?";
try (Connection conn = DatabaseUtil.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
// 设置预处理语句的参数
stmt.setString(1, teacher.getTeacherId());
stmt.setString(2, teacher.getName());
stmt.setString(3, teacher.getDepartment());
stmt.setString(4, teacher.getContact());
stmt.setString(5, teacher.getPassword());
stmt.setInt(6, teacher.getId());
return stmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
return 0;
}
}
/**
* 根据ID查询教师信息
*