Windows 服务器不支持给定路径的格式答案

【问题标题】：The given path's format is not supported in windows serverWindows 服务器不支持给定路径的格式
【发布时间】：2023-03-31 07:27:01
【问题描述】：

我有一个 Web 应用程序，我想上传一个 excel 文件并在应用程序中读取它。当我使用 VS 或在 localhost（使用 Windows 7 和 IIS 7.5）运行应用程序时，一切都很好。但是，当我将应用程序部署在具有 Windows Server 2008 和 IIS 7.5 的服务器中时，我看到了两个错误。我使用团队查看器连接到服务器，并在服务器上部署了应用程序。

当我想从服务器桌面上传文件时，我看到了这个（我有管理员权限）：

Access to the path 'C:\Users\Administrator\Desktop\931001.xlsx' is denied.

当我想从另一个 pathese 上传时，我看到了这个错误：

The given path's format is not supported.

这些是我上传文件的尝试：

尝试 1：

public ActionResult Index(HttpPostedFileBase file)
{
    file.SaveAs(Server.MapPath("~/Files/" + file.FileName));
    var fileName = "/Files/" + file.FileName;
    var connectionString = "";
    if (file.FileName.Split('.').LastOrDefault().ToLower() == "xlsx")
    {
        connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}; Extended Properties=Excel 12.0;", Server.MapPath(fileName));
    }
    else
    {
        connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);
    }
    var adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]",     connectionString);
    var ds = new DataSet();
    adapter.Fill(ds, "contracts");
    var contracts = ds.Tables["contracts"].AsEnumerable();
}

尝试 2：

public ActionResult Index(HttpPostedFileBase file)
{
    var path = Server.MapPath("~/Files/");
    file.SaveAs(Path.Combine(path, file.FileName));
    var fileName = "~/Files/" + file.FileName;
    var connectionString = "";
    if (file.FileName.Split('.').LastOrDefault().ToLower() == "xlsx")
    {
        connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}; Extended Properties=Excel 12.0;", Server.MapPath(fileName));
    }
    else
    {
        connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", Server.MapPath(fileName));
    }
    var adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString);
    var ds = new DataSet();
    adapter.Fill(ds, "customer");
    var customer = ds.Tables["customer"].AsEnumerable();
}

尝试 3：

public ActionResult Index(HttpPostedFileBase file)
{
    var path = Server.MapPath(@"\Files\");
    file.SaveAs(Path.Combine(path, file.FileName));
    var fileName = @"\Files\" + file.FileName;
    var connectionString = "";
    if (file.FileName.Split('.').LastOrDefault().ToLower() == "xlsx")
    {
        connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}; Extended Properties=Excel 12.0;", Server.MapPath(fileName));
    }
    else
    {
        connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", Server.MapPath(fileName));
    }
    var adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString);
    var ds = new DataSet();
    adapter.Fill(ds, "customer");
    var customer = ds.Tables["customer"].AsEnumerable();
}

可能是什么问题？

【问题讨论】：

标签： c# asp.net-mvc windows-server-2008-r2

【解决方案1】：

尝试如下使用：

public ActionResult Index(HttpPostedFileBase file)
{
    var path = Path.Combine(Server.MapPath("~/Files/",file.FileName));
    file.SaveAs(path);
    var connectionString = "";
    if (Path.GetExtension(path).ToLower()==".xslx")
    {
        connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}; Extended Properties=Excel 12.0;",path);
    }
    else
    {
        connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", path);
    }
    var adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString);
    var ds = new DataSet();
    adapter.Fill(ds, "customer");
    var customer = ds.Tables["customer"].AsEnumerable();
}

【讨论】：