试图用ashx来获取查询字符串变量

我一直试图整理这一整天与大量的谷歌搜索，但几乎没有影响，所以提前感谢，如果你阅读并能够提供帮助。试图用ashx来获取查询字符串变量

我有一个简单的页面，它允许用户选择文件并上传到亚马逊桶，第一页是这样的：

var checkError = false; 
$(window).load(
    function() { 
     $("#<%=FileImages.ClientID %>").fileUpload({ 
      'fileSizeLimit': '100MB', 
      'uploader': 'scripts/uploader.swf', 
      'cancelImg': 'images/cancel.png', 
      'buttonText': 'Upload Files', 
      'script': 'UploadVB.ashx?gid=56', 
      'folder': 'uploads', 
      'multi': true, 
      'auto': true, 
      'onAllComplete': function (uploads) { 
       if (!checkError) { 
        location.href = "finished"; 
       } 
      }, 
      'onComplete': function (event, ID, fileObj, response, data) { 
       if (200 != parseInt(response)) { 
        checkError = true; 
        $('#FileImages' + ID).addClass('uploadifyError'); 
        $('#FileImages' + ID + ' .percentage').text(' - ' + response); 

        return false; 
       } 
      } 
     }); 
    }

）;

注意gid=56。然后，将文件发送到UploadVB.ashx这看起来是这样的：

Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest 
    Dim awsRegion As Amazon.RegionEndpoint = Amazon.RegionEndpoint.EUWest1 
    Dim client As New AmazonS3Client(System.Configuration.ConfigurationManager.AppSettings("AWSAccessKey").ToString(), System.Configuration.ConfigurationManager.AppSettings("AWSSecretKey").ToString(), awsRegion) 
    Dim fileID As String = Guid.NewGuid().ToString("N") 
    Dim postedFile As HttpPostedFile = context.Request.Files("Filedata") 

    Dim galleryid = context.Request.QueryString("gid") 

    Try 
     Dim filename As String = Path.GetFileName(postedFile.FileName) 
'### I WANT TO SUBMIT THE FILENAME AND ID INTO A TABLE HERE ###### 
    AddPortfolioPhoto(filename, Convert.ToInt16(galleryid)) 
    '################################################################# 
     Dim S3_KEY As [String] = filename.Replace(" ", "") 
     Dim request As New PutObjectRequest() 
     With request 
      .BucketName = System.Configuration.ConfigurationManager.AppSettings("AWSBucketName").ToString() 
      .Key = S3_KEY 
      .InputStream = postedFile.InputStream 
     End With 

     client.PutObject(request) 
     context.Response.Write("200") 
     context.Response.StatusCode = 200 
    Catch ex As Exception 
     context.Response.Write("AWS ERROR :: " + ex.Message) 
    End Try 
End Sub 
Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable 
    Get 
     Return False 
    End Get 
End Property

我每次运行这个上面它只是没有做任何事情，如果我删除此行：

AddPortfolioPhoto(filename, Convert.ToInt16(galleryid))

它的工作原理很好，但它是至关重要的，我把它插入到数据库中，我似乎无法抓住gid值。

任何帮助，非常感谢。

Public Shared Sub AddPortfolioPhoto(ByVal fn As String, gid As Integer) 

    Dim Writer As New Data.SqlClient.SqlCommand 
    Writer.CommandType = Data.CommandType.StoredProcedure 
    Writer.CommandText = "BCMS_AddGalleryPhoto" 
    Writer.Connection = New Data.SqlClient.SqlConnection(System.Configuration.ConfigurationManager.AppSettings("sqlstr")) 
    Writer.Parameters.AddWithValue("@imgstr", Data.SqlTypes.SqlString.Null).Value = fn 
    Writer.Parameters.AddWithValue("@galleryid", Data.SqlTypes.SqlInt32.Null).Value = gid 
    Writer.Parameters.AddWithValue("@so", Data.SqlTypes.SqlInt32.Null).Value = 0 
    Writer.Parameters.AddWithValue("@featured", Data.SqlTypes.SqlInt32.Null).Value = 0 
    Writer.Prepare() 
    Writer.Connection.Open() 
    Writer.ExecuteNonQuery() 
    Writer.Connection.Close() 

End Sub

来源

2016-05-31 Dave Evans

context.Request.QueryString（“gid”）的值是什么？ –

它总是一个整数，在这种情况下：56 –

错误来自AddPortfolio方法。你可以发布该代码吗？ –

看起来像你的帮助，我可能已经到这条底线，我期待值（56）不是我实际上得到在同一个变量，我其实是让“上传”所以发送一个字符串到这个方法是永远不会工作的，谢谢@ matt-dot-net提出建议并感谢Andrew Morton提供的处理技巧，我将使用它而不是关闭。

来源

2016-06-02 11:21:49

试图用ashx来获取查询字符串变量

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