using System;
using System.ComponentModel;
using System.IO;
using System.Text;
using System.Windows.Forms;
using NewLife.IO;
namespace XCoder.FileEncoding
{
[DisplayName("文件编码工具")]
public partial class FrmMain : Form
{
public FrmMain()
{
InitializeComponent();
}
private void FrmEncodeReplace_Load(Object sender, EventArgs e)
{
txtSuffix.Text = "*.cs;*.aspx";
var encs = new String[] { "UTF-8", "UTF-8 NoBOM", "ASNI", "Unicode", "Default" };
//var encs = new Encoding[] { Encoding.UTF8, new UTF8Encoding(false), Encoding.ASCII, Encoding.UTF8 };
ddlEncodes.DataSource = encs;
ddlEncodes.Text = "UTF-8";
//cmb_tag.Text = "UTF-8";
btnReplace.Enabled = false;
}
private void btn_choice_file_Click(Object sender, EventArgs e)
{
if (!txtPath.Text.IsNullOrEmpty()) fbd_choice_folder.SelectedPath = txtPath.Text;
if (fbd_choice_folder.ShowDialog() != DialogResult.OK) return;
txtPath.Text = fbd_choice_folder.SelectedPath;
}
private void btn_replace_Click(Object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtPath.Text))
{
MessageBox.Show("请选择文件夹");
return;
}
if (gv_data.Rows[0].Cells["序号"].Value == null)
{
MessageBox.Show("当前没有需要替换的文件");
return;
}
if (MessageBox.Show("是否确定要批量修改列表中的编码", "警告", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
return;
var enc = Encoding.UTF8;
switch (ddlEncodes.Text)
{
case "UTF-8": enc = Encoding.UTF8; break;
case "UTF-8 NoBOM": enc = new UTF8Encoding(false); break;
case "ASNI": enc = Encoding.ASCII; break;
case "Unicode": enc = Encoding.Unicode; break;
}
var count = 0;
foreach (DataGridViewRow item in gv_data.Rows)
{
if (item.Cells["序号"].Value == null) continue;
var fileCharset = item.Cells["编码"].Value.ToString();
if (fileCharset.EqualIgnoreCase(ddlEncodes.Text)) continue;
try
{
//ReplaceEncoding(txtPath.Text + item.Cells["名称"].Value.ToString(), fileCharset, enc);
var file = txtPath.Text + item.Cells["名称"].Value;
var txt = File.ReadAllText(file);
File.WriteAllText(file, txt, enc);
count++;
}
catch (Exception ex)
{
MessageBox.Show("文件[" + txtPath.Text + item.Cells["名称"].Value.ToString() + "]" + "转换时出错,请手动转换" + ex.Message);
}
}
MessageBox.Show("转换{0}个文件完成".F(count));
gv_data.Rows.Clear();
}
/// <summary>
/// 替换文件编码
/// </summary>
/// <param name="file"></param>
private void ReplaceEncoding(String file, String charset, Encoding targetEncoding)
{
String fileInfo = "";
using (StreamReader sr = new StreamReader(file, Encoding.GetEncoding(charset), false))
{
fileInfo = sr.ReadToEnd();
}
using (StreamWriter sw = new StreamWriter(file, false, targetEncoding))
{
sw.Write(fileInfo);
}
}
Encoding GetEncode()
{
// "UTF-8", "ASNI", "Unicode", "Default"
var e = ddlEncodes.Text;
var result = Encoding.UTF8;
switch (e)
{
case "UTF-8": result = Encoding.UTF8; break;
case "ASNI": result = Encoding.ASCII; break;
case "Unicode": result = Encoding.Unicode; break;
}
return result;
}
/// <summary>
/// 文件过滤
/// </summary>
/// <param name="info"></param>
public void FileFilter(String path)
{
var di = path.AsDirectory();
if (!di.Exists) return;
var Count = 1;
foreach (var file in di.GetAllFiles(txtSuffix.Text, true))
{
var enc = EncodePelaceHelper.GetEncoding(file.FullName);
if (enc != null && !enc.WebName.EqualIgnoreCase(ddlEncodes.Text))
{
gv_data.Rows.Add(Count++, enc.WebName, file.FullName.Substring(path.Length));
}
}
}
private void btnFind_Click(Object sender, EventArgs e)
{
gv_data.Rows.Clear();
FileFilter(txtPath.Text);
btnReplace.Enabled = true;
}
}
/// <summary>
/// 文件替换辅助类
/// </summary>
public class EncodePelaceHelper
{
/// <summary>
/// 取得一个文本文件的编码方式。如果无法在文件头部找到有效的前导符，Encoding.UTF8将被返回。
/// </summary>
/// <param name="fileName">文件名</param>
///
public static Encoding GetEncoding(String fileName)
{
return GetEncoding(fileName, Encoding.UTF8);
}
/// <summary>取得一个文本文件的编码方式。</summary>
/// <param name="fileName">文件名。</param>
/// <param name="defaultEncoding">默认编码方式。当该方法无法从文件的头部取得有效的前导符时，将返回该编码方式。</param>
/// <returns></returns>
///
public static Encoding GetEncoding(String fileName, Encoding defaultEncoding)
{
using (var fs = File.OpenRead(fileName))
{
return fs.Detect() ?? defaultEncoding;
}
}
///// <summary>
///// 取得一个文本文件流的编码方式。
///// </summary>
///// <param name="stream">文本文件流</param>
///// <returns></returns>
/////
//public static Encoding GetEncoding(FileStream stream)
//{
// return GetEncoding(stream, Encoding.UTF8);
//}
///// <summary>
///// 取得一个文本文件的编码方式。
///// </summary>
///// <param name="fileName">文件名。</param>
///// <param name="defaultEncoding">默认编码方式。当该方法无法从文件的头部取得有效的前导符时，将返回该编码方式。</param>
///// <returns></returns>
/////
//public static Encoding GetEncoding(string fileName, Encoding defaultEncoding)
//{
// FileStream fs = new FileStream(fileName, FileMode.Open);
// Encoding targetEncoding = GetEncoding(fs, defaultEncoding);
// fs.Close();
// return targetEncoding;
//}
/// <summary>
/// 取得一个文本文件流的编码方式。
/// </summary>
/// <param name="stream">文本文件流。</param>
/// <param name="defaultEncoding">默认编码方式。当该方法无法从文件的头部取得有效的前导符时，将返回该编码方式。</param>
/// <returns></returns>
///
public static Encoding GetEncoding(FileStream stream, Encoding defaultEncoding)
{
Encoding targetEncoding = defaultEncoding;
if (stream != null && stream.Length >= 2)
{
//保存文件流的前4个字节
Byte byte1 = 0;
Byte byte2 = 0;
Byte byte3 = 0;
Byte byte4 = 0;
//保存当前Seek位置
Int64 origPos = stream.Seek(0, SeekOrigin.Begin);
stream.Seek(0, SeekOrigin.Begin);
Int32 nByte = stream.ReadByte();
byte1 = Convert.ToByte(nByte);
byte2 = Convert.ToByte(stream.ReadByte());
if (stream.Length >= 3)
{
byte3 = Convert.ToByte(stream.ReadByte());
}
if (stream.Length >= 4)
{
byte4 = Convert.ToByte(stream.ReadByte());
}
//根据文件流的前4个字节判断Encoding
//Unicode {0xFF, 0xFE};
//BE-Unicode {0xFE, 0xFF};
//UTF8 = {0xEF, 0xBB, 0xBF};
if (byte1 == 0xFE && byte2 == 0xFF)//UnicodeBe
{
targetEncoding = Encoding.BigEndianUnicode;
}
if (byte1 == 0xFF && byte2 == 0xFE && byte3 != 0xFF)//Unicode
{
targetEncoding = Encoding.Unicode;
}
if (byte1 == 0xEF && byte2 == 0xBB && byte3 == 0xBF)//UTF8
{
targetEncoding = Encoding.UTF8;
}
//恢复Seek位置
stream.Seek(origPos, SeekOrigin.Begin);
}
return targetEncoding;
}
}
}
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