first commit

DOAN.CodeGenerator/DbProvider.cs

@@ -0,0 +1,61 @@
+using Infrastructure;
+using Infrastructure.Model;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+
+namespace DOAN.CodeGenerator
+{
+    /// <summary>
+    /// 代码生成数据库连接
+    /// </summary>
+    public class DbProvider
+    {
+        protected static SqlSugarClient CodeDb;
+
+        /// <summary>
+        /// 获取动态连接字符串
+        /// </summary>
+        /// <param name="dbName">数据库名</param>
+        /// <returns></returns>
+        public SqlSugarClient GetSugarDbContext(string dbName = "")
+        {
+            DbConfigs configs = AppSettings.Get<DbConfigs>("CodeGenDbConfig");
+
+            string connStr = configs.Conn;
+
+            if (!string.IsNullOrEmpty(dbName))
+            {
+                configs.DbName = dbName;
+            }
+            connStr = connStr.Replace("{dbName}", configs.DbName, StringComparison.OrdinalIgnoreCase);
+
+            var db = new SqlSugarClient(new List<ConnectionConfig>()
+            {
+                new ConnectionConfig(){
+                    ConnectionString = connStr,
+                    DbType = (DbType)configs.DbType,
+                    IsAutoCloseConnection = true,//开启自动释放模式和EF原理一样
+                    InitKeyType = InitKeyType.Attribute,//从特性读取主键和自增列信息
+                },
+            });
+
+            CodeDb = db;
+            return db;
+        }
+
+        /// <summary>
+        /// 获得字符串中开始和结束字符串中间得值
+        /// </summary>
+        /// <param name="str">字符串</param>
+        /// <param name="s">开始</param>
+        /// <param name="e">结束</param>
+        /// <returns></returns> 
+        public static string GetValue(string str, string s, string e)
+        {
+            Regex rg = new("(?<=(" + s + "))[.\\s\\S]*?(?=(" + e + "))", RegexOptions.Multiline | RegexOptions.Singleline);
+            return rg.Match(str).Value;
+        }
+    }
+}