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ASP.NET Core中SqlSugar基本使用

news 来源：原创 2025/5/16 5:58:48

创建数据模型

 public class News{[SugarColumn(IsIdentity = true, IsPrimaryKey = true)]public int Id { get; set; }//nvarchar带中文比较好[SugarColumn(ColumnDataType = "nvarchar(30)")]public string Title { get; set; }[SugarColumn(ColumnDataType = "text")]public string Content { get; set; }public DateTime Time { get; set; }public int BrowseCount { get; set; }public int LikeCount { get; set; }public int TypeId { get; set; }public int WriterId { get; set; }/// <summary>/// 类型，不映射到数据库/// </summary>[SugarColumn(IsIgnore = true)]public TypeInfo TypeInfo { get; set; }}

注册依赖

 //注册上下文：AOP里面可以获取IOC对象，如果有现成框架比如Furion可以不写这一行builder.Services.AddHttpContextAccessor();//注册SqlSugar用AddScopedbuilder.Services.AddScoped<ISqlSugarClient>(s =>{//Scoped用SqlSugarClient SqlSugarClient sqlSugar = new SqlSugarClient(new ConnectionConfig(){DbType = SqlSugar.DbType.SqlServer,ConnectionString = "Server=LAPTOP-F352TNCB\\SQLEXPRESS;Database=MyTestDB;Trusted_Connection=True;Encrypt=True;TrustServerCertificate=True;",IsAutoCloseConnection = true,});return sqlSugar;});

创建表

 private readonly ISqlSugarClient db;public GetString(ISqlSugarClient db){this.db = db;db.DbMaintenance.CreateDatabase();//达梦和Oracle不支持建库//建表（看文档迁移）db.CodeFirst.InitTables<News>(); //所有库都支持    }

增删改查

 public List<News> Get(){//查询表的所有var list = db.Queryable<News>().ToList();return list;}public bool Add(){int result=db.Insertable(new News() { Id=1,Title="hhh",Content="dfafasaf" }).ExecuteCommand();if (result != 0){return true;}else{return false;}}public bool Update(){int result = db.Updateable(new News() { Id = 2, Title = "qqq", Content = "1111111" }).ExecuteCommand();if (result != 0){return true;}else{return false;}}public bool Delete(){int result = db.Deleteable<News>().Where(it => it.Id == 2).ExecuteCommand();if (result != 0){return true;}else{return false;}

详情看官方文档