ef 仓储模式 Redis
接着写一下 上一章提到的
BaseRepositoryRedis.cs
先说说题外话：由于公司希望用到缓存来提高访问速度。那么我理所当然的想到redis。
这个无可厚非。可是当时我们的项目已经开发的差不多的了。。。。
我懒，也不可能到bll或者 dal去增加缓存代码。
于是我就想到了，既然我们的dal可以继承自BaseRepository.cs 那么一样也可以继承BaseRepositoryRedis.cs
只需要coder自己来选择是否需要缓存，需要的继承BaseRepositoryRedis，否则继承BaseRepository就好了！！！
说了这么多，那么放代码，
先创建一个RedisManager类（随便封装一下）
public class RedisManager<T> : BaseClass
{
RedisClient client = new RedisClient(RedisPath);
#region RedisHelper
/// <summary>
/// 获取
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public virtual T Get<T>(string key)
{
var q = client.Get<T>(key);
return q;
}
/// <summary>
/// 设置
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="expired"></param>
/// <returns></returns>
public virtual bool Set<T>(string key,T t,bool expired=true)
{
bool q=false;
if (expired)
{
q = client.Set(key, t,DateTime.Now.AddDays(ExpiredTime));
}
else
{
q = client.Set(key, t);
}
return q;
}
/// <summary>
/// 清空缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
public virtual bool Remove(string key)
{
return client.Remove(key);
}
/// <summary>
/// 清空所有缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
public virtual void FlushAll()
{
client.FlushAll();
}
/// <summary>
/// 获取所有key
/// </summary>
public virtual List<string> GetAllKeys()
{
var q = client.GetAllKeys();
return q;
}
/// <summary>
/// 获取所有键值对
/// </summary>
/// <param name="keys"></param>
/// <returns></returns>
public virtual IDictionary<string, T> GetAll(List<string> keys)
{
IDictionary<string, T> dict = client.GetAll<T>(keys);
return dict;
}
#endregion
}然后创建接口
IDAL
namespace IDAL
{
public interface IBaseRepositoryRedis<T>
{
/// <summary>
/// 添加
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>添加后的数据实体</returns>
T Add(T entity, bool hasRedis = true);
/// <summary>
/// 添加
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>添加后的数据实体</returns>
bool AddOK(T entity, bool hasRedis = true);
/// <summary>
/// 查询记录数
/// </summary>
/// <param name="predicate">条件表达式</param>
/// <returns>记录数</returns>
int Count(Expression<Func<T, bool>> predicate, bool hasRedis = true);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
T Update(T entity, bool hasRedis = true);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
bool UpdateOK(T entity, bool hasRedis = true);
/// <summary>
/// 删除
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
bool Delete(T entity, bool hasRedis = true);
/// <summary>
/// 是否存在
/// </summary>
/// <param name="anyLambda">查询表达式</param>
/// <returns>布尔值</returns>
bool Exist(Expression<Func<T, bool>> anyLambda, bool hasRedis = true);
/// <summary>
/// 查询数据
/// </summary>
/// <param name="whereLambda">查询表达式</param>
/// <returns>实体</returns>
T Find(Expression<Func<T, bool>> whereLambda, bool hasRedis = true);
/// <summary>
/// 查找数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="whereLamdba">查询表达式</param>
/// <returns></returns>
List<T> FindList(Expression<Func<T, bool>> whereLamdba, bool hasRedis = true);
/// <summary>
/// 查找数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="whereLamdba">查询表达式</param>
/// <param name="isAsc">是否升序</param>
/// <param name="orderLamdba">排序表达式</param>
/// <returns></returns>
List<T> FindList<S>(Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true);
/// <summary>
/// 查找分页数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="pageIndex">当前页</param>
/// <param name="pageSize">每页记录数</param>
/// <param name="totalRecord">总记录数</param>
/// <param name="whereLamdba">查询表达式</param>
/// <param name="isAsc">是否升序</param>
/// <param name="orderLamdba">排序表达式</param>
/// <returns></returns>
List<T> FindPageList<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true);
List<T> FindListBySQL<T>(string sql, params object[] parameters);
int ExecuteBySQL(string sql, params object[] parameters);
}
}IBLL
namespace IBLL
{
public interface IBaseRepositoryRedisBLL<T> where T : class
{
/// <summary>
/// 添加
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>添加后的数据实体</returns>
T Add(T entity, bool hasRedis = true);
/// <summary>
/// 添加
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>添加后的数据实体</returns>
bool AddOK(T entity, bool hasRedis = true);
/// <summary>
/// 查询记录数
/// </summary>
/// <param name="predicate">条件表达式</param>
/// <returns>记录数</returns>
int Count(Expression<Func<T, bool>> predicate, bool hasRedis = true);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
T Update(T entity, bool hasRedis = true);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
bool UpdateOK(T entity, bool hasRedis = true);
/// <summary>
/// 删除
/// </summary>
/// <param name="entity">数据实体</param>
/// <returns>是否成功</returns>
bool Delete(T entity, bool hasRedis = true);
/// <summary>
/// 是否存在
/// </summary>
/// <param name="anyLambda">查询表达式</param>
/// <returns>布尔值</returns>
bool Exist(Expression<Func<T, bool>> anyLambda, bool hasRedis = true);
/// <summary>
/// 查询数据
/// </summary>
/// <param name="whereLambda">查询表达式</param>
/// <returns>实体</returns>
T Find(Expression<Func<T, bool>> whereLambda, bool hasRedis = true);
/// <summary>
/// 查找数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="whereLamdba">查询表达式</param>
/// <returns></returns>
List<T> FindList(Expression<Func<T, bool>> whereLamdba, bool hasRedis = true);
/// <summary>
/// 查找数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="whereLamdba">查询表达式</param>
/// <param name="isAsc">是否升序</param>
/// <param name="orderLamdba">排序表达式</param>
/// <returns></returns>
List<T> FindList<S>(Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true);
/// <summary>
/// 查找分页数据列表
/// </summary>
/// <typeparam name="S">排序</typeparam>
/// <param name="pageIndex">当前页</param>
/// <param name="pageSize">每页记录数</param>
/// <param name="totalRecord">总记录数</param>
/// <param name="whereLamdba">查询表达式</param>
/// <param name="isAsc">是否升序</param>
/// <param name="orderLamdba">排序表达式</param>
/// <returns></returns>
List<T> FindPageList<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true);
List<T> FindListBySQL<T>(string sql, params object[] parameters);
int ExecuteBySQL(string sql, params object[] parameters);
}
}DAL
这里，我们创建 BaseRepositoryRedis
namespace DAL.Base
{
public class BaseRepositoryRedis<T> : BaseClass, IBaseRepositoryRedis<T> where T : class
{
public ELDBEntity dbEF = DbContextFactory.GetCurrentContext();
RedisBLL<T> redis = new RedisBLL<T>();
public virtual T Add(T entity,bool hasRedis=true)
{
dbEF.Entry<T>(entity).State = EntityState.Added;
dbEF.SaveChanges();
if (hasRedis)
{
var q = SaveRedis();
}
return entity;
}
public virtual bool AddOK(T entity, bool hasRedis = true)
{
dbEF.Entry<T>(entity).State = EntityState.Added;
int count = dbEF.SaveChanges();
if (hasRedis)
{
var q = SaveRedis();
}
return count > 0;
}
public virtual int Count(Expression<Func<T, bool>> predicate, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
return q.Count(predicate.Compile());
}
return dbEF.Set<T>().AsNoTracking().Count(predicate);
}
public virtual T Update(T entity, bool hasRedis = true)
{
dbEF.Set<T>().Attach(entity);
dbEF.Entry<T>(entity).State = EntityState.Modified;
dbEF.SaveChanges();
if (hasRedis)
{
var q = SaveRedis();
}
return entity;
}
public virtual bool UpdateOK(T entity, bool hasRedis = true)
{
dbEF.Set<T>().Attach(entity);
dbEF.Entry<T>(entity).State = EntityState.Modified;
int count = dbEF.SaveChanges();
if (hasRedis)
{
var q = SaveRedis();
}
return count>0;
}
public virtual bool Delete(T entity, bool hasRedis = true)
{
dbEF.Set<T>().Attach(entity);
dbEF.Entry<T>(entity).State = EntityState.Deleted;
int count = dbEF.SaveChanges();
if (hasRedis)
{
var q = SaveRedis();
}
return count > 0;
}
public virtual bool Exist(Expression<Func<T, bool>> anyLambda, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
return q.Exists(anyLambda.Compile().ToPredicate());
}
return dbEF.Set<T>().AsNoTracking().Any(anyLambda);
}
public virtual T Find(Expression<Func<T, bool>> whereLambda, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
return q.Find(whereLambda.Compile().ToPredicate());
}
T _entity = dbEF.Set<T>().AsNoTracking().FirstOrDefault<T>(whereLambda);
return _entity;
}
public virtual List<T> FindList(Expression<Func<T, bool>> whereLamdba, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
}
else
{
q = dbEF.Set<T>().AsNoTracking().Where<T>(whereLamdba).ToList();
}
return q.FindAll(whereLamdba.Compile().ToPredicate());;
}
public virtual List<T> FindList<S>(Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
q = q.FindAll(whereLamdba.Compile().ToPredicate());
}
else
{
q=dbEF.Set<T>().AsNoTracking().Where<T>(whereLamdba).ToList();
}
if (isAsc) q = q.OrderBy<T, S>(orderLamdba.Compile()).ToList();
else q = q.OrderByDescending<T, S>(orderLamdba.Compile()).ToList();
return q;
}
public virtual List<T> FindPageList<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
q = q.FindAll(whereLamdba.Compile().ToPredicate());
}
else
{
q = dbEF.Set<T>().AsNoTracking().Where<T>(whereLamdba).ToList();
}
totalRecord = q.Count();
if (isAsc) q = q.OrderBy<T, S>(orderLamdba.Compile()).Skip<T>((pageIndex - 1) * pageSize).Take<T>(pageSize).ToList();
else q = q.OrderByDescending<T, S>(orderLamdba.Compile()).Skip<T>((pageIndex - 1) * pageSize).Take<T>(pageSize).ToList();
return q;
}
public virtual PagedList<T> FindPageList1<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
List<T> q = new List<T>();
if (hasRedis)
{
var s = redis.Get<string>(typeof(T).ToString());
if (string.IsNullOrEmpty(s))
{
q = SaveRedis();
}
else
{
q = JsonConvert.DeserializeObject<List<T>>(s);
}
q = q.FindAll(whereLamdba.Compile().ToPredicate());
}
else
{
q = dbEF.Set<T>().AsNoTracking().Where<T>(whereLamdba).ToList();
}
totalRecord = q.Count();
PagedList<T> resultList = null;
if (isAsc) resultList = q.OrderBy<T, S>(orderLamdba.Compile()).ToPagedList(pageIndex, pageSize);
else resultList = q.OrderByDescending<T, S>(orderLamdba.Compile()).ToPagedList(pageIndex, pageSize);
return resultList;
}
public virtual List<T> FindListBySQL<T>(string sql, params object[] parameters)
{
var list = dbEF.Database.SqlQuery<T>(sql, parameters).ToList();
return list;
}
public virtual int ExecuteBySQL(string sql, params object[] parameters)
{
var q = dbEF.Database.ExecuteSqlCommand(sql, parameters);
return q;
}
private List<T> SaveRedis()
{
List<T> q = dbEF.Set<T>().AsNoTracking().ToList();
var json = JsonConvert.SerializeObject(q);
redis.Set<string>(typeof(T).Name, json);
return q;
}
}
}PS：说一下，为何要用json存储？ 其实我也很无奈（Redis
无法保存ef复杂对象），看链接：http://blog.csdn.net/hanjun0612/article/details/54409892
BLL
namespace BLL.Base
{
public class BaseRepositoryRedisBLL<T> : BaseClass, IBaseRepositoryRedisBLL<T> where T : class
{
BaseRepositoryRedis<T> obj = new BaseRepositoryRedis<T>();
public virtual T Add(T entity, bool hasRedis = true)
{
return obj.Add(entity);
}
public virtual bool AddOK(T entity, bool hasRedis = true)
{
return obj.AddOK(entity);
}
public virtual int Count(System.Linq.Expressions.Expression<Func<T, bool>> predicate, bool hasRedis = true)
{
return obj.Count(predicate);
}
public virtual T Update(T entity, bool hasRedis = true)
{
return obj.Update(entity);
}
public virtual bool UpdateOK(T entity, bool hasRedis = true)
{
return obj.UpdateOK(entity);
}
public virtual bool Delete(T entity, bool hasRedis = true)
{
return obj.Delete(entity);
}
public virtual bool Exist(System.Linq.Expressions.Expression<Func<T, bool>> anyLambda, bool hasRedis = true)
{
return obj.Exist(anyLambda);
}
public virtual T Find(Expression<Func<T, bool>> whereLambda, bool hasRedis = true)
{
return obj.Find(whereLambda);
}
public virtual List<T> FindList(Expression<Func<T, bool>> whereLamdba, bool hasRedis = true)
{
var _list = obj.FindList(whereLamdba);
return _list;
}
public virtual List<T> FindList<S>(Expression<Func<T, bool>> whereLamdba, bool isAsc, System.Linq.Expressions.Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
return obj.FindList<S>(whereLamdba, isAsc, orderLamdba);
}
public virtual List<T> FindPageList<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
return obj.FindPageList<S>(pageIndex, pageSize, out totalRecord, whereLamdba, isAsc, orderLamdba);
}
public virtual PagedList<T> FindPageList1<S>(int pageIndex, int pageSize, out int totalRecord, Expression<Func<T, bool>> whereLamdba, bool isAsc, Expression<Func<T, S>> orderLamdba, bool hasRedis = true)
{
return obj.FindPageList1<S>(pageIndex, pageSize, out totalRecord, whereLamdba, isAsc, orderLamdba);
}
public virtual List<T> FindListBySQL<T>(string sql, params object[] parameters)
{
return obj.FindListBySQL<T>(sql, parameters);
}
public virtual int ExecuteBySQL(string sql, params object[] parameters)
{
return obj.ExecuteBySQL(sql, parameters);
}
}
}最后，看一下用法
DAL
public class TestDAL : BaseRepositoryRedis<SYS_User>
{
//创建自定义方法
public string HelloWorld(string name)
{
return name + " Hello";
}
}BLL
namespace BLL.Test
{
//继承BaseRepositoryBLL，拥有常用方法
public class TestBLL : BaseRepositoryRedisBLL<SYS_User>
{
}
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