C# XML讀寫執行個體

標籤：

一、使用System.Xml

執行個體：完成如下格式設定檔的讀寫操作：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE doc[]><root>  <DatabaseInfo>    <HostName>127.0.0.1</HostName>    <DatabaseName>orcl</DatabaseName>    <UserName>scott</UserName>    <Password>scott</Password>  </DatabaseInfo></root>

實現代碼：

//讀操作public static string getConectStringXml()        {            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(DBConfigFilePath); //載入XML文檔            string xpath = "/root";            XmlNode xmlNode = xmlDoc.SelectSingleNode(xpath);            if (xmlNode != null)            {                xmlNode = xmlNode.SelectSingleNode("/root/DatabaseInfo");                var tst = xmlNode.SelectSingleNode("/root/DatabaseInfo/HostName");                string hostName = tst.InnerXml;                string sid = xmlNode.SelectSingleNode("/root/DatabaseInfo/DatabaseName").InnerXml;                string uid = xmlNode.SelectSingleNode("/root/DatabaseInfo/UserName").InnerXml;                string pwd = xmlNode.SelectSingleNode("/root/DatabaseInfo/Password").InnerXml;                StringBuilder connectStr = new StringBuilder();                connectStr.Append("Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=");                connectStr.Append(hostName);                connectStr.Append(")(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=");                connectStr.Append(sid);                connectStr.Append(")));User Id=");                connectStr.Append(uid);                connectStr.Append("; Password =");                connectStr.Append(pwd);                connectStr.Append(";Unicode=True");                connectionString = connectStr.ToString();            }            return connectionString;        }//寫操作 public static void setConectStringXml(string hostName,string sid,string uid,string pwd)        {            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(DBConfigFilePath); //載入XML文檔            string xpath = "/root";            XmlNode xmlNode = xmlDoc.SelectSingleNode(xpath);            if (xmlNode != null)            {                xmlNode = xmlNode.SelectSingleNode("/root/DatabaseInfo");                var subNode = xmlNode.SelectSingleNode("/root/DatabaseInfo/HostName");                subNode.InnerXml = hostName;                subNode = xmlNode.SelectSingleNode("/root/DatabaseInfo/DatabaseName");                subNode.InnerXml = sid;                subNode = xmlNode.SelectSingleNode("/root/DatabaseInfo/UserName");                subNode.InnerXml = uid;                subNode = xmlNode.SelectSingleNode("/root/DatabaseInfo/Password");                subNode.InnerXml = pwd;                xmlDoc.Save(DBConfigFilePath);            }        }

　　

C# XML讀寫執行個體