using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml; using System.IO;
using System.Windows.Forms; namespace MyVertion
{
class XMLOperate
{
private string m_configPath = Application.StartupPath + @"\DatabaseConfig.xml";
private string vertion = "1.0";
private string encoding = "UTF-8";
private string standalone = "no";
private string comment = "Database Config"; private XmlDocument xmlDoc = null; private static volatile XMLOperate XmlOp = null;
public static XMLOperate GetInstance()
{
if (null == XmlOp)
{
XmlOp = new XMLOperate(null);
}
return XmlOp;
} public string _Vertion
{
set
{
vertion = value;
} get
{
return vertion;
}
} public string _Encoding
{
set
{
encoding = value;
} get
{
return encoding;
}
} public string _Standalone
{
set
{
standalone = value;
} get
{
return standalone;
}
} public string _Comment
{
set
{
comment = value;
} get
{
return comment;
}
} public string _ConfigPath
{
get
{
return m_configPath;
}
} #region 构造函数
public XMLOperate(string xmlPath)
{
if (!string.IsNullOrEmpty(xmlPath))
{
m_configPath = xmlPath;
}
xmlDoc = new XmlDocument();
}
#endregion //创建configxml文件
public void CreateConfigXml()
{
xmlDoc.CreateXmlDeclaration(vertion, encoding, standalone);
xmlDoc.CreateComment(comment); XmlElement rootEle = xmlDoc.CreateElement("Connection");
xmlDoc.AppendChild(rootEle); XmlElement ele = xmlDoc.CreateElement("Server");
rootEle.AppendChild(ele);
ele = xmlDoc.CreateElement("Instance");
rootEle.AppendChild(ele);
ele = xmlDoc.CreateElement("Database");
rootEle.AppendChild(ele);
ele = xmlDoc.CreateElement("UserName");
rootEle.AppendChild(ele);
//ele = xmlDoc.CreateElement("Password");
//rootEle.AppendChild(ele);
ele = xmlDoc.CreateElement("Vertion");
rootEle.AppendChild(ele); xmlDoc.Save(m_configPath); //加入XML的声明段落,<?xml version="1.0" encoding="utf-8"?>
// xmlDoc.LoadXml(@"<?xml version=""1.0"" encoding=""utf-8""?>
// <Connection>
// </Connection>");
// XmlNode root = xmlDoc.SelectSingleNode("Connection");
} //检查配置文件是否存在
public bool IsExist()
{
return File.Exists(m_configPath);
} //保存、更改xml文件
public bool UpdateConfigInfo(string server, string instance, string database, string username, string password, string version)
{
if (!IsExist())
{
return false;
}
XmlNode root = xmlDoc.SelectSingleNode("Connection");
XmlNode xnd = root.SelectSingleNode("Server");
xnd.InnerText = server;
xnd = root.SelectSingleNode("Instance");
xnd.InnerText = instance;
xnd = root.SelectSingleNode("Database");
xnd.InnerText = database;
xnd = root.SelectSingleNode("UserName");
xnd.InnerText = username;
//xnd = root.SelectSingleNode("Password");
//xnd.InnerText = password;
xnd = root.SelectSingleNode("Vertion");
if (!string.IsNullOrEmpty(version))
{
xnd.InnerText = version;
} xmlDoc.Save(m_configPath);
return true;
} /// <summary>
/// 读配置文件
/// </summary>
/// <returns></returns>
public string ReadConfigInfo(string item)
{
if (!IsExist())
{
//MessageBox.Show("配置文件不存在！", "提示：", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return null;
}
else
{
xmlDoc.Load(m_configPath);
XmlNode root = xmlDoc.SelectSingleNode("Connection");
XmlNode xnd = root.SelectSingleNode(item);
return xnd.InnerText;
} } }
}
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