学步园

.xml文件格式如下

<?xml version="1.0" encoding="utf-8"?><br /> <!DOCTYPE DataAccess[]><br /> <DataAccess><br /> <appSettings><br /> <add key="StartTime" value="9" /><br /> <add key="EndTime" value="6" /><br /> </appSettings><br /> </DataAccess>

C#初始化

private static XmlDocument xmlIAUConfig;</p> <p>static ConfigManager()<br /> {<br /> xmlIAUConfig = new XmlDocument();</p> <p> XMLPath = Assembly.GetExecutingAssembly().CodeBase;<br /> Int32 i = XMLPath.LastIndexOf("/");<br /> XMLPath = XMLPath.Remove(i);<br /> XMLPath = XMLPath + @"/abc.xml";<br /> xmlIAUConfig.Load(XMLPath);<br /> }

获取某个节点的值

public static String GetValue(String key)<br /> {<br /> xmlIAUConfig.Load(XMLPath);<br /> String value;<br /> String path = @"//DataAccess/appSettings/add[@key='" + key + "']";<br /> XmlNodeList xmlAdds = xmlIAUConfig.SelectNodes(path);</p> <p> if (xmlAdds.Count == 1)<br /> {<br /> XmlElement xmlAdd = (XmlElement)xmlAdds[0];</p> <p> value = xmlAdd.GetAttribute("value");<br /> }<br /> else<br /> {<br /> throw new Exception("IAUConfig配置信息设置错误：键值为" + key + "的元素不等于1");<br /> }</p> <p> return value;<br /> }

修改某个节点为谋值

public static void SavaConfig(string strKey, string strValue)<br /> {<br /> XmlDocument XMLDoc = new XmlDocument();<br /> XMLDoc.Load("abc.xml");<br /> XmlNodeList list = XMLDoc.GetElementsByTagName("add");</p> <p> for (int i = 0; i < list.Count; i++)<br /> {<br /> if (list[i].Attributes[0].Value == strKey)<br /> {<br /> list[i].Attributes[1].Value = strValue;<br /> }<br /> }<br /> StreamWriter swriter = new StreamWriter("abc.xml");<br /> XmlTextWriter xw = new XmlTextWriter(swriter);<br /> xw.Formatting = Formatting.Indented;<br /> XMLDoc.WriteTo(xw);<br /> xw.Close();<br /> swriter.Close();<br /> }