ThinkDev.Data组件介绍
1、ThinkDev.Data组件是ThinkDev组件系列之数据组件，目前主要提供MsSqlBudiler以及一个指导性数据层基类实现。
2、目前支持原生SqlBuilder、Linq to SqlBuilder、Linq to ObjectQuery三种工作方式
3、本组件生成的Sql语句会在数据库做编译缓存，性能差距忽略不计
4、考虑目前大部分Sql注入情况，目前尚未发现注入漏洞
5、本组件无任何外部依赖。
组件基本使用方式：
1、Linq to SqlBuilder模式
首先定义实体类定义 public class UserInfo { public int UserID { get; set; } public string UserName { get; set; } public string NickName { get; set; } public int Sex { get; set; } public string HeadPic { get; set; } public string Introduction { get; set; } public string Other { get ; set; } public DateTime RegTime { get; set; } } 1、执行Insert操作 UserInfo user = new UserInfo(); user.UserID = 1; user.UserName = "V_UserName"; user.NickName = "V_NickName"; user.Sex = 1; user.HeadPic = "V_HeadPic"; user.Introduction = "V_Introduction"; user.Other = "V_Other"; user.RegTime = DateTime.Now(); public string GetSql() { string sql = SqlBuilder<UserInfo>.From(user, "dbo.UserInfo") .Insert() .AddInsert(u => u.UserName, u => u.NickName, u => u.Sex, u => u.HeadPic, u => u.Introduction, u => u.Other, u => u.RegTime) .GetSql(); } 2、执行Select操作 Public string GetSql() { string sql = SqlBuilder<UserInfo>.From("dbo.UserInfo") .Select(u => u.UserName, u => u.NickName, u => u.Sex, u => u.HeadPic, u => u.Introduction) .Where(u => u.UserID > 10) .GetSql(); } 3、执行Update操作 UserInfo user = new UserInfo(); user.UserID = 1; user.UserName = "V_UserName"; user.NickName = "V_NickName"; user.Sex = 1; user.HeadPic = "V_HeadPic"; user.Introduction = "V_Introduction"; user.Other = "V_Other"; Public string GetSql() { string sql = SqlBuilder<UserInfo>.From(user, "dbo.UserInfo") .Update() .Set(u => u.UserName, u => u.NickName, u => u.Sex, u => u.HeadPic, u => u.Introduction) .Where(u => u.UserID) .And(u=>u.UserName, MatchType.In, "user1", "user2", "user3") .GetSql(); } //特别的，如果需要生成语句：UPDATE dbo.UserInfo SET UserName = UserName + '_old' WHERE UserID = 1 Public string GetSql() { string sql = SqlBuilder<UserInfo>.From(user, "dbo.UserInfo") .Update() .Set(u => u.UserName, u => u.UserName, "+", "_old") .Where(u => u.UserID) .And(u=>u.UserName, MatchType.In, "user1", "user2", "user3") .GetSql(); }
2、原生SqlBuilder模式
* 单表查询及排序 public string GetSql() { string sql = SqlBuilder.From("TableName") .Select() .Where("Para1", "value1", SqlDbType.VarChar, 50) .And<int>("Para2", 5, SqlDbType.Int, 0, MatchType.GreaterThanOrEqual) .Or<DateTime>("Para3", DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd")), SqlDbType.DateTime) .OrderBy("ParaID", SortType.Desc) .GetSql(); } 或者 public string GetSql() { string sql = SqlBuilder.From("TableName") .Select() .Where("Para1", "value1") .And<int>("Para2", MatchType.GreaterThanOrEqual, 5) .Or<DateTime>("Para3", DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd"))) .OrderBy("ParaID", SortType.Desc) .GetSql(); }
单表查询，及分页 public string GetSql() { string sql = SqlBuilder.From("TableName") .Select() .Where("Para1", SqlDbType.VarChar, 50, MatchType.Equal, "value1") .Skip(20) .Take(10) .OrderBy("ParaID", SortType.Desc) .GetSql(); } 或者 public string GetSql() { string sql = SqlBuilder.From("TableName") .Select() .Where("Para1", MatchType.Equal, "value1") .Skip(20) .Take(10) .OrderBy("ParaID", SortType.Desc) .GetSql(); }
多表查询 public string GetSql() { string sql = SqlBuilder.From("Table1") .Select("t0.*, t1.para3") .InnerJoin(new JoinTable("Table2").On("para1", MatchType.Equal, "para3").And("para2", MatchType.Equal, "val2")) .Where<int>("para0", MatchType.Equal, 10) .And("para3", MatchType.Equal, "val3") .GetSql(); }
Count查询 public string GetSql() { string sql = SqlBuilder.From("TableName") .SelectCount() .Where<int>("para0", MatchType.Equal, 10) .And("para1", MatchType.Equal, "val1") .GetSql(); }
Max\Min查询 public string GetSql() { string sql = SqlBuilder.From("TableName") .SelectMax("ID") .Where<int>("para0", MatchType.Equal, 10) .And("para1", MatchType.Equal, "val1") .GetSql(); } 或 public string GetSql() { string sql = SqlBuilder.From("TableName") .SelectMin("ID") .Where<int>("para0", MatchType.Equal, 10) .And("para1", MatchType.Equal, "val1") .GetSql(); }
In\Not In查询 public string GetSql() { string sql = SqlBuilder.From("TableName") .SelectCount() .Where<int>("para0", MatchType.In, 1, 2, 3, 4, 5, 6) .And("para1", MatchType.NotIn, new string[]{"val1", "val2", "val3"}) .GetSql(); }
Update操作 public string GetSql() { string sql = SqlBuilder.From("TableName") .Update() .Set("para0", "para0", SqlDbType.VarChar, 1024) .Set<int>("para1", 0, SqlDbType.Int) .Set("para2", "update para2", SqlDbType.VarChar, 50) .Where<int>("para3", SqlDbType.Int, 0, MatchType.GreaterThan, 1) .GetSql(); } 或者 public string GetSql() { string sql = SqlBuilder.From("TableName") .Update() .Set("para0", "para0") .Set<int>("para1", 0) .Set("para2", "update para2") .Where<int>("para3", MatchType.GreaterThan, 1) .GetSql(); }
Delete操作 public string GetSql() { string sql = SqlBuilder.From("TableName") .Delete() .Where<int>("para0", SqlDbType.Int, 0, MatchType.GreaterThan, 1) .GetSql(); } 或者 public string GetSql() { string sql = SqlBuilder.From("TableName") .Delete() .Where<int>("para0", MatchType.GreaterThan, 1) .GetSql(); }
Insert操作 public string GetSql() { string sql = SqlBuilder.From("TableName") .Insert() .AddInsert<int>("para0", 1, SqlDbType.Int) .AddInsert("para1", "UserName from sqlbuilder", SqlDbType.VarChar, 50) .AddInsert("para2", "Title from sqlbuilder", SqlDbType.VarChar, 50) .AddInsert("para3", "Body from sqlbuilder", SqlDbType.VarChar, 50) .AddInsert<int>("para4", 1, SqlDbType.Int) .GetSql(); } 或者 public string GetSql() { string sql = SqlBuilder.From("TableName") .Insert() .AddInsert<int>("para0", 1) .AddInsert("para1", "UserName from sqlbuilder") .AddInsert("para2", "Title from sqlbuilder") .AddInsert("para3", "Body from sqlbuilder") .AddInsert<int>("para4", 1) .GetSql(); }