.NET使用TDengine时序数据库和SqlSugar操作TDengine
安装和启动服务
安装和配置
安装服务端程序"TDengine-server-3.0.7.1-Windows-x64.exe"
-
配置文件路径
"C:\TDengine\cfg\taos.cfg"
-
修改IP和端口
The end point of the first dnode in the cluster to be connected to when this dnode or the CLI utility is started
firstEp hostname:6030
firstEp 192.168.1.212:6030
The FQDN of the host on which this dnode will be started. It can be IP address
fqdn hostname
fqdn 192.168.1.212
-
配置日志文件
The directory for writing log files, if you are using Windows platform please change to Windows path
logDir /var/log/taos
logDir C:\TDData\log
-
配置数据目录
All data files are stored in this directory, if you are using Windows platform please change to Windows path
dataDir /var/lib/taos
dataDir C:\TDData\data
-
编码
system charset
charset UTF-8
charset UTF-8
启动
安装后，在C:\TDengine目录下，运行taosd.exe来启动TDengine服务进程。如需使用http/REST服务，运行taosadapter.exe来启动taosAdapter服务进程
taosd.exe
taosadapter.exe
使用客户端（可选）
安装"TDengine-client-3.0.7.1-Windows-x64.exe"
配置类似服务端
taos.exe
show databases;
USE test;
修改密码
taos.exe
show users; // 显示所有用户
alter user root pass '123456MM'; // 修改密码
DBeaver连接
DBeaver是一款流行的跨平台数据库管理工具，方便开发者、数据库管理员、数据分析师等用户管理数据。DBeaver从23.1.1版本开始内嵌支持TDengine。既支持独立部署的TDengine集群也支持TDengine Cloud
默认用户名和密码如下，如果修改默认密码，使用修改后的密码
host: 192.168.1.212
port: 6041
username: root
password: taosdata
新建.NET项目
新建.NET 8控制台项目
NuGet安装如下：
- SqlSugarCore v5.1.4.170
- SqlSugar.TDengineCore v4.18.0
cs
// Program.cs
using SqlSugar.TDengine;
using SqlSugar;
using System;
using SqlSugar.DbConvert;
using TDengine.TMQ;
using System.Collections.Generic;
using System.Linq;
namespace ConsoleApp
{
[SugarTable("mytable02")]
public class MyTable02
{
[SugarColumn(IsPrimaryKey = true)]
public DateTime ts { get; set; }
public float current { get; set; }
public bool isdelete { get; set; }
public string name { get; set; }
public int voltage { get; set; }
public float phase { get; set; }
[SugarColumn(IsOnlyIgnoreInsert = true, IsOnlyIgnoreUpdate = true)]
public string location { get; set; }
[SugarColumn(IsOnlyIgnoreInsert = true, IsOnlyIgnoreUpdate = true)]
public int groupId { get; set; }
}
internal class Program
{
private static List<MyTable02> GetInsertDatas()
{
return new List<MyTable02>() {
new MyTable02()
{
ts = DateTime.Now.AddDays(-1),
current = Convert.ToSingle(1.1),
groupId = 1,
isdelete = false,
name = "测试1",
location = "false",
phase = Convert.ToSingle(1.1),
voltage = 222
},
new MyTable02()
{
ts = DateTime.Now.AddDays(-2),
current = Convert.ToSingle(1.1),
groupId = 1,
isdelete = false,
name = "测试2",
location = "false",
phase = Convert.ToSingle(1.1),
voltage = 222
},
new MyTable02()
{
ts = DateTime.Now,
current = Convert.ToSingle(1.1),
groupId = 1,
isdelete = true,
name = "测试3",
location = "true",
phase = Convert.ToSingle(1.1),
voltage = 111
}
};
}
static void Main(string[] args)
{
//程序启动时加入（这个只要执行一次）
InstanceFactory.CustomAssemblies =
new System.Reflection.Assembly[] { typeof(TDengineProvider).Assembly };
//创建 db对象
var db = new SqlSugarClient(new ConnectionConfig()
{
DbType = SqlSugar.DbType.TDengine,
ConnectionString = "Host=192.168.1.212;Port=6030;Username=root;Password=123456MM;Database=demo",
IsAutoCloseConnection = true,
ConfigureExternalServices = new ConfigureExternalServices()
{
EntityService = (property, column) =>
{
if (column.SqlParameterDbType == null)
{
//需要给列加上通用转换，这样实体就不需要一个一个转了
column.SqlParameterDbType = typeof(CommonPropertyConvert);
}
}
}
});
//db.Insertable(new MyTestTable()
//{
// ts = DateTime.Now,
// speed = 100,
//}).ExecuteCommand();
//建库
db.DbMaintenance.CreateDatabase();
//建超级表
db.Ado.ExecuteCommand("CREATE STABLE IF NOT EXISTS St01 (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT, isdelete BOOL, name BINARY(64)) TAGS (location BINARY(64), groupId INT)");
//创建子表
db.Ado.ExecuteCommand(@"create table IF NOT EXISTS MyTable02 using St01 tags('California.SanFrancisco',1)");
//建模
//db.DbFirst.CreateClassFile("E:\\4-17测试\\TDengineSqlSugarDemo\\TDengineSqlSugarDemo\\Models", "TDengineSqlSugarDemo.Models");
//查询子表
var dt = db.Ado.GetDataTable("select * from MyTable02 ");
//插入单条子表
db.Insertable(new MyTable02()
{
ts = DateTime.Now,
current = Convert.ToSingle(1.1),
groupId = 1,
isdelete = true,
name = "haha",
location = "aa",
phase = Convert.ToSingle(1.2),
voltage = 11
}).ExecuteCommand();
//批量插入子表
db.Insertable(GetInsertDatas()).ExecuteCommand();
//查询子表(主表字段也能查出来)
var list = db.Queryable<MyTable02>().OrderBy(it => it.ts).ToList();
var list1 = db.Queryable<MyTable02>().OrderBy(it => it.ts)
.Select(it => new {
date = it.ts.Date,
ts = it.ts
}).ToList();
//条件查询
var list2 = db.Queryable<MyTable02>().Where(it => it.name == "测试2").ToList();
var list22 = db.Queryable<MyTable02>().Where(it => it.voltage == 222).ToList();
var list222 = db.Queryable<MyTable02>().Where(it => it.phase == 1.2).ToList();
var list2222 = db.Queryable<MyTable02>().Where(it => it.isdelete == true).ToList();
//模糊查询
var list3 = db.Queryable<MyTable02>().Where(it => it.name.Contains("a")).ToList();
//时间差函数
var list31 = db.Queryable<MyTable02>().Select(it =>
new
{
diff = SqlFunc.DateDiff(DateType.Day, it.ts, DateTime.Now),
time = it.ts
}).ToList();
//时间加1天
var list32 = db.Queryable<MyTable02>().Select(it =>
new
{
addTime = SqlFunc.DateAdd(it.ts, 1, DateType.Day),
oldime = it.ts
}).ToList();
//自定义函数:实现时间加1天
var list33 = db.Queryable<MyTable02>().Select(it =>
new
{
addTime = SqlFunc.MappingColumn<DateTime>(" `ts`+1d "),
oldime = it.ts
}).ToList();
//分页
var Count = 0;
var list4 = db.Queryable<MyTable02>().Where(it => it.voltage == 111)
.ToPageList(1, 2, ref Count);
//删除子表
var ts = list.First().ts;
var de = DateTime.Now.AddYears(-1);
var count = db.Deleteable<MyTable02>().Where(it => it.ts > de).ExecuteCommand();
//异步
db.Insertable(new MyTable02()
{
ts = DateTime.Now,
current = Convert.ToSingle(1.1),
groupId = 1,
isdelete = true,
name = "haha",
location = "aa",
phase = Convert.ToSingle(1.2),
voltage = 11
}).ExecuteCommandAsync().GetAwaiter().GetResult();
var list100 = db.Queryable<MyTable02>().ToListAsync().GetAwaiter().GetResult();
//联表查询:不支持left join只能这样
var list101 = db.Queryable<MyTable02, MyTable02>((x, y) => x.ts == y.ts)
.Select((x, y) => new
{
xts = x.ts,
yts = y.ts
}).ToList();
//联表查询在分页
var list102 = db.Queryable<MyTable02, MyTable02>((x, y) => x.ts == y.ts)
.Select((x, y) => new
{
xts = x.ts,
yts = y.ts
}).ToPageList(1, 2);
Console.ReadKey();
}
}
}启动项目，会提示缺失驱动dll，报错信息如下：
System.DllNotFoundException
HResult=0x80131524
Message=Unable to load DLL 'taos' or one of its dependencies: 找不到指定的模块。 (0x8007007E)
Source=TDengine
StackTrace:
在 TDengine.Driver.Impl.NativeMethods.NativeMethods.Connect(IntPtr ip, String user, String password, String db, UInt16 port)
在 TDengine.Driver.Impl.NativeMethods.NativeMethods.Connect(String ip, String user, String password, String db, UInt16 port)
在 TDengine.Driver.Client.Native.NativeClient..ctor(ConnectionStringBuilder builder)
在 TDengine.Driver.Client.DbDriver.Open(ConnectionStringBuilder builder)
在 SqlSugar.TDengineAdo.TDengineConnection..ctor(String connectionString)
在 SqlSugar.TDengine.TDengineProvider.get_Connection()
在 SqlSugar.DbMaintenanceProvider.CreateDatabase(String databaseDirectory)
在 ConsoleApp1.Program.Main(String[] args) 在 C:\Users\***\Program.cs 中: 第 99 行
解决方法：
在"TDengine-client-3.0.7.1-Windows-x64.exe"安装目录找到driver文件夹C:\TDengine\driver，将driver文件夹内的所有dll和lib文件复制到程序运行目录