c# - 将 xml 字符串反序列化为对象

Question

我写这个方法是为了将 xml 字符串转换成对象:

private object Deserializer(Type type)
{
    object instance = null;
    try
    {
        XmlSerializer xmlSerializer = new XmlSerializer(type);
        using (StringReader stringreader = new StringReader(somestring))
        {
            instance = (type)xmlSerializer.Deserialize(stringreader);
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }

    return instance;
} 

但是在这里:

instance = (type)xmlSerializer.Deserialize(stringreader);

此错误显示:找不到类型或命名空间名称“type”(是否缺少 using 指令或程序集引用？)我该如何解决？

Answer 1

您不能转换为“类型”，您需要像这样指定确切的类型(对于字符串):

(string)xmlSerializer.Deserialize(stringreader);

也许可以考虑使用这样的通用函数:

private T Deserializer<T>()
{
    T instance = null;
    try
    {
        var xmlSerializer = new XmlSerializer(typeof(T));
        using (var stringreader = new StringReader(somestring))
        {
            instance = (T)xmlSerializer.Deserialize(stringreader);
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }

    return instance;
} 

然后像这样调用函数:

var instance = xmlSerializer.Deserialize<SomeType>();

如果你只想在运行时指定类型，你可以使用:

instance = Convert.ChangeType(xmlSerializer.Deserialize(stringreader), type);