SqlSugar简单工模式数据访问简单Demo

源代码地址:http://git.oschina.net/tiama3798/BootstrapBack_Demo/tree/SqlSugar/

1.Model层

SqlSugar简单工模式数据访问简单Demo

2.抽象层实例:

基础接口

    /// <summary>
/// 基础接口
/// </summary>
public interface IBaseAbstract<T> where T : class
{
#region 基础访问
/// <summary>
/// 获取表达式树
/// </summary>
/// <returns></returns>
Queryable<T> GetQueryable();
/// <summary>
/// 获取对象
/// </summary>
/// <param name="ID">主键ID</param>
/// <returns></returns>
T GetModel(object ID);
/// <summary>
/// 添加对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
object Add(T model);
/// <summary>
/// 修改对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
bool Update(T model);
/// <summary>
/// 删除对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
bool Delete(T model);
/// <summary>
/// 删除对象---主键删除的公共方法,只支持int类型
/// </summary>
/// <param name="ID">主键ID</param>
/// <returns></returns>
bool Delete(int ID);
#endregion
}
    /// <summary>
/// 学生接口定义
/// </summary>
public interface IStudent : IBaseAbstract<student>
{
#region 获取分页
/// <summary>
/// 获取分页数据
/// </summary>
/// <param name="info">分页信息</param>
/// <returns></returns>
List<student> GetPage(PageInfo info,string search); #endregion #region 获取数量
/// <summary>
/// 获取总数
/// </summary>
/// <returns></returns>
int GetCount();
#endregion
}

3.实现成

基础类:

    internal class BaseOperate<T> where T : class, new()
{
protected SqlSugarClient db = null;
public BaseOperate()
{
db = SugarContext.GetInstance();
} #region 基础访问
/// <summary>
/// 获取表达式树
/// </summary>
/// <returns></returns>
public Queryable<T> GetQueryable()
{
return db.Queryable<T>();
}
/// <summary>
/// 获取对象
/// </summary>
/// <param name="ID">主键ID</param>
/// <returns></returns>
public T GetModel(object ID)
{
return GetQueryable().InSingle<T>(ID);
}
/// <summary>
/// 添加对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
public object Add(T model)
{
try
{
return db.Insert<T>(model);
}
catch (Exception ex)
{
throw new Exception("添加对象失败,当前类型:"+(typeof(T).Name)+ex.Message,ex);
}
}
/// <summary>
/// 修改对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
public bool Update(T model)
{
try
{
return db.Update<T>(model);
}
catch (Exception ex)
{
throw new Exception("修改对象失败,当前类型:" + (typeof(T).Name), ex);
}
}
/// <summary>
/// 删除对象
/// </summary>
/// <param name="model">对象</param>
/// <returns></returns>
public bool Delete(T model)
{
try
{
return db.Delete<T>(model);
}
catch (Exception ex)
{
throw new Exception("删除对象失败,当前类型:" + (typeof(T).Name), ex);
}
}
/// <summary>
/// 删除对象,默认只支持int类型
/// </summary>
/// <param name="ID">主键ID</param>
/// <returns></returns>
public bool Delete(int ID)
{
try
{
return db.Delete<T, int>(ID);
}
catch (Exception ex)
{
throw new Exception("删除对象失败,当前类型:" + (typeof(T).Name), ex);
}
}
#endregion
}

实现类:

    /// <summary>
/// 学生数据访问操作
/// </summary>
internal class StudentOperate : BaseOperate<student>, IStudent
{
#region 获取分页
/// <summary>
/// 获取分页数据
/// </summary>
/// <param name="info">分页信息</param>
/// <returns></returns>
public List<student> GetPage(PageInfo info, string search)
{
//排序
var query = GetQueryable();
if (string.IsNullOrEmpty(search) == false)
{
query = query.Where(q => q.sno.Contains(search) || q.sname.Contains(search));
}
query = query.OrderBy(q => q.sbirthday);
info.RecordCount = query.Count();
//分页
return query.ToPageList(info.PageIndex, info.PageSize);
}
#endregion #region 获取数量
/// <summary>
/// 获取总数
/// </summary>
/// <returns></returns>
public int GetCount()
{
return GetQueryable().Count();
}
#endregion
}

4.工厂类:

    /// <summary>
/// 获取数据操作接口
/// </summary>
public class SugarFactory
{
public static IStudent GetStudent()
{
return new StudentOperate();
} }

更多参考:

SqlSugar-事务操作

SqlSugar常用增删改操作

SqlSugar常用查询实例-拉姆达表达式

SqlSugar框架T4模板的使用

.Net开源SqlServer ORM框架SqlSugar整理

上一篇:Linux下数据库备份


下一篇:RABC权限控制(页面操作角色,权限和进行分配)