小编Cha*_*run的帖子

我试图通过webmethod从服务器下载文件,但它对我不起作用.我的代码如下

     [System.Web.Services.WebMethod()]
public static string GetServerDateTime(string msg)
{
    String result = "Result : " + DateTime.Now.ToString() + " - From Server";
    System.IO.FileInfo file = new System.IO.FileInfo(System.Web.HttpContext.Current.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["FolderPath"].ToString()) + "\\" + "Default.aspx");
    System.Web.HttpResponse Response = System.Web.HttpContext.Current.Response;
    Response.ClearContent();
    Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
    Response.AddHeader("Content-Length", file.Length.ToString());
    Response.ContentType = "application/octet-stream";
    Response.WriteFile(file.FullName);
    //HttpContext.Current.ApplicationInstance.CompleteRequest();
    Response.Flush();
    Response.End();
    return result;        
}

我的ajax调用代码如下

    <script type="text/javascript">
    function GetDateTime() {
                    var params = "{'msg':'From Client'}";
                    $.ajax
                      ({
                          type: "POST",
                          url: "Default.aspx/GetServerDateTime",
                          data: params,
                          contentType: "application/json;charset=utf-8",
                          dataType: "json",
                          success: function (result) {
                              alert(result.d); …