node.js - Why isn't working my uploader from android to NodeJS server? -
i tried code, message http response is: 404 not found
@suppresslint("sdcardpath") public class mainactivity extends activity { textview messagetext; button uploadbutton; int serverresponsecode = 0; progressdialog dialog = null; string uploadserveruri = null; /* filepath */ final string uploadfilepath = "/mnt/sdcard/"; final string uploadfilename = "test.jpg"; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); uploadbutton = (button)findviewbyid(r.id.uploadbutton); messagetext = (textview)findviewbyid(r.id.messagetext); messagetext.settext("uploading file path :- '/mnt/sdcard/"+uploadfilename+"'"); uploadserveruri = "http://192.168.0.12:9999"; uploadbutton.setonclicklistener(new onclicklistener() { @override public void onclick(view v) { dialog = progressdialog.show(mainactivity.this, "", "uploading file...", true); new thread(new runnable() { public void run() { runonuithread(new runnable() { public void run() { messagetext.settext("uploading started....."); } }); uploadfile(uploadfilepath + "" + uploadfilename); } }).start(); } }); } public int uploadfile(string sourcefileuri) { string filename = sourcefileuri; httpurlconnection conn = null; dataoutputstream dos = null; string lineend = "\r\n"; string twohyphens = "--"; string boundary = "/upload"; int bytesread, bytesavailable, buffersize; byte[] buffer; int maxbuffersize = 1 * 1024 * 1024; file sourcefile = new file(sourcefileuri); if (!sourcefile.isfile()) { dialog.dismiss(); log.e("uploadfile", "source file not exist :" +uploadfilepath + "" + uploadfilename); runonuithread(new runnable() { public void run() { messagetext.settext("source file not exist :" +uploadfilepath + "" + uploadfilename); } }); return 0; } else { try { // open url connection servlet fileinputstream fileinputstream = new fileinputstream(sourcefile); url url = new url("http://192.168.0.12:9999"); // open http connection url conn = (httpurlconnection) url.openconnection(); conn.setdoinput(true); // allow inputs conn.setdooutput(true); // allow outputs conn.setusecaches(false); // don't use 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("uploaded_file", filename); dos = new dataoutputstream(conn.getoutputstream()); dos.writebytes(twohyphens + boundary + lineend); dos.writebytes("content-disposition: form-data; name=uploaded_file;+filename=" + filename + "" + lineend); dos.writebytes(lineend); // create buffer of maximum size bytesavailable = fileinputstream.available(); buffersize = math.min(bytesavailable, maxbuffersize); buffer = new byte[buffersize]; // read file , write 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(twohyphens + boundary + twohyphens + lineend); // responses server (code , message) serverresponsecode = conn.getresponsecode(); string serverresponsemessage = conn.getresponsemessage(); log.i("uploadfile", "http response : " + serverresponsemessage + ": " + serverresponsecode); if(serverresponsecode == 200){ runonuithread(new runnable() { public void run() { string msg = "file upload completed.\n\n see uploaded file here : \n\n" +" http://www.androidexample.com/media/uploads/" +uploadfilename; messagetext.settext(msg); toast.maketext(mainactivity.this, "file upload complete.", toast.length_short).show(); } }); } //close streams // fileinputstream.close(); dos.flush(); dos.close(); } catch (malformedurlexception ex) { dialog.dismiss(); ex.printstacktrace(); runonuithread(new runnable() { public void run() { messagetext.settext("malformedurlexception exception : check script url."); toast.maketext(mainactivity.this, "malformedurlexception", toast.length_short).show(); } }); log.e("upload file server", "error: " + ex.getmessage(), ex); } catch (exception e) { dialog.dismiss(); e.printstacktrace(); runonuithread(new runnable() { public void run() { messagetext.settext("got exception : see logcat "); toast.maketext(mainactivity.this, "got exception : see logcat ", toast.length_short).show(); } }); log.e("upload file server exception", "exception : " + e.getmessage(), e); } dialog.dismiss(); return serverresponsecode; }}} can me university thesis? moreover, if can how can save file nodejs , mongodb, him!