1. System.Data.SQLite的使用
1.1 包的引入
利用 Nuget引入其相关包
1.2 App.config配置引入到CAD
因为我们当前的项目是类库项目，需要依托于宿主程序才可以运行，所以我们就得需要将SQLite自动生成的App.config里面的部分配置移植到CAD的配置文件中 。保证System.Data.SQLite依赖的正常运行。
1.3 CAD配置文件中引入配置信息
打开后将如下内容复制到CAD安装目录下的acad.exe.config文件中的configuration标签中：
xml
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SQLite.EF6" />
<add name="SQLite Data Provider (Entity Framework 6)" invariant="System.Data.SQLite.EF6" description=".NET Framework Data Provider for SQLite (Entity Framework 6)" type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" />
<remove invariant="System.Data.SQLite" /><add name="SQLite Data Provider" invariant="System.Data.SQLite" description=".NET Framework Data Provider for SQLite" type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite" /></DbProviderFactories>
</system.data>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Data.SQLite" publicKeyToken="db937bc2d44ff139" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-1.0.118.0" newVersion="1.0.118.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>2. sqlSugar的使用
2.1 依赖引入
2.2 工具类
csharp
using gse.Constant;
using SqlSugar;
using System;
namespace gse.Tools
{
/// <summary>
/// SqlSugar配置类
/// </summary>
public class SqlSugarBase
{
//创建数据库对象 (用法和EF Dappper一样通过new保证线程安全)
public SqlSugarClient Db = new SqlSugarClient(new ConnectionConfig()
{
ConnectionString = "datasource="+ CommonConstant.DB_DIRECTORY,
DbType = DbType.Sqlite,
IsAutoCloseConnection = true
},
db => {
db.Aop.OnLogExecuting = (sql, pars) =>
{
//获取原生SQL推荐 5.1.4.63 性能OK
Console.WriteLine(UtilMethods.GetNativeSql(sql, pars));
};
});
}
}2.3 具体使用
实体类
csharp
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace gse.Entities
{
/// <summary>
/// 项目实体
/// </summary>
[SugarTable("tbl_project")]
public class Project
{
/// <summary>
/// 主键
/// </summary>
[SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
public int Id { get; set; }
/// <summary>
/// 项目ID
/// </summary>
public string ProjectId { get; set; }
/// <summary>
/// 项目名称
/// </summary>
public string ProjectName { get; set; }
/// <summary>
/// 项目详细参数
/// </summary>
[SugarColumn(IsNullable = true)]
public string ProjectDesc { get; set; }
/// <summary>
/// 是否为当前项目 0否 1是
/// </summary>
public int CurrentFlag { get; set; }
/// <summary>
/// 项目创建时间
/// </summary>
public string CreateTime { get; set; }
public Project()
{
}
public Project(int id, string projectId, string projectName, string projectDesc, int currentFlag, string createTime)
{
Id = id;
ProjectId = projectId;
ProjectName = projectName;
ProjectDesc = projectDesc;
CurrentFlag = currentFlag;
CreateTime = createTime;
}
public override string ToString()
{
return "Project{" +
"Id='" + Id + '\'' +
", ProjectId='" + ProjectId + '\'' +
", ProjectName='" + ProjectName + '\'' +
", ProjectDesc='" + ProjectDesc + '\'' +
", CurrentFlag=" + CurrentFlag +
", CreateTime='" + CreateTime + '\'' +
'}';
}
}
}Service
csharp
using gse.Entities;
using gse.Tools;
using SqlSugar;
using System;
using System.Collections.Generic;
namespace gse.Service
{
public class TblProjectService
{
SqlSugarBase SqlSugarBase = new SqlSugarBase();
/// <summary>
/// 项目添加
/// </summary>
/// <param name="project"></param>
public string AddProject(Project project)
{
string msg = "";
if (string.IsNullOrEmpty(project.ProjectId))
{
return msg = "项目编号不能为空";
}
if (string.IsNullOrEmpty(project.ProjectName))
{
return msg = "项目名称不能为空";
}
List<Project> pro1 = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.ProjectId == project.ProjectId).ToList();
if (pro1.Count > 0)
{
return msg = "项目编号重复";
}
List<Project> pro2 = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.ProjectName == project.ProjectName).ToList();
if (pro2.Count > 0)
{
return msg = "项目名称重复";
}
project.CreateTime = DateTimeUtils.DATE.Now();
SqlSugarBase.Db.Insertable(project).ExecuteReturnIdentity();
return msg;
}
/// <summary>
/// 更新项目
/// </summary>
/// <param name="project">项目信息</param>
public string UpdateProject(Project project)
{
string msg = "";
if (string.IsNullOrEmpty(project.ProjectId))
{
return msg = "项目编号不能为空";
}
if (string.IsNullOrEmpty(project.ProjectName))
{
return msg = "项目名称不能为空";
}
List<Project> pros = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.ProjectName == project.ProjectName && pro.ProjectId == project.ProjectId)
.ToList();
if (pros.Count > 0)
{
Project pro = pros[0];
pro.ProjectId = project.ProjectId;
pro.ProjectName = project.ProjectName;
pro.ProjectDesc = project.ProjectDesc;
pro.CurrentFlag = project.CurrentFlag;
SqlSugarBase.Db.Updateable(pro).ExecuteCommand();
}
else
{
return msg = "项目不存在";
}
return msg;
}
/// <summary>
/// 设置当前工程
/// </summary>
/// <param name="project"></param>
/// <returns></returns>
public void setCurrentProject(Project project)
{
try
{
Project current = selectCurrentProject();
if (current != null)
{
//首先将原来的当前状态设置为非当前
current.CurrentFlag = 0;
SqlSugarBase.Db.Updateable(current).ExecuteCommand();
}
//设置选中工程为当前工程
List<Project> pros = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.ProjectName == project.ProjectName && pro.ProjectId == project.ProjectId)
.ToList();
if (pros.Count > 0)
{
Project pro = pros[0];
pro.CurrentFlag = 1;
SqlSugarBase.Db.Updateable(pro).ExecuteCommand();
}
}
catch (Exception ex)
{
//事务回滚
SqlSugarBase.Db.Ado.RollbackTran();
return;
}
}
/// <summary>
/// 查看当前工程
/// </summary>
/// <param name="project"></param>
public Project selectCurrentProject()
{
List<Project> projects = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.CurrentFlag == 1).ToList();
if (projects.Count > 0)
{
//首先将原来的当前状态设置为非当前
return projects[0];
}
return null;
}
/// <summary>
/// 删除项目
/// </summary>
/// <param name="projectId">项目ID</param>
public void DeleteProject(string projectId)
{
SqlSugarBase.Db.Deleteable<Project>().Where(it => it.ProjectId == projectId).ExecuteCommand();
}
/// <summary>
/// 根据id查询项目
/// </summary>
/// <param name="projectId"> 项目ID</param>
/// <returns></returns>
public Project SelectProjectById(string projectId)
{
List<Project> projects = SqlSugarBase.Db.Queryable<Project>()
.Where(pro => pro.ProjectId == projectId).ToList();
if (projects.Count > 0)
{
return projects[0];
}
return null;
}
/// <summary>
/// 根据项目id或者项目名称查询列表
/// </summary>
/// <param name="projectId">项目ID</param>
/// <param name="name">项目名称</param>
/// <returns></returns>
public List<Project> SelectProjectPage(string projectId, string name)
{
if (string.IsNullOrEmpty(projectId) && string.IsNullOrEmpty(name))
{
List<Project> projects = SqlSugarBase.Db.Queryable<Project>().ToList();
return projects;
}
else
{
var exp = Expressionable.Create<Project>();
exp.OrIF(!string.IsNullOrEmpty(projectId), it => it.ProjectId.Equals(projectId));
exp.OrIF(!string.IsNullOrEmpty(name), it => it.ProjectName.Contains(name));
var projects = SqlSugarBase.Db.Queryable<Project>().Where(exp.ToExpression()).ToList();
return projects;
}
}
}
}