Asp.Net MVC+BootStrap+EF6.0实现简单的用户角色权限管理2
首先我们来写个类进行获取当前线程内唯一的DbContext
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
/// <summary>
/// 当前线程内的数据上下文
/// </summary>
public class DbContextFactory {
/// <summary>
/// 获取当前线程内的数据上下文,如果当前线程内没有上下文,那么创建一个上下文,
/// </summary>
/// <returns>当前线程内的数据上下文</returns>
public static DbContext GetCurrentDbContext() {
DbContext currentContext = CallContext.GetData("CurrentDbContext") as DbContext;
if (currentContext == null) {
currentContext = new AuthorDesignContext();
CallContext.SetData("CurrentDbContext", currentContext);
}
return currentContext;
}
}
}
CallContext 这个类是用来获取当前线程内唯一的数据,可以避免一次性创建出多个数据库上下文。
接下来是对基础的仓储进行编写(DAL):BaseRepository类
对数据的增删改查操作
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class BaseRepository<T> where T : class,new() { public DbContext db = DbContextFactory.GetCurrentDbContext(); /// <summary>
/// 添加一条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public T AddEntity(T entity) {
db.Entry<T>(entity).State = EntityState.Added;
db.SaveChanges();
return entity;
}
/// <summary>
/// 修改一条记录
/// </summary>
/// <param name="entity"></param>
/// <param name="property">需要修改的字段名称</param>
/// <returns></returns>
public bool EditEntity(T entity, string[] property) {
DbEntityEntry<T> entry = db.Entry<T>(entity);
entry.State = EntityState.Unchanged;
foreach (var item in property) {
entry.Property(item).IsModified = true;
}
return db.SaveChanges() > ;
//return true;
}
/// <summary>
/// 删除一条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public bool DeleteEntity(T entity) {
DbEntityEntry<T> entry = db.Entry<T>(entity);
entry.State = EntityState.Deleted;
return db.SaveChanges() > ;
// return true;
}
/// <summary>
/// 查询列表
/// </summary>
/// <returns></returns>
public IQueryable<T> LoadEntities() {
return db.Set<T>();
}
/// <summary>
/// 查询
/// </summary>
/// <param name="whereLamda">查询条件</param>
/// <returns></returns>
public IQueryable<T> LoadEntities(Expression<Func<T, bool>> whereLamda) {
return db.Set<T>().Where<T>(whereLamda);
}
/// <summary>
/// 对查询结果进行升序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">查询结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
public IOrderedQueryable<T> Order<S>(IQueryable<T> queryable, Expression<Func<T, S>> orderLamda) {
return queryable.OrderBy(orderLamda);
}
/// <summary>
/// 对排序结果再次进行升序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
public IOrderedQueryable<T> ThenOrder<S>(IOrderedQueryable<T> queryable, Expression<Func<T, S>> orderLamda) {
return queryable.ThenBy(orderLamda);
}
/// <summary>
/// 对查询结果进行降序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">查询结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
public IOrderedQueryable<T> OrderDesc<S>(IQueryable<T> queryable, Expression<Func<T, S>> orderLamda) {
return queryable.OrderByDescending(orderLamda);
}
/// <summary>
/// 对排序结果再次进行降序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
public IOrderedQueryable<T> ThenOrderDesc<S>(IOrderedQueryable<T> queryable, Expression<Func<T, S>> orderLamda) {
return queryable.ThenByDescending(orderLamda);
}
/// <summary>
/// 对排序结果进行分页操作
/// </summary>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="nowNum">跳过序列中指定数量的元素</param>
/// <param name="pageSize">从序列的开头返回指定数量的连续元素</param>
/// <returns>指定长度的列表</returns>
public IQueryable<T> LoadPageEnties(IOrderedQueryable<T> queryable, int nowNum, int pageSize) {
return queryable.Skip<T>(nowNum + ).Take<T>(pageSize);
}
/// <summary>
/// 分页查询
/// </summary>
/// <typeparam name="S">排序类型</typeparam>
/// <param name="whereLamda">查询条件</param>
/// <param name="orderLamda">排序条件</param>
/// <param name="isDesc">是否倒序</param>
/// <param name="pageIndex">第几页</param>
/// <param name="pageSize">页长</param>
/// <param name="rowCount"></param>
/// <returns></returns>
public IQueryable<T> LoadEntities<S>(Expression<Func<T, bool>> whereLamda, Expression<Func<T, S>> orderLamda, bool isDesc, int pageIndex, int pageSize, out int rowCount) {
var temp = db.Set<T>().Where<T>(whereLamda);
rowCount = temp.Count();
if (isDesc)
temp = temp.OrderByDescending<T, S>(orderLamda).Skip<T>(pageSize * (pageIndex - ) + ).Take<T>(pageSize);
else
temp = temp.OrderBy<T, S>(orderLamda).Skip<T>(pageSize * (pageIndex - ) + ).Take<T>(pageSize);
return temp;
}
}
}
然后管理员类AdminRepository的DAL编写,继承BaseRepository类
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AdminRepository : BaseRepository<Admin>{
}
}
我要做的是面向接口的(虽然没有BLL这层)那么接下来就对IDAL着层来进行编写,
首先也是IBaseRepository接口
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL { public interface IBaseRepository<T> where T : class,new() {
/// <summary>
/// 添加一条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
T AddEntity(T entity);
/// <summary>
/// 修改一条记录
/// </summary>
/// <param name="entity"></param>
/// <param name="property">需要修改的字段名称</param>
/// <returns></returns>
bool EditEntity(T entity, string[] property);
/// <summary>
/// 删除一条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
bool DeleteEntity(T entity);
/// <summary>
/// 查询
/// </summary>
IQueryable<T> LoadEntities();
/// <summary>
/// 查询
/// </summary>
/// <param name="whereLamda">查询条件</param>
/// <returns></returns>
IQueryable<T> LoadEntities(Expression<Func<T, bool>> whereLamda);
/// <summary>
/// 对查询结果进行升序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">查询结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
IOrderedQueryable<T> Order<S>(IQueryable<T> queryable, Expression<Func<T, S>> orderLamda);
/// <summary>
/// 对排序结果再次进行升序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
IOrderedQueryable<T> ThenOrder<S>(IOrderedQueryable<T> queryable, Expression<Func<T, S>> orderLamda);
/// <summary>
/// 对查询结果进行降序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">查询结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
IOrderedQueryable<T> OrderDesc<S>(IQueryable<T> queryable, Expression<Func<T, S>> orderLamda);
/// <summary>
/// 对排序结果再次进行降序排序
/// </summary>
/// <typeparam name="S">排序字段类型</typeparam>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="orderLamda">排序表达式</param>
/// <returns>根据排序条件排序好之后的排序结果</returns>
IOrderedQueryable<T> ThenOrderDesc<S>(IOrderedQueryable<T> queryable, Expression<Func<T, S>> orderLamda);
/// <summary>
/// 对排序结果进行分页操作
/// </summary>
/// <param name="queryable">根据排序条件排序好之后的排序结果</param>
/// <param name="nowNum">跳过序列中指定数量的元素</param>
/// <param name="pageSize">从序列的开头返回指定数量的连续元素</param>
/// <returns>指定长度的列表</returns>
IQueryable<T> LoadPageEnties(IOrderedQueryable<T> queryable, int nowNum, int pageSize);
/// <summary>
/// 分页查询
/// </summary>
/// <typeparam name="S">排序类型</typeparam>
/// <param name="whereLamda">查询条件</param>
/// <param name="orderLamda">排序条件</param>
/// <param name="isDesc">是否倒序</param>
/// <param name="pageIndex">第几页</param>
/// <param name="pageSize">页长</param>
/// <param name="rowCount"></param>
/// <returns></returns>
IQueryable<T> LoadEntities<S>(Expression<Func<T, bool>> whereLamda, Expression<Func<T, S>> orderLamda, bool isDesc, int pageIndex, int pageSize, out int rowCount);
}
}
然后管理员接口IAdminRepository 继承IBaseRepository
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAdminRepository:IBaseRepository<Admin> {
}
}
接下来我们更改下原来的 管理员类AdminRepository的DAL编写,引用了IAdminRepository 的接口
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AdminRepository : BaseRepository<Admin>, IAdminRepository {
}
}
然后对其他Model也进行相同的编写。下面附上代码:
首先是IDAL,接口这里。
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IActionToPageRepository : IBaseRepository<ActionToPage> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAdminLoginLogRepository : IBaseRepository<AdminLoginLog> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAdminOperationRepository : IBaseRepository<AdminOperation> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAdminToPageRepository : IBaseRepository<AdminToPage> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAuthoryRepository : IBaseRepository<Authory> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IAuthoryToPageRepository : IBaseRepository<AuthoryToPage> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IPageActionRepository : IBaseRepository<PageAction> {
}
}
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
public interface IPageMenuRepository : IBaseRepository<PageMenu> {
}
}
其次是DAL。
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class ActionToPageRepository : BaseRepository<ActionToPage> ,IActionToPageRepository{
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AdminLoginLogRepository : BaseRepository<AdminLoginLog>, IAdminLoginLogRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AdminOperationRepository : BaseRepository<AdminOperation>, IAdminOperationRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AdminToPageRepository : BaseRepository<AdminToPage>, IAdminToPageRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AuthoryRepository : BaseRepository<Authory>, IAuthoryRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class AuthoryToPageRepository : BaseRepository<AuthoryToPage>, IAuthoryToPageRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class PageActionRepository : BaseRepository<PageAction>, IPageActionRepository {
}
}
using AuthorDesign.IDAL;
using AuthorDesign.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
public class PageMenuRepository : BaseRepository<PageMenu>,IPageMenuRepository{
}
}
然后就是写个专门用来对接WEB层与 DAL与IDAL的类。
RepositoryEnter 仓储入口,与web层的交互都交由这个类,附上代码
using AuthorDesign.IDAL;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.DAL {
/// <summary>
/// 仓储入口
/// </summary>
public class RepositoryEnter:IRepositoryEnter {
/// <summary>
/// 统一SaveChange方法
/// </summary>
/// <returns></returns>
public int SaveChange() {
return DbContextFactory.GetCurrentDbContext().SaveChanges(); }
/// <summary>
/// 获取页面与页面动作联系仓储
/// </summary>
public IDAL.IActionToPageRepository GetActionToPageRepository { get { return new ActionToPageRepository(); } }
/// <summary>
/// 获取管理员登录日志仓储
/// </summary>
public IDAL.IAdminLoginLogRepository GetAdminLoginLogRepository { get { return new AdminLoginLogRepository(); } }
/// <summary>
/// 获取管理员操作仓储
/// </summary>
public IDAL.IAdminOperationRepository GetAdminOperationRepository { get { return new AdminOperationRepository(); } }
/// <summary>
/// 获取管理员仓储
/// </summary>
public IDAL.IAdminRepository GetAdminRepository { get { return new AdminRepository(); } }
/// <summary>
/// 获取管理员与页面仓储
/// </summary>
public IDAL.IAdminToPageRepository GetAdminToPageRepository { get { return new AdminToPageRepository(); } }
/// <summary>
/// 获取角色仓储
/// </summary>
public IDAL.IAuthoryRepository GetAuthoryRepository { get { return new AuthoryRepository(); } }
/// <summary>
/// 获取角色与页面仓储
/// </summary>
public IDAL.IAuthoryToPageRepository GetAuthoryToPageRepository { get { return new AuthoryToPageRepository(); } }
/// <summary>
/// 获取页面动作仓储
/// </summary>
public IDAL.IPageActionRepository GetPageActionRepository { get { return new PageActionRepository(); } }
/// <summary>
/// 获取页面仓储
/// </summary>
public IDAL.IPageMenuRepository GetPageMenuRepository { get { return new PageMenuRepository(); } }
}
}
IRepositoryEnter接口
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace AuthorDesign.IDAL {
/// <summary>
/// 仓储入口
/// </summary>
public interface IRepositoryEnter {
/// <summary>
/// 统一SaveChange方法
/// </summary>
/// <returns></returns>
int SaveChange();
/// <summary>
/// 获取页面与页面动作联系仓储
/// </summary>
IDAL.IActionToPageRepository GetActionToPageRepository { get; }
/// <summary>
/// 获取管理员登录日志仓储
/// </summary>
IDAL.IAdminLoginLogRepository GetAdminLoginLogRepository { get; }
/// <summary>
/// 获取管理员操作仓储
/// </summary>
IDAL.IAdminOperationRepository GetAdminOperationRepository { get; }
/// <summary>
/// 获取管理员仓储
/// </summary>
IDAL.IAdminRepository GetAdminRepository { get; }
/// <summary>
/// 获取管理员与页面仓储
/// </summary>
IDAL.IAdminToPageRepository GetAdminToPageRepository { get; }
/// <summary>
/// 获取角色仓储
/// </summary>
IDAL.IAuthoryRepository GetAuthoryRepository { get; }
/// <summary>
/// 获取角色与页面仓储
/// </summary>
IDAL.IAuthoryToPageRepository GetAuthoryToPageRepository { get; }
/// <summary>
/// 获取页面动作仓储
/// </summary>
IDAL.IPageActionRepository GetPageActionRepository { get; }
/// <summary>
/// 获取页面仓储
/// </summary>
IDAL.IPageMenuRepository GetPageMenuRepository { get; }
}
}
对DAL于IDAL的一些编写就到这里,我感觉自己讲的很乱,好像没有什么主次之分。如果各位又不懂的或者感觉那里错了的,还请告诉我。
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