FreeSql 是功能强大的对象关系映射技术(O/RM),支持 .NETCore 2.1+ 或 .NETFramework 4.0+ 或 Xamarin
扶摇直上,至强ORM只为自由编码;鹏程万里,至简Linq可使保留黑发;横批:FreeSql(诗人:Coder)
- 支持 CodeFirst 迁移,哪怕使用 Access 数据库也支持;
- 支持 DbFirst 从数据库导入实体类,安装实体类生成工具;
- 支持 深入的类型映射,比如pgsql的数组类型;
- 支持 丰富的表达式函数,以及灵活的自定义解析;
- 支持 导航属性一对多、多对多贪婪加载,以及延时加载;
- 支持 读写分离、分表分库,租户设计,过滤器,乐观锁,悲观锁;
- 支持 MySql/SqlServer/PostgreSQL/Oracle/Sqlite/达梦数据库/Access;
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《新人学习指引》 | 《Select》 | 《Update》 | 《Insert》 | 《Delete》 |
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《表达式函数》 | 《CodeFirst》 | 《DbFirst》 | 《BaseEntity》 |
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《Repository》 | 《UnitOfWork》 | 《过滤器》 | 《乐观锁》 | 《DbContext》 |
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《读写分离》 | 《分区分表》 | 《租户》 | 《AOP》 | 《黑科技》 | 更新日志 |
Package Name | NuGet | Downloads |
---|---|---|
FreeSql | ||
FreeSql.Repository | ||
FreeSql.DbContext | ||
FreeSql.AdminLTE |
FreeSql 提供了五种使用习惯,请根据实际情况选择团队合适的一种:
- 要么FreeSql,原始用法;
- 要么FreeSql.Repository,仓储+工作单元习惯;
- 要么FreeSql.DbContext,有点像efcore的使用习惯;
- 要么FreeSql.Connection.Extensions,有点像Dapper的使用习惯;
- 要么FreeSql.BaseEntity,我求简单现在使用的这个;
学习项目
欢迎更多使用 FreeSql 的开源项目加入目录
Package Name | Version |
---|---|
FreeSql.Provider.MySql | NETStandard2.0、net45、net40 |
FreeSql.Provider.MySqlConnector | NETStandard2.0、net45 |
FreeSql.Provider.PostgreSQL | NETStandard2.0、net45 |
FreeSql.Provider.SqlServer | NETStandard2.0、net45、net40 |
FreeSql.Provider.Sqlite | NETStandard2.0、net45、net40 |
FreeSql.Provider.Oracle | NETStandard2.0、net45、net40 |
FreeSql.Provider.Odbc | NETStandard2.0、net45、net40 |
FreeSql.Extensions.LazyLoading | NETStandard2.0、net45、net40 |
FreeSql.Extensions.JsonMap | NETStandard2.0、net45、net40 |
FreeSql.Extensions.BaseEntity | NETStandard2.0 |
DataType | ConnectionString |
---|---|
DataType.MySql | Data Source=127.0.0.1;Port=3306;User ID=root;Password=root; Initial Catalog=cccddd;Charset=utf8; SslMode=none;Min pool size=1 |
DataType.PostgreSQL | Host=192.168.164.10;Port=5432;Username=postgres;Password=123456; Database=tedb;Pooling=true;Minimum Pool Size=1 |
DataType.SqlServer | Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Min Pool Size=1 |
DataType.Oracle | user id=user1;password=123456; data source=//127.0.0.1:1521/XE;Pooling=true;Min Pool Size=1 |
DataType.Sqlite | Data Source=|DataDirectory|\document.db; Attachs=xxxtb.db; Pooling=true;Min Pool Size=1 |
DataType.OdbcMySql | Driver={MySQL ODBC 8.0 Unicode Driver}; Server=127.0.0.1;Persist Security Info=False; Trusted_Connection=Yes;UID=root;PWD=root; DATABASE=cccddd_odbc;Charset=utf8; SslMode=none;Min Pool Size=1 |
DataType.OdbcSqlServer | Driver={SQL Server};Server=.;Persist Security Info=False; Trusted_Connection=Yes;Integrated Security=True; DATABASE=freesqlTest_odbc; Pooling=true;Min Pool Size=1 |
DataType.OdbcOracle | Driver={Oracle in XE};Server=//127.0.0.1:1521/XE; Persist Security Info=False; Trusted_Connection=Yes;UID=odbc1;PWD=123456; Min Pool Size=1 |
DataType.OdbcPostgreSQL | Driver={PostgreSQL Unicode(x64)};Server=192.168.164.10; Port=5432;UID=postgres;PWD=123456; Database=tedb_odbc;Pooling=true;Min Pool Size=1 |
DataType.OdbcDameng (达梦) | Driver={DM8 ODBC DRIVER};Server=127.0.0.1:5236; Persist Security Info=False; Trusted_Connection=Yes; UID=USER1;PWD=123456789 |
DataType.Odbc | Driver={SQL Server};Server=.;Persist Security Info=False; Trusted_Connection=Yes;Integrated Security=True; DATABASE=freesqlTest_odbc; Pooling=true;Min pool size=1 |
dotnet add package FreeSql.Provider.Sqlite
static IFreeSql fsql = new FreeSql.FreeSqlBuilder()
.UseConnectionString(FreeSql.DataType.Sqlite,
@"Data Source=|DataDirectory|\document.db;Pooling=true;Max Pool Size=10")
.UseAutoSyncStructure(true) //自动同步实体结构到数据库
.Build(); //请务必定义成 Singleton 单例模式
class Song {
[Column(IsIdentity = true)]
public int Id { get; set; }
public string Title { get; set; }
public string Url { get; set; }
public DateTime CreateTime { get; set; }
public virtual ICollection<Tag> Tags { get; set; }
}
class Song_tag {
public int Song_id { get; set; }
public virtual Song Song { get; set; }
public int Tag_id { get; set; }
public virtual Tag Tag { get; set; }
}
class Tag {
[Column(IsIdentity = true)]
public int Id { get; set; }
public string Name { get; set; }
public int? Parent_id { get; set; }
public virtual Tag Parent { get; set; }
public virtual ICollection<Song> Songs { get; set; }
public virtual ICollection<Tag> Tags { get; set; }
}
//OneToOne、ManyToOne
var t0 = fsql.Select<Tag>()
.Where(a => a.Parent.Parent.Name == "粤语")
.IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "xxx"))
.ToList();
//OneToMany
var t1 = fsql.Select<Tag>()
.Where(a => a.Tags.AsSelect().Any(t => t.Parent.Id == 10))
.ToList();
//ManyToMany
var t2 = fsql.Select<Song>()
.Where(s => s.Tags.AsSelect().Any(t => t.Name == "国语"))
.IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "xxx"))
.ToList();
//Other
var t3 = fsql.Select<Xxx>()
.Where(a => a.IsDelete == 0)
.WhereIf(keyword != null, a => a.UserName.Contains(keyword))
.WhereIf(role_id > 0, a => a.RoleId == role_id)
.Where(a => a.Nodes.AsSelect().Any(t => t.Parent.Id == t.UserId))
.Count(out var total)
.Page(page, size)
.OrderByDescending(a => a.Id)
.ToList()
更多前往Wiki:《Select 查询数据文档》
var t3 = fsql.Select<Song>()
.Where(a => new[] { 1, 2, 3 }.Contains(a.Id))
.ToList();
var t4 = fsql.Select<Song>()
.Where(a => a.CreateTime.Date == DateTime.Now.Date)
.ToList();
var t5 = fsql.Select<Song>()
.OrderBy(a => Guid.NewGuid())
.Limit(1)
.ToList();
更多前往Wiki:《表达式函数》
dotnet add package FreeSql.Repository
using (var uow = fsql.CreateUnitOfWork()) {
var repo1 = uow.GetRepository<Song, int>();
var repo2 = uow.GetRepository<Tag, int>();
await repo1.InsertAsync(new Song());
await repo2.InsertAsync(new Tag());
uow.Commit();
}
dotnet add package FreeSql.DbContext
using (var ctx = new fsql.CreateDbContext()) {
var songs = ctx.Set<Song>();
var tags = ctx.Set<Tag>();
var tag = new Tag {
Name = "testaddsublist",
Tags = new[] {
new Tag { Name = "sub1" },
new Tag { Name = "sub2" },
new Tag {
Name = "sub3",
Tags = new[] {
new Tag { Name = "sub3_01" }
}
}
}
};
//tags.Add(tag);
ctx.Add(tag);
await ctx.SaveChangesAsync();
}
public void ConfigureServices(IServiceCollection services) {
services.AddSingleton<IFreeSql>(Fsql);
services.AddFreeRepository(filter => filter
.Apply<ISoftDelete>("SoftDelete", a => a.IsDeleted == false)
.Apply<ITenant>("Tenant", a => a.TenantId == 1)
,
this.GetType().Assembly
);
}
Temporary disable:
var repoq = fsql.GetRepository<Song, int>();
using (repo1.DataFilter.Disable("Tenant")) {
//Tenant Invalid
}
//Tenant restore
FreeSql Query & Dapper Query
Elapsed: 00:00:00.6733199; Query Entity Counts: 131072; ORM: Dapper
Elapsed: 00:00:00.4554230; Query Tuple Counts: 131072; ORM: Dapper
Elapsed: 00:00:00.6846146; Query Dynamic Counts: 131072; ORM: Dapper
Elapsed: 00:00:00.6818111; Query Entity Counts: 131072; ORM: FreeSql*
Elapsed: 00:00:00.6060042; Query Tuple Counts: 131072; ORM: FreeSql*
Elapsed: 00:00:00.4211323; Query ToList<Tuple> Counts: 131072; ORM: FreeSql*
Elapsed: 00:00:01.0236285; Query Dynamic Counts: 131072; ORM: FreeSql*
FreeSql ToList & Dapper Query
Elapsed: 00:00:00.6707125; ToList Entity Counts: 131072; ORM: FreeSql*
Elapsed: 00:00:00.6495301; Query Entity Counts: 131072; ORM: Dapper
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