Question

我正在使用Ionic 3构建我的移动应用程序，并且必须根据要求下载文件。同样，我需要获取下载文件的响应头信息。我正在使用File Transer插件（https://ionicframework.com/docs/native/file-transfer/）下载文件。

下面是我在做什么。

private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
    if (_user != null)// Check for active logged-on user
    {
        var senderGrid = (DataGridView)sender;// Cast sender to DataGridView object type

        if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn && e.RowIndex >= 0)// check column is checkbox column
        {
            btnGroupAssets.Enabled = true;// Enable group assets button

            if (dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor == Color.AliceBlue)
            {
                dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.LightCoral;
            }
            else if (dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor == Color.LightCoral)
            {
                dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.AliceBlue;
            }
        }
    }
    else
    {
        MessageBox.Show("Login required");// Prompt user for login
        List<Form> forms = new List<Form>();

        foreach (Form f in Application.OpenForms)// Check open forms for login form
            if (f.Name == "Login" || f.Name == "li")// If there is an instance of login, close it
                forms.Add(f);

        foreach (Form f in forms)
            f.Close();

        Login li = new Login();// Open new login form
        li.Show();
    }
}

使用所需的参数启动下载后，下载成功，并且得到的响应就像

downloadAndOpen(downloadURL, attachmentName) { 

let options: FileUploadOptions = {
       headers: {'Authentication-Info': localStorage.getItem("SessionID")}
   }

   var savePath = this.file.dataDirectory + attachmentName;

   this.fileTransfer.download(downloadURL, savePath, false, options).then((entry) => {
        // Need to get the Header information.
   });
}

服务器团队在Response标头中发送的敏感信息很少，这些信息将在下载文档时使用。在Ionic Native File Transfer插件中找不到正确的信息来获取响应头信息。

下载文件的响应标头-File Transer-Ionic 3

0 个答案: