通过选择文件格式移动设备时如何在aspx页面中接收文件 [英] How receive file in aspx page when pass choose file form mobile device

问题描述

嗨
我使用cordova FileTransfer插件在Android和IOS Mobile设备上传和下载，我现在停止使用HttpPostedFile在aspx页面中接收



从移动应用程序我使用以下代码传输文件。
按钮点击事件

Hi I am using cordova FileTransfer plugin to upload and download in Android and IOS Mobile device,i am now stuck with receive in aspx page using HttpPostedFile

From mobile app i am transfer file using below code.
in button click event

function uploadFile() {


             navigator.camera.getPicture(
                 uploadPhoto,
                 function (message) {
                     $("#ErrorDiv").text("Failed to get a picture. Please select one.");
                 }, {
                     quality: 50,
                     destinationType: navigator.camera.DestinationType.FILE_URI,
                  sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY
                               });



             function uploadPhoto(fileURI) {

                             var ft = new FileTransfer();
                             ft.upload(fileURI, encodeURI("http://" + localStorage.serverip + "/UService/ReceiveUpload.aspx"), UploadSuccess, UploadFail, options);


             }
         }

以上localStorage.serverip是服务器，在ReceiveUpload.aspx页面加载我写下面的代码来检索文件并保存在服务器机器文件夹中。

In above localStorage.serverip is server and in ReceiveUpload.aspx page load i write below code to retrive file and save in server machine folder.

  Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
        If Request.Files.Count <= 0 Then
            Exit Sub
        End If
        Dim MyFileCollection As HttpFileCollection

        MyFileCollection = Request.Files
        Dim postedFile As HttpPostedFile = Request.Files(0)
        Dim inStream As System.IO.Stream = postedFile.InputStream
        Dim fileData As Byte() = New Byte(postedFile.ContentLength - 1) {}
        inStream.Read(fileData, 0, postedFile.ContentLength)

        Dim writepath As String = Server.MapPath(".") & "\UserFiles"
        postedFile.SaveAs(writepath)
End Sub

如果我从以下方式选择文件，它可以正常工作

图库 - >相机或

图库 - >屏幕截图或

图库 - > WhatsApp图像或

Gallert - >图片或来自Dropbox



这是截图，当我从上面选择http://prntscr.com/dlkeh7并且它正常工作。



但是如果使用下面的代码直接从照片，内部存储，SD卡转移文件中选择文件，这是截图http://prntscr.com/dlkebn或http://prntscr.com/dlke7k



Request.Files计数总是得到0.



fileURI有什么问题？在上面的屏幕截图中，我在警告信息中显示了fileURI。



我尝试过：



但是如果尝试上传以下代码可以从移动设备的任何位置转移

If i am choose files from following ways ,it work fine
Gallery --> Camera or
Gallery--> Screenshots or
Gallery-->WhatsApp Images or
Gallert--> Pictures or from Dropbox

this is screenshot when i choose from above ways http://prntscr.com/dlkeh7 and it working.

But if choose files directly from Photos,Internal Storage,SD card cant transfer file using below code ,this is screenshot http://prntscr.com/dlkebn or http://prntscr.com/dlke7k

Request.Files count always get 0.

What wrong with fileURI ? in above screenshot i showed fileURI in alert msg.

What I have tried:

But if try to upload with following code can transfer from any location from mobile devices

document.addEventListener("deviceready", onDeviceReady, false);

          function onDeviceReady() {
               navigator.camera.getPicture(
               uploadPhoto,
               function(message) { alert('get picture failed'); },
               {
                   quality         : 50,
                   destinationType : navigator.camera.DestinationType.FILE_URI,
                   sourceType      : navigator.camera.PictureSourceType.PHOTOLIBRARY
               }
           );
       }

       function uploadPhoto(imageURI) {
           var options = new FileUploadOptions();
           options.fileKey="file";
           options.fileName=imageURI.substr(imageURI.lastIndexOf('/')+1);
           options.mimeType="image/jpeg";

           var params = {};
           params.value1 = "test";
           params.value2 = "param";

           options.params = params;

           var ft = new FileTransfer();
           ft.upload(imageURI, encodeURI("http://posttestserver.com/post.php"), win, fail, options);
       }

请尽快回复



问候

Aravind

Pls reply asap

Regards
Aravind

推荐答案

（ ＃ErrorDiv）。text（ 无法得到一张照片。请选择一张。）;
}，{
质量： 50 ，
destinationType： navigator .camera.DestinationType.FILE_URI，
sourceType： navigator .camera.PictureSourceType.PHOTOLIBRARY
}）;



function uploadPhoto（fileURI）{

var ft = new FileTransfer（）;
ft.upload（fileURI， encodeURI （ http：// + localStorage.serverip + / UService / ReceiveUpload.aspx），UploadSuccess，UploadFail，options）;


}
}

("#ErrorDiv").text("Failed to get a picture. Please select one."); }, { quality: 50, destinationType: navigator.camera.DestinationType.FILE_URI, sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY }); function uploadPhoto(fileURI) { var ft = new FileTransfer(); ft.upload(fileURI, encodeURI("http://" + localStorage.serverip + "/UService/ReceiveUpload.aspx"), UploadSuccess, UploadFail, options); } }

以上localStorage.serverip是服务器，在ReceiveUpload.aspx页面加载我写下面的代码来检索文件并保存在服务器机器文件夹中。

In above localStorage.serverip is server and in ReceiveUpload.aspx page load i write below code to retrive file and save in server machine folder.

  Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
        If Request.Files.Count <= 0 Then
            Exit Sub
        End If
        Dim MyFileCollection As HttpFileCollection

        MyFileCollection = Request.Files
        Dim postedFile As HttpPostedFile = Request.Files(0)
        Dim inStream As System.IO.Stream = postedFile.InputStream
        Dim fileData As Byte() = New Byte(postedFile.ContentLength - 1) {}
        inStream.Read(fileData, 0, postedFile.ContentLength)

        Dim writepath As String = Server.MapPath(".") & "\UserFiles"
        postedFile.SaveAs(writepath)
End Sub

如果我从以下方式选择文件，它可以正常工作

图库 - >相机或

图库 - >屏幕截图或

图库 - > WhatsApp图像或

Gallert - >图片或来自Dropbox



这是截图，当我从上面选择http://prntscr.com/dlkeh7并且它正常工作。



但是如果使用下面的代码直接从照片，内部存储，SD卡转移文件中选择文件，这是截图http://prntscr.com/dlkebn或http://prntscr.com/dlke7k



Request.Files计数总是得到0.



fileURI有什么问题？在上面的屏幕截图中，我在警告信息中显示了fileURI。



我尝试过：



但是如果尝试上传以下代码可以从移动设备的任何位置转移

If i am choose files from following ways ,it work fine
Gallery --> Camera or
Gallery--> Screenshots or
Gallery-->WhatsApp Images or
Gallert--> Pictures or from Dropbox

this is screenshot when i choose from above ways http://prntscr.com/dlkeh7 and it working.

But if choose files directly from Photos,Internal Storage,SD card cant transfer file using below code ,this is screenshot http://prntscr.com/dlkebn or http://prntscr.com/dlke7k

Request.Files count always get 0.

What wrong with fileURI ? in above screenshot i showed fileURI in alert msg.

What I have tried:

But if try to upload with following code can transfer from any location from mobile devices

document.addEventListener("deviceready", onDeviceReady, false);

          function onDeviceReady() {
               navigator.camera.getPicture(
               uploadPhoto,
               function(message) { alert('get picture failed'); },
               {
                   quality         : 50,
                   destinationType : navigator.camera.DestinationType.FILE_URI,
                   sourceType      : navigator.camera.PictureSourceType.PHOTOLIBRARY
               }
           );
       }

       function uploadPhoto(imageURI) {
           var options = new FileUploadOptions();
           options.fileKey="file";
           options.fileName=imageURI.substr(imageURI.lastIndexOf('/')+1);
           options.mimeType="image/jpeg";

           var params = {};
           params.value1 = "test";
           params.value2 = "param";

           options.params = params;

           var ft = new FileTransfer();
           ft.upload(imageURI, encodeURI("http://posttestserver.com/post.php"), win, fail, options);
       }

请尽快回复



问候

Aravind

Pls reply asap

Regards
Aravind

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