Asp.net 高性能 Sqlite ORM 框架之 sqliteSugar，sqliteor

Asp.net 高性能 Sqlite ORM 框架之 sqliteSugar，sqliteorm

一、介简

 easyliter框架的升级版本，并且正式命名为SqliteSugar框架，另外Sugar系列还有 MySql和MsSql版本，Oracle版本待开发中（因为客户端太大一直在忧郁当中）

 

用Sqlite 也不址什么高性能了，好用为主。

 

经过一天的努力，Sqlite 版本所有的例子都已经测试通过：

 Sqlite .net4.0+

https://github.com/sunkaixuan/SqliteSugar

 

MySql .NET 4.0+

https://github.com/sunkaixuan/MySqlSugar 

 

MSQL .NET 4.0+下载地址：

https://github.com/sunkaixuan/SqlSugar

 

MSSQL .NET Core版本

https://github.com/sunkaixuan/ASP_NET_CORE_ORM_SqlSugar

 

优点：

1、优越的性能，查询使用  reflection.emit 创建IL语言+委托绑定 然后对该对象进行 cache ,datareader直接赋值给cache对象,高性能拉姆达解析，查询速度达到原生最高性能的写法水准

2、大量语法糖，拉姆达表达示筛选，新颖的多表查询 ，方便的分页等

3、支持事务

4、内置实体类生成函数，无需使用第三方代码生成器

5、简单好用、例子齐全有问必答。

 组成：

sqlSugar是由sqlSugarClient提供统一调用模式 ，sqlSugarClient是由5个部分组成

1、自身函数 

2、实体生成

3、单表查询

4、多表查询

5、基类函数

 

SqliteSugar教程

和MSSQL版本基本一样但是个别例子也会有些细节上的区别

一、查询

1、拉姆达查询（以后会支持多表JOIN）

语法简洁和EF相似，同时兼容 Where("Id>@id",new{id=1}) 这种字符串的写法

   //针对单表或者视图查询
               var dt=  db.GetDataTable("select * from Student");
                //查询所有
                var student = db.Queryable<Student>().ToList();
                var studentDynamic = db.Queryable<Student>().ToDynamic();
                var studentJson = db.Queryable<Student>().ToJson();

                //查询单条
                var single = db.Queryable<Student>().Single(c => c.id == 1);
                //查询单条没有记录返回空对象
                var single2 = db.Queryable<Student>().Where(c => c.id == 1).SingleOrDefault();

                //查询第一条
                var first = db.Queryable<Student>().Where(c => c.id == 1).First();
                var first2 = db.Queryable<Student>().Where(c => c.id == 1).FirstOrDefault();

                //取10-20条
                var page1 = db.Queryable<Student>().Where(c => c.id > 2).OrderBy(it=>it.id).Skip(2).Take(3).ToList();

                //上一句的简化写法，同样取10-20条
                var page2 = db.Queryable<Student>().Where(c => c.id > 1).OrderBy(it => it.id).ToPageList(2, 3);

                //查询条数
                var count = db.Queryable<Student>().Where(c => c.id > 10).Count();

                //从第2条开始以后取所有
                var skip = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(2).ToList();

                //取前2条
                var take = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Take(2).ToList();

                // Not like 
                string conval = "三";
                var notLike = db.Queryable<Student>().Where(c => !c.name.Contains(conval.ToString())).ToList();
                //Like
                conval = "三";
                var like = db.Queryable<Student>().Where(c => c.name.Contains(conval)).ToList();

                // 可以在拉姆达使用 ToString和 Convert,比EF出色的地方
                var convert1 = db.Queryable<Student>().Where(c => c.name == "a".ToString()).ToList();
                var convert2 = db.Queryable<Student>().Where(c => c.id == Convert.ToInt32("1")).ToList();// 
                var convert3 = db.Queryable<Student>().Where(c => DateTime.Now > Convert.ToDateTime("2015-1-1")).ToList();
                var convert4 = db.Queryable<Student>().Where(c => DateTime.Now > DateTime.Now).ToList();

                //支持字符串Where 让你解决，更复杂的查询
                var student12 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100").ToList();
                var student13 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100 and id in( select 1)").ToList();


                //存在记录反回true，则否返回false
                bool isAny100 = db.Queryable<Student>().Any(c => c.id == 100);
                bool isAny1 = db.Queryable<Student>().Any(c => c.id == 1);

                int maxId = db.Queryable<Student>().Max<Student, int>("id");
                int minId = db.Queryable<Student>().Where(c => c.id > 0).Min<Student, int>("id");

                //order By 
                var orderList = db.Queryable<Student>().OrderBy("id desc,name asc").ToList();//字符串支持多个排序
                //可以多个order by表达示
                var order2List = db.Queryable<Student>().OrderBy(it => it.name).OrderBy(it => it.id, OrderByType.desc).ToList(); // order by name as ,order by id desc

                //In
                var intArray = new[] { "5", "2", "3" };
                var intList = intArray.ToList();
                var list0 = db.Queryable<Student>().In(it => it.id, 1, 2, 3).ToList();
                var list1 = db.Queryable<Student>().In(it => it.id, intArray).ToList();
                var list2 = db.Queryable<Student>().In("id", intArray).ToList();
                var list3 = db.Queryable<Student>().In(it => it.id, intList).ToList();
                var list4 = db.Queryable<Student>().In("id", intList).ToList();

                //分组查询
                var list7 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select("sex,count(*) as Count").ToDynamic();
                var list8 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).GroupBy(it => it.id).Select("id,sex, count(*) as Count").ToDynamic();
                List<SexTotal> list9 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select<Student, SexTotal>("Sex, count(*) as Count").ToList();
                List<SexTotal> list10 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy("sex").Select<Student, SexTotal>("Sex, count(*) as Count").ToList();
                //SELECT Sex,Count=count(*)  FROM Student  WHERE 1=1  AND  (id < 20)    GROUP BY Sex --生成结果

 

2、sqlable 接近SQL的一个路线。

放弃了传统的EF写法，让他更接近SQL，可以取代传统的SQL拼接，让格式更好控。

 using (var db = SugarDao.GetInstance())
            {
                //---------Sqlable,创建多表查询---------//

                //多表查询
                List<School> dataList = db.Sqlable()
                   .From("school", "s")
                   .Join("student", "st", "st.id", "s.id", JoinType.INNER)
                   .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
                   .Where("s.id>100 and s.id<@id")
                   .Where("1=1")//可以多个WHERE
                   .OrderBy("id")
                   .SelectToList<School/*新的Model我这里没有所以写的School*/>("st.*", new { id = 1 });

                //多表分页
                List<School> dataPageList = db.Sqlable()
                    .From("school", "s")
                    .Join("student", "st", "st.id", "s.id", JoinType.INNER)
                    .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
                    .Where("s.id>100 and s.id<100")
                    .SelectToPageList<School>("st.*", "s.id", 1, 10);

                //多表分页WHERE加子查询
                List<School> dataPageList2 = db.Sqlable()
                    .From("school", "s")
                    .Join("student", "st", "st.id", "s.id", JoinType.INNER)
                    .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
                    .Where("s.id>100 and s.id<100 and s.id in (select 1 )" /*这里面写子查询都可以*/)
                    .SelectToPageList<School>("st.*", "s.id", 1, 10);



                //--------转成List Dynmaic 或者 Json-----//

                //不分页
                var list1 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDynamic("*", new { id = 1 });
                var list2 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToJson("*", new { id = 1 });
                var list3 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDataTable("*", new { id = 1 });

                //分页
                var list4 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });
                var list5 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageTable("s.*", "l.id", 1, 10, new { id = 1 });
                var list6 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });


                //--------拼接-----//
                Sqlable sable = db.Sqlable().From<Student>("s").Join<School>("l", "s.sch_id", "l.id", JoinType.INNER);
                string name = "a";
                int id = 1;
                if (!string.IsNullOrEmpty(name))
                {
                    sable = sable.Where("s.name=@name");
                }
                if (!string.IsNullOrEmpty(name))
                {
                    sable = sable.Where("s.id=@id or s.id=100");
                }
          
                var pars = new { id = id, name = name };
                int pageCount = sable.Count(pars);
                var list7 = sable.SelectToPageList<Student>("s.*","l.id desc",1,20, pars);


            }

 

3、对原生SQL查询

 using (var db = SugarDao.GetInstance())
            {
                //转成list
                List<Student> list1 = db.SqlQuery<Student>("select * from Student");
                //转成list带参
                List<Student> list2 = db.SqlQuery<Student>("select * from Student where id=@id", new { id = 1 });
                //转成dynamic
                dynamic list3 = db.SqlQueryDynamic("select * from student");
                //转成json
                string list4 = db.SqlQueryJson("select * from student");
                //返回int
                var list5 = db.SqlQuery<int>("select  id from Student limit 0,1").First();
                //反回键值
                Dictionary<string, string> list6 = db.SqlQuery<KeyValuePair<string, string>>("select id,name from Student").ToDictionary(it => it.Key, it => it.Value);
                //反回List<string[]>
                var list7 = db.SqlQuery<string[]>("select  name from Student").First();
                //存储过程
                //var spResult = db.SqlQuery<School>("exec sp_school @p1,@p2", new { p1=1,p2=2 });
            }

 4、容器的转换

using (SqlSugarClient db = SugarDao.GetInstance()) { var list2= db.Queryable<Student>().Where(c => c.id < 10).Select(c => new classNew { newid = c.id, newname = c.name, xx_name = c.name }).ToList();//不支持匿名类转换,也不建议使用 var list3 = db.Queryable<Student>().Where(c => c.id < 10).Select(c => new { newid = c.id, newname = c.name, xx_name = c.name }).ToDynamic();//匿名类转换 } View Code

 

二、更新

可以指定列更新，也可对实体整个更新，也可以排除不更新字段非常的方便好用

int id = 1; using (var db = SugarDao.GetInstance()) { //指定列更新 db.Update<School>(new { name = "蓝翔2" }, it => it.id == id); db.Update<School, int>(new { name = "蓝翔2" }, 1, 3, 12); db.Update<School, string>(new { name = "蓝翔2" }, new string[] { "1", "2" }); //整个实体更新 db.Update(new School { id = id, name = "蓝翔2" }); db.Update<School>(new School { id = id, name = "蓝翔2" }, it => it.id == id); //设置不更新列 db.DisableUpdateColumns = new string[] { "CreateTime" };//设置CreateTime不更新 TestUpdateColumns updObj = new TestUpdateColumns() { VGUID = Guid.Parse("6DF396EB-D1C8-48A5-8BE1-D58D685646A7"), Name = "xx", Name2 = "xx2", IdentityField = 0, CreateTime = null }; //CreateTime将不会被更新 db.Update(updObj); //以前实现这种更新需要用指定列的方式实现，现在就简单多了。 } 更新

 

三、删除

using (var db = SugarDao.GetInstance()) { //真删除 db.Delete<Student, int>(10);//注意主键必需为实体类的第一个属性 db.Delete<School>(it => it.id > 100); db.Delete<School, string>(new string[] { "100", "101", "102" }); //假删除 //db.FalseDelete<school>("is_del", 100); //等同于 update school set is_del=0 where id in(100) //db.FalseDelete<school>("is_del", it=>it.id==100); } 删除

 

四、插入

Student s = new Student() { name = "张" + new Random().Next(1, int.MaxValue) }; db.Insert(s); //插入一条记录 (有主键也好，没主键也好，有自增列也好都可以插进去) List<Student> list = new List<Student>() { new Student() { name="张"+new Random().Next(1,int.MaxValue) }, new Student() { name="张"+new Random().Next(1,int.MaxValue) } }; db.InsertRange(list); //批量插入 插入

 

五、枚举支持

using (SqlSugarClient db = SugarDao.GetInstance()) { var stuList= db.Queryable<Student>().ToList(); db.Insert<Student>(new Student() { sch_id = SchoolEnum.蓝翔2 }); db.Update<Student>(new Student() { sch_id=SchoolEnum.蓝翔2 , id=1} ); var stuList2 = db.Queryable<Student>().Where(it=>it.sch_id==SchoolEnum.蓝翔1).ToList(); } 枚举

 

六、实体生成

using (var db = SugarDao.GetInstance()) { //根据当前数据库生成所有表的实体类文件 （参数：SqlSugarClient ，文件目录，命名空间） db.ClassGenerating.CreateClassFiles(db,"e:\\mysqlModel","Models"); //根据表名生成实体类文件 //db.ClassGenerating.CreateClassFilesByTableNames(db, Server.MapPath("~/Models"), "Models" , "student","school"); //根据表名生成class字符串 var str = db.ClassGenerating.TableNameToClass(db, "Student"); //根据SQL语句生成class字符串 var str2 = db.ClassGenerating.SqlToClass(db, "select * from Student", "student"); } 实体生成

除了上面代码还有T4生成看DEMO不懂可以随时问我

 

七、全局过滤器

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using MySqlSugar; using Models; namespace WebTest.Demo { /// <summary> /// 过滤器 /// </summary> public partial class Filter : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { using (SqlSugarClient db = SugarDaoFilter.GetInstance())//开启数据库连接 { //设置走哪个过滤器 db.CurrentFilterKey = "role"; //queryable var list = db.Queryable<Student>().ToList(); //通过全局过滤器对需要权限验证的数据进行过滤 //相当于db.Queryable<Student>().Where("id=@id",new{id=1}) //sqlable var list2 = db.Sqlable().From<Student>("s").SelectToList<Student>("*"); //同上 //sqlQuery var list3 = db.SqlQuery<Student>("select * from Student where 1=1"); //同上 } } } /// <summary> /// 扩展SqlSugarClient /// </summary> public class SugarDaoFilter { //禁止实例化 private SugarDaoFilter() { } /// <summary> /// 页面所需要的过滤函数 /// </summary> private static Dictionary<string, Func<KeyValueObj>> _filterParas = new Dictionary<string, Func<KeyValueObj>>() { { "role",()=>{ return new KeyValueObj(){ Key=" id=@id" , Value=new{ id=1}}; } }, { "org",()=>{ return new KeyValueObj(){ Key=" orgId=@orgId" , Value=new{ orgId=1}}; } }, }; public static SqlSugarClient GetInstance() { string connection = System.Configuration.ConfigurationManager.ConnectionStrings[@"sqlConn"].ToString(); //这里可以动态根据cookies或session实现多库切换 var reval = new SqlSugarClient(connection); reval.SetFilterFilterParas(_filterParas); return reval; } } } 过滤器

 

八、别名表

using (SqlSugarClient db = SugarDao.GetInstance()) { //-----单个-------// var list = db.Queryable<V_Student>("Student").ToList();//查询的是 select * from student 而我的实体名称为V_Student //-----全局多个设置-------// //设置 Mapping Table 如果没这方面需求可以传NULL List<KeyValue> mappingTableList = new List<KeyValue>(){ new KeyValue(){ Key="FormAttr", Value="Flow_FormAttr"}, new KeyValue(){ Key="Student3", Value="Student"} }; db.SetMappingTables(mappingTableList); } 别名表

 

九、事务

using (SqlSugarClient db = SugarDao.GetInstance())//开启数据库连接
            {
                db.IsNoLock = true;//启用无锁查询
                db.CommandTimeOut = 30000;//设置超时时间
                try
                {
                    db.BeginTran();//开启事务
                    //db.BeginTran(IsolationLevel.ReadCommitted);+3重载可以设置事世隔离级别

                    db.CommitTran();//提交事务
                }
                catch (Exception)
                {
                    db.RollbackTran();//回滚事务
                    throw;
                }
            }

 

十、保留了ADO功能

using (SqlSugarClient db = SugarDao.GetInstance())//开启数据库连接 { var r1= db.GetDataTable("select * from student"); var r2= db.GetSingle<Student>("select * from student limit 0,1"); var r3 = db.GetScalar("select count(1) from student"); var r4 = db.GetReader("select count(1) from student"); r4.Dispose(); var r5 = db.GetString("select name from student limit 0,1"); var r6 = db.ExecuteCommand("select 1"); } View Code

 

 Sqlite版已经发布到Nuget，方便大家下载