Schließen Sie die mehrteilige Anforderung mit dem Upload-Fortschritt ab
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.util.CharsetUtils;
import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyLog;
import com.beusoft.app.AppContext;
public class MultipartRequest extends Request<String> {
MultipartEntityBuilder entity = MultipartEntityBuilder.create();
HttpEntity httpentity;
private String FILE_PART_NAME = "files";
private final Response.Listener<String> mListener;
private final File mFilePart;
private final Map<String, String> mStringPart;
private Map<String, String> headerParams;
private final MultipartProgressListener multipartProgressListener;
private long fileLength = 0L;
public MultipartRequest(String url, Response.ErrorListener errorListener,
Response.Listener<String> listener, File file, long fileLength,
Map<String, String> mStringPart,
final Map<String, String> headerParams, String partName,
MultipartProgressListener progLitener) {
super(Method.POST, url, errorListener);
this.mListener = listener;
this.mFilePart = file;
this.fileLength = fileLength;
this.mStringPart = mStringPart;
this.headerParams = headerParams;
this.FILE_PART_NAME = partName;
this.multipartProgressListener = progLitener;
entity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
try {
entity.setCharset(CharsetUtils.get("UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
buildMultipartEntity();
httpentity = entity.build();
}
// public void addStringBody(String param, String value) {
// if (mStringPart != null) {
// mStringPart.put(param, value);
// }
// }
private void buildMultipartEntity() {
entity.addPart(FILE_PART_NAME, new FileBody(mFilePart, ContentType.create("image/gif"), mFilePart.getName()));
if (mStringPart != null) {
for (Map.Entry<String, String> entry : mStringPart.entrySet()) {
entity.addTextBody(entry.getKey(), entry.getValue());
}
}
}
@Override
public String getBodyContentType() {
return httpentity.getContentType().getValue();
}
@Override
public byte[] getBody() throws AuthFailureError {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
httpentity.writeTo(new CountingOutputStream(bos, fileLength,
multipartProgressListener));
} catch (IOException e) {
VolleyLog.e("IOException writing to ByteArrayOutputStream");
}
return bos.toByteArray();
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
try {
// System.out.println("Network Response "+ new String(response.data, "UTF-8"));
return Response.success(new String(response.data, "UTF-8"),
getCacheEntry());
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
// fuck it, it should never happen though
return Response.success(new String(response.data), getCacheEntry());
}
}
@Override
protected void deliverResponse(String response) {
mListener.onResponse(response);
}
//Override getHeaders() if you want to put anything in header
public static interface MultipartProgressListener {
void transferred(long transfered, int progress);
}
public static class CountingOutputStream extends FilterOutputStream {
private final MultipartProgressListener progListener;
private long transferred;
private long fileLength;
public CountingOutputStream(final OutputStream out, long fileLength,
final MultipartProgressListener listener) {
super(out);
this.fileLength = fileLength;
this.progListener = listener;
this.transferred = 0;
}
public void write(byte[] b, int off, int len) throws IOException {
out.write(b, off, len);
if (progListener != null) {
this.transferred += len;
int prog = (int) (transferred * 100 / fileLength);
this.progListener.transferred(this.transferred, prog);
}
}
public void write(int b) throws IOException {
out.write(b);
if (progListener != null) {
this.transferred++;
int prog = (int) (transferred * 100 / fileLength);
this.progListener.transferred(this.transferred, prog);
}
}
}
}
Beispielnutzung
protected <T> void uploadFile(final String tag, final String url,
final File file, final String partName,
final Map<String, String> headerParams,
final Response.Listener<String> resultDelivery,
final Response.ErrorListener errorListener,
MultipartProgressListener progListener) {
AZNetworkRetryPolicy retryPolicy = new AZNetworkRetryPolicy();
MultipartRequest mr = new MultipartRequest(url, errorListener,
resultDelivery, file, file.length(), null, headerParams,
partName, progListener);
mr.setRetryPolicy(retryPolicy);
mr.setTag(tag);
Volley.newRequestQueue(this).add(mr);
}