框架结构
实体层：
Typecho.Enties
仓储层：
Typecho.IRepository
IconcardContext.cs
IRepositoryFactory.cs
IRepositorys.cs
Typecho.Repository
RepositoryFactory.cs
Repositorys.cs
typechoContext.cs
业务层：
Typecho.IService
IBaseService.cs
ITypechoTestService.cs
Typecho.Service
BaseService.cs
TypechoService.cs
UI层（api）：
TypechoCore1
TestController.cs
一： EF从数据库生成实体类到Enties
1.执行以下语句安装依赖包
Install-Package MySql.Data.EntityFrameworkCore -Pre
Install-Package Pomelo.EntityFrameworkCore.MySql
Install-Package Microsoft.EntityFrameworkCore.Tools
Install-Package Microsoft.VisualStudio.Web.CodeGeneration.Design
2.在程序包包管理器控制台
Scaffold-DbContext "server=localhost;userid=root;pwd=1;port=3306;database=syerp;sslmode=none;" Pomelo.EntityFrameworkCore.MySql -OutputDir Models -Force
自动生成所有类模型文件，typechoContext.cs数据库上下文自动创建好了
-OutputDir 实体文件所存放的文件目录
-ContextDir DbContext文件存放的目录
-Context DbContext文件名
-Schemas 需要生成实体数据的数据表所在的模式
-Tables 需要生成实体数据的数据表的集合
-DataAnnotations
-UseDatabaseNames 直接使用数据库中的表名和列名（某些版本不支持）
-Force 强制执行，重写已经存在的实体文件
链接： asp.net core3.1 实战开发（EF+Mysql 从数据库生成实体类到项目）
二：封装数据访问层
封装仓储Repositorys模式，把typechoContext.cs这个类复制到Typecho.Repository程序集中
typechoContext类：
using Microsoft.EntityFrameworkCore;
using Typecho.Enties.Models;
using Typecho.IRepository;
namespace Typecho.Repository
{
public partial class typechoContext : DbContext , IconcardContext
{
public typechoContext(DbContextOptions options)
: base(options)
{
}
public virtual DbSet typecho_comments { get; set; }
public virtual DbSet typecho_contents { get; set; }
public virtual DbSet typecho_fields { get; set; }
public virtual DbSet typecho_links { get; set; }
public virtual DbSet typecho_metas { get; set; }
public virtual DbSet typecho_options { get; set; }
public virtual DbSet typecho_relationships { get; set; }
public virtual DbSet typecho_users { get; set; }
public virtual DbSet typecho_test { get; set; }
// protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
// {
// if (!optionsBuilder.IsConfigured)
// {
//#warning To protect potentially sensitive information in your connection string, you should move it out of source code. See http://go.microsoft.com/fwlink/?LinkId=723263 for guidance on storing connection strings.
// optionsBuilder.UseMySql("server=localhost;userid=root;pwd=woshishui;port=3306;database=typecho;sslmode=none", x => x.ServerVersion("8.0.16-mysql"));
// }
// }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity(entity =>
{
entity.HasKey(e => e.coid)
.HasName("PRIMARY");
entity.HasIndex(e => e.cid)
.HasName("cid");
entity.HasIndex(e => e.created)
.HasName("created");
entity.Property(e => e.coid).HasColumnType("int(10) unsigned");
entity.Property(e => e.agent)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.author)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.authorId)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.cid)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.created)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.ip)
.HasColumnType("varchar(64)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.mail)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.ownerId)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.parent)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.stars)
.HasColumnType("int(10)")
.HasDefaultValueSql("'0'");
entity.Property(e => e.status)
.HasColumnType("varchar(16)")
.HasDefaultValueSql("'approved'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.text)
.HasColumnType("text")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.type)
.HasColumnType("varchar(16)")
.HasDefaultValueSql("'comment'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.url)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => e.cid)
.HasName("PRIMARY");
entity.HasIndex(e => e.created)
.HasName("created");
entity.HasIndex(e => e.slug)
.HasName("slug")
.IsUnique();
entity.Property(e => e.cid).HasColumnType("int(10) unsigned");
entity.Property(e => e.allowComment)
.HasColumnType("char(1)")
.HasDefaultValueSql("'0'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.allowFeed)
.HasColumnType("char(1)")
.HasDefaultValueSql("'0'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.allowPing)
.HasColumnType("char(1)")
.HasDefaultValueSql("'0'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.authorId)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.commentsNum)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.created)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.modified)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.order)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.parent)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.password)
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.slug)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.status)
.HasColumnType("varchar(16)")
.HasDefaultValueSql("'publish'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.template)
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.text)
.HasColumnType("longtext")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.title)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.type)
.HasColumnType("varchar(16)")
.HasDefaultValueSql("'post'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.views)
.HasColumnType("int(10)")
.HasDefaultValueSql("'0'");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => new { e.cid, e.name })
.HasName("PRIMARY");
entity.HasIndex(e => e.float_value)
.HasName("float_value");
entity.HasIndex(e => e.int_value)
.HasName("int_value");
entity.Property(e => e.cid).HasColumnType("int(10) unsigned");
entity.Property(e => e.name)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.float_value).HasDefaultValueSql("'0'");
entity.Property(e => e.int_value)
.HasColumnType("int(10)")
.HasDefaultValueSql("'0'");
entity.Property(e => e.str_value)
.HasColumnType("text")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.type)
.HasColumnType("varchar(8)")
.HasDefaultValueSql("'str'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => e.lid)
.HasName("PRIMARY");
entity.Property(e => e.lid)
.HasColumnType("int(10) unsigned")
.HasComment("links表主键");
entity.Property(e => e.description)
.HasColumnType("varchar(200)")
.HasComment("links描述")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.image)
.HasColumnType("varchar(200)")
.HasComment("links图片")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.name)
.HasColumnType("varchar(200)")
.HasComment("links名称")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.order)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'")
.HasComment("links排序");
entity.Property(e => e.sort)
.HasColumnType("varchar(200)")
.HasComment("links分类")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.url)
.HasColumnType("varchar(200)")
.HasComment("links网址")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.user)
.HasColumnType("varchar(200)")
.HasComment("自定义")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => e.mid)
.HasName("PRIMARY");
entity.HasIndex(e => e.slug)
.HasName("slug");
entity.Property(e => e.mid).HasColumnType("int(10) unsigned");
entity.Property(e => e.count)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.description)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.name)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.order)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.parent)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.slug)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.type)
.IsRequired()
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => new { e.name, e.user })
.HasName("PRIMARY");
entity.Property(e => e.name)
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.user).HasColumnType("int(10) unsigned");
entity.Property(e => e.value)
.HasColumnType("text")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => new { e.cid, e.mid })
.HasName("PRIMARY");
entity.Property(e => e.cid).HasColumnType("int(10) unsigned");
entity.Property(e => e.mid).HasColumnType("int(10) unsigned");
});
modelBuilder.Entity(entity =>
{
entity.HasKey(e => e.uid)
.HasName("PRIMARY");
entity.HasIndex(e => e.mail)
.HasName("mail")
.IsUnique();
entity.HasIndex(e => e.name)
.HasName("name")
.IsUnique();
entity.Property(e => e.uid).HasColumnType("int(10) unsigned");
entity.Property(e => e.activated)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.authCode)
.HasColumnType("varchar(64)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.created)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.group)
.HasColumnType("varchar(16)")
.HasDefaultValueSql("'visitor'")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.logged)
.HasColumnType("int(10) unsigned")
.HasDefaultValueSql("'0'");
entity.Property(e => e.mail)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.name)
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.password)
.HasColumnType("varchar(64)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.screenName)
.HasColumnType("varchar(32)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
entity.Property(e => e.url)
.HasColumnType("varchar(200)")
.HasCharSet("utf8")
.HasCollation("utf8_general_ci");
});
OnModelCreatingPartial(modelBuilder);
}
partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
}
}
IRepositorys接口：
public interface IRepositorys : IDisposable where T : class
{
///
/// 显式开启数据上下文事务
///
/// 指定连接的事务锁定行为
void BeginTransaction(IsolationLevel isolationLevel = IsolationLevel.Unspecified);
///
/// 提交事务的更改
///
void Commit();
///
/// 显式回滚事务，仅在显式开启事务后有用
///
void Rollback();
///
/// 提交当前单元操作的更改
///
int SaveChanges();
Task SaveChangesAsync();
///
/// 获取 当前实体类型的查询数据集，数据将使用不跟踪变化的方式来查询，当数据用于展现时，推荐使用此数据集，如果用于新增，更新，删除时，请使用
IQueryable Entities { get; }
///
/// 获取 当前实体类型的查询数据集，当数据用于新增，更新，删除时，使用此数据集，如果数据用于展现，推荐使用
IQueryable TrackEntities { get; }
///
/// 插入 - 通过实体对象添加
///
/// 实体对象
/// 是否执行
/// /// AysAdd(T entity, bool isSave = true);
///
/// 批量插入 - 通过实体对象集合添加
///
/// 实体对象集合
/// 是否执行
void AddRange(IEnumerable entitys, bool isSave = true);
///
/// 删除 - 通过实体对象删除
///
/// 实体对象
/// 是否执行
void Delete(T entity, bool isSave = true);
///
/// 批量删除 - 通过实体对象集合删除
///
/// 实体对象集合
/// 是否执行
void Delete(bool isSave = false, params T[] entitys);
///
/// 删除 - 通过主键ID删除
///
/// 主键ID
Task AsyDelete(object id);
int Delete(object id);
///
/// 批量删除 - 通过条件删除
///
/// 过滤条件
/// 是否执行
void Delete(Expression> @where, bool isSave = true);
///
/// 修改 - 通过实体对象修改
///
/// 实体对象
Task AysUpdate(T entity);
int Update(T entity);
///
/// 批量修改 - 通过实体对象集合修改
///
/// 实体对象集合
void Update( params T[] entitys);
///
/// 是否满足条件
///
/// 过滤条件
/// > @where);
///
/// 返回总条数
///
///
/// 返回总条数 - 通过条件过滤
///
/// 过滤条件
/// > @where);
///
/// 返回第一条记录
///
/// 过滤条件
/// > @where);
///
/// 返回第一条记录 - 通过条件过滤
///
/// 排序约束
/// 过滤条件
/// 排序条件
/// 排序方式
/// (Expression> @where, Expression> order, bool isDesc = false);
///
/// 去重查询
///
/// 过滤条件
/// Distinct(Expression> @where);
///
/// 条件查询
///
/// 过滤条件
/// Where(Expression> @where);
///
/// 条件查询 - 支持排序
///
/// 排序约束
/// 过滤条件
/// 排序条件
/// 排序方式
/// Where(Expression> @where, Expression> order, bool isDesc = false);
///
/// 条件分页查询 - 支持排序
///
/// 排序约束
/// 过滤条件
/// 排序条件
/// 当前页码
/// 每页记录条数
/// 返回总条数
/// 是否倒序
/// Where(Func @where, Func order, int pageIndex, int pageSize, out int count, bool isDesc = false);
///
/// 条件分页查询 - 支持排序 - 支持Select导航属性查询
///
/// 排序约束
/// 过滤条件
/// 排序条件
/// 当前页码
/// 每页记录条数
/// 返回总条数
/// 是否倒序
/// Where(Expression> @where, Expression> order, int pageIndex, int pageSize, out int count, bool isDesc = false);
///
/// 获取所有数据
///
/// GetAll();
///
/// 获取所有数据 - 支持排序
///
/// 排序约束
/// 排序条件
/// 排序方式
/// GetAll(Expression> order, bool isDesc = false);
///
/// 根据ID查询
///
/// 字段类型
/// 主键ID
/// (TType id);
///
/// 获取最大值
///
/// 字段类型
/// 字段条件
/// (Expression> column);
///
/// 获取最大值
///
/// 字段类型
/// 字段条件
/// 过滤条件
/// (Expression> column, Expression> @where);
///
/// 获取最小值
///
/// 字段类型
/// 字段条件
/// (Expression> column);
///
/// 获取最小值
///
/// 字段类型
/// 字段条件
/// 过滤条件
/// (Expression> column, Expression> @where);
///
/// 获取总数
///
/// 字段类型
/// 字段条件
/// 过滤条件
/// (Expression> selector, Expression> @where) where TType : new();
}
Repositorys类，CRUD功能的封装
public class Repositorys : IRepositorys where T : class
{
private typechoContext _dbContext;
private readonly DbSet _dbSet;
private readonly string _connStr;
public Repositorys(IconcardContext mydbcontext)
{
_dbContext = mydbcontext as typechoContext;
if (_dbContext == null)
{
return;
}
_dbSet = _dbContext.Set();
_connStr = _dbContext.Database.GetDbConnection().ConnectionString;
}
public void BeginTransaction(IsolationLevel isolationLevel = IsolationLevel.Unspecified)
{
if (_dbContext.Database.CurrentTransaction == null)
{
_dbContext.Database.BeginTransaction(isolationLevel);
}
}
public void Commit()
{
var transaction = this._dbContext.Database.CurrentTransaction;
if (transaction != null)
{
try
{
transaction.Commit();
}
catch (Exception)
{
transaction.Rollback();
throw;
}
}
}
public void Rollback()
{
if (_dbContext.Database.CurrentTransaction != null)
{
_dbContext.Database.CurrentTransaction.Rollback();
}
}
public int SaveChanges()
{
return _dbContext.SaveChanges();
}
public async Task SaveChangesAsync()
{
return await _dbContext.SaveChangesAsync();
}
public IQueryable Entities
{
get { return _dbSet.AsNoTracking(); }
}
public IQueryable TrackEntities
{
get { return _dbSet; }
}
public T Add(T entity, bool isSave = true)
{
_dbSet.Add(entity);
if (isSave)
{
SaveChanges();
}
return entity;
}
public async Task AysAdd(T entity, bool isSave = true)
{
await _dbSet.AddAsync(entity);
if (isSave)
{
await SaveChangesAsync();
}
return entity;
}
public void AddRange(IEnumerable entitys, bool isSave = true)
{
_dbSet.AddRange(entitys);
if (isSave)
{
SaveChanges();
}
}
public void Delete(T entity, bool isSave = true)
{
this._dbSet.Remove(entity);
if (isSave)
{
this.SaveChanges();
}
}
public void Delete(bool isSave = true, params T[] entitys)
{
this._dbSet.RemoveRange(entitys);
if (isSave)
{
this.SaveChanges();
}
}
public async Task AsyDelete(object id)
{
int de = 0;
//执行查询
var todoItem = await _dbSet.FindAsync(id);
if (todoItem == null)
{
//return NotFound();
de = 0;
}
else
{
_dbSet.Remove(todoItem);
de = SaveChanges();
}
return de;
}
public int Delete(object id)
{
int de = 0;
//执行查询
var todoItem =_dbSet.Find(id);
if (todoItem == null)
{
//return NotFound();
de = 0;
}
else
{
_dbSet.Remove(todoItem);
de = SaveChanges();
}
return de;
}
public void Delete(Expression> @where, bool isSave = true)
{
T[] entitys = this._dbSet.Where(@where).ToArray();
if (entitys.Length > 0)
{
this._dbSet.RemoveRange(entitys);
}
if (isSave)
{
this.SaveChanges();
}
}
public async Task AysUpdate(T entity)
{
var entry = this._dbContext.Entry(entity);
if (entry.State == EntityState.Detached)
{
entry.State = EntityState.Modified;
}
var da = await Task.Run(SaveChangesAsync);
return da;
}
public int Update(T entity)
{
var entry = this._dbContext.Entry(entity);
if (entry.State == EntityState.Detached)
{
entry.State = EntityState.Modified;
}
var da = SaveChanges();
return da;
}
public void Update( params T[] entitys)
{
var entry = this._dbContext.Entry(entitys);
if (entry.State == EntityState.Detached)
{
entry.State = EntityState.Modified;
}
SaveChanges();
}
public bool Any(Expression> @where)
{
return this._dbSet.AsNoTracking().Any(@where);
}
public int Count()
{
return this._dbSet.AsNoTracking().Count();
}
public int Count(Expression> @where)
{
return this._dbSet.AsNoTracking().Count(@where);
}
public T FirstOrDefault(Expression> @where)
{
return this._dbSet.AsNoTracking().FirstOrDefault(@where);
}
public T FirstOrDefault(Expression> @where, Expression> order, bool isDesc = false)
{
if (isDesc)
{
return this._dbSet.AsNoTracking().OrderByDescending(order).FirstOrDefault(@where);
}
else
{
return this._dbSet.AsNoTracking().OrderBy(order).FirstOrDefault(@where);
}
}
public IQueryable Distinct(Expression> @where)
{
return this._dbSet.AsNoTracking().Where(@where).Distinct();
}
public IQueryable Where(Expression> @where)
{
return this._dbSet.Where(@where);
}
public IQueryable Where(Expression> @where, Expression> order, bool isDesc = false)
{
if (isDesc)
{
return this._dbSet.Where(@where).OrderByDescending(order);
}
else
{
return this._dbSet.Where(@where).OrderBy(order);
}
}
public IEnumerable Where(Func @where, Func order, int pageIndex, int pageSize, out int count, bool isDesc = false)
{
count = Count();
if (isDesc)
{
return this._dbSet.Where(@where).OrderByDescending(order).Skip((pageIndex - 1) * pageSize).Take(pageSize);
}
else
{
return this._dbSet.Where(@where).OrderBy(order).Skip((pageIndex - 1) * pageSize).Take(pageSize);
}
}
public IQueryable Where(Expression> @where, Expression> order, int pageIndex, int pageSize, out int count, bool isDesc = false)
{
count = Count();
if (isDesc)
{
return this._dbSet.Where(@where).OrderByDescending(order).Skip((pageIndex - 1) * pageSize).Take(pageSize);
}
else
{
return this._dbSet.Where(@where).OrderBy(order).Skip((pageIndex - 1) * pageSize).Take(pageSize);
}
}
public IQueryable GetAll()
{
return this._dbSet.AsNoTracking();
}
public IQueryable GetAll(Expression> order, bool isDesc = false)
{
if (isDesc)
{
return this._dbSet.AsNoTracking().OrderByDescending(order);
}
else
{
return this._dbSet.AsNoTracking().OrderBy(order);
}
}
public T GetById(TType id)
{
return this._dbSet.Find(id);
}
public TType Max(Expression> column)
{
if (this._dbSet.AsNoTracking().Any())
{
return this._dbSet.AsNoTracking().Max(column);
}
return default(TType);
}
public TType Max(Expression> column, Expression> @where)
{
if (this._dbSet.AsNoTracking().Any(@where))
{
return this._dbSet.AsNoTracking().Where(@where).Max(column);
}
return default(TType);
}
public TType Min(Expression> column)
{
if (this._dbSet.AsNoTracking().Any())
{
return this._dbSet.AsNoTracking().Min(column);
}
return default(TType);
}
public TType Min(Expression> column, Expression> @where)
{
if (this._dbSet.AsNoTracking().Any(@where))
{
return this._dbSet.AsNoTracking().Where(@where).Min(column);
}
return default(TType);
}
public TType Sum(Expression> selector, Expression> @where) where TType : new()
{
object result = 0;
if (new TType().GetType() == typeof(decimal))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(decimal?))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(double))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(double?))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(float))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(float?))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(int))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(int?))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(long))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
if (new TType().GetType() == typeof(long?))
{
result = this._dbSet.AsNoTracking().Where(where).Sum(selector as Expression>);
}
return (TType)result;
}
public void Dispose()
{
this._dbContext.Dispose();
}
}
三： 通过DI创建实例
添加RepositoryFactory类和IRepositoryFactory接口
IRepositoryFactory接口：
public interface IRepositoryFactory
{
IRepositorys CreateRepository(IconcardContext mydbcontext) where T : class;
}
RepositoryFactory类：
public class RepositoryFactory : IRepositoryFactory
{
public IRepositorys CreateRepository(IconcardContext mydbcontext) where T : class
{
return new Repositorys(mydbcontext);
}
}
四：Service层
添加BaseService类和IBaseService接口
IBaseService接口：
public interface IBaseService
{
IRepositorys CreateService() where T : class, new();
}
BaseService类：
public class BaseService : IBaseService
{
private IRepositoryFactory _repositoryFactory;
private IconcardContext _mydbcontext;
public BaseService(IRepositoryFactory repositoryFactory, IconcardContext mydbcontext)
{
this._repositoryFactory = repositoryFactory;
this._mydbcontext = mydbcontext;
}
public IRepositorys CreateService() where T : class, new()
{
return _repositoryFactory.CreateRepository(_mydbcontext);
}
}
添加Service模块xxxService类和IxxxService接口，xxxService类继承父类BaseService，生成构造函数。
//构造函数 自动生成
public TypechoService(IRepositoryFactory repositoryFactory, IconcardContext mydbcontext) : base(repositoryFactory, mydbcontext)
{
}
五：DI依赖注入配置
注册DbContext
services.AddDbContext(options=>options.UseMySql(Configuration.GetConnectionString("DefaultConnection")));
\\appsettings.json
"ConnectionStrings": {
"DefaultConnection": "Server=localhost;database=typecho;uid=root;pwd=woshishui;"
}
services.AddScoped();//dbc
services.AddScoped();//泛型工厂
services.AddScoped();//ioc
六：UI层调用service接口
TestController ：实现调用仓储封装增删改查
[Route("api/[controller]")]
[ApiController]
public class TestController : Controller
{
private readonly typechoContext _coreDbContext;
private readonly ITokenHelper _tokenHelper = null;
// ITypechoTestService service = new TypechoService();
private readonly ITypechoTestService _service; //IOC依赖注入
public TestController(typechoContext coreDbContext,ITokenHelper tokenHelper,ITypechoTestService service)
{
_coreDbContext = coreDbContext;
_tokenHelper = tokenHelper;
_service=service;
}
///
/// 验证Token
///
/// token
///
/// 验证Token 带返回状态
///
///
/// >();
var bb = new Dictionary
{
{ "Wyy", "123456" }
};
data.Add(bb);
ret.Code = 200;
ret.Msg = "访问成功!";
ret.Data =data ;
return ret;
}
///
/// 登录测试
///
///
/// keyValuePairs = new Dictionary
{
{ "loginID", user.Username }
};
ret.Code = 200;
ret.Msg = "登录成功";
ret.TnToken= _tokenHelper.CreateToken(keyValuePairs);
}
}
catch(Exception ex)
{
ret.Code = 500;
ret.Msg = "登录失败:"+ex.Message;
}
return Ok(ret);
}
///
/// 异步查询
/// [ApiExplorerSettings(IgnoreApi = true)] 隐藏接口
///
/// AsyGetTest(string token)
{
return Ok(await _service.AsyGetTest());
}
///
/// 同步查询
///
///
/// 条件查询
///
/// AsyGetTestName(int id)
{
return Ok(await _service.AsyGetTestName(id));
}
///
/// 过滤查询
///
/// AsyGetTestG(string name )
{
var courses = _coreDbContext.typecho_test
.Where(w => w.name.Contains(name));
return Ok( await courses.FirstAsync());
}
///
/// 模糊查询
///
/// AsyGetTestLink(string name )
{
var courses = _coreDbContext.typecho_test
.Where(w=>EF.Functions.Like(w.name,"%"));
return Ok( await courses.ToListAsync());
}
///
/// 异步删除数据
///
///
/// AsyDetTestId(int id)
{
return Ok(await _service.AsyDetTestId(id));
}
///
/// 同步删除数据
///
///
///
/// 异步添加数据
///
/// > AsyIntTest(typecho_test test)
{
return Ok(await _service.AsyIntTest(test));
}
///
/// 同步添加数据
///
/// IntTest(typecho_test test)
{
return Ok(_service.IntTest(test));
}
///
/// 异步更新数据
///
///
/// AysUpTest(typecho_test test)
{
var data=await Task.Run(()=> _service.AysUpTest(test));
return Ok(data);
}
///
/// 同步更新数据
///
///
///
/// 图示
