using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Reflection;namespace ReligionServer.util {public class BeanUtil {/// <summary>/// 两个对象的相同属性复制， 会将Source中与Target属性名相同的属性赋值（且属性类型相同）, target中别的属性值不会被破坏/// </summary>/// <param name="source"></param>/// <param name="target"></param>/// <returns></returns>public static Object PropCopy(Object source, Object target) {//在后来的修改之后, 返回List, 且包含当前类和除开Object的所有父类的属性//List<FieldInfo> sourceFields = ReflectionUtil.GetFileldS(source.GetType());//List<FieldInfo> targetFields = ReflectionUtil.GetFileldS(target.GetType());foreach (FieldInfo sourceItem in ReflectionUtil.GetFileldS(source.GetType())) {foreach (FieldInfo targetItem in ReflectionUtil.GetFileldS(target.GetType())) {if (sourceItem.Name.Equals(targetItem.Name) && sourceItem.FieldType.Equals(targetItem.FieldType)) {//targetItem.SetValue(target, sourceItem.GetValue(source).ToString().Trim());//可能出现空指针, 字段的类型也应该保持一致, 所以不应该ToString 和 Trim
                        targetItem.SetValue(target, sourceItem.GetValue(source));break;}}}return target;}/// <summary>/// 两个对象的相同属性复制， 会将Source中与Target属性名相同的属性赋值（且属性类型相同）, target中别的属性值不会被破坏/// 如果属性值相同的则不进行复制, withOutNull参数为true, 那么source中为null或者为""的属性则不复制,/// 暂时没有测试/// </summary>/// <param name="source"></param>/// <param name="target"></param>/// <param name="withOutNull"></param>/// <returns></returns>public static Object PropCopyWithOutSame(Object source, Object target, bool withOutNull) {//在后来的修改之后, 返回List, 且包含当前类和除开Object的所有父类的属性//List<FieldInfo> sourceFields = ReflectionUtil.GetFileldS(source.GetType());//List<FieldInfo> targetFields = ReflectionUtil.GetFileldS(target.GetType());foreach (FieldInfo sourceItem in ReflectionUtil.GetFileldS(source.GetType())) {foreach (FieldInfo targetItem in ReflectionUtil.GetFileldS(target.GetType())) {if (sourceItem.Name.Equals(targetItem.Name) && sourceItem.FieldType.Equals(targetItem.FieldType)) {//targetItem.SetValue(target, sourceItem.GetValue(source).ToString().Trim());//可能出现空指针, 字段的类型也应该保持一致, 所以不应该ToString 和 Trimif (sourceItem.GetValue(source) != targetItem.GetValue(target)) {//这里判断相等不能使用Equals, 因为很有可能出现空指针异常if (withOutNull) {bool flag = IsEmpty(sourceItem.FieldType, sourceItem.GetValue(source));if (!flag) {targetItem.SetValue(target, sourceItem.GetValue(source));}} else {targetItem.SetValue(target, sourceItem.GetValue(source));}break;}}}}return target;}public static bool IsEmpty(Type type, Object value) {bool flag = true;if (type.Equals(typeof(DateTime))) {flag = value == null;} else if (type.Equals(typeof(MongoDB.Bson.BsonValue))) {flag = MongoDB.Bson.BsonValue.Create(value) == null;} else if (type.Equals(typeof(String))) {flag = CommonUtil.IsEmpty(Convert.ToString(value));} else {flag = value == null;}return flag;}}
}