java - Unable to send data to server in Android -


i'm new android. don't know part has gone wrong. thing i'm unable send data server in android studio.

this error i'm facing

fatal error: uncaught error: call undefined function mysql_connect() in c:\xampp\htdocs\students\connection.php:6 stack trace: #0 c:\xampp\htdocs\students\add_employee.php(2): include() #1 {main} thrown in c:\xampp\htdocs\students\connection.php on line 6

the code goes this...

main activity

public class mainactivity extends appcompatactivity  {  button b1; edittext e1; private progressdialog pdialog; private jsonobject json; private int success=0; private httpurlconnection service; private string strname =""; //initialize webservice url private string path = "http://localhost/student/add_employee.php";      @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      b1 = (button) findviewbyid(r.id.button);     e1 = (edittext) findviewbyid(r.id.edittext9);      service=new httpurlconnection();       b1.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {             if (!e1.gettext().tostring().equals("") ) {                 strname = e1.gettext().tostring();                  //call webservice                 new postdatatoserver().execute();             } else {                 toast.maketext(getapplicationcontext(), "please enter fields", toast.length_long).show();             }               intent intent = new intent(mainactivity.this, student1.class);             startactivity(intent);      } }); }  private class postdatatoserver extends asynctask<void, void, void> {  string response = ""; //create hashmap object send parameters web service hashmap<string, string> postdataparams; @override protected void onpreexecute() {     super.onpreexecute();      pdialog = new progressdialog(mainactivity.this);     pdialog.setmessage("please wait...");     pdialog.setcancelable(false);     pdialog.show(); } @override protected void doinbackground(void... arg0) {     postdataparams=new hashmap<string, string>();     postdataparams.put("name", strname);      //call serverdata() method call webservice , store result in response     response= service.serverdata(path,postdataparams);     try {         json = new jsonobject(response);         //get values jsonobject         system.out.println("success=" + json.get("success"));         success = json.getint("success");      } catch (jsonexception e) {         e.printstacktrace();     }     return null; } @override protected void onpostexecute(void result) {     super.onpostexecute(result);     if (pdialog.isshowing())         pdialog.dismiss();     if(success==1) {         toast.maketext(getapplicationcontext(), "employee added successfully..!", toast.length_long).show();     } } } }

httpurlconnection

public class httpurlconnection { string response=""; url url; public string serverdata(string path,hashmap<string, string> params) {     try {         url = new url(path);          httpurlconnection conn = (httpurlconnection) url.openconnection();         conn.setreadtimeout(15000);         conn.setconnecttimeout(15000);         conn.setrequestmethod("post");         conn.setdoinput(true);         conn.setdooutput(true);           outputstream os = conn.getoutputstream();         bufferedwriter writer = new bufferedwriter(                 new outputstreamwriter(os, "utf-8"));         writer.write(getpostdatastring(params));          writer.flush();         writer.close();         os.close();         int responsecode = conn.getresponsecode();          if (responsecode == httpsurlconnection.http_ok) {             string line;             bufferedreader br = new bufferedreader(new inputstreamreader(conn.getinputstream()));             //log.d("output",br.tostring());             while ((line = br.readline()) != null) {                 response += line;                 log.d("output lines", line);             }         } else {             response = "";         }     } catch (exception e) {         e.printstacktrace();     }     return response; }  private string getpostdatastring(hashmap<string, string> params) throws unsupportedencodingexception {     stringbuilder result = new stringbuilder();     boolean first = true;     for(map.entry<string, string> entry : params.entryset()){         if (first)             first = false;         else             result.append("&");          result.append(urlencoder.encode(entry.getkey(), "utf-8"));         result.append("=");         result.append(urlencoder.encode(entry.getvalue(), "utf-8"));     }      return result.tostring(); }}

my php code

add_employee.php

<?php include('connection.php'); $emp_name=$_post["name"]; $success=0; $status="active"; $sql = "insert  `employee` (`emp_name`)  values ('$emp_name')"; if(mysql_query($sql)) { $success=1; } $response["success"]=$success; die(json_encode($response)); mysql_close($con); ?>

connection.php

<?php  $dbhost = 'localhost'; $dbuser = 'root'; $dbpass = ''; $conn = mysql_connect($dbhost, $dbuser, $dbpass);     if(!$conn) {     die('could not connect: ' . mysql_error()); } mysql_select_db('student'); ?>


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more