http post - how can i send imagedata on server using httppost in android? -

i tried convert image data "string str=base64.encodetostring(imagedata, base64.default);" , tried send not working.

even tried below,

        multipartentitybuilder builder = multipartentitybuilder.create();         builder.setcharset(mime.utf8_charset);          builder.addbinarybody("file",imagedata);          httppost.setentity(builder.build());  

still can't send image.

server url on trying send below,

"http://192.168.1.8:88/erp/demo.nsf/(demo)?operation&file=imagedata"

please give me suggestions.

thank you.

i don't think url supposed carry parameters. parameters use must added in builder text. here's code used same thing.:

@override     protected string doinbackground(string... params) {         // todo auto-generated method stub         string textfilename = params[0];         string message = "this multipart post";         string result =" ";         httppost post = new httppost("http://10.0.2.2/test/upload_file_test.php");         file file = new file(textfilename);          multipartentitybuilder builder = multipartentitybuilder.create();         builder.setmode(httpmultipartmode.browser_compatible);         builder.addbinarybody("uploaded_file", file, contenttype.default_binary, textfilename);         builder.addtextbody("text", message, contenttype.default_binary);          httpentity entity = builder.build();         post.setentity(entity);         httpclient client = new defaulthttpclient();         try {             httpresponse response = client.execute(post);             bufferedreader reader = new bufferedreader(new inputstreamreader(                     response.getentity().getcontent(), "utf-8"));             string sresponse;             stringbuilder s = new stringbuilder();              while ((sresponse = reader.readline()) != null) {                 s = s.append(sresponse);             }             system.out.println("response: " + s);          } catch (clientprotocolexception e) {             // todo auto-generated catch block             e.printstacktrace();         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }         return message;     }  } 

i used text part send message image.