Load data from html form, update database and display data on the same page in table using java servlet -

i need help. have small application consists of java servlet , html form. user puts data in html form , after clicking on submit button java servlet gets data in it's post method (loads in database). till works fine. using java servlet , tomcat. want display data in table on same page on html. have found, possible through ajax method. somehow can't right. here simplified code of application: java servlet:

@webservlet(name = "myservlet", urlpatterns = { "/myservlet" }) public class myservlet extends httpservlet { protected void dopost(httpservletrequest request, httpservletresponse    response) throws servletexception, ioexception { response.setcontenttype("text/html"); // getting values submitted user html form string name = request.getparameter("name"); string surname = request.getparameter("surname"); // here goes logic load data in database // data database recieved array , converted  // json  // here can print whole json retrieved db  // , displayed on page myurl/myservlet  response.setcontenttype("application/json");  printwriter out = response.getwriter();  response.setcharacterencoding("utf-8");  out.println(json);  } public void doget(httpservletrequest request, httpservletresponse   response) throws ioexception{ // nothing happens here } 

in html form have following (the important things here only):

<form action="myservlet" method="post"> <input class="form-control" type="text" name="name" id="name"> <input class="form-control" type="text" name="surname" id="surname"> <input type="submit" class="btn btn-info" id="mys"value="myservlet"> <table class="table" id="table"> <tr>     <th>name</th>     <th>surname</th> </tr> 

the user input stored in database , working fine. problem is, no response , display of data given user in table, schould updated after each submit , user schould stay on same page (don't know, how this). database array can convert json , information schould displayed in table. tried write ajax.get (i real newby in javascript):

<script> <script type="text/javascript"> $("#mys").click(function() {  } $.ajax({     url: "/myservlet",     type: "post",     datatype: '{json: json}',     data: myvalue,      success: function(data) {           $('#table').append(data);     }, }); </script> 

but no data displayed in table or somewhere. glad hints doing wrong , how should done properly? in advance.

execute these lines , tell me response in browser's console:

$.ajax({     url: "/myservlet",     type: "post",     datatype: '{json: json}',     data: myvalue,     success: function(data)      {           console.log( data ); // logs on success         $('#table').append(data);     },     **error: function (textstatus, errorthrown)      {         console.log( textstatus ); // log on error         console.log( errorthrown );     }** });