67 lines
2.2 KiB
C#
67 lines
2.2 KiB
C#
using Furion.FriendlyException;
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using Mapster;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Text;
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using System.Threading.Tasks;
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namespace Myshipping.Application.Helper
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{
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public static class MapsterExtHelper
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{
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/// <summary>
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/// 动态获取属性对应关系
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/// </summary>
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/// <typeparam name="TDto"></typeparam>
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/// <typeparam name="TEntity"></typeparam>
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/// <param name="property">字段代码</param>
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/// <returns>返回对应的字段代码</returns>
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public static string GetAdaptProperty<TDto, TEntity>(string property)
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where TDto : class
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where TEntity : class
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{
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try
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{
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var adapt = default(TDto).BuildAdapter().CreateMapExpression<TEntity>().Body as BlockExpression;
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var tryInfo = adapt.Expressions.FirstOrDefault(a => a.NodeType.ToString() == "Try");
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if (tryInfo == null)
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throw Oops.Oh($"{nameof(GetAdaptProperty)} 读取TRY异常");
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var block = ((TryExpression)tryInfo).Body as BlockExpression;
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if (block == null)
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throw Oops.Oh($"{nameof(GetAdaptProperty)} 读取BlockExpression异常");
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var blockNode = block.Expressions.FirstOrDefault(t => t.NodeType.ToString() == "Block");
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var member = (blockNode as BlockExpression).Expressions.Where(t => {
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var right = ((t as BinaryExpression).Right as MemberExpression);
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if (right == null)
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return false;
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var currInfo = right.Member;
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return currInfo.Name.Equals(property, StringComparison.OrdinalIgnoreCase);
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}).FirstOrDefault();
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if (member != null)
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return ((member as BinaryExpression).Left as MemberExpression).Member.Name;
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}
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catch (Exception ex)
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{
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throw Oops.Oh($"{nameof(GetAdaptProperty)} 读取BlockExpression异常");
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}
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return string.Empty;
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}
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}
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}
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