using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.IO;
using System.Windows.Forms;
namespace AliWorkbenchProgram
{
public class ClassSimbaRptOp
{
public static string message = "";
public static string writeMessage = "";
public static DataTable OpenCSV(string filePath)//从csv读取数据返回table
{
System.Text.Encoding encoding = GetType(filePath); //Encoding.ASCII;//
DataTable dt = new DataTable();
System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open,System.IO.FileAccess.Read);
System.IO.StreamReader sr = new System.IO.StreamReader(fs, encoding);
//记录每次读取的一行记录
string strLine = "";
//记录每行记录中的各字段内容
string[] aryLine = null;
string[] tableHead = null;
//标示列数
int columnCount = 0;
//标示是否是读取的第一行
bool IsFirst = true;
//逐行读取CSV中的数据
while ((strLine = sr.ReadLine()) != null)
{
if (IsFirst == true)
{
tableHead = strLine.Split(',');
IsFirst = false;
columnCount = tableHead.Length;
//创建列
for (int i = 0; i < columnCount; i++)
{
DataColumn dc = new DataColumn(tableHead[i]);
dt.Columns.Add(dc);
}
}
else
{
aryLine = strLine.Split(',');
DataRow dr = dt.NewRow();
for (int j = 0; j < columnCount; j++)
{
dr[j] = aryLine[j];
}
dt.Rows.Add(dr);
}
}
if (aryLine != null && aryLine.Length > 0)
{
dt.DefaultView.Sort = tableHead[0] + " " + "asc";
}
sr.Close();
fs.Close();
return dt;
}
/// 给定文件的路径，读取文件的二进制数据，判断文件的编码类型
/// <param name="FILE_NAME">文件路径</param>
/// <returns>文件的编码类型</returns>
public static System.Text.Encoding GetType(string FILE_NAME)
{
System.IO.FileStream fs = new System.IO.FileStream(FILE_NAME, System.IO.FileMode.Open,
System.IO.FileAccess.Read);
System.Text.Encoding r = GetType(fs);
fs.Close();
return r;
}
/// 通过给定的文件流，判断文件的编码类型
/// <param name="fs">文件流</param>
/// <returns>文件的编码类型</returns>
public static System.Text.Encoding GetType(System.IO.FileStream fs)
{
byte[] Unicode = new byte[] { 0xFF, 0xFE, 0x41 };
byte[] UnicodeBIG = new byte[] { 0xFE, 0xFF, 0x00 };
byte[] UTF8 = new byte[] { 0xEF, 0xBB, 0xBF }; //带BOM
System.Text.Encoding reVal = System.Text.Encoding.Default;
System.IO.BinaryReader r = new System.IO.BinaryReader(fs, System.Text.Encoding.Default);
int i;
int.TryParse(fs.Length.ToString(), out i);
byte[] ss = r.ReadBytes(i);
if (IsUTF8Bytes(ss) || (ss[0] == 0xEF && ss[1] == 0xBB && ss[2] == 0xBF))
{
reVal = System.Text.Encoding.UTF8;
}
else if (ss[0] == 0xFE && ss[1] == 0xFF && ss[2] == 0x00)
{
reVal = System.Text.Encoding.BigEndianUnicode;
}
else if (ss[0] == 0xFF && ss[1] == 0xFE && ss[2] == 0x41)
{
reVal = System.Text.Encoding.Unicode;
}
r.Close();
return reVal;
}
/// 判断是否是不带 BOM 的 UTF8 格式
/// <param name="data"></param>
/// <returns></returns>
private static bool IsUTF8Bytes(byte[] data)
{
int charByteCounter = 1; //计算当前正分析的字符应还有的字节数
byte curByte; //当前分析的字节.
for (int i = 0; i < data.Length; i++)
{
curByte = data[i];
if (charByteCounter == 1)
{
if (curByte >= 0x80)
{
//判断当前
while (((curByte <<= 1) & 0x80) != 0)
{
charByteCounter++;
}
//标记位首位若为非0 则至少以2个1开始 如:110XXXXX...........1111110X
if (charByteCounter == 1 || charByteCounter > 6)
{
return false;
}
}
}
else
{
//若是UTF-8 此时第一位必须为1
if ((curByte & 0xC0) != 0x80)
{
return false;
}
charByteCounter--;
}
}
if (charByteCounter > 1)
{
throw new Exception("非预期的byte格式");
}
return true;
}
public void ExportToSvc(DataTable dt)
{
string saveFileName = ""; //获取文件名，不带路径
string saveFileDirectory = "";//获得文件路径
string saveFilePath = ""; //文件路径和文件名和扩展名
string exportFileTime = DateTime.Now.ToString("yyyyMMddHHmmss");
string exportFileName = "Export" + exportFileTime;
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.InitialDirectory = @"C:\Users\Administrator\Desktop\"; //@是取消转义字符的意思
saveFileDialog.FileName = saveFileDialog.InitialDirectory + exportFileName + ".csv";
saveFileDialog.Filter = "(*.CSV)|*.csv";//设置文件类型
saveFileDialog.FilterIndex = 0;//设置默认文件类型显示顺序（可以不设置）
saveFileDialog.RestoreDirectory = true;//保存对话框是否记忆上次打开的目录
saveFileDialog.CreatePrompt = true;
saveFileDialog.Title = "导出csv文件保存路径";
DialogResult dialogResult = saveFileDialog.ShowDialog();
message += "=== 本次( 时间:" + exportFileTime + " )导出日志" + "\r\n" ;
if (dialogResult == DialogResult.OK)
{
saveFilePath = saveFileDialog.FileName;//获得文件路径
saveFileName = saveFilePath.Substring(saveFilePath.LastIndexOf("\\") + 1);
saveFileDirectory = saveFilePath.Substring(0, saveFilePath.LastIndexOf("\\")); //获取文件路径，不带文件名
message += "已选择导出文件路径： " + saveFilePath + "\r\n";
message += "已命名导出文件名： " + saveFileName+ "\r\n";
try
{
if (saveFilePath.Length != 0)
{
//没有数据的话就不往下执行
if (dt.Rows.Count == 0)
{
message += "已选导出无数据"+ "\r\n\r\n";
return;
}
/*
if (File.Exists(saveFilePath))
{
File.Delete(saveFilePath);
}
*/
//先打印标头
StringBuilder strColu = new StringBuilder();
StringBuilder strValue = new StringBuilder();
int i = 0;
StreamWriter sw = new StreamWriter(new FileStream(saveFilePath, FileMode.CreateNew), Encoding.GetEncoding("GB2312"));
for (i = 0; i <= dt.Columns.Count - 1; i++)
{
strColu.Append(dt.Columns[i].ColumnName);
strColu.Append(",");
}
strColu.Remove(strColu.Length - 1, 1);//移出掉最后一个,字符
sw.WriteLine(strColu);
message += "成功导出:标题列数 " + dt.Columns.Count.ToString ()+" 列";
foreach (DataRow dr in dt.Rows)
{
strValue.Remove(0, strValue.Length);//移出
for (i = 0; i <= dt.Columns.Count - 1; i++)
{
strValue.Append(dr[i].ToString());
strValue.Append(",");
}
strValue.Remove(strValue.Length - 1, 1);//移出掉最后一个,字符
sw.WriteLine(strValue);
}
message += ",行数 "+ dt.Rows.Count .ToString ()+" 行" + "\r\n\r\n";
sw.Close();
}
}
catch (Exception ex)
{
message += "导出失败:" + ex.Message+ "\r\n\r\n";
// Console.WriteLine("导出失败" + ex.Message, "提示");
}
// System.Diagnostics.Process.Start(strPath);
}
if(dialogResult == DialogResult.Cancel)
{
message += "导出失败:已人为取消导出 " + "\r\n\r\n";
}
}
public DataSet LoadExcelToDataset()
{
OleDbConnection conn = null;
OleDbDataAdapter da = null;
DataSet ds = null;
DataTable dtSheetName = null;
string exportFileTime = DateTime.Now.ToString("yyyyMMddHHmmss");
OpenFileDialog dlg = new OpenFileDialog();
dlg.Multiselect = true;//允许同时选择多个文件
dlg.InitialDirectory = @"C:\Users\Administrator\Desktop\";
dlg.Filter = "xls files(*.xls)|*.xls|xlsx files(*.xlsx)|*.xlsx";
dlg.FilterIndex = 1;
dlg.RestoreDirectory = true;
DialogResult dialogResult = dlg.ShowDialog();
message += "=== 本次( 时间:" + exportFileTime + " )读取日志" + "\r\n"; ;
if (dialogResult == DialogResult.OK)
{
try
{
ds = new DataSet();
message +="【已选准备读取的文件数:" + dlg.FileNames.Length.ToString() + " 个】"+ "\r\n";
int intFileCount = 0;
foreach (string strFileName in dlg.FileNames)
{
string fileExtension = System.IO.Path.GetExtension(strFileName);//扩展名 ".xls"
string strConn = "";
if (fileExtension == ".xls")
{
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strFileName + ";" + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
}
if (fileExtension == ".xlsx")
{
strConn = "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + strFileName + ";" + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\"";
}
// 初始化连接，并打开
conn = new OleDbConnection(strConn);
conn.Open();
dtSheetName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
intFileCount += 1;
da = new OleDbDataAdapter();// 初始化适配器
message += "--已读取第 "+intFileCount .ToString ()+" 个文件,路径: " + strFileName + "\r\n" + " 文件扩展名:" + fileExtension+"\r\n";
message += " SheetName数:" + dtSheetName.Rows.Count.ToString() + " 个"+"\r\n";
for (int i = 0; i < dtSheetName.Rows.Count; i++)
{
string SheetName = (string)dtSheetName.Rows[i]["TABLE_NAME"];
if (SheetName.Contains("$") && !SheetName.Replace("'", "").EndsWith("$"))
{
continue;
}
da.SelectCommand = new OleDbCommand(String.Format("Select * FROM [{0}]", SheetName), conn);
DataSet dsItem = new DataSet();
da.Fill(dsItem, SheetName);
ds.Tables.Add(dsItem.Tables[SheetName].Copy());
message += " SheetName名: " + SheetName+ "\r\n";
message += " 已读取列数:" + dsItem.Tables[SheetName].Columns.Count.ToString() + " 列";
message += " ,已读取行数:" + dsItem.Tables[SheetName].Rows.Count.ToString() + " 行"+ "\r\n";
}
conn.Close();
}
message += "\r\n" + "<<< 已读需要-合并总表格数： " + ds.Tables.Count.ToString() + " 个 >>>" + "\r\n";
}
catch (Exception e)
{
MessageBox.Show("Excel表格读取失败,额外信息:" + e.Message);
//throw;
}
finally
{
// 关闭连接
if (conn.State == ConnectionState.Open)
{
conn.Close();
da.Dispose();
conn.Dispose();
}
}
if (dialogResult == DialogResult.OK)
{
message += "本次读取：已人为取消" + "\r\n";
}
}
return ds;
}
public DataTable GetAllDataTable(DataSet ds)
{
DataTable newDataTable = null;
try
{
newDataTable = ds.Tables[0].Clone(); //创建新表 克隆以有表的架构。
object[] objArray = new object[newDataTable.Columns.Count]; //定义与表列数相同的对象数组 存放表的一行的值。
int intException = 0;
int intAdd = 0;
for (int i = 0; i < ds.Tables.Count; i++)
{
intException = i;
try
{
for (int j = 0; j < ds.Tables[i].Rows.Count; j++)
{
ds.Tables[i].Rows[j].ItemArray.CopyTo(objArray, 0); //将表的一行的值存放数组中。
newDataTable.Rows.Add(objArray); //将数组的值添加到新表中。
}
intAdd += 1;
message += "合并成功:第 " + (i + 1).ToString() + " 张表, 表名: " + ds.Tables[i].TableName + ",完成合并列数: " + ds.Tables[i].Columns.Count.ToString() + " 列" + " ,行数: " + ds.Tables[i].Rows.Count.ToString() + " 行" + "\r\n";
}
catch (Exception e)
{
message += "--->合并失败: 第" + (intException + 1).ToString() + "张表, 表名: " + ds.Tables[intException].TableName + " ,待合并列数: " + ds.Tables[intException].Columns.Count.ToString() + " 列" + "与已合并表列数 " + newDataTable.Columns.Count.ToString() + " 不等 【 仅支持合并多个结构相同的excel文件" + "\r\n";
//MessageBox.Show("Excel表格读取失败,额外信息:" + e.Message);
//throw;
}
continue;//跳过本次循环未执行的代码，继续执行下一次循环
}
message += "本次成功合并表数：" + intAdd.ToString() + "，行数： " + newDataTable.Rows.Count.ToString() + " 行" + "\r\n\r\n";
//返回新表。
}
catch (Exception e)
{
message += "本次读取：已人为取消" + "\r\n\r\n";
}
return newDataTable;
}
}
}
