用c#将unicode字符串写入CSV

本文关键字：CSV 字符串 unicode | 更新日期: 2023-09-27 17:51:05

我使用以下代码从unicode字符串创建csv文件:

context.Response.ContentType = "text/csv";
context.Response.ContentEncoding = System.Text.Encoding.Utf8;        
context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fundName + ".csv");
context.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble());                
String output ="";        
output += "Name, callNumber" + "'n";
String output ="علی,34343555" + "'n";     
context.Response.Write(output);

问题是unicode字符不能正确显示"علی"。

谢谢你的指导。问候阿里

用c#将unicode字符串写入CSV

我宁愿使用streamwriter来编写使用UTF-8编码的unicode字符。片段:

 using (StreamWriter sw = new StreamWriter(new FileStream("c:/Temp.csv", FileMode.Create), Encoding.UTF8))
            {
                    sw.WriteLine(string.Join(",", s));
            }

代码中的几个问题。

  • context.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble());写入UTF-32 而不是 UTF-8的BOM。

  • 输出变量定义两次

我建议试试这个:

context.Response.ContentType = "text/csv";
context.Response.ContentEncoding = System.Text.Encoding.Utf8;        
context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fundName + ".csv");
String output ="";        
output += "Name, callNumber" + "'n";
output +="علی,34343555" + "'n";     
context.Response.Write(output);
context.Response.End()

使用Encoding.Unicode编写Unicode CSV文件:

File.WriteAllText("path/to/file.csv", yourString, Encoding.Unicode);

Response.Clear();
Response.AppendHeader("Content-Type", "Application/vnd.ms-excel");
Response.ContentEncoding = Encoding.UTF8;
Response.AppendHeader("Content-Disposition", "attachment; filename=filename1.csv");
var data = Encoding.UTF8.GetBytes("your content with chinese characters");
var result = Encoding.UTF8.GetPreamble().Concat(data).ToArray();
var str = Encoding.UTF8.GetString(result);
Response.Write(str);
Response.Flush();
Response.SuppressContent = true;
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