Asp.Net導出到Excel - 日文字符

Question

我正在爲我的ASP .NET應用程序使用Visual Studio 2008。我正嘗試通過Response對象將一些帶日文字符的報表導出到Excel中。當我嘗試導出時，所有日文字符看起來都是亂碼。它適用於漢字。這是我試過的：

我試過安裝日語語言包/編碼爲UTF-8/UTF-7/Shift-JIS/Globalization（Web.Config）..但沒有運氣。任何想法如何解決這個問題？謝謝 ！！

 string attachment = "attachment; filename=PerksPlusReport.xls"; 
     //Response.Clear(); 
     Response.ClearContent(); 
     Response.ClearHeaders(); 
Response.AddHeader("content-disposition", attachment); 
     //Response.Charset = "UTF-8"; 
//Response.Charset = "UTF-7"; 
//Response.Charset = "Shift_JIS"; 
     Response.ContentType = "application/vnd.ms-excel"; 
     StringWriter sw = new StringWriter(); 
     HtmlTextWriter htw = new HtmlTextWriter(sw); 

     // Create a form to contain the grid 
     HtmlForm frm = new HtmlForm(); 
     ReportGridView.Parent.Controls.Add(frm); 
     frm.Attributes["runat"] = "server"; 
     GridView GridView2 = new GridView(); 

     ReportView reportDetails = GetReportDetails(); 
     GridView2.DataSource = GetReportResults(this.ReportId.Value, reportDetails.Sql); 

     GridView2.DataBind(); 
     PrepareGridViewForExport(GridView2); 
     frm.Controls.Add(GridView2); 
     frm.RenderControl(htw); 

     string fileContents = sw.ToString(); 
     int startSpot = fileContents.IndexOf("<table"); 
     fileContents = fileContents.Substring(startSpot); 
     int endSpot = fileContents.IndexOf("</table>"); 
     fileContents = fileContents.Substring(0, endSpot + 8); 

     try 
     { 
      // Replace all &lt; and &gt; with <and> 
      fileContents = fileContents.Replace("&lt;", "<"); 
      fileContents = fileContents.Replace("&gt;", ">"); 
      fileContents = fileContents.Replace("€", "&euro;"); 

      string RegularExpression = @"<a[^>]*>([^<]*)</a>"; 
      Regex regex = new Regex(RegularExpression); 

      //If match found .. uses the delegate function to replace the whole content with the filtered values 
      if (regex.IsMatch(fileContents)) 
      { 
       regex.Replace(fileContents, delegate (Match m){return fileContents.Replace(m.Captures[0].Value, m.Groups[1].Value);}); 
      } 
     } 
     catch (Exception ex2) 
     { 
      Response.Write(ex2.ToString()); 
     } 

Response.Write(fileContents); 
     Response.End(); 

Answer 1

您是否嘗試過設置Response的ContentEncoding屬性或顯式設置內容編碼HTTP標頭？

Answer 2

這是我如何得到它的工作..

Response.Clear(); 
Response.ClearContent(); 
Response.ClearHeaders(); 
Response.AddHeader("content-disposition", "attachment; filename=FileName.xls"); 
Response.ContentEncoding = System.Text.Encoding.Unicode; 
Response.ContentType = "application/ms-excel"; 
Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble()); 

Answer 3

Response.ContentEncoding = System.Text.Encoding.Default; 

解決我的問題。我也希望你也是。

Answer 4

只需添加以下2行。大多數時候我們會忘記導致所有挫折的第二行。

Response.ContentEncoding = System.Text.Encoding.Unicode; 
Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble()); 

Answer 5

/* 
Here is fully functional class. Hope this will help someone 
For queries, contact amjad@qatar.net.qa 
*/ 



using System; 
using System.Data; 
using System.Configuration; 
using System.IO; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 


public class GridViewExportUtil 
{ 

    public static void Export(string fileName, GridView gv) 
    { 
     HttpContext.Current.Response.Clear(); 
     //HttpContext.Current.Response.ContentType = "application/ms-excel"; 
     HttpContext.Current.Response.ContentType = "application/vnd.ms-excel"; 
     //HttpContext.Current.Response.ContentType = "text/html; charset=utf-8"; 

     HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", fileName + ".xls")); 
     HttpContext.Current.Response.Charset = ""; 
     HttpContext.Current.Response.Buffer = true; 
     HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Unicode; 
     HttpContext.Current.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble()); 

     //HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8; 
     //HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("iso-8859-2"); 


     //This will allow you to set the Report Header and Report Title 
     //My file name format "ReportTitle_PatientID_PrescriptionNo_ReportDateTime" 
     string [] arrFileName = fileName.Replace(".xls","").Split('_'); 
     string rptTitle = arrFileName[0] + " " + arrFileName[1]; 
     string rptPatientID = arrFileName[2]; 
     string rptSpecimen = arrFileName[3]; 
     string rptDate = arrFileName[4] + " " + arrFileName[5]; 

     /*Optional Header*/ 
     //HttpContext.Current.Response.Write("DEPARTMENT OF PHARMACY - Pharmacy Prescription Details<br>"); 
     //HttpContext.Current.Response.Write("Patient ID: " + rptPatientID + "<br>"); 
     //HttpContext.Current.Response.Write("Prescription No: " + rptSpecimen + "<br>"); 
     //HttpContext.Current.Response.Write("Report Date: " + rptDate); 
     //HttpContext.Current.Response.Write("<br><br>"); 


     using (StringWriter sw = new StringWriter()) 
     { 
      using (HtmlTextWriter htw = new HtmlTextWriter(sw)) 
      { 
       // Create a form to contain the grid 
       Table table = new Table(); 

       // add the header row to the table 
       if (gv.HeaderRow != null) 
       { 
        GridViewExportUtil.PrepareControlForExport(gv.HeaderRow); 
        table.Rows.Add(gv.HeaderRow); 
       } 

       // add each of the data rows to the table 
       foreach (GridViewRow row in gv.Rows) 
       { 
        GridViewExportUtil.PrepareControlForExport(row); 
        table.Rows.Add(row); 
       } 

       // add the footer row to the table 
       if (gv.FooterRow != null) 
       { 
        GridViewExportUtil.PrepareControlForExport(gv.FooterRow); 
        table.Rows.Add(gv.FooterRow); 
       } 

       // render the table into the htmlwriter 
       table.RenderControl(htw); 

      } 

      // render the htmlwriter into the response 
      HttpContext.Current.Response.Write(sw.ToString()); 
      HttpContext.Current.Response.End(); 
     } 


    } 

    /// <summary> 
    /// Replace any of the contained controls with literals 
    /// </summary> 
    /// <param name="control"></param> 
    private static void PrepareControlForExport(Control control) 
    { 
     for (int i = 0; i < control.Controls.Count; i++) 
     { 
      Control current = control.Controls[i]; 
      if (current is LinkButton) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text)); 
      } 
      else if (current is ImageButton) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText)); 
      } 
      else if (current is HyperLink) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text)); 
      } 
      else if (current is DropDownList) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text)); 
      } 
      else if (current is CheckBox) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False")); 
      } 

      if (current.HasControls()) 
      { 
       GridViewExportUtil.PrepareControlForExport(current); 
      } 
     } 
    } 
}