xml字符串 提取属性 JAVA xml字符串解析成对象

string strXml = "<?xml version=\"1.0\" encoding=\"utf-8\"?><Root><Users><User UserId=\"1\" UserName=\"王二\"/><User UserId=\"2\" UserName=\"张三\"/></Users></Root>";
            var model = this.GetXmlObject(strXml, typeof(Root)) as Root;
//<?xml version="1.0" encoding="utf-8"?>
/// <summary>
/// xml标签反序列化为对象
/// </summary>
/// <param name="xml">xml格式字符串</param>
/// <param name="type">转换类型</param>
/// <returns>返回xml标签反序列化object对象</returns>
public object GetXmlObject(string xml, Type type)
{
    try
　　{
　　　　using (StringReader rdr = new StringReader(xml))
　　　　{
　　　　　　XmlSerializer serializer = new XmlSerializer(type);
　　　　　　return serializer.Deserialize(rdr);
　　　　}
　　}
　　catch (Exception)
　　{
　　　　return null;
　　}
}
[Serializable]
[XmlRoot("Root")]
public class Root
{
    [XmlArray("Users")]
    [XmlArrayItem("User")]
    public List<User> Users { get; set; }

    //[XmlElement("User")]
}

[Serializable]
public class User
{
    [XmlAttribute("UserId")]
    public string UserId { get; set; }

    [XmlAttribute("UserName")]
    public string UserName { get; set; }
}