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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Xml;using System.Reflection;using System.Text.RegularExpressions;using System.Data;using System.IO;namespace NFine.Web{ /// <summary>
/// 打印类的公共函数
/// </summary>
public class PrintFunction { /// <summary>
/// 把List类转化为XML字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="DtTable"></param>
/// <returns></returns>
public static string ListToXml<T>(IList<T> DtTable) { StringBuilder PrintStr = new StringBuilder(); XmlWriterSettings setting = new XmlWriterSettings(); PropertyInfo[] TableColumns; Type TableType = DtTable[0].GetType(); int ColRecn, RowRecn; string ColType;
setting.Indent = true; setting.OmitXmlDeclaration = true; TableColumns = TableType.GetProperties();
using (XmlWriter PrintXml = XmlWriter.Create(PrintStr, setting)) { PrintXml.WriteStartElement("xml"); PrintXml.WriteAttributeString("xmlns", "s", null, "u"); PrintXml.WriteAttributeString("xmlns", "dt", null, "u"); PrintXml.WriteAttributeString("xmlns", "rs", null, "u"); PrintXml.WriteAttributeString("xmlns", "z", null, "#R"); PrintXml.WriteStartElement("s", "Schema", null); PrintXml.WriteAttributeString("id", "RowsetSchema"); PrintXml.WriteStartElement("s", "ElementType", null); PrintXml.WriteAttributeString("name", "row"); PrintXml.WriteAttributeString("content", "eltOnly"); PrintXml.WriteAttributeString("rs", "updatable", null, "true");
for (ColRecn = 0; ColRecn < TableColumns.Length; ColRecn++) { ColType = TableColumns[ColRecn].PropertyType.ToString(); if (ColType == "System.String" || ColType == "System.DateTime" || ColType == "System.Int" || ColType == "System.Double" || ColType == "System.Boolean" || ColType == "System.Int32" || ColType == "System.Int64") { PrintXml.WriteStartElement("s", "AttributeType", null); PrintXml.WriteAttributeString("name", TableColumns[ColRecn].Name);
PrintXml.WriteAttributeString("rs", "number", null, (ColRecn + 1).ToString()); PrintXml.WriteAttributeString("rs", "nullable", null, "true"); PrintXml.WriteAttributeString("rs", "maydefer", null, "true"); PrintXml.WriteAttributeString("rs", "writeunknown", null, "true"); PrintXml.WriteAttributeString("rs", "basetable", null, ""); PrintXml.WriteAttributeString("rs", "basecolumn", null, TableColumns[ColRecn].Name);
if (ColType == "System.String") { //char
PrintXml.WriteStartElement("s", "datatype", null); PrintXml.WriteAttributeString("dt", "type", null, "string"); PrintXml.WriteAttributeString("dt", "maxLength", null, "8000"); PrintXml.WriteEndElement(); } else if (ColType == "System.DateTime") { //dateTime
PrintXml.WriteStartElement("s", "datatype", null); PrintXml.WriteAttributeString("dt", "type", null, "dateTime"); PrintXml.WriteAttributeString("dt", "maxLength", null, "16"); PrintXml.WriteEndElement(); } else if (ColType == "System.Double") { //Float
PrintXml.WriteStartElement("s", "datatype", null); PrintXml.WriteAttributeString("dt", "type", null, "float"); PrintXml.WriteAttributeString("dt", "maxLength", null, "8"); PrintXml.WriteEndElement(); } else if (ColType == "System.Int" || ColType == "System.Int32" || ColType == "System.Int64") { //int
PrintXml.WriteStartElement("s", "datatype", null); PrintXml.WriteAttributeString("dt", "type", null, "int"); PrintXml.WriteAttributeString("dt", "maxLength", null, "4"); PrintXml.WriteEndElement(); } else if (ColType == "System.Boolean") { //bit
PrintXml.WriteStartElement("s", "datatype", null); PrintXml.WriteAttributeString("dt", "type", null, "boolean"); PrintXml.WriteAttributeString("dt", "maxLength", null, "2"); PrintXml.WriteEndElement(); } PrintXml.WriteEndElement(); } } PrintXml.WriteEndElement(); PrintXml.WriteEndElement();
PrintXml.WriteStartElement("rs", "data", null); for (RowRecn = 0; RowRecn < DtTable.Count; RowRecn++) { PrintXml.WriteStartElement("z", "row", null); for (ColRecn = 0; ColRecn < TableColumns.Length; ColRecn++) { if (Convert.IsDBNull(TableColumns[ColRecn].GetValue(DtTable[RowRecn], null)) == true) continue;
ColType = TableColumns[ColRecn].PropertyType.ToString(); if (ColType == "System.String" || ColType == "System.DateTime" || ColType == "System.Int" || ColType == "System.Double" || ColType == "System.Boolean" || ColType == "System.Int32" || ColType == "System.Int64") { if (ColType == "System.DateTime") { DateTime TmpDateTime = System.Convert.ToDateTime(TableColumns[ColRecn].GetValue(DtTable[RowRecn], null)); string TmpStr = TmpDateTime.ToString("yyyy-MM-dd") + "T" + TmpDateTime.ToString("HH:mm:ss"); PrintXml.WriteAttributeString(TableColumns[ColRecn].Name, TmpStr); } else { string strValue = TableColumns[ColRecn].GetValue(DtTable[RowRecn], null).ToString(); strValue = strValue.Replace("\b", " "); strValue = Regex.Replace(strValue, "[\x00-\x08\x0b-\x0c\x0e-\x1f]", " "); PrintXml.WriteAttributeString(TableColumns[ColRecn].Name, strValue); } } } PrintXml.WriteEndElement(); } PrintXml.WriteEndElement();
PrintXml.WriteEndElement(); }
return PrintStr.ToString(); }
/// <summary>
/// 把数据表转换为XML字符串
/// </summary>
/// <param name="pTable"></param>
/// <returns></returns>
public static string TableToXml(DataTable pTable) { StringBuilder stbPrint = new StringBuilder(); XmlWriterSettings pXMLSet = new XmlWriterSettings(); pXMLSet.Indent = true; pXMLSet.OmitXmlDeclaration = true;
using (XmlWriter pPrintXML = XmlWriter.Create(stbPrint, pXMLSet)) { pPrintXML.WriteStartElement("xml"); pPrintXML.WriteAttributeString("xmlns", "s", null, "u"); pPrintXML.WriteAttributeString("xmlns", "dt", null, "u"); pPrintXML.WriteAttributeString("xmlns", "rs", null, "u"); pPrintXML.WriteAttributeString("xmlns", "z", null, "#R"); pPrintXML.WriteStartElement("s", "Schema", null); pPrintXML.WriteAttributeString("id", "RowsetSchema"); pPrintXML.WriteStartElement("s", "ElementType", null); pPrintXML.WriteAttributeString("name", "row"); pPrintXML.WriteAttributeString("content", "eltOnly"); pPrintXML.WriteAttributeString("rs", "updatable", null, "true");
foreach (DataColumn pColumn in pTable.Columns) { if (pColumn.DataType.Name == "Int64" || pColumn.DataType.Name == "Boolean" || pColumn.DataType.Name == "String" || pColumn.DataType.Name == "DateTime" || pColumn.DataType.Name == "Decimal" || pColumn.DataType.Name == "Double" || pColumn.DataType.Name == "Int32" || pColumn.DataType.Name == "Single" || pColumn.DataType.Name == "Int16" || pColumn.DataType.Name == "Byte") { pPrintXML.WriteStartElement("s", "AttributeType", null); pPrintXML.WriteAttributeString("name", pColumn.ColumnName);
pPrintXML.WriteAttributeString("rs", "number", null, (pColumn.Ordinal + 1).ToString()); pPrintXML.WriteAttributeString("rs", "nullable", null, "true"); pPrintXML.WriteAttributeString("rs", "maydefer", null, "true"); pPrintXML.WriteAttributeString("rs", "writeunknown", null, "true"); pPrintXML.WriteAttributeString("rs", "basetable", null, pTable.TableName); pPrintXML.WriteAttributeString("rs", "basecolumn", null, pColumn.ColumnName);
if (pColumn.DataType.Name == "Int64") { //bigint
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "i8"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "8"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Boolean") { //bit
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "boolean"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "2"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "String") { //char
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "string"); pPrintXML.WriteAttributeString("dt", "maxLength", null, pColumn.MaxLength.ToString()); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "DateTime") { //dateTime
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "dateTime"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "16"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Decimal") { //Decimal
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "number"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "19"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Double") { //Float
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "float"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "8"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Int32") { //int
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "int"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "4"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Single") { //Real
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "r4"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "4"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Int16") { //smallint
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "i2"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "2"); pPrintXML.WriteEndElement(); } else if (pColumn.DataType.Name == "Byte") { //tinyint
pPrintXML.WriteStartElement("s", "datatype", null); pPrintXML.WriteAttributeString("dt", "type", null, "ui1"); pPrintXML.WriteAttributeString("dt", "maxLength", null, "1"); pPrintXML.WriteEndElement(); } pPrintXML.WriteEndElement(); } } pPrintXML.WriteEndElement(); pPrintXML.WriteEndElement();
pPrintXML.WriteStartElement("rs", "data", null); foreach (DataRow pRow in pTable.Rows) { pPrintXML.WriteStartElement("z", "row", null); foreach (DataColumn Column in pTable.Columns) { if (pRow.IsNull(Column) == true) continue;
if (Column.DataType.Name == "Int64" || Column.DataType.Name == "Boolean" || Column.DataType.Name == "String" || Column.DataType.Name == "DateTime" || Column.DataType.Name == "Decimal" || Column.DataType.Name == "Double" || Column.DataType.Name == "Int32" || Column.DataType.Name == "Single" || Column.DataType.Name == "Int16" || Column.DataType.Name == "Byte") { if (Column.DataType.Name == "DateTime") { DateTime dtValue = System.Convert.ToDateTime(pRow[Column]); string strValue = dtValue.ToString("yyyy-MM-dd") + "T" + dtValue.ToString("HH:mm:ss"); pPrintXML.WriteAttributeString(Column.ColumnName, strValue); } else { string strValue = pRow[Column].ToString(); strValue = strValue.Replace("\b", " "); strValue = Regex.Replace(strValue, "[\x00-\x08\x0b-\x0c\x0e-\x1f]", " "); pPrintXML.WriteAttributeString(Column.ColumnName, strValue); } } } pPrintXML.WriteEndElement(); } pPrintXML.WriteEndElement();
pPrintXML.WriteEndElement(); }
return stbPrint.ToString(); }
/// <summary>
/// 把文件转换为字符串
/// </summary>
/// <param name="strFileName"></param>
/// <returns></returns>
public static string FileToString(string strFileName) { string[] aryByte = new string[256]; for (int i = 0; i < 256; i++) { if (i == 0) aryByte[i] = "00"; else if (i < 16) aryByte[i] = "0" + Convert.ToString(i, 16).ToUpper(); else aryByte[i] = Convert.ToString(i, 16).ToUpper(); }
if (!File.Exists(strFileName)) { return ""; }
byte[] aryFileByte = File.ReadAllBytes(strFileName); StringBuilder stbFileValue = new StringBuilder(); for (int i = 0; i < aryFileByte.Length; i++) { stbFileValue.Append(aryByte[aryFileByte[i]]); } aryFileByte = null;
return stbFileValue.ToString(); }
/// <summary>
/// 转化为base64编码
/// </summary>
/// <param name="strValue"></param>
/// <returns></returns>
public static string EnBase64(string strValue) { byte[] byteData = Encoding.Default.GetBytes(strValue); string strResult = Convert.ToBase64String(byteData); return strResult; }
/// <summary>
/// 文件转Base64编码字符串
/// </summary>
/// <param name="fileName">文件完整路径</param>
/// <returns></returns>
//public static string ConvertFileToBase64(string strValue)
//{
// FileStream fs = File.OpenRead(strValue);
// BinaryReader br = new BinaryReader(fs);
// byte[] bt = br.ReadBytes(Convert.ToInt32(fs.Length));
// string base64String = Convert.ToBase64String(bt);
// return base64String;
//}
}}
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