类名：XML
/// 1.创建XML文档 /// 2.在根节点下增加子元素 /// 3.在元素下增加子元素 /// 4.获取类型为制定值的一组节点 /// 5.抓取网页上的xml文档赋值给XmlDocument对象 /// 6.获取服务器上指定文件的xml文件内容 /// 7.读取xml直接返回DataSet /// 8.读取Xml返回一个经排序或筛选后的DataView /// 9.向Xml文件插入一行数据 /// 10.更行符合条件的一条Xml记录 /// 11.通过删除DataSet中iDeleteRow这一行,然后重写Xml以实现删除指定行 /// 12.删除strColumn列中值为ColumnValue的行 /// 13.删除所有行 /// 14.返回完整路径 using System; using System.Collections.Generic; using System.Text; using System.Xml; using System.IO; using System.Data; using System.Data.SqlClient; using System.Net; namespace Tools { class XML { /// <summary> /// 创建XML文档 /// </summary> /// <param name="name">根节点名称</param> /// <param name="type">根节点的一个属性值</param> /// <returns></returns> /// moss中调用方法：创建的文件如果要存到moss的文档库中,则： /// XmlDocument doc = XmlOperate.CreateXmlDocument("project", "T"); /// 在此可嵌入增加子节点方法,如AddTaskNode(taskObj, ref doc); .. /// byte[] fileContent = Encoding.UTF8.GetBytes(doc.OuterXml); /// folder.Files.Add("name.xml", fileContent, true); /// web.Update(); /// .net中调用方法：写入文件中,则： /// document = XmlOperate.CreateXmlDocument("sex", "sexy"); /// document.Save("c:/bookstore.xml"); public static XmlDocument CreateXmlDocument(string name, string type) { XmlDocument doc = null; XmlElement rootEle = null; try { doc = new XmlDocument(); doc.LoadXml("<" + name + "/>"); rootEle = doc.DocumentElement; rootEle.SetAttribute("type", type); } catch (Exception er) { throw er; } return doc; } /// <summary> /// 在根节点下增加子元素 /// </summary> /// <param name="document"></param> /// <param name="nodeName"></param> /// <param name="type"></param> /// 调用方法： /// document = xmloper.CreateXmlDocument("animal", "carnivore"); /// XmlOperate.AddNewNode1(ref document, "carnivore", "high"); public static void AddNewNode1(ref XmlDocument document, string nodeName, string type) { XmlElement taskEle = null; try { taskEle = document.CreateElement(nodeName); taskEle.SetAttribute("type", type); document.DocumentElement.AppendChild((XmlNode)taskEle); } catch (Exception ex) { throw ex; } } /// <summary> /// 在元素下增加子元素 /// </summary> /// <param name="element"></param> /// <param name="nodeName"></param> /// <param name="type"></param> /// 调用方法： /// XmlDocument document = new XmlDocument(); /// 先取到相应的元素,然后调用该方法在该元素下增加子元素 /// XmlElement root = (XmlElement)document.SelectSingleNode("//animal/third"); /// XmlOperate.AddNewNode2(ref root,"thaw","boost investor confidence"); ///注意上面的"//animal/third"也可换成"workflow[@type='T' and @isSpecial='1']"这种形式用来获取带有相应属性的元素 public static void AddNewNode2(ref XmlElement element, string nodeName, string type) { XmlElement taskEle = null; try { taskEle = element.OwnerDocument.CreateElement(nodeName); taskEle.SetAttribute("type", type); element.AppendChild((XmlNode)taskEle); } catch (Exception ex) { throw ex; } } /// <summary> /// 获取类型为制定值的一组节点 /// </summary> /// <param name="type">类型值。E.G.workflow[@type='T' and @isSpecial='1']</param> /// <returns></returns> /// 注意：返回的 XmlNodeList 类型是个类似于arraylist的类型,所以要得到它的值只能遍历 public static XmlNodeList GetDesiredNode(string type) { XmlDocument document = new XmlDocument(); return document.SelectNodes("type"); } /// <summary> /// 抓取网页上的xml文档赋值给XmlDocument对象 /// </summary> /// <param name="url">网页的url（网页的内容必须是xml格式的）</param> /// <returns></returns> public static XmlDocument GetXMLDocumentFromWebPage(string url) { HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url); myRequest.Method = "POST"; myRequest.ContentType = "application/x-www-form-urlencoded"; myRequest.ContentLength = 0; // Get response HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse(); StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default); string content = reader.ReadToEnd(); XmlDocument document = new XmlDocument(); document.LoadXml(content); return document; } /// <summary> /// 获取服务器上指定文件的xml文件内容 /// </summary> /// <param name="location"></param> /// <returns></returns> public static string GetXMLFile(string location) { XmlDocument document = new XmlDocument(); document.Load(@"G: tt.xml"); return document.InnerXml; } //获取sharepoint中指定文件的内容 //public string GetProjectWorkflowUrl(SPFile file) //{ // byte[] content = file.OpenBinary(); // contentStr = Encoding.UTF8.GetString(content); // return contentStr; //} #region GetDataSetByXml /// <summary> /// 读取xml直接返回DataSet /// </summary> /// <param name="strXmlPath">xml文件相对路径</param> /// <returns></returns> public static DataSet GetDataSetByXml(string strXmlPath) { try { DataSet ds = new DataSet(); ds.ReadXml(GetXmlFullPath(strXmlPath)); if (ds.Tables.Count > 0) { return ds; } return null; } catch (Exception ) { return null; } } #endregion #region GetDataViewByXml /// <summary> /// 读取Xml返回一个经排序或筛选后的DataView /// </summary> /// <param name="strXmlPath">xml文件相对路径</param> /// <param name="strWhere">筛选条件,如："name = ＇kgdiwss＇"</param> /// <param name="strSort">排序条件,如："Id desc"</param> /// <returns></returns> public static DataView GetDataViewByXml(string strXmlPath, string strWhere, string strSort) { try { DataSet ds = new DataSet(); ds.ReadXml(GetXmlFullPath(strXmlPath)); DataView dv = new DataView(ds.Tables[0]); if (strSort != null) { dv.Sort = strSort; } if (strWhere != null) { dv.RowFilter = strWhere; } return dv; } catch (Exception) { return null; } } #endregion #region WriteXmlByDataSet /// /// 向Xml文件插入一行数据 /// /// xml文件相对路径 /// 要插入行的列名数组,如：string[] Columns = {"name","IsMarried"}; /// 要插入行每列的值数组,如：string[] ColumnValue={"明天去要饭","false"}; /// 成功返回true,否则返回false public static bool WriteXmlByDataSet(string strXmlPath, string[] Columns, string[] ColumnValue) { try { //根据传入的XML路径得到.XSD的路径,两个文件放在同一个目录下 string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd"; DataSet ds = new DataSet(); //读xml架构,关系到列的数据类型 ds.ReadXmlSchema(GetXmlFullPath(strXsdPath)); ds.ReadXml(GetXmlFullPath(strXmlPath)); DataTable dt = ds.Tables[0]; //在原来的表格基础上创建新行 DataRow newRow = dt.NewRow(); //循环给一行中的各个列赋值 for (int i = 0; i < Columns.Length; i++) { newRow[Columns[i]] = ColumnValue[i]; } dt.Rows.Add(newRow); dt.AcceptChanges(); ds.AcceptChanges(); ds.WriteXml(GetXmlFullPath(strXmlPath)); return true; } catch (Exception) { return false; } } #endregion #region UpdateXmlRow /// /// 更行符合条件的一条Xml记录 /// /// XML文件路径 /// 列名数组 /// 列值数组 /// 条件列名 /// 条件列值 /// public static bool UpdateXmlRow(string strXmlPath, string[] Columns, string[] ColumnValue, string strWhereColumnName, string strWhereColumnValue) { try { string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd"; DataSet ds = new DataSet(); //读xml架构,关系到列的数据类型 ds.ReadXmlSchema(GetXmlFullPath(strXsdPath)); ds.ReadXml(GetXmlFullPath(strXmlPath)); //先判断行数 if (ds.Tables[0].Rows.Count > 0) { for (int i = 0; i < ds.Tables[0].Rows.Count; i++) { //如果当前记录为符合Where条件的记录 if (ds.Tables[0].Rows[i][strWhereColumnName].ToString().Trim().Equals(strWhereColumnValue)) { //循环给找到行的各列赋新值 for (int j = 0; j < Columns.Length; j++) { ds.Tables[0].Rows[i][Columns[j]] = ColumnValue[j]; } //更新DataSet ds.AcceptChanges(); //重新写入XML文件 ds.WriteXml(GetXmlFullPath(strXmlPath)); return true; } } } return false; } catch (Exception) { return false; } } #endregion #region DeleteXmlRowByIndex /// /// 通过删除DataSet中iDeleteRow这一行,然后重写Xml以实现删除指定行 /// /// /// 要删除的行在DataSet中的Index值 public static bool DeleteXmlRowByIndex(string strXmlPath, int iDeleteRow) { try { DataSet ds = new DataSet(); ds.ReadXml(GetXmlFullPath(strXmlPath)); if (ds.Tables[0].Rows.Count > 0) { //删除符号条件的行 ds.Tables[0].Rows[iDeleteRow].Delete(); } ds.WriteXml(GetXmlFullPath(strXmlPath)); return true; } catch (Exception) { return false; } } #endregion #region DeleteXmlRows /// /// 删除strColumn列中值为ColumnValue的行 /// /// xml相对路径 /// 列名 /// strColumn列中值为ColumnValue的行均会被删除 /// public static bool DeleteXmlRows(string strXmlPath, string strColumn, string[] ColumnValue) { try { DataSet ds = new DataSet(); ds.ReadXml(GetXmlFullPath(strXmlPath)); //先判断行数 if (ds.Tables[0].Rows.Count > 0) { //判断行多还是删除的值多,多的for循环放在里面 if (ColumnValue.Length > ds.Tables[0].Rows.Count) { for (int i = 0; i < ds.Tables[0].Rows.Count; i++) { for (int j = 0; j < ColumnValue.Length; j++) { if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j])) { ds.Tables[0].Rows[i].Delete(); } } } } else { for (int j = 0; j < ColumnValue.Length; j++) { for (int i = 0; i < ds.Tables[0].Rows.Count; i++) { if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j])) { ds.Tables[0].Rows[i].Delete(); } } } } ds.WriteXml(GetXmlFullPath(strXmlPath)); } return true; } catch (Exception) { return false; } } #endregion #region DeleteXmlAllRows /// /// 删除所有行 /// /// XML路径 /// public static bool DeleteXmlAllRows(string strXmlPath) { try { DataSet ds = new DataSet(); ds.ReadXml(GetXmlFullPath(strXmlPath)); //如果记录条数大于0 if (ds.Tables[0].Rows.Count > 0) { //移除所有记录 ds.Tables[0].Rows.Clear(); } //重新写入,这时XML文件中就只剩根节点了 ds.WriteXml(GetXmlFullPath(strXmlPath)); return true; } catch (Exception) { return false; } } #endregion #region GetXmlFullPath /// /// 返回完整路径 /// /// Xml的路径 /// public static string GetXmlFullPath(string strPath) { //如果路径中含有:符号,则认定为传入的是完整路径 if (strPath.IndexOf(":") > 0) { return strPath; } else { //返回完整路径 return System.Web.HttpContext.Current.Server.MapPath(strPath); } } #endregion } }