nuget安装内容 

 1.配置连接字符串 OracleConnectionString这个可用

{"Logging": {"LogLevel": {"Default": "Information","Microsoft.AspNetCore": "Warning"}},"AllowedHosts": "*","DB": {"OracleConnStr": "Password=123456;User ID=system;Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.20.13)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=XE)));","OracleConnectionString": "data source=192.168.20.13:1521/XE;password=123456;user id=system;Incr Pool Size=5;Decr Pool Size=2;","OracleConnStr1": "Data Source=LINKASIA;User Id=system;Password=123456","MySQLConnStr": "server=127.0.0.1;port=3306;user=root;password=123456; database=spongeglueing;","SqliteDBName": "mydb.db"},"SerialPort": {"Name": "COM!"}
}

 2.读取配置文件类

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.Json;namespace TireDirection.Helper.Settings
{/// <summary>/// 读取配置信息/// </summary>public class AppSettingsHelper{/// <summary>/// /// </summary>public static IConfiguration Configuration { get; set; }static AppSettingsHelper(){//ReloadOnChange = true 当appsettings.json被修改时重新加载            Configuration = new ConfigurationBuilder().Add(new JsonConfigurationSource { Path = "Config\\appsettings.json", ReloadOnChange = true }).Build();}}
}

3.Dapper数据库操作类 

using Dapper;
using Oracle.ManagedDataAccess.Client;
using TireDirection.Helper.Settings;namespace TireDirection.Helper.DB
{public class DapperOracleHelper{ public class DapperFactory{ public static readonly string ConnectionStr = AppSettingsHelper.Configuration["DB:OracleConnectionString"] ?? "";public static OracleConnection CrateOracleConnection(){var connection = new OracleConnection(ConnectionStr);connection.Open();return connection;}}/// <summary>/// 执行SQL返回集合/// </summary>/// <param name="strSql">sql语句</param>/// <returns></returns>public static List<T> Query<T>(string strSql){using (var conn = DapperFactory.CrateOracleConnection()){return conn.Query<T>(strSql, null).ToList();}} public static List<T> QuerySqlString<T>(string sqlStr,object param){List<T> result = new List<T>();using (var conn = DapperFactory.CrateOracleConnection()){//string query = "SELECT  *  FROM sys_user t where username=:id ";//var par = new { id = "admin" };//var par = JsonConvert.DeserializeObject(param);result = conn.Query<T>(sqlStr, param).ToList();// conn.Insert(new SysUser());// conn.Update(new SysUser());//根据主键更新// conn.Delete(new SysUser()); //根据主键删除}return result;}public static int ExecuteNonQuery(string sql, params SQLiteParameter[] ps){int result = -1;using (var conn = DapperFactory.CrateOracleConnection()){string query = "SELECT  *  FROM sys_user t where username=:id ";var par = new { id = "admin" };result = conn.Execute(query, par);// conn.Insert(new SysUser());// conn.Update(new SysUser());//根据主键更新// conn.Delete(new SysUser()); //根据主键删除}return result;}}
}

4.操作数据实例 

            public static List<DBTestModel> Test( ){List<DBTestModel> result = new List<DBTestModel>();string SqlStr = @$"Select ID, Name,Value from LINKASIA ";try{result = DapperOracleHelper.Query<DBTestModel>(SqlStr);SqlStr = @$"Select ID, Name,Value from LINKASIA where ID=:id";var par =   new { id = "1" };result = DapperOracleHelper.QuerySqlString<DBTestModel>(SqlStr, par);}catch (Exception ex){Log.Logger.Error($"LinkAsiaDB GetAllSpongeGlueing 异常 {ex.Message}");}return result;}