OTS/OTSIncAReportApp/DataOperation/DataAccess/XMLoperate.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Xml;

namespace OTSIncAReportApp.DataOperation.DataAccess
{
    public class XMLoperate
    {

        #region 读取XML到DataSet

        /// <summary>
        /// 功能:读取XML到DataSet中
        /// </summary>
        /// <param name="XmlPath">xml路径</param>
        /// <returns>DataSet</returns>
        public static DataSet GetXml(string XmlPath)
        {
            DataSet ds = new DataSet();
            ds.ReadXml(@XmlPath);
            return ds;
        }
        #endregion

        #region 读取xml文档并返回一个节点

        /// <summary>
        /// 读取xml文档并返回一个节点:适用于一级节点
        /// </summary>
        /// <param name="XmlPath">xml路径</param>
        /// <param name="NodeName">节点</param>
        /// <returns></returns>
        public static string ReadXmlReturnNode(string XmlPath, string Node)
        {
            XmlDocument docXml = new XmlDocument();
            docXml.Load(@XmlPath);
            XmlNodeList xn = docXml.GetElementsByTagName(Node);
            return xn.Item(0).InnerText.ToString();
        }
        #endregion

        #region 查找数据,返回一个DataSet

        /// <summary>
        /// 查找数据,返回当前节点的所有下级节点,填充到一个DataSet中
        /// </summary>
        /// <param name="xmlPath">xml文档路径</param>
        /// <param name="XmlPathNode">节点的路径:根节点/父节点/当前节点</param>
        /// <returns></returns>
        public static DataSet GetXmlData(string xmlPath, string XmlPathNode)
        {
            XmlDocument objXmlDoc = new XmlDocument();
            objXmlDoc.Load(xmlPath);
            DataSet ds = new DataSet();
            StringReader read = new StringReader(objXmlDoc.SelectSingleNode(XmlPathNode).OuterXml);
            ds.ReadXml(read);
            return ds;
        }
        #endregion



        //必须创建对象才能使用的类
        private bool _alreadyDispose = false;
        private XmlDocument xmlDoc = new XmlDocument();
        private XmlNode xmlNode;
        private XmlElement xmlElem;
        private string _xmlPath;

        #region 构造与释构
        public XMLoperate()
        {
        }
        public XMLoperate(string xmlPath)
        {
            _xmlPath = xmlPath;
        }
        ~XMLoperate()
        {
            Dispose();
        }
        protected virtual void Dispose(bool isDisposing)
        {
            if (_alreadyDispose) return;
            if (isDisposing)
            {
                //
            }
            _alreadyDispose = true;
        }
        #endregion

        #region IDisposable 成员
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
        #endregion

        #region 根据父节点属性值读取子节点值

        /// <summary>
        /// 根据父节点属性读取字节点值
        /// </summary>
        /// <param name="XmlPath">xml路径</param>
        /// <param name="FatherElenetName">父节点名</param>
        /// <param name="AttributeName">属性值</param>
        /// <param name="AttributeIndex">属性索引</param>
        /// <param name="ArrayLength">要返回的节点数组长度</param>
        /// <returns></returns>
        public static System.Collections.ArrayList GetSubElementByAttribute(string XmlPath, string FatherElenetName, string AttributeName, int AttributeIndex, int ArrayLength)
        {
            System.Collections.ArrayList al = new System.Collections.ArrayList();
            XmlDocument docXml = new XmlDocument();
            docXml.Load(@XmlPath);
            XmlNodeList xn = docXml.DocumentElement.ChildNodes;
            //遍历第一层节点
            foreach (XmlElement element in xn)
            {
                //判断父节点是否为指定节点
                if (element.Name == FatherElenetName)
                {
                    //判断父节点属性的索引是否大于指定索引
                    if (element.Attributes.Count < AttributeIndex)
                        return null;
                    //判断父节点的属性值是否等于指定属性
                    if (element.Attributes[AttributeIndex].Value == AttributeName)
                    {
                        XmlNodeList xx = element.ChildNodes;
                        if (xx.Count > 0)
                        {
                            for (int i = 0; i < ArrayLength & i < xx.Count; i++)
                            {
                                al.Add(xx[i].InnerText);
                            }
                        }
                    }
                }
            }
            return al;
        }
        #endregion

        #region 根据节点属性读取子节点值(较省资源模式)

        /// <summary>
        /// 根据节点属性读取子节点值(较省资源模式)
        /// </summary>
        /// <param name="XmlPath">xml路径</param>
        /// <param name="FatherElement">父节点值</param>
        /// <param name="AttributeName">属性名称</param>
        /// <param name="AttributeValue">属性值</param>
        /// <param name="ArrayLength">返回的数组长度</param>
        /// <returns></returns>
        public static System.Collections.ArrayList GetSubElementByAttribute(string XmlPath, string FatherElement, string AttributeName, string AttributeValue, int ArrayLength)
        {
            System.Collections.ArrayList al = new System.Collections.ArrayList();
            XmlDocument docXml = new XmlDocument();
            docXml.Load(@XmlPath);
            XmlNodeList xn;
            xn = docXml.DocumentElement.SelectNodes("//" + FatherElement + "[" + @AttributeName + "='" + AttributeValue + "']");
            XmlNodeList xx = xn.Item(0).ChildNodes;
            for (int i = 0; i < ArrayLength & i < xx.Count; i++)
            {
                al.Add(xx.Item(i).InnerText);
            }
            return al;
        }
        #endregion

        #region 根据父节点属性值读取子节点值

        /// <summary>
        /// 根据父节点属性读取字节点值
        /// </summary>
        /// <param name="XmlPath">xml路径</param>

        /// <returns></returns>
        public static Dictionary<string, object> GetXMLAllInfo(string XmlPath)
        {
            if (XmlPath == "")
            {
                return null;
            }
            Dictionary<string, object> suggestions = new Dictionary<string, object>();
            XmlDocument docXml = new XmlDocument();
            docXml.Load(@XmlPath);
            XmlNodeList xn = docXml.DocumentElement.ChildNodes;
            //遍历第一层节点
            foreach (XmlElement element in xn)
            {

                string name = element.Name;
                int attributes = element.Attributes.Count;
                Dictionary<string, object> obj = new Dictionary<string, object>();
                string key = "";
                foreach (System.Xml.XmlAttribute item in element.Attributes)
                {
                    if (item.Name == "RegName")
                    {
                        key = item.Value;
                    }
                    else
                    {
                        obj.Add(item.Name, item.Value);
                    }
                }
                if (element.ChildNodes.Count > 0)
                {
                    Dictionary<string, object> childList = GetChildInfo(element.ChildNodes);
                    if (childList.Count > 0)
                    {
                        obj.Add("Members", childList);
                    }
                }
                suggestions.Add(key, obj);
            }
            return suggestions;
        }
        private static Dictionary<string, object> GetChildInfo(XmlNodeList childs)
        {
            Dictionary<string, object> child = new Dictionary<string, object>();
            foreach (XmlElement element in childs)
            {
                if (element.Name != "Member")
                    continue;
                int attributes = element.Attributes.Count;
                Dictionary<string, object> obj = new Dictionary<string, object>();
                string key = "";
                foreach (System.Xml.XmlAttribute item in element.Attributes)
                {
                    if (item.Name == "RegName")
                    {
                        key = item.Value;
                    }
                    else
                    {
                        obj.Add(item.Name, item.Value);
                    }
                }
                if (element.ChildNodes.Count > 0)
                {
                    Dictionary<string, object> childList = GetChildInfo(element.ChildNodes);
                    if (childList.Count > 0)
                    {
                        obj.Add("Members", childList);
                    }
                }
                child.Add(key, obj);
            }
            return child;
        }
        #endregion

        public static List<string> GetMember(string XmlPath, string tem)
        {
            if (XmlPath == "")
            {
                return null;
            }
            XmlDocument docXml = new XmlDocument();
            docXml.Load(@XmlPath);
            XmlNodeList xn = docXml.DocumentElement.ChildNodes[0].ChildNodes;
            List<string> elem = new List<string>();
            //遍历第一层节点
            foreach (XmlElement element in xn)
            {
                foreach (System.Xml.XmlAttribute item in element.Attributes)
                {
                    if (item.Name == "TemplateName" && item.Value == tem)
                    {
                        elem.Add(element.ChildNodes[0].ChildNodes[0].Attributes["ElementName"].Value);
                        elem.Add(element.ChildNodes[0].ChildNodes[1].Attributes["ElementName"].Value);
                        elem.Add(element.ChildNodes[0].ChildNodes[2].Attributes["ElementName"].Value);
                        return elem;
                    }

                }

            }
            return elem;
        }
        /// <summary>
        /// 修改xml
        /// </summary>
        /// <param name="FilePath">文件地址</param>
        /// <param name="RegName">节点名称</param>
        /// <param name="Name">节点属性名称</param>
        /// <param name="Value">节点属性值</param>
        public static bool EditXmlInfo(string FilePath, string TagName, string Name, string Value)
        {
            try
            {
                XmlDocument xmlDoc = new XmlDocument();

                xmlDoc.Load(FilePath);    //加载Xml文件  

                XmlNodeList nodeList = xmlDoc.GetElementsByTagName(TagName);

                foreach (XmlNode node in nodeList)
                {
                    XmlElement ele = (XmlElement)node;

                    ele.SetAttribute(Name, Value);


                }
                xmlDoc.Save(FilePath);
                return true;
            }
            catch (Exception e)
            {
                return false;
            }


        }

        /// <summary>
        /// 获取XML节点参数
        /// </summary>
        /// <param name="Name">节点参数名称</param>
        /// <returns>节点参数</returns>
        public static string GetXMLInformations(string xmlFilePath, string Name)
        {
            try
            {
                string value = string.Empty;
                XmlDocument doc = new XmlDocument();

                doc.Load(xmlFilePath);    //加载Xml文件  

                XmlElement root = doc.DocumentElement;   //获取根节点  

                XmlNodeList mainNodes = root.GetElementsByTagName("parameter"); //获取子节点集合  

                foreach (XmlNode node in mainNodes)
                {
                    //获取Name属性值
                    string name = ((XmlElement)node).GetAttribute("Name");
                    if (name.Equals(Name))
                    {
                        value = ((XmlElement)node).GetAttribute("Value");
                    }
                }
                return value;
            }
            catch (Exception)
            {
                return "";
            }
        }

        /// <summary>
        /// 修改第二层节点数据
        /// </summary>
        /// <param name="XmlPath">XML路径</param>
        /// <param name="AttributeName">所有需要修改的属性名称</param>
        /// <param name="Value">需要修改的值</param>
        /// <returns></returns>
        public static bool UpdateByAttribute(string XmlPath, string[] AttributeName, string[] Value)
        {
            try
            {
                XmlDocument docXml = new XmlDocument();
                docXml.Load(@XmlPath);
                XmlNodeList xn = docXml.DocumentElement.ChildNodes;
                //遍历第一层节点
                foreach (XmlElement element in xn)
                {
                    if (element.Attributes[0].Value == Value[0])
                    {
                        for (int i = 0; i < element.Attributes.Count; i++)
                        {
                            for (int j = 0; j < AttributeName.Count(); j++)
                            {
                                //判断父节点的属性值是否等于指定属性
                                if (element.Attributes[i].Name == AttributeName[j])
                                {
                                    element.SetAttribute(AttributeName[j], Value[j]);
                                    break;
                                }
                            }
                        }
                        break;
                    }
                }
                docXml.Save(@XmlPath);
                return true;
            }
            catch (Exception e)
            {
                return false;
            }


        }
        public static int InsertAttribute(string XmlPath, string[] AttributeName, string[] Value, string nodeName)
        {
            try
            {
                XmlDocument docXml = new XmlDocument();
                docXml.Load(@XmlPath);
                XmlNodeList xn = docXml.DocumentElement.ChildNodes;
                foreach (XmlElement element in xn)
                {
                    if (element.Attributes[0].Value == Value[0])
                    {
                        return -1;
                    }
                }
                XmlElement xe = docXml.CreateElement(nodeName);
                for (int i = 0; i < AttributeName.Count(); i++)
                {
                    xe.SetAttribute(AttributeName[i], Value[i]);
                }
                docXml.DocumentElement.AppendChild(xe);
                docXml.Save(@XmlPath);
                return 1;
            }
            catch (Exception e)
            {
                return 0;
            }
        }
        public static int DeleteByAttribute(string XmlPath, string AttributeName, string Value)
        {
            try
            {
                XmlDocument docXml = new XmlDocument();
                docXml.Load(@XmlPath);
                XmlNodeList xn = docXml.DocumentElement.ChildNodes;
                foreach (XmlElement element in xn)
                {
                    if (element.Attributes[AttributeName].Value == Value)
                    {
                        element.ParentNode.RemoveChild(element);
                        docXml.Save(@XmlPath);
                        return 1;
                    }
                }
                return 2;
            }
            catch (Exception e)
            {
                return 0;
            }
        }

        #region 报告模板

        /// <summary>
        /// 写入配置,也可以用来修改
        /// </summary>
        /// <param name="value">写入的值</param>
        /// <param name="nodes">节点</param>
        public void Write(string value, params string[] nodes)
        {
            //初始化xml
            XmlDocument xmlDoc = new XmlDocument();
            if (File.Exists(_xmlPath))
                xmlDoc.Load(_xmlPath);
            else
                xmlDoc.LoadXml("<XmlConfig />");
            XmlNode xmlRoot = xmlDoc.ChildNodes[0];

            //新增、编辑 节点
            string xpath = string.Join("/", nodes);
            XmlNode node = xmlDoc.SelectSingleNode(xpath);
            if (node == null)    //新增节点
            {
                node = makeXPath(xmlDoc, xmlRoot, xpath);
            }
            node.InnerText = value;

            //保存
            xmlDoc.Save(_xmlPath);
        }

        /// <summary>
        /// 设置节点上属性的值
        /// </summary>
        /// <param name="AttributeName">属性名</param>
        /// <param name="AttributeValue">属性值</param>
        /// <param name="nodes">选择节点</param>
        public void SetAttribute(string AttributeName, string AttributeValue, params string[] nodes)
        {
            //初始化xml
            XmlDocument xmlDoc = new XmlDocument();
            if (File.Exists(_xmlPath))
                xmlDoc.Load(_xmlPath);
            else
                xmlDoc.LoadXml("<XmlConfig />");
            XmlNode xmlRoot = xmlDoc.ChildNodes[0];

            //新增、编辑 节点
            string xpath = string.Join("/", nodes);
            XmlElement element = (XmlElement)xmlDoc.SelectSingleNode(xpath);
            if (element == null)    //新增节点
            {
                element = (XmlElement)makeXPath(xmlDoc, xmlRoot, xpath);
            }

            //设置节点上属性的值
            element.SetAttribute(AttributeName, AttributeValue);
            //保存
            xmlDoc.Save(_xmlPath);
        }

        public string GetAttribute(string AttributeName, params string[] nodes)
        {
            //初始化xml
            XmlDocument xmlDoc = new XmlDocument();
            if (File.Exists(_xmlPath))
                xmlDoc.Load(_xmlPath);
            else
                xmlDoc.LoadXml("<XmlConfig />");
            XmlNode xmlRoot = xmlDoc.ChildNodes[0];

            //新增、编辑 节点
            string xpath = string.Join("/", nodes);
            XmlElement element = (XmlElement)xmlDoc.SelectSingleNode(xpath);
            if (element == null)    //新增节点
            {
                element = (XmlElement)makeXPath(xmlDoc, xmlRoot, xpath);
            }

            //设置节点上属性的值
            string retstr = element.GetAttribute(AttributeName);
            //保存
            xmlDoc.Save(_xmlPath);

            return retstr;
        }


        /// <summary>
        /// 读取配置
        /// </summary>
        /// <param name="nodes">节点</param>
        /// <returns></returns>
        public string Read(params string[] nodes)
        {
            XmlDocument xmlDoc = new XmlDocument();
            if (File.Exists(_xmlPath) == false)
                return null;
            else
                xmlDoc.Load(_xmlPath);

            string xpath = string.Join("/", nodes);
            XmlNode node = xmlDoc.SelectSingleNode("/XmlConfig/" + xpath);
            if (node == null)
                return null;

            return node.InnerText;
        }

        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="nodes"></param>
        public void RemoveNode(params string[] nodes)
        {
            XmlDocument xmlDoc = new XmlDocument();
            if (File.Exists(_xmlPath) == false)
                return;
            else
                xmlDoc.Load(_xmlPath);

            string xpath = string.Join("/", nodes);
            XmlNode node = xmlDoc.SelectSingleNode("/XmlConfig/" + xpath);

            //取得父节点
            string[] father_nodes = new string[nodes.Count() - 1];

            //对父节点进行初始化
            for (int i = 0; i < nodes.Count() - 1; i++)
            {
                father_nodes[i] = (string)nodes[i].Clone();
            }


            string fast_xpath = string.Join("/", father_nodes);
            XmlNode fastnode = xmlDoc.SelectSingleNode("/XmlConfig/" + fast_xpath);

            if (node == null)
                return;
            if (fastnode == null)
                return;

            //使用父节点删除子节点
            fastnode.RemoveChild(node);

            //保存
            xmlDoc.Save(_xmlPath);
        }



        //递归根据 xpath 的方式进行创建节点
        static private XmlNode makeXPath(XmlDocument doc, XmlNode parent, string xpath)
        {

            // 在XPath抓住下一个节点的名称；父级如果是空的则返回
            string[] partsOfXPath = xpath.Trim('/').Split('/');
            string nextNodeInXPath = partsOfXPath.First();
            if (string.IsNullOrEmpty(nextNodeInXPath))
                return parent;

            // 获取或从名称创建节点
            XmlNode node = parent.SelectSingleNode(nextNodeInXPath);
            if (node == null)
                node = parent.AppendChild(doc.CreateElement(nextNodeInXPath));

            // 加入的阵列作为一个XPath表达式和递归余数
            string rest = String.Join("/", partsOfXPath.Skip(1).ToArray());
            return makeXPath(doc, node, rest);
        }
        #endregion

    }

}