public static void GetNodeAttribute(this string xmlFile, XmlNodeDataAttribute parentNode, ChildAttributeInNodeEvent attEvent)
{
List <XmlNodeDataAttribute> atts = new List <XmlNodeDataAttribute>();
XmlDocument doc = new XmlDocument();
doc.Load(xmlFile);
string nodeFormat = "[@{0}='{1}']";
XmlNode node = doc.SelectSingleNode(parentNode.NodeName + string.Format(nodeFormat, parentNode.NodeKeyName, parentNode.NodeKeyValue));
if (node == null)
{//未找到节点
return;
}
XmlNodeList targets = node.ChildNodes;//全部子节点
foreach (XmlNode item in targets)
{
if (item.NodeType == XmlNodeType.Comment || item.NodeType == XmlNodeType.Text)
{
continue;
}
XmlElement ele = (XmlElement)item;
attEvent(ele.Attributes);
}
}
public static T GetNodeSpecialeAttribute <T>(this string xmlFile, XmlNodeDataAttribute parentNode, XmlNodeDataAttribute nodeAttribute) where T : class
{
string[] att = new string[] { nodeAttribute.NodeKeyName, nodeAttribute.NodeKeyValue };
T data = System.Activator.CreateInstance <T>();
Type objT = typeof(T);
GetNodeAttribute(xmlFile, parentNode, new ChildAttributeInNodeEvent(atts =>
{ //读取每一项（属性）的值
XmlAttribute obj = atts[att[0]];
if (obj == null)
{
return;
}
XmlAttribute recValue = atts[att[1]];
if (recValue == null || string.IsNullOrEmpty(recValue.Value))
{
return;
}
string property = obj.Value;
PropertyInfo pi = objT.GetProperty(property);
if (pi == null)
{
return;
}
string value = recValue.Value.ToLower().Trim();
if (pi.PropertyType.Name == typeof(bool).Name)
{ //xml中节点存储bool类型的内容不能直接转换为bool
// 存的数据可能情形 0/1 ，false/true
string[] arr = new string[] { "false", "true" };
if (arr.Contains(value))
{ //数值
pi.SetValue(data, (value != "true" ? true : false), null);
return;
}
else
{
pi.SetValue(data, (value == "1" ? true : false), null);
return;
}
}
pi.SetValue(data, Convert.ChangeType(value, pi.PropertyType), null);
}));
return(data);
}
public static void UpdateXmlNode <T>(this string xmlFile, T data, XmlNodeDataAttribute parentNode, XmlNodeDataAttribute nodeAttribute) where T : class
{
string[] xmlAtt = new string[] { nodeAttribute.NodeKeyName, nodeAttribute.NodeKeyValue };
Type obj = typeof(T);
PropertyInfo[] pis = obj.GetProperties();
XmlDocument doc = new XmlDocument();
doc.Load(xmlFile);
string nodeFormat = "[@{0}='{1}']";
string appItem = string.Format(nodeFormat, parentNode.NodeKeyName, parentNode.NodeKeyValue);
XmlNode node = doc.SelectSingleNode(parentNode.NodeName + appItem);
//读取xml
foreach (PropertyInfo item in pis)
{
//首先查看特性是否存储
string rec = item.Name;
object appValue = item.GetValue(data, null);
string appValueStr = appValue == null ? string.Empty : appValue.ToString();
XmlNode row = node.SelectSingleNode(nodeAttribute.NodeName + string.Format(nodeFormat, nodeAttribute.NodeKeyName, rec));//是否有这一属性
if (row == null)
{
XmlNode xm = doc.CreateNode("element", nodeAttribute.NodeName, string.Empty);
XmlElement ele = (XmlElement)xm;
ele.SetAttribute(nodeAttribute.NodeKeyName, rec);
ele.SetAttribute(nodeAttribute.NodeKeyValue, appValueStr);
node.AppendChild(xm);
}
else
{//更改这一行配置的值
XmlNode newNode = row.CloneNode(true);
XmlElement ele = (XmlElement)newNode;
ele.SetAttribute(nodeAttribute.NodeKeyName, rec);
ele.SetAttribute(nodeAttribute.NodeKeyValue, appValueStr);
node.ReplaceChild(newNode, row);//节点更新
}
}
doc.Save(xmlFile);
}
/// <summary>
/// 获取节点指定关键字
/// </summary>
/// <param name="xmlFile"></param>
/// <param name="parentNode">节点所属父项</param>
/// <param name="nodeAttribute">节点项特性内容</param>
/// <returns></returns>
public static Dictionary <string, string> GetNodeSpecialeAttribute(this string xmlFile, XmlNodeDataAttribute parentNode, XmlNodeDataAttribute nodeAttribute)
{
string[] att = new string[] { nodeAttribute.NodeKeyName, nodeAttribute.NodeKeyValue };
Dictionary <string, string> cfg = new Dictionary <string, string>();
GetNodeAttribute(xmlFile, parentNode, new ChildAttributeInNodeEvent(atts =>
{
XmlAttribute rec = atts[att[0]];
if (rec == null)
{
return;
}
XmlAttribute recValue = atts[att[1]];
if (!string.IsNullOrEmpty(rec.Value) && !cfg.ContainsKey(rec.Value))
{
cfg.Add(rec.Value, recValue == null?string.Empty:recValue.Value);
}
}));
return(cfg);
}
public static void UpdateConfigNode(this string xmlFile, Dictionary <string, string> obj, XmlNodeDataAttribute entityBelongNode, XmlNodeDataAttribute dictBelongNode)
{
XmlDocument doc = new XmlDocument();
doc.Load(xmlFile);
//查找目标节点
XmlNode parent = doc.SelectSingleNode(entityBelongNode.NodeName + "[@" + entityBelongNode.NodeKeyName + "='" + entityBelongNode.NodeKeyValue + "']");
//查找目标
string nodeFormat = "[@{0}='{1}']";
foreach (var item in obj)
{
XmlNode node = parent.SelectSingleNode(dictBelongNode.NodeName + string.Format(nodeFormat, dictBelongNode.NodeKeyName, item.Key));
if (node == null)
{ //如果没有这个节点则需要增加
XmlNode xm = doc.CreateNode("element", dictBelongNode.NodeName, string.Empty);
XmlElement ele = (XmlElement)xm;
ele.SetAttribute(dictBelongNode.NodeKeyName, item.Key);
ele.SetAttribute(dictBelongNode.NodeKeyValue, item.Value);
parent.AppendChild(xm);
}
else
{
XmlNode newNode = node.CloneNode(true);
XmlElement ele = (XmlElement)newNode;
ele.SetAttribute(dictBelongNode.NodeKeyName, item.Key);
ele.SetAttribute(dictBelongNode.NodeKeyValue, item.Value);
parent.ReplaceChild(newNode, node);//节点更新
}
}
doc.Save(xmlFile);
}