有一个问题,即 streamwriter 在我正在生成的 csv 中生成错误字符。字符仅出现在文件的开头:
5,"GEN",555555555,,"Evan","Smith",,,,,,,,,,,,,,,,,,,,,,,,,"email@someplace.com"
5,"GEN",555555555,,"Dorathy","Smith",,,,,,,,,,,,,,,,,,,,,,,,,"email@someplace.com"
5,"GEN",555555555,,"Marvin","Smith",,,,,,,,,,,,,,,,,,,,,,,,,"email@someplace.com"
....
在我看来像一个编码问题。我尝试了不同的编码以及一个正则表达式来清理字符串,但运气不佳。这是预览代码(虽然它并不复杂)。它也作为 Web 进程运行。
string fileName = includeEmail == false ? "attachment; filename=stuacct_batch.txt" : "attachment; filename=rentals.csv";
Context.Response.Clear();
Context.Response.AddHeader("content-disposition", fileName);
Context.Response.ContentType = includeEmail == false ? "text/plain" : "text/csv";
using (StreamWriter sw = new StreamWriter(Response.OutputStream, Encoding.UTF8))
{
string line = "";
foreach (Student s in students)
{
// ... some logic above that that's misc. to this problem
line = "5,\"GEN\"," + s.StudentNumber + ",,\"" + s.FirstName + "\",\"" + s.LastName + "\",,,,,,,,,,,,,,,,,,,,,,,,,\"" + s.Email + "\"";
sw.WriteLine(line);
}
}
Context.Response.End();
Context.Response.Flush();
Context.ApplicationInstance.CompleteRequest();