实体类与xml互相转换通用

最新推荐文章于 2021-10-23 14:58:32 发布

iteye_6481

最新推荐文章于 2021-10-23 14:58:32 发布

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本文介绍如何将实体类序列化为XML并从XML反序列化为实体类，包括XML转实体类和实体类转XML的具体实现。

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// <summary>

/// 实体类序列化成xml
/// </summary>
/// <param name="enitities">实体.</param>
/// <param name="headtag">节点名称</param>
/// <returns></returns>
public static string ObjListToXml<T>(List<T> enitities, string headtag)
{
StringBuilder sb = new StringBuilder();
PropertyInfo[] propinfos = null;
sb.AppendLine("<?xml version=/"1.0/" encoding=/"utf-8/"?>");
sb.AppendLine("<"+headtag+">");
foreach (T obj in enitities)
{
//初始化propertyinfo
if (propinfos == null)
{
Type objtype = obj.GetType();
propinfos = objtype.GetProperties();
}

sb.AppendLine("<item>");
foreach (PropertyInfo propinfo in propinfos)
{
sb.Append("<");
sb.Append(propinfo.Name);
sb.Append(">");
sb.Append(propinfo.GetValue(obj, null));
sb.Append("</");
sb.Append(propinfo.Name);
sb.AppendLine(">");
}
sb.AppendLine("</item>");
}
sb.AppendLine("</" + headtag + ">");
return sb.ToString();
}

xml转行为实体类

/// <summary>
/// xml文件转化为实体类列表
/// </summary>
/// <typeparam name="T">实体名称</typeparam>
/// <param name="xml">您的xml文件</param>
/// <param name="headtag">xml头文件</param>
/// <returns>实体列表</returns>
public static List<T> XmlToObjList<T>(string xml, string headtag)
where T : new()
{

List<T> list = new List<T>();
XmlDocument doc = new XmlDocument();
PropertyInfo[] propinfos = null;
doc.LoadXml(xml);
//XmlNodeList nodelist = doc.SelectNodes(headtag);
XmlNodeList nodelist = doc.GetElementsByTagName(headtag);
foreach (XmlNode node in nodelist)
{
T entity = new T();
//初始化propertyinfo
if (propinfos == null)
{
Type objtype = entity.GetType();
propinfos = objtype.GetProperties();
}
//填充entity类的属性
foreach (PropertyInfo propinfo in propinfos)
{
//实体类字段首字母变成小写的
string name = propinfo.Name.Substring(0, 1) + propinfo.Name.Substring(1, propinfo.Name.Length - 1);
XmlNode cnode = node.SelectSingleNode(name);
string v = cnode.InnerText;
if (v != null)
propinfo.SetValue(entity, Convert.ChangeType(v, propinfo.PropertyType), null);
}
list.Add(entity);