PubHandle.cs
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using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;
namespace CsbrHcgClient
{
class Xml_handle
{
private static Mutex mtx = new Mutex();
//**取配置文件的路径,此文件夹存放于BIN目录下
public string App_Config(string filename)
{
return System.IO.Path.Combine(Application.StartupPath, filename);//取配置文件的目录
}
//**作用:DATASET生成.XML文档**//
public bool createXMLDocument(string filename, DataSet ds, string url)
{
XmlDocument xmldoc = new XmlDocument(); //加入声明和跟节点
string xmlString = "<?xml version=\"1.0\" encoding=\"gb2312\"?><root></root>";
try
{
url = url + "\\" + filename;
xmldoc.LoadXml(xmlString);
CreateXMLFile_Schema(xmldoc, ds, url);
}
catch
{
return false;
}
return true;
}
public int CreateXMLFile_Schema(XmlDocument document, DataSet ds, string url)
{
//建立XML文档模型,并写入数据
try
{
ds.WriteXml(url, XmlWriteMode.WriteSchema);
}
catch
{
return 12;
}
return 0;
}
public int CreateXMLFile(XmlDocument document, DataSet ds, string url)
{
//建立XML文档模型,并写入数据
try
{
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
XmlElement table = document.CreateElement(ds.Tables[0].TableName);
for (int j = 0; j < ds.Tables[0].Columns.Count; j++)
{
XmlElement x = document.CreateElement(ds.Tables[0].Columns[j].ColumnName);
x.InnerText = ds.Tables[0].Rows[i][j].ToString();
table.AppendChild(x);
}
document.FirstChild.NextSibling.AppendChild(table);
}
document.Save(url);
}
catch
{
return 12;
}
return 0;
}
/// <summary>
/// XML转换成DATASET
/// </summary>
/// <param name="url">XML文件的名称</param>
/// <param name="message">返回错误消息</param>
/// <returns>读取XML的数据集</returns>
public DataSet ConvertXMLToDataSet_Schema(string url, ref StringBuilder message)
{
try
{
DataSet xmlDS = new DataSet();
string filepath = App_Config(url);
xmlDS.ReadXml(filepath, XmlReadMode.ReadSchema);
mtx.ReleaseMutex();
return xmlDS;
}
catch (Exception ex)
{
message.Append(ex.Message);
return null;
}
}
/// <summary>
/// XML转换成DATASET
/// </summary>
/// <param name="url">XML文件的名称</param>
/// <param name="message">返回错误消息</param>
/// <returns>读取XML的数据集</returns>
public DataSet ConvertXMLToDataSet(string url, ref StringBuilder message)
{
try
{
DataSet xmlDS = new DataSet();
string filepath = App_Config(url);
xmlDS.ReadXml(filepath);
return xmlDS;
}
catch (Exception ex)
{
message.Append(ex.Message);
return null;
}
}
//**作用:取指定元素指定节点的值,
//传入值:xmlfilename XML配置文档的名称
//节点名称:写法限制"//Config[@ID ='" + IDstring + "']"
//元素名称:Elemstring
public string GetValue(string Xmlfilename, string Nodestring, string Elemstring)
{
string value = "";
string Node = "//Config[@ID ='" + Nodestring + "']";
XmlDocument xDoc = new XmlDocument();
try
{
xDoc.Load(App_Config(Xmlfilename));
XmlNode xNode;
XmlElement xElem;
xNode = xDoc.SelectSingleNode(Node);
xElem = (XmlElement)xNode.SelectSingleNode(Elemstring);
if (xElem != null)
{
value = xElem.InnerText;
return value;
}
else
{
return "";
}
}
catch (Exception)
{
return "";
}
}
//**作用:删除节点
//传入值:xmlfilename XML配置文档的名称
//节点名称:写法限制"//Config[@ID ='" + IDstring + "']"
public bool DeletexElem(string Xmlfilename, string IDstring, ref StringBuilder smess)
{
string Nodestring = "//Config[@ID ='" + IDstring + "']";
try
{
XmlDocument xDoc = new XmlDocument();
xDoc.Load(App_Config(Xmlfilename));
XmlElement xElem;
xElem = (XmlElement)xDoc.SelectSingleNode(Nodestring);
//如果没有找到,则返回
if (xElem == null)
{
smess.Append("数据不存在,无需删除!");
return false;
}
else
{
// 从XML文档中移除元素
XmlElement root = xDoc.DocumentElement;
root.RemoveChild(xElem);
}
xDoc.Save(App_Config(Xmlfilename));
}
catch (Exception ex)
{
smess.Append(ex.Message);
return false;
}
return true;
}
//作用:创建XML文档及根
//参数:日志文件的目录与文件名称 例:f:\ab\c\d.xml
public bool CreateLogroot(string xmlnamepath)
{
XmlDocument xmldoc = new XmlDocument(); //加入声明和跟节点
string xmlString = "<?xml version=\"1.0\" encoding=\"gb2312\"?><LOGS></LOGS>";
try
{
xmldoc.LoadXml(xmlString);
xmldoc.Save(xmlnamepath);
}
catch
{
return false;
}
return true;
}
//**作用:新增元素
public XmlElement addTextElement(XmlDocument doc, XmlElement nodeParent, string strTag, string strValue)
{
//通过传入的标签,创建一个新元素
XmlElement nodeElem = doc.CreateElement(strTag);
//通过传入的值,创建一个文本节点
XmlText nodeText = doc.CreateTextNode(strValue);
// 将此元素作为一个子元素添加到一个元素上
nodeParent.AppendChild(nodeElem);
// 将文本节点添加到此元素的子节点中
nodeElem.AppendChild(nodeText);
return nodeElem;
}
//判断配置文件是否存在
public int file_exist(string file_name)
{
string file_path = App_Config(file_name);
if (!File.Exists(file_path))
{
return 1;
}
else
{
return 0;
}
}
}
public class pub_handle
{
private DataSet ds;
Xml_handle xmlhandle = new Xml_handle();
/// <summary>
/// 取XML文档数据
/// </summary>
/// <param name="?">xml文档名字</param>
/// <returns></returns>
public DataSet Init(string xml_name, ref StringBuilder smess)
{
Xml_handle xmlhandle = new Xml_handle();
ds = xmlhandle.ConvertXMLToDataSet(xml_name, ref smess);
if (ds != null)
{
return ds;
}
else
{
return null;
}
}
/// <summary>
/// 返回按检索条件返回的DATATABLE
/// </summary>
/// <param name="xml_name">取得的XML的数据</param>
/// <param name="s_where">数据检索条件</param>
/// <param name="smess">返回的错误</param>
/// <returns></returns>
public DataTable Init_where(string xml_name, string s_where, ref StringBuilder smess)
{
try
{
Xml_handle xmlhandle = new Xml_handle();
ds = xmlhandle.ConvertXMLToDataSet(xml_name, ref smess);
if (ds != null)
{
DataRow[] dr = ds.Tables[0].Select(s_where); //重新检索数据行
DataTable t_datatable = new DataTable();
t_datatable = dr.CopyToDataTable(); //生成新的DATATABLE
return t_datatable;
}
else
{
smess.Append("数据不存在!");
return null;
}
}
catch (Exception ex)
{
smess.Append(ex.Message);
return null;
}
}
/// <summary>
/// 新增,更新XML文档
/// </summary>
/// <param name="ds_xml">需要更新的DATASET</param>
/// <param name="xml_name">XML文档名</param>
/// <param name="smess">返回错误信息</param>
/// <returns></returns>
public bool Updatexml(DataSet ds_xml, string xml_name, ref StringBuilder smess)
{
DataTable dt = ds_xml.Tables[0];
int changecount = 0;
XmlDocument xDoc = new XmlDocument();
try
{
if (!File.Exists(xmlhandle.App_Config(xml_name)))
{
xmlhandle.CreateXMLFile_Schema(xDoc, ds_xml, xmlhandle.App_Config(xml_name));
}
xDoc.Load(xmlhandle.App_Config(xml_name));
for (int i = 0; i < dt.Rows.Count; i++)
{
if (dt.Rows[i].RowState != DataRowState.Unchanged)
{
changecount++;
XmlNode xNode;
xNode = xDoc.SelectSingleNode("//Config[@ID ='" + dt.Rows[i]["ID"].ToString() + "']");
if (xNode != null)
{
foreach (DataColumn dc in dt.Columns)
{
if (dc.ColumnName.ToString() != "ID")
{
XmlElement xElem_Value = (XmlElement)xNode.SelectSingleNode(dc.ColumnName.ToString());
xElem_Value.InnerText = dt.Rows[i][dc].ToString();
}
}
}
else
{
XmlElement nodeParent = xDoc.DocumentElement;
XmlElement elemEmployee = xDoc.CreateElement("Config");
elemEmployee.SetAttribute("ID", dt.Rows[i]["ID"].ToString());
// 为<Employee>元素添加子元素
foreach (DataColumn dc in dt.Columns)
{
if (dc.ColumnName != "ID")
{
xmlhandle.addTextElement(xDoc, elemEmployee, dc.ColumnName.ToString(), dt.Rows[i][dc].ToString());
}
}
nodeParent.AppendChild(elemEmployee);
}
}
}
if (changecount > 0)
{
xDoc.Save(xmlhandle.App_Config(xml_name));
}
return true;
}
catch (Exception ex)
{
smess = smess.Append(ex.ToString());
return false;
}
}
/// <summary>
/// 删除节点
/// </summary>
/// <param name="xml_name"></param>
/// <param name="node_id"></param>
/// <param name="smess"></param>
/// <returns></returns>
public bool Delxml(string xml_name, string node_id, ref StringBuilder smess)
{
bool del_result = xmlhandle.DeletexElem(xml_name, node_id, ref smess);
return del_result;
}
/// <summary>
/// 用于保存前检验数据ID是否重复
/// </summary>
/// <param name="ds">要检验的数据集</param>
/// <returns>TURE重复,FALSE不重复</returns>
public bool ID_CHECK(DataSet ds, ref StringBuilder smess)
{
var xmlquery = from xml in ds.Tables[0].AsEnumerable()
group xml by xml.Field<string>("ID") into g
select new { IDstring = g.Key, IdCount = g.Count() };
foreach (var checknum in xmlquery)
{
if (checknum.IdCount > 1)
{
smess.Append("配置:" + checknum.IDstring + "重复,请修改后提交");
return true;
}
}
return false;
}
//设置服务地址配置文件的值
public bool SetValue(string xml_name, string AppKey, string AppValue, string appchoose, ref string errmess)
{
XmlDocument xDoc = new XmlDocument();
try
{
xDoc.Load(xmlhandle.App_Config(xml_name));
XmlNode xNode;
XmlElement xElem;
xNode = xDoc.SelectSingleNode("//services");
xElem = (XmlElement)xNode.SelectSingleNode("//service[@name ='" + appchoose + "']//host//baseAddresses//add");
if (xElem != null)
{
xElem.SetAttribute(AppKey, AppValue);
}
else
{
return false;
}
xDoc.Save(xmlhandle.App_Config(xml_name));
return true;
}
catch (Exception ex)
{
errmess = ex.Message;
return false;
}
}
}
}