[英]Issue regarding the uploading of image files in to server from android
I have created an application, using which I can upload an image stored at the gallery of my phone to the server. 我创建了一个应用程序,可以使用该应用程序将手机图库中存储的图像上传到服务器。 The server side language that I am using is PHP.
我正在使用的服务器端语言是PHP。 The issue that I am facing is little bit strange.
我面临的问题有点奇怪。 I am able to upload photos of size less that 2 MB, which I have taken using the camera of my phone.
我可以上传小于2 MB的照片,这些照片是使用手机的相机拍摄的。 But certain photos are not getting uploaded.
但是某些照片没有上传。 Here are the details of photos which were not getting uploaded:
以下是未上传的照片的详细信息:
First photo: 第一张照片:
Title: 2013-03-15 09.17.22.jpg 标题:2013-03-15 09.17.22.jpg
Type: JPEG 类型:JPEG
Size: 2645Kb 大小:2645Kb
Second photo: 第二张照片:
Title: 2013-03-12 11.48.04.jpg 标题:2013-03-12 11.48.04.jpg
Type: JPEG 类型:JPEG
Size: 2781Kb 大小:2781Kb
After the unsuccessful uploading of above photos I tried to upload another photo and it worked. 未能成功上传以上照片后,我尝试上传另一张照片,并且可以正常工作。 Here are the details of the photo that I was able to upload:
以下是我可以上传的照片的详细信息:
Title: 2013-03-14 10.20.16.jpg 标题:2013-03-14 10.20.16.jpg
Type: JPEG 类型:JPEG
Size: 1238Kb 大小:1238Kb
Then tried with few other photos less that 2000 kb and all those photos got uploaded. 然后尝试使用其他一些小于2000 kb的照片,然后上传所有这些照片。
Then I download a jpg image of 6 MB from net and tried to upload it. 然后,我从网上下载了6 MB的jpg图片,并尝试上传。 Surprisingly it got uploaded.
令人惊讶的是它被上传了。 Now I am totally confused, what the real issue is.
现在我完全感到困惑,真正的问题是什么。 Finally I have reached a conclusion that, the problem is only for those photos which are taken using the camera of my phone and having a size more than 2000 kb.
最终,我得出一个结论,问题仅在于使用手机的相机拍摄且尺寸大于2000 kb的照片。
Here is the android function that I am using to upload photos in to the server: 这是我用来将照片上传到服务器的android函数:
public String doFileUpload(String selectedPath,String page)
{
String response=null;
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
String urlString = Connector.URL+page;
try
{
//------------------ CLIENT REQUEST
FileInputStream fileInputStream = new FileInputStream(new File(selectedPath) );
// open a URL connection to the Servlet
URL url = new URL(urlString);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
// Allow Inputs
conn.setDoInput(true);
// Allow Outputs
conn.setDoOutput(true);
// Don't use a cached copy.
conn.setUseCaches(false);
// Use a post method.
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
dos = new DataOutputStream( conn.getOutputStream() );
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data;name=uploadedfile;filename=" + selectedPath + "" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0)
{
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// close streams
fileInputStream.close();
dos.flush();
dos.close();
}
catch (MalformedURLException ex)
{
Log.e("Debug", "error: " + ex.getMessage(), ex);
}
catch (IOException ioe)
{
Log.e("Debug", "error: " + ioe.getMessage(), ioe);
}
//------------------ read the SERVER RESPONSE
try
{
inStream = new DataInputStream ( conn.getInputStream() );
response = inStream.readLine();
inStream.close();
}
catch (IOException ioex){
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
return response;
}
Here is the PHP code for the page that I use to upload images: 这是我用来上传图片的页面的PHP代码:
<?php
$tt=$_GET["id"];
// Where the file is going to be placed
$target_path = "uploads/";
/* Add the original filename to our target path.
Result is "uploads/filename.extension" */
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
{
include("../../classes/Registration.php");
$Obj=new register();
$Obj->insert_photo_data($tt,basename( $_FILES['uploadedfile']['name']));
}
else
{
echo '[{"flag":"0"}]';
}
?>
What I am getting back when the image uploading problem occurs is: 出现图片上传问题时,我得到的是:
[{"flag":"0"}]
Change. 更改。 dos.write(buffer, 0, bufferSize);
dos.write(buffer,0,bufferSize); to dos.write(buffer, 0, bytesRead).
到dos.write(buffer,0,bytesRead)。 What reaches the server if a picture is not uploaded?
如果未上传图片,什么到达服务器?
I found the solution. 我找到了解决方案。 The issue was related to wamp.
问题与沼泽有关。 I have opened php.ini and changed the line
我打开了php.ini并更改了该行
upload_max_filesize = 2M
to 至
upload_max_filesize = 10M
Now images are getting uploaded without any problem. 现在,图像可以顺利上传。
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