Cocon90.DB 使用说明

开源库:https://github.com/Cocon90/Cocon90.Db

Sqlite位置:https://www.nuget.org/packages/Cocon90.Db.Sqlite

Mysql位置:https://www.nuget.org/packages/Cocon90.Db.Mysql

SqlServer位置:https://www.nuget.org/packages/Cocon90.Db.SqlServer

一、简介
Cocon90.Db是由Cocon90.Db.Common为核心的类库与其它数据库操作库组合而成,以方便调用为主要目的,支持ORM操作,增、删、改、查、事务、批量执行、创建表、插入或保存记录 等等,并提供多种数据库支持。当前已支持Mysql、Sqlite、SqlServer。

Cocon90.Db is a core class library which is composed of Cocon90.Db.Common and other database operations, which is convenient to call for the main purpose, and provides a variety of database support. Currently supports Mysql, Sqlite, SqlServer.

二、运行环境

环境
NetFramework4.0+ Required
VisualStudio 2015+ Required

三、使用方法
(1)新建一件空的项目,取名Cocon90.Db.Demo
(2)添加对库Cocon90.Db.Common.dll的引用,或者执行Install-Package Cocon90.Db.Common
(3)接下来,如果要操作SqlServer数据库则引入Cocon90.Db.SqlServer,如果要操作Sqlite数据库,则引入Cocon90.Db.Sqlite,如果要操作Mysql,则需要引入Cocon90.Db.Mysql库。

DataBase Require Library
MySql Cocon90.Db.Common,Cocon90.Db.Mysql
Sqlite Cocon90.Db.Common,Cocon90.Db.Sqlite
SqlServer Cocon90.Db.Common,Cocon90.Db.SqlServer

(4)新建Program类,加入Main函数,比如我们要操作Sqlite数据库加入下列代码:

static void Main(string[] args)
{
var dh = Cocon90.Db.Common.Db.GetDataHelper("Cocon90.Db.Sqlite.dll", "Cocon90.Db.Sqlite.DbDriver", "D:\\mysqlite.db;");
// or you can use app.config by this code:
var dh = Cocon90.Db.Common.Db.GetDataHelper();
}

如果在要读取配置文件中的app.config中的连接语句,则需要在App.config中进行如下配置:

<configuration>
<connectionStrings>
<!--<add name="ConnectionString" providerName="Cocon90.Db.Mysql.dll|Cocon90.Db.Mysql.DbDriver" connectionString="Server=127.0.0.1;Port=3306;Database=world;Uid=root;Pwd=123456;"/>-->
<!--<add name="ConnectionString" providerName="Cocon90.Db.SqlServer.dll|Cocon90.Db.SqlServer.DbDriver" connectionString="Server=127.0.0.1;Database=world;Uid=sa;Pwd=123456;"/>-->
<add name="ConnectionString" providerName="Cocon90.Db.Sqlite.dll|Cocon90.Db.Sqlite.DbDriver" connectionString="Data Source=D:\Application\DbTools\sqliteSpy\SQLiteSpy.db3;"/>
</connectionStrings>
</configuration>

然后即可进行数据库的常规操作:

    var tab = dh.GetTable("select * from Student");
dh.ExecNoQuery("...");
dh.GetString("...");
dh.GetBoolean("...");
dh.GetInt("...");
dh.GetListString("...");
dh.GetPagedResult("...");
dh.CreateOrUpdateTable(typeof(Model.Student));

下面是常用的一些测试:

 class Program
{
static void Main(string[] args)
{
//var dh = Cocon90.Db.Common.Db.GetDataHelper("Cocon90.Db.Sqlite.dll", "Cocon90.Db.Sqlite.DbDriver", "D:\\Application\\DbTools\\sqliteSpy\\SQLiteSpy.db3;"); var dh = Cocon90.Db.Common.Db.GetDataHelper(); var createSql = dh.GetCreateTableSql<Model.CountryLanguageModel>();
var updateTabSql = dh.GetUpdateTableSql(typeof(Model.CountryLanguageModel));
var effRow = dh.CreateOrUpdateTable<Model.CountryLanguageModel>(); var needInserts = new List<Model.CountryLanguageModel>();
Random rand = new Random();
for (int i = 0; i < 500; i++)
{
needInserts.Add(new Model.CountryLanguageModel() { Percent = (decimal)(rand.NextDouble() * 10), Date = DateTime.Now.AddDays(-1 * i), Guid = Guid.NewGuid(), IsOfficial = rand.Next(0, 2) > 0, Code = i, Language = "Lang_" + i });
}
var succRows = dh.Save(needInserts.ToArray());
dh.GetTable("SELECT * FROM countrylanguage");
var lst = dh.GetList<Model.CountryLanguageModel>("SELECT * FROM countrylanguage");
Console.WriteLine(lst.Count);
var oneModel = dh.GetOne<Model.CountryLanguageModel>("select * from countrylanguage");
var oneModel2 = dh.GetOneByPrimaryKey<Model.CountryLanguageModel>(1, "Lang_1");
//var successRows = dh.Insert(new Model.CountryLanguage() { Percent = 1.555m, IsOfficial = false, Code = 2, Language = "Lang" },
// new Model.CountryLanguage() { Percent = 1.66m, IsOfficial = true, Code = 3, Language = "Lang" });
var updateSql = dh.GetUpdateSqlByPrimaryKey(new Model.CountryLanguageModel() { Percent = 9.9m }, true, "1=1 AND 2=2", 3, "Lang");
var updateSql2 = dh.GetUpdateSql(new Model.CountryLanguageModel { Code = 3, Percent = 3.3m }, false, null);
var updateSql3 = dh.GetUpdateSqlByWhere(new Model.CountryLanguageModel { Code = 3, Percent = 3.3m }, true, "Language='Lang'", new Common.Data.Params("@Name", "song"));
var updateRow3 = dh.UpdateByByWhere(new Model.CountryLanguageModel { Percent = 3.3m }, true, "Language='Lang'");
var updateRow = dh.UpdateByPrimaryKey(new Model.CountryLanguageModel { Percent = 4.5m }, true, null, 3, "Lang");
var deleteSql = dh.GetDeleteSqlByPrimaryKey<Model.CountryLanguageModel>("1=1", 3, "Lang");
var deleteSql1 = dh.GetDeleteSqlByPrimaryKey<Model.CountryLanguageModel>(null, 3, "Lang_111");
var deleteSql2 = dh.GetDeleteSqlByWhere<Model.CountryLanguageModel>("Percentage=@Perc", new Common.Data.Params("Perc", 100));
var deleteSql3 = dh.GetDeleteSql(new Model.CountryLanguageModel { Code = 3, Percent = 3.3m }, "1=@myParam", new Common.Data.Params("myParam", 1));
var deleteSql4 = dh.GetDeleteSql<Model.CountryLanguageModel>(null, "1=@myParam", new Common.Data.Params("myParam", 1));
var successRow = dh.Delete(new Model.CountryLanguageModel { Code = 3, Percent = 4.5m }); var saveSql = dh.GetSaveSql(new Model.CountryLanguageModel() { Percent = 1.555m, IsOfficial = false, Code = 2, Language = "Lang" },
new Model.CountryLanguageModel() { Percent = 1.66m, IsOfficial = true, Code = 3, Language = "Lang" });
var saveRows = dh.Save(new Model.CountryLanguageModel() { Percent = 1.555m, IsOfficial = false, Code = 2, Language = "Lang" },
new Model.CountryLanguageModel() { Percent = 1.66m, IsOfficial = true, Code = 3, Language = "Lang" });
var executeNoQuery = dh.ExecNoQuery("update countrylanguage set Percentage=4.4 where Percentage=@Percentage", new Model.CountryLanguageModel { Percent = 1.6m });
var pageSql = dh.Driver.GetPagedSql("select * from countrylanguage", "CountryCode", true, 1, 10);
var pageResult = dh.GetPagedResult<Model.CountryLanguageModel>("select * from countrylanguage", "countrycode", true, 1, 10); }
}

其中测试实体类:

    public class Student
{
[Cocon90.Db.Common.Attribute.Column(PrimaryKey = true)]
public Guid? Id { get; set; }
public string Name { get; set; }
public string Addrss { get; set; }
public DateTime? Birthday { get; set; }
}
    [Table(TableName = "CountryLanguage")]
public class CountryLanguageTab
{
[Column(PrimaryKey = true, ColumnName = "CountryCode")]
public int? Code { get; set; }
[Column(PrimaryKey = true, CreateDDL = "varchar(20)")]
public string Language { get; set; }
public bool? IsOfficial { get; set; }
[Column(ColumnName = "Percentage", PrimaryKey = false)]
public decimal? Percent { get; set; }
public DateTime? Date { get; set; }
public Guid? Guid { get; set; }
} [Table(TableName = "CountryLanguage")]
public class CountryLanguageModel : CountryLanguageTab
{
[Ignore]
public string CodeAndLang { get; set; }
}

需要注意的是,实体的设计时,所有类型都必须可以为NULL值(如果是结构体类型,请采用可空类型)。

Cocon90.Db调用方法的更多相关文章

  1. 完整的分页存储过程以及c#调用方法

    高效分页存储过程 USE [db] GO /****** 对象: StoredProcedure [dbo].[p_Page2005] 脚本日期: // :: ******/ SET ANSI_NUL ...

  2. xpath爬取网页评论,网址的的调用方法,数据库特殊字符的替换

    # -*- coding:utf-8-*-from lxml import etreeimport urllibimport jsonimport requestsimport MySQLdbid=0 ...

  3. phpcms 的实用相关接口,函数,调用方法

    常用函数 , 打开include/global.func.php,下面存放一些公共函数view plaincopy to clipboardprint? strip_tags() 调用内容过滤html ...

  4. phpcms常用接口调用方法

    常用函数 , 打开include/global.func.php,下面存放一些公共函数 view plaincopy to clipboardprint?function str_charset($i ...

  5. 关于AOP无法切入同类调用方法的问题

    一.前言 Spring AOP在使用过程中需要注意一些问题,也就是平时我们说的陷阱,这些陷阱的出现是由于Spring AOP的实现方式造成的.每一样技术都或多或少有它的局限性,很难称得上完美,只要掌握 ...

  6. [No000085]C#反射Demo,通过类名(String)创建类实例,通过方法名(String)调用方法

    using System; using System.Collections.Generic; using System.Linq; using System.Reflection; using Sy ...

  7. ThinkPHP跨控制器调用方法

    跨控制器调用方法 1. 先造对象,再调用里面的方法 $sc=new \Home\Controller\IndexController();  用绝对路径找echo $sc->ShuChu(); ...

  8. C# 反射之调用方法谈

    反射的定义 反射提供了描述程序集.模块和类型的对象(Type 类型). 可以使用反射动态创建类型的实例,将类型绑定到现有对象,或从现有对象获取类型并调用其方法或访问其字段和属性. 如果代码中使用了特性 ...

  9. 利用反射调用方法时,处理ref,out参数需要注意的问题(转)

    转自:http://www.68idc.cn/help/buildlang/ask/20150318283817.html 项目中如下的泛型方法,因为要在运行时,动态指定类型参数,所以要利用反射来实现 ...

随机推荐

  1. View Programming Guide for iOS_读书笔记

    关于Window的定义的要点 Windows do not have any visible content themselves but provide a basic container for ...

  2. 分布式系统:CAP

    一致不太理解CAP,最近好像有点感觉了,这里写下来,先介绍下CAP的定义: C:一致性.写完数据后,立马能看到最新数据. A:可用性.所有请求必须有响应. P:分区容错性.网络或服务器故障不会导致系统 ...

  3. JAVA 解压压缩包中指定文件或实现压缩文件的预览及下载单个或多个指定的文件

    业务逻辑中还要判读用户是否有此文件的防问权限 2017-04-20 新增文件与文件夹图标显示及过滤高亮显示功能: 2017-05-20 新增搜索向前及向后.及更新下载功能.更新文件路径显示: 测试地址 ...

  4. android之lint警告This Handler class should be static or leaks might occur

    更新到adt2.0的开发者们可能会在handler上发现这么一条警告:This Handler class should be static or leaks might occur . 首先在ADT ...

  5. shell单引号与变量、双引号与变量、如何在多重引号里面取到shell变量的值?

    如何在多重引号里面取到shell变量的值? 双引号是不会屏蔽对变量和某些特殊符号的转义的,而单引号里的所有内容都会原封不动的输出,而单引号里再用单引号将变量引起来,变量就又可以正常的显示,有点像数学里 ...

  6. HotSpot Generations

    本文主要介绍HotSpot JVM的 Generations 机制, 原文来自 Oracle 文档  Java SE 6 HotSpot[tm] Virtual Machine Garbage Col ...

  7. Ubuntu 虚拟机安装几点细节整理

    虚拟机或者Wubi安装其实都挺简单的,这里还是再次总结下,给遇到麻烦的同学一点参考. 虚拟机安装 虚拟机直接通过新建-标准-选择镜像,Vmware能够自动识别镜像并进行Easy Install安装,E ...

  8. 分析器错误消息: 未能找到 CodeDom 提供程序类型

    ylbtech-Error-WebForm:分析器错误消息: 未能找到 CodeDom 提供程序类型“Microsoft.CodeDom.Providers.DotNetCompilerPlatfor ...

  9. QT入门系列(3):控制台输出QString

    方式一:使用qDebug()输出 QString str("liyifeng");qDebug() << str;12输出结果:"liyifeng" ...

  10. Cesium原理篇:3D Tiles(1)渲染调度【转】

    Cesium在2016年3月份左右推出3D Tiles数据规范,在glTF基础上提供了LOD能力,定位就是Web环境下海量三维模型数据.虽然目前3D Tiles还是Beta阶段,有不少硬伤,但3D T ...