333

MyCode.Project.Infrastructure/Common/AutoMapperHelper.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using AutoMapper;
+
+namespace MyCode.Project.Infrastructure.Common
+{
+    public class AutoMapperHelper
+    {
+
+        /// <summary>
+        /// 映射单个实体
+        /// </summary>
+        /// <typeparam name="T">目标对象</typeparam>
+        /// <typeparam name="F">数据来源对象</typeparam>
+        /// <param name="fromData">数据原变量</param>
+        /// <returns></returns>
+        public static T AutoMappToSingle<T,F>(F fromData)
+        {
+            var datatype = fromData.GetType();
+            Mapper.Initialize(x => {
+                x.CreateMap<F,T> ();
+            });
+           var  result = Mapper.Map<T>(fromData);
+            return result;
+        }
+
+
+        /// <summary>
+        /// 映射LIST
+        /// </summary>
+        /// <typeparam name="T">目标对象List</typeparam>
+        /// <typeparam name="F">数据来源对象List</typeparam>
+        /// <param name="fromData">数据原变量List</param>
+        /// <returns></returns>
+        public static List<T> AutoMappToList<T, F>(List<F> fromData)
+        {
+            var datatype = fromData.GetType();
+            Mapper.Initialize(x => {
+                x.CreateMap<F, T>();
+            });
+            var result = Mapper.Map<List<T>>(fromData);
+            return result;
+        }
+
+        /// <summary>
+        /// 将返回的实体中的指定类型的NULL值转为 指定的值 
+        /// </summary>
+        /// <typeparam name="T">要修改的实体的类型</typeparam>
+        /// <typeparam name="H">要指定的值的类型</typeparam>
+        /// <param name="ToEntity">要修改的实体</param>
+        /// <param name="NewValue">要指定的值</param>        
+        public static void ClearNullOfEntity<T, H>(T ToEntity, H NewValue) where T : new()
+        {
+
+            if (ToEntity != null)
+            {
+                PropertyInfo[] proFEntity = ToEntity.GetType().GetProperties();
+                foreach (PropertyInfo pi in proFEntity)
+                {
+                    string NewValueTypeName = NewValue.GetType().Name;
+                    string PiTypeName = pi.PropertyType.Name;
+                    var item = pi.PropertyType.GenericTypeArguments.FirstOrDefault();
+                    if (NewValue.GetType().Name.Equals(pi.PropertyType.Name) || (item != null && item.Name == NewValueTypeName))
+                    {
+                        var value = pi.GetValue(ToEntity);
+                        if (value == null)
+                        {
+                            try
+                            {
+                                pi.SetValue(ToEntity, NewValue, null);
+                            }
+                            catch
+                            {
+
+                            }
+                        }
+                    }
+
+
+
+                }
+            }
+
+        }
+    }
+}