feat: 优化初始化缓存及控件功能

插件库/Lskj.Business/Impl/BaseModuleImpl.cs

@@ -926,7 +926,15 @@ namespace Lskj.Business.Impl
         {
             string field = string.Empty;
 
-            DataTable dataTable = GetTableColumns("p_systembillsourcecond");
+            DataTable dataTable;
+            try
+            {
+                dataTable = InitialParamCache.GetTableColumns("p_systembillsourcecond", delegate { return GetTableColumns("p_systembillsourcecond"); });
+            }
+            catch (Exception)
+            {
+                dataTable = GetTableColumns("p_systembillsourcecond");
+            }
 
             if (dataTable.Columns.Contains("FontSize"))
             {
@@ -1015,6 +1023,7 @@ namespace Lskj.Business.Impl
         /// <exception cref="System.NotImplementedException"></exception>
         public static DataTable GetSchemesList(int moduleId)
         {
+            if (moduleId <= 0) return new DataTable();
             try
             {
                 string sqlValue = "select * from P_SystemReportProjectTab where ProjectMode=1 and operatorId=@userid and ModuleId=@moduleId";
@@ -1141,7 +1150,16 @@ namespace Lskj.Business.Impl
             switch (type)
             {
                 case ModuleType.MrpClickBtn:
-                    if (BaseImpl.HasExistsColumn("P_systempopupmenu", "isMrpClickBtn", "int"))
+                    bool isMrpClickBtnExists;
+                    try
+                    {
+                        isMrpClickBtnExists = InitialParamCache.GetColumnExists("P_systempopupmenu", "isMrpClickBtn", "int", delegate { return BaseImpl.HasExistsColumn("P_systempopupmenu", "isMrpClickBtn", "int"); });
+                    }
+                    catch (Exception)
+                    {
+                        isMrpClickBtnExists = BaseImpl.HasExistsColumn("P_systempopupmenu", "isMrpClickBtn", "int");
+                    }
+                    if (isMrpClickBtnExists)
                     {
                         where = " and isnull(isMrpClickBtn,0)=1 and visible1=0 ";
                     }
@@ -1563,7 +1581,19 @@ namespace Lskj.Business.Impl
         //保存条件表
         public static DataTable GetClientCond(string MenuCode)
         {
-            if (BaseImpl.HasExistsTable("P_SystemClientCondTab")) 
+            const string tableName = "P_SystemClientCondTab";
+            bool tableExists;
+            try
+            {
+                tableExists = InitialParamCache.GetTableExists(tableName, delegate { return BaseImpl.HasExistsTable(tableName); });
+            }
+            catch (Exception)
+            {
+                // 缓存未能正常读取或记录时，重新查询，避免影响原有功能。
+                tableExists = BaseImpl.HasExistsTable(tableName);
+            }
+
+            if (tableExists)
             {
                 string sqlValue = string.Format(@"select * from P_SystemClientCondTab where tab='{0}' and disableflag=0  order by  orderid ", MenuCode);
                 return GetDataTableResult(sqlValue);

插件库/Lskj.Business/Impl/InitialParamCache.cs

@@ -0,0 +1,127 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+
+namespace Lskj.Business.Impl
+{
+    /// <summary>
+    /// 单次模块初始化期间复用的参数缓存。
+    /// </summary>
+    public static class InitialParamCache
+    {
+        private static readonly object SyncRoot = new object();
+        private static readonly Dictionary<string, bool> TableExistsCache =
+            new Dictionary<string, bool>(StringComparer.OrdinalIgnoreCase);
+        private static readonly Dictionary<string, bool> ColumnExistsCache =
+            new Dictionary<string, bool>(StringComparer.OrdinalIgnoreCase);
+        private static readonly Dictionary<string, DataTable> TableColumnsCache =
+            new Dictionary<string, DataTable>(StringComparer.OrdinalIgnoreCase);
+
+        /// <summary>
+        /// 获取表是否存在。没有缓存时执行查询，并记录查询结果。
+        /// </summary>
+        public static bool GetTableExists(string tableName, Func<bool> query)
+        {
+            if (string.IsNullOrWhiteSpace(tableName))
+            {
+                throw new ArgumentException("表名不能为空。", "tableName");
+            }
+            if (query == null)
+            {
+                throw new ArgumentNullException("query");
+            }
+
+            lock (SyncRoot)
+            {
+                bool tableExists;
+                if (TableExistsCache.TryGetValue(tableName, out tableExists))
+                {
+                    return tableExists;
+                }
+
+                tableExists = query();
+                TableExistsCache[tableName] = tableExists;
+                return tableExists;
+            }
+        }
+
+        /// <summary>
+        /// 获取字段是否存在。没有缓存时执行查询，并记录查询结果。
+        /// </summary>
+        public static bool GetColumnExists(string tableName, string columnName, string columnType, Func<bool> query)
+        {
+            if (string.IsNullOrWhiteSpace(tableName))
+            {
+                throw new ArgumentException("表名不能为空。", "tableName");
+            }
+            if (string.IsNullOrWhiteSpace(columnName))
+            {
+                throw new ArgumentException("字段名不能为空。", "columnName");
+            }
+            if (query == null)
+            {
+                throw new ArgumentNullException("query");
+            }
+
+            string cacheKey = tableName + "|" + columnName + "|" + (columnType ?? string.Empty);
+            lock (SyncRoot)
+            {
+                bool columnExists;
+                if (ColumnExistsCache.TryGetValue(cacheKey, out columnExists))
+                {
+                    return columnExists;
+                }
+
+                columnExists = query();
+                ColumnExistsCache[cacheKey] = columnExists;
+                return columnExists;
+            }
+        }
+
+        /// <summary>
+        /// 获取表结构。没有缓存时执行查询，并缓存不包含数据的结构模板。
+        /// </summary>
+        public static DataTable GetTableColumns(string tableName, Func<DataTable> query)
+        {
+            if (string.IsNullOrWhiteSpace(tableName))
+            {
+                throw new ArgumentException("表名不能为空。", "tableName");
+            }
+            if (query == null)
+            {
+                throw new ArgumentNullException("query");
+            }
+
+            lock (SyncRoot)
+            {
+                DataTable tableColumns;
+                if (!TableColumnsCache.TryGetValue(tableName, out tableColumns))
+                {
+                    DataTable queryResult = query();
+                    if (queryResult == null)
+                    {
+                        throw new InvalidOperationException("获取表结构失败。" + tableName);
+                    }
+
+                    tableColumns = queryResult.Clone();
+                    TableColumnsCache[tableName] = tableColumns;
+                }
+
+                return tableColumns.Clone();
+            }
+        }
+
+        /// <summary>
+        /// 清空上一次模块初始化记录的参数。
+        /// </summary>
+        public static void Clear()
+        {
+            lock (SyncRoot)
+            {
+                TableExistsCache.Clear();
+                ColumnExistsCache.Clear();
+                TableColumnsCache.Clear();
+            }
+        }
+    }
+}

插件库/Lskj.Business/Lskj.Business.csproj

@@ -87,6 +87,7 @@
     <Compile Include="Impl\BillImpl.cs" />
     <Compile Include="Impl\ConditionalCaching.cs" />
     <Compile Include="Impl\ErrorMessage.cs" />
+    <Compile Include="Impl\InitialParamCache.cs" />
     <Compile Include="Impl\LanguageTranslation.cs" />
     <Compile Include="Impl\MainImpl.cs" />
     <Compile Include="Impl\BillAuditImpl.cs" />