hongmao.DBHelper
1.0.4
There is a newer version of this package available.
See the version list below for details.
See the version list below for details.
dotnet add package hongmao.DBHelper --version 1.0.4
NuGet\Install-Package hongmao.DBHelper -Version 1.0.4
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="hongmao.DBHelper" Version="1.0.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add hongmao.DBHelper --version 1.0.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: hongmao.DBHelper, 1.0.4"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install hongmao.DBHelper as a Cake Addin #addin nuget:?package=hongmao.DBHelper&version=1.0.4 // Install hongmao.DBHelper as a Cake Tool #tool nuget:?package=hongmao.DBHelper&version=1.0.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
数据库工具类
使用案例如下:
using Helper;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.SQLite;
using System.Data.SqlTypes;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DBHelper.Test.Properties;
using HmExtension.Commons.Extensions;
namespace DBHelper.Test
{
internal class Program
{
private static Helper.DBHelper helper;
static Program()
{
helper = new Helper.DBHelper(() =>
{
var builder = new SQLiteConnectionStringBuilder
{
DataSource = "test.db"
};
return new SQLiteConnection(builder.ConnectionString);
},(name,value)=>new SQLiteParameter(name,value));
var rs = Sqls.ResourceManager.GetResourceSet(CultureInfo.CurrentCulture, true, true);
if (rs == null) return;
foreach (DictionaryEntry o in rs)
{
helper.ExecuteNonQuery(o.Value.ToString());
o.Key.Println("正在尝试创建表:");
}
}
static void Main(string[] args)
{
// var tb = SqlBuilder.CreateBuilder("user_info");
// // 指定要查询的列
// // 方式1 => select id, username from user_info
// //tb.Column().Add("id", "username");
// // 方式2 => select id,username from user_info
// //tb.Select("id", "username");
// // 方式3 => select * from user_info
// //tb.Select("*"); // 或不指定
// // 指定查询条件
// var whereBuild = tb.Where();
// // 方式1
// whereBuild.And("id", "=", 1);
// // 方式2
// string username = "admin";
// // 仅当username不为空时才添加查询条件
// whereBuild.And(!string.IsNullOrWhiteSpace(username),"username", "=", "admin");
// // 方式3
// var condition = whereBuild.And();
// condition.And("password", "=", 1);
// condition.Or("username", "like", "a%");
// /// 指定排序
// tb.OrderBy("id", OrderType.ASC);
// // 指定分组
// tb.GroupBy("id");
// // 指定分组条件
// var having = tb.Having();
// having.And("id", ">", 1);
// // 生成查询SQL语句
// "查询SQL语句".Println("===============", "===============");
// tb.ToSelect(out var p).Println("SQL ");
// p.ToList().ForEach(x => x.Println());
//
// // 生成统计SQL语句
// "统计SQL语句".Println("===============", "===============");
// tb.ToCount(out var p2).Println("SQL ");
// p2.ToList().ForEach(x => x.Println());
//
// // 生成插入SQL语句
// "插入SQL语句".Println("===============", "===============");
// var tb2 = SqlBuilder.CreateBuilder("user_info");
// tb2.Insert("id", 1);
// tb2.Insert("username", "admin");
// tb2.ToInsert(out var p3).Println("SQL ");
// p3.ToList().ForEach(x => x.Println());
//
// // 生成更新SQL语句
// "更新SQL语句".Println("===============", "===============");
// var tb3 = SqlBuilder.CreateBuilder("user_info");
// tb3.Set("username", "admin");
// tb3.Set("password", "123456");
// tb3.Where().And("id", "=", 1);
// tb3.ToUpdate(out var p4).Println("SQL ");
// p4.ToList().ForEach(x => x.Println());
//
// // 生成删除SQL语句
// "删除SQL语句".Println("===============", "===============");
// var tb4 = SqlBuilder.CreateBuilder("user_info");
// tb4.Where().And("id", "=", 1);
// tb4.ToDelete(out var p5).Println("SQL ");
// 测试简化传参
// var user = new UserInfo
// {
// Username = "admin",
// Password = "123"
// };
helper.IsPrintSql = true;
helper.IsPrintParameters = true;
helper.IsPrintResult = true;
// // 传对象
// "传对象".Println();
// helper.ExecuteNonQuery("insert into user_info(username,password) values(@Username,@Password)", user);
//
// // 传字典
// "传字典".Println();
// var dict = new Dictionary<string, object>
// {
// { "Username", "root" },
// { "Password", "root" }
// };
// helper.ExecuteNonQuery("insert into user_info(username,password) values(@Username,@Password)", dict);
// 表连接测试
// var tb = SqlBuilder.CreateBuilder("user_info");
// tb.Join("order_info", "user_id", "id");
// tb.Join("order_detail", "o.id", "order_id", JoinType.Left);
// tb.ToSelect().Println("SQL: => ");
// 新增对象测试
UserInfo user = new UserInfo
{
Username = "admin",
Password = "123"
};
helper.InsertSelective(user);
/*
* SELECT * FROM user_info u
* user_info u INNER JOIN order_info o ON o.user_id = u.id
* user_info u LEFT JOIN order_detail od ON od.order_id = o.id
*/
Console.ReadKey();
}
}
}
public class UserInfo
{
public int? Id { get; set; }
public string Username { get; set; }
public string Password { get; set; }
}
Product | Versions Compatible and additional computed target framework versions. |
---|---|
.NET Framework | net461 is compatible. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
.NETFramework 4.6.1
- hongmao.HmExtension.Commons (>= 1.0.1.5)
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
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