欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

C# 将object对象转换为实体对象

程序员文章站 2023-02-18 19:21:38
C# 将object对象转换为实体对象.代码如下: 调用时: 是不是很简单? ......

c# 将object对象转换为实体对象.代码如下:

/// <summary>
/// 将object对象转换为实体对象
/// </summary>
/// <typeparam name="t">实体对象类名</typeparam>
/// <param name="asobject">object对象</param>
/// <returns></returns>
private t convertobject<t>(object asobject) where t : new()
{
    //创建实体对象实例
    var t = activator.createinstance<t>();
    if (asobject != null)
    {
        type type = asobject.gettype();
        //遍历实体对象属性
        foreach (var info in typeof(t).getproperties())
        {
            object obj = null;
            //取得object对象中此属性的值
            var val = type.getproperty(info.name)?.getvalue(asobject
            if (val != null)
            {
                //非泛型
                if (!info.propertytype.isgenerictype)
                    obj = convert.changetype(val, info.propertytype)
                else//泛型nullable<>
                {
                    type generictypedefinition = info.propertytype.getgenerictypedefinition();
                    if (generictypedefinition == typeof(nullable<>))
                    {
                        obj = convert.changetype(val, nullable.getunderlyingtype(info.propertytype));
                    }
                }
                info.setvalue(t, obj, null);
            }
        }
    }
    return t;
}

调用时:

/// <summary>
/// test
/// </summary>
public void test()
{
    var obj = new {
        id=1,name="张三",sex=1,age=22
    };
    //转换
    var usermodel = convertobject<user>(obj);
}

/// <summary>
/// 用户
/// </summary>
public class user
{
    /// <summary>
    /// 编号
    /// </summary>
    public int id { set; get; }
    /// <summary>
    /// 姓名
    /// </summary>
    public string name { set; get; }
    /// <summary>
    /// 性别
    /// </summary>
    public int sex { set; get; }
    /// <summary>
    /// 年龄
    /// </summary>
    public int age { set; get; }
}

是不是很简单?