将源实体转换到空的实体类中

Posted 2020-11-19 mact

这是一个封装的实体转换类

应用场景一张主表一张副表，副表为主表的备份表

//将源实体转换到空的实体类中  调用

主表实体类 entity = new  主表实体类();

EntityCoverter.Covert<主表实体类, 副表实体类>(entity);

//将源实体转换到非空的实体中 调用

主表实体类 entity = new  主表实体类();

 副表实体类 hazardInfo = new   副表实体类();

  EntityCoverter.Covert<主表实体类 , 副表实体类>(entity, hazardInfo);

/// <summary>
/// 实体转换类
/// </summary>
public class EntityCoverter
{
    /// <summary>
    /// 将源实体转换到空的实体类中
    /// </summary>
    /// <typeparam name="T1"></typeparam>
    /// <typeparam name="T2"></typeparam>
    /// <param name="source"></param>
    /// <returns></returns>
    public static T2 Covert<T1, T2>(T1 source)
    {
        T2 result = default(T2);

        PropertyInfo[] pi = typeof(T2).GetProperties();

        PropertyInfo[] pi1 = typeof(T1).GetProperties();

        result = Activator.CreateInstance<T2>();

        for (int i = 0; i < pi.Length; i++)
        {
            PropertyInfo temp = pi1.Where(t => t.Name == pi[i].Name).FirstOrDefault();
            if (temp != null)
            {
                try
                {
                    pi[i].SetValue(result, temp.GetValue(source, null), null);
                }
                catch (Exception ex)
                {

                }
            }
        }
        return result;
    }

    /// <summary>
    /// 将源实体转换到非空的实体中
    /// </summary>
    /// <typeparam name="T1"></typeparam>
    /// <typeparam name="T2"></typeparam>
    /// <param name="source"></param>
    /// <param name="destination"></param>
    /// <returns></returns>
    public static T2 Covert<T1, T2>(T1 source, T2 destination)
    {
        PropertyInfo[] pi = typeof(T2).GetProperties();

        PropertyInfo[] pi1 = typeof(T1).GetProperties();

        for (int i = 0; i < pi.Length; i++)
        {
            PropertyInfo temp = pi1.Where(t => t.Name == pi[i].Name).FirstOrDefault();
            if (temp != null)
            {
                try
                {
                    pi[i].SetValue(destination, temp.GetValue(source, null), null);
                }
                catch
                {
                }
            }
        }
        return destination;
    }
}