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AddScoped
builder.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