图像无法访问数据库
我的doInBackground（）方法
try {
File file_name=new File("/storage/sdcard1/Received/IAF-Sarang.jpg");
DefaultHttpClient mHttpClient;
HttpParams par = new BasicHttpParams();
par.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
mHttpClient = new DefaultHttpClient(par);
try {
HttpPost httppost = new HttpPost("http://www.hugosys.in/www.nett-torg.no/api/rpcs/uploadfiles/?");
MultipartEntity multipartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
multipartEntity.addPart("post_id", new StringBody("1368"));
multipartEntity.addPart("user_id", new StringBody("62"));
multipartEntity.addPart("files", new FileBody(file_name, "Content-Type: image/jpegrnrn"));
httppost.setEntity(multipartEntity);
mHttpClient.execute(httppost, new PhotoUploadResponseHandler());
} catch (Exception e) {
e.printStackTrace();
System.out.println(""+e);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return response_string;
这是PhotoUploadResponseHandler类
private class PhotoUploadResponseHandler implements ResponseHandler<Object> {
@Override
public Object handleResponse(HttpResponse response)
throws ClientProtocolException, IOException {
HttpEntity r_entity = response.getEntity();
String rString = EntityUtils.toString(r_entity);
Log.d("UPLOAD", rString);
response_string=rString;
return rString;
}
}
还有一个代码块，我已经尝试过了，但其中post_id没有到达
图像已成功张贴
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL("http://www.hugosys.in/www.nett-torg.no/api/rpcs/uploadfiles/?");
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
conn.setRequestProperty("post_id", "1368");
conn.setRequestProperty("user_id", "62");
conn.setRequestProperty("files", file_name);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data;name=files[];filename="+file_name+""+ lineEnd);
//dos.writeBytes("Content-Type: application/octet-streamrnrn");
// "image/jpeg"
dos.writeBytes("Content-Type: image/jpegrnrn");
// 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);
}
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// send multipart form data necesssary after file data...
// Responses from the server (code and message)
int serverResponseCode = conn.getResponseCode();
serverResponseMessage = conn.getResponseMessage();
is=conn.getInputStream();
Log.i("uploadFile", "HTTP Response is : "+ serverResponseMessage + ": " + serverResponseCode);
InputStreamReader inputStreamReader = new InputStreamReader(is);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String bufferedStrChunk = null;
while((bufferedStrChunk = bufferedReader.readLine()) != null){
stringBuilder.append(bufferedStrChunk);
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
看看这段使用php Web服务在服务器上上传图像和其他数据的代码。。。
"上载代码"按钮。。。
upload = (Button) findViewById(R.id.button1);
upload.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
bitmap= BitmapFactory.decodeResource(getResources(), R.drawable.img);
new ImageUploadTask().execute();
}
});
这是在服务器上上传带有数据的图像的异步任务。。。
class ImageUploadTask extends AsyncTask<Void, Void, String> {
private StringBuilder s;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
mProgress = new ProgressDialog(MainActivity.this);
mProgress.setMessage("Loading");
mProgress.setProgressStyle(ProgressDialog.STYLE_SPINNER);
mProgress.setCancelable(false);
mProgress.show();
}
@Override
protected String doInBackground(Void... unsued) {
try {
String sResponse = "";
String url = "http://www.hugosys.in/www.nett-torg.no/api/rpcs/uploadfiles/?";
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
MultipartEntity entity = new MultipartEntity();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 100, bos);
byte[] data = bos.toByteArray();
entity.addPart("post_id", new StringBody("1368"));
entity.addPart("user_id", new StringBody("62"));
entity.addPart("files[]", new ByteArrayBody(data,"image/jpeg", "test2.jpg"));
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost);
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
s = new StringBuilder();
while ((sResponse = reader.readLine()) != null)
{
s = s.append(sResponse);
}
if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
{
return s.toString();
}else
{
return "{"status":"false","message":"Some error occurred"}";
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_LONG).show();
return null;
}
}
@Override
protected void onPostExecute(String sResponse) {
try {
mProgress.dismiss();
if (sResponse != null) {
Toast.makeText(getApplicationContext(), sResponse + " Photo uploaded successfully",Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.getMessage(),
Toast.LENGTH_LONG).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
}
}
}
在Manifest.xml.中添加权限
<uses-permission android:name="android.permission.INTERNET"/>