C# 基础项目——课程管理系统DEMO（三）之BLL

 

C# 基础项目——课程管理系统DEMO（三）

一：BLL层

1.BLL层基本构成

 

BLL

CourseManager

   
 1 namespace CourseManageBLL
 2 {
 3     public class CourseManager
 4     {
 5         private CourseService courseService = new CourseService();
 6 
 7         #region 添加课程
 8         public int AddCourse(Course course)
 9         {
10             return courseService.AddCourse(course);
11         }
12         #endregion
13 
14         #region 查询课程
15         /// <summary>
16         /// 根据多个查询条件动态组合查询
17         /// </summary>
18         /// <param name="categoryId">课程分类编号</param>
19         /// <param name="courseName">课程名称</param>
20         /// <returns></returns>
21         public List<Course> QueryCourse(int categoryId, string courseName)
22         {
23             return courseService.QueryCourse(categoryId, courseName);
24         }
25         #endregion
26 
27         #region 修改课程
28         public int ModifyCourse(Course course)
29         {
30             return courseService.ModifyCourse(course);
31         }
32         #endregion
33 
34         #region 删除课程
35         public int DeleteCourse(Course course)
36         {
37             return courseService.DeleteCourse(course);
38         }
39         #endregion
40     }
41 }
CourseManager

 

TeacherManager

   
 1 namespace CourseManageBLL
 2 {
 3     public class TeacherManager
 4     {
 5         private TeacherService teacherService = new TeacherService();
 6 
 7         public Teacher TeacherLogin(Teacher teacher)
 8         {
 9             teacher = teacherService.TeacherLogin(teacher);
10             return teacher;
11         }
12     }
13 }
TeacherManager

 

CourseCategoryManager

   
 1 namespace CourseManageBLL
 2 {
 3     public class CourseCategoryManager
 4     {
 5         private CourseCategoryService categoryService = new CourseCategoryService();
 6         public List<CourseCategory> GetCourseCategories()
 7         {
 8             return categoryService.GetCourseCategories();
 9         }
10     }
11 }
CourseCategoryManager

 



END

posted @ 2022-03-16 14:04  云谷の风  阅读(140)  评论(0)  编辑  收藏  举报