惰性加载查询，可以使用join或left了

YiSha.Business/YiSha.Service/OrganizationManage/UserService.cs

@@ -33,9 +33,19 @@ public async Task<List<UserEntity>> GetList(UserListParam param)
 
         public async Task<List<UserEntity>> GetPageList(UserListParam param, Pagination pagination)
         {
+
             var expression = ListFilter(param);
-            var list = await this.BaseRepository().FindList(expression, pagination);
-            return list.ToList();
+            //var list = await this.BaseRepository().FindList(expression, pagination);
+
+            //jhzou120230902 *******惰性加载查询，可以使用join或left了***
+            var ilist = this.BaseRepository().FindListLinq(expression);
+            pagination.TotalCount = ilist.Count();
+            var pageData = (
+                            from i in ilist.OrderByDescending(s => s.BaseCreateTime).Skip(pagination.SkipCount).Take(pagination.PageSize)
+                            select i 
+                            ).ToList();
+
+            return pageData;
         }
 
         public async Task<UserEntity> GetEntity(long id)

YiSha.Data/YiSha.Data.EF/Database/MySqlDatabase.cs

@@ -421,5 +421,16 @@ public async Task<T> FindObject<T>(string strSql) where T : class
             return list.FirstOrDefault();
         }
         #endregion
+
+
+        #region Linq惰性加载方式查询
+
+        public IEnumerable<T> FindListLinq<T>(Expression<Func<T, bool>> condition) where T : class, new()
+        {
+            IEnumerable<T> data = dbContext.Set<T>().Where(condition);
+            return data;
+        }
+
+        #endregion
     }
 }

YiSha.Data/YiSha.Data.EF/Database/SqlServerDatabase.cs

@@ -418,6 +418,18 @@ public async Task<T> FindObject<T>(string strSql) where T : class
             var list = await dbContext.SqlQuery<T>(strSql);
             return list.FirstOrDefault();
         }
+
+        /// <summary>
+        /// Linq惰性加载方式查询
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="condition"></param>
+        /// <returns></returns>
+        public IEnumerable<T> FindListLinq<T>(Expression<Func<T, bool>> condition) where T : class, new()
+        {
+            IEnumerable<T> data = dbContext.Set<T>().Where(condition);
+            return data;
+        }
         #endregion
     }
 }

YiSha.Data/YiSha.Data.Repository/Repository.cs

@@ -177,6 +177,18 @@ public async Task<IEnumerable<T>> FindList<T>(string strSql, DbParameter[] dbPar
             pagination.TotalCount = data.total;
             return data.Item2;
         }
+
+
+        /// <summary>
+        /// Linq查询
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="condition"></param>
+        /// <returns></returns>
+        public IEnumerable<T> FindListLinq<T>(Expression<Func<T, bool>> condition) where T : class, new()
+        {
+            return db.FindListLinq<T>(condition);
+        }
         #endregion
 
         #region 数据源 查询

YiSha.Data/YiSha.Data/IDatabase.cs

@@ -73,6 +73,14 @@ public interface IDatabase
         Task<object> FindObject(string strSql);
         Task<object> FindObject(string strSql, DbParameter[] dbParameter);
         Task<T> FindObject<T>(string strSql) where T : class;
+
+        /// <summary>
+        /// 惰性加载查询
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="condition"></param>
+        /// <returns></returns>
+        IEnumerable<T> FindListLinq<T>(Expression<Func<T, bool>> condition) where T : class, new();
         #endregion
     }
 }

YiSha.Util/YiSha.Util/Model/Pagination.cs

@@ -56,5 +56,10 @@ public int TotalPage
                 }
             }
         }
+
+        /// <summary>
+        /// 需跳过的行数
+        /// </summary>
+        public int SkipCount => PageSize * (PageIndex > 0 ? PageIndex - 1 : 0);
     }
 }

YiSha.Web/YiSha.Admin.Web/appsettings.json

@@ -13,8 +13,8 @@
     "ApiSite": "http://localhost:5001", // Api地址，例如可以上传文件到Api
     "VirtualDirectory": "/admin", // 虚拟目录 
 
-    "DBProvider": "SqlServer",
-    "DBConnectionString": "Server=localhost;User Id=sa;Password=hmAdmin@;Database=YsData;",
+    "DBProvider": "MySql",
+    "DBConnectionString": "server=localhost;database=carservicesdbtest;user=test;password=Abcd!2345;port=3306;pooling=true;max pool size=20;persist security info=True;charset=utf8;",
     "DBCommandTimeout": 180, // 数据库超时时间，单位秒
     "DBBackup": "", // 数据库备份路径