geboshi_V1/LeatherProject/LeatherApp/Utils/DBUtils.cs

using SqlSugar;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LeatherApp.Utils
{
    public class DBUtils
    {
        private static SqlSugarClient db;
        //public static dbBackup()
        //{
        //    //mysqldump -uroot-p123456 mydb > /data/mysqlDump/mydb.sql
        //    //mysqldump - uroot - p123456 mydb > / data / mysqlDump / mydb.sql
        //}

        public static SqlSugarClient getErpDBCon(SqlSugar.DbType dbType = SqlSugar.DbType.SqlServer)
        {
            if (string.IsNullOrEmpty(Config.ErpDBConStr))
                return null;
            if (db != null) return db;

            db = new SqlSugarClient(new ConnectionConfig()
            {
                ConnectionString = Config.ErpDBConStr,
                DbType = dbType,
                IsAutoCloseConnection = true
            },
           db =>
           {
               db.Aop.OnLogExecuting = (sql, pars) =>
               {
                   Console.WriteLine(sql);//输出sql,查看执行sql 性能无影响

                   //获取原生SQL推荐 5.1.4.63  性能OK
                   //UtilMethods.GetNativeSql(sql,pars)

                   //获取无参数化SQL 对性能有影响，特别大的SQL参数多的，调试使用
                   //UtilMethods.GetSqlString(DbType.SqlServer,sql,pars) 
               };

           });
            return db;
        }
        public static DataTable execSql(string sql, List<SugarParameter> parameters, SqlSugar.DbType dbType = SqlSugar.DbType.SqlServer)
        {
            //查询表的所有
            var mydb = getErpDBCon(dbType);
            if(mydb == null) return null;   

            if (!mydb.Ado.IsValidConnection())
                mydb.Ado.Open();
            return mydb.Ado.GetDataTable(sql, parameters);
        }
    }
}