2
我想從我的android應用程序上傳文件(圖像,文檔等)到我的服務器。我在我的應用程序中使用Volley庫進行網絡調用。如何在Android中使用Volley執行文件上傳?
我用下面的代碼上傳文件,但它不執行任何操作。(顯示最後凌空超時錯誤)
public class MultipartRequest extends Request<String> {
private MultipartEntity entity = new MultipartEntity();
private static final String FILE_PART_NAME = "file";
private final Response.Listener<String> mListener;
private final File mFilePart;
private String mStringPart,accessToken;
public MultipartRequest(String url, Response.ErrorListener errorListener, Response.Listener<String> listener, File file,String accessToken)
{
super(Method.POST, url, errorListener);
mListener = listener;
mFilePart = file;
this.accessToken = accessToken;
buildMultipartEntity();
}
private void buildMultipartEntity()
{
entity.addPart(FILE_PART_NAME, new FileBody(mFilePart));
try
{
entity.addPart("Content-Disposition", new StringBody("form-data"));
entity.addPart("dir_path", new StringBody("IzEzOjE3"));
}
catch (UnsupportedEncodingException e)
{
VolleyLog.e("UnsupportedEncodingException");
}
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = super.getHeaders();
if (headers == null
|| headers.equals(Collections.emptyMap())) {
headers = new HashMap<String, String>();
}
headers.put("Content-Type", "multipart/form-data");
headers.put("_pkta",accessToken);
return headers;
}
@Override
public String getBodyContentType()
{
return entity.getContentType().getValue();
}
@Override
public byte[] getBody() throws AuthFailureError
{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try
{
entity.writeTo(bos);
}
catch (IOException e)
{
VolleyLog.e("IOException writing to ByteArrayOutputStream");
}
return bos.toByteArray();
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response)
{
return Response.success("Uploaded", getCacheEntry());
}
@Override
protected void deliverResponse(String response)
{
mListener.onResponse(response);
}
}
請幫我就如何落實在Android的文件上傳(通過凌空或任何其他)
嘗試此鏈接http://stackoverflow.com/questions/18288864/how-to-multipart-data-using-android-volley –
上面的代碼是基於該鏈接編寫的...但它不適合我.. – Manikanta