我想用android作爲前端和django上傳圖片作爲後端。Android-Django圖片上傳
模型:
class Photo(models.Model):
title = models.CharField(max_length=255,blank=True)
photo = models.FileField(upload_to='photos')
description = models.TextField(blank=True)
uploaded = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
class Meta:
db_table = 'media_photos'
def __unicode__(self):
return '%s' % self.title
視圖以URL URL(R '^照片/上傳/ $', 'upload_photo'):
def upload_photo(request):
form=PhotoForm(request.POST,request.FILES)
if request.method=='POST':
if form.is_valid():
image = request.FILES['photo']
title1 =''
new_image = Photo(title=title1,photo=image,description='')
new_image.save()
response_data=[{"success": "1"}]
return HttpResponse(simplejson.dumps(response_data), mimetype='application/json')
我現在想從android訪問此處的視圖。 所以現在我的Android端代碼上傳圖片:
public void doFileUpload(String path){
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String lineEnd = "\r\n";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
String urlString = "http://"; // server ip
try
{
//------------------ CLIENT REQUEST
FileInputStream fileInputStream = new FileInputStream(new File(path));
// 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="+" ");
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + path + "\"" + 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(lineEnd);
// close streams
Log.e("Debug","File is written");
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());
String str;
while ((str = inStream.readLine()) != null)
{
Log.e("Debug","Server Response "+str);
}
inStream.close();
}
catch (IOException ioex){
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
}
}
,但它給我一個錯誤:
E/Debug(590): error: java.net.URISyntaxException: Authority expected at index 7: http://
也許你應該添加一些真實的URL到'urlString =「http://」' – zapl 2012-03-18 14:23:20
其實我已經添加了「private static String recordURL =」http://192.168.1.2/photos/upload/「;」這是調用這個上傳功能。但它仍然給我上面給出的錯誤 – user1163236 2012-03-18 17:15:03
你使用你定義的字符串嗎? 'URL url = new URL(recordURL);' – zapl 2012-03-18 17:17:29